Product review. Calibration technology

Transcription

1 Product review Calibration technology

2 Part of your business Contents WIKA product lines 3 Everything at a glance 4 Pressure 6 Temperature 16 Current, voltage, resistance 21 Accessories 23 Calibration systems 24 Complete solutions 26 Technical information 28 Calibration services 33 Service products 34 WIKA worldwide 40 Ability to meet any challenge As a family-run business acting globally, with over 8,500 highly qualified employees, the WIKA group of companies is a worldwide leader in pressure and temperature measurement. The company also sets the standard in the measurement of level and flow, and in calibration technology. Founded in 1946, WIKA is today a strong and reliable partner for all the requirements of industrial measurement technology, thanks to a broad portfolio of high-precision instruments and comprehensive services. With manufacturing locations around the globe, WIKA ensures flexibility and the highest delivery performance. Every year, over 50 million quality products, both standard and customer-specific solutions, are delivered in batches of 1 to over 10,000 units. With numerous wholly owned subsidiaries and partners, WIKA competently and reliably supports its customers worldwide. Our experienced engineers and sales experts are your competent and dependable contacts locally. Efficient logistics Fully automatic production Certified calibration laboratories 2

3 WIKA product lines WIKA product lines The WIKA programme covers the following product lines for various fields of application. Electronic pressure measurement WIKA offers a complete range of electronic pressure measuring instruments: pressure sensors, pressure switches, pressure transmitters and process transmitters for the measurement of gauge, absolute and differential pressure. Our pressure measuring instruments are available in the measuring ranges mbar to 0 15,000 bar. These instruments come supplied with standardised current or voltage output signals (also intrinsically safe per ATEX or with flameproof enclosure), interfaces and protocols for various field buses. Whether ceramic thick film, metal thin film or piezo-resistive, WIKA is the leading manufacturer worldwide that develops and produces the full range of today s leading sensor technologies. Mechatronic pressure measurement As a result of the almost unlimited options for different combinations of mechanical and electrical connections, an extraordinary range of instrument variants is possible. Various digital and analogue output signals are also available for these measuring instruments. For our measuring instruments we use latest sensors, tested in automotive applications millions of times over. They work without any kind of mechanical contact, consequently they are wear-resistant, and there's absolutely no influence on the mechanics. Mechanical pressure measurement Indicating pressure gauges for gauge, absolute and differential pressure with Bourdon tube, diaphragm or capsule pressure elements have been tested millions of times over. These instruments cover scale ranges from mbar to 0 7,000 bar and indication accuracies of up to 0.1 %. Diaphragm seals WIKA diaphragm seals, mounted with pressure gauges, pressure transducers, pressure transmitters etc., are recognised and valued internationally for the most difficult of measuring tasks. The measuring instruments can therefore be used at extreme temperatures ( C), and with aggressive, corrosive, heterogeneous, abrasive, highly viscous or toxic media. The optimal diaphragm seal designs, materials and filling media are available for each application. Electrical temperature measurement Our range of products includes thermocouples, resistance thermometers (also with on-site display), temperature switches as well as analogue and digital temperature transmitters for all industrial applications. Measuring ranges from ,700 C are covered. Mechatronic temperature measurement As a result of the integration of switch contacts and output signals into our mechanical temperature measuring instruments, we can offer a wide variety of combined instruments. With switch contacts the pointer position triggers a change-over. Electrical output signals are realised via an additional, independent sensor circuit (resistance thermometer or thermocouple). Mechanical temperature measurement The mechanical temperature measuring instruments work on the bimetal, expansion or gas actuation principle and cover scale ranges from C. All thermometers are suited for operation in a thermowell if necessary. Level measurement WIKA has a comprehensive range of level measuring instruments available for temperatures up to 450 C, specific gravity from 400 kg/m³ and pressure ranges up to 500 bar. This includes standard instruments and customised products. Flow measurement Orifice plates, meter runs, flow nozzles, Venturi tubes and pitot tubes are part of our portfolio of primary flow elements and restriction orifices. The wide range of our products is able to cover the majority of industrial applications. Customised solutions can be developed to meet your special needs. Calibration technology WIKA offers a broad product range of calibration instruments for the physical units of measurement for pressure and temperature, and for electrical measurands. Numerous patents ensure unmatched performance from many of our calibration instruments. The range of services covers the calibration of pressure and temperature measuring instruments in our accredited DKD/DAkkS calibration laboratories and a mobile service to calibrate your instruments on site. For all product lines product reviews are available. 3

4 From individual components... WIKA is the ideal partner for solutions in calibration technology, whether it is only a single service instrument required quickly on site, or whether a fully automated calibration system needs to be designed for the laboratory or production. We are able to offer an appropriate solution for each application. In relation to the measuring task and the measurement parameters, the following product matrix will assist you in finding the appropriate instrument within this product review. Portable pressure generation Measuring components Hand-helds, calibrators Test pumps serve as pressure generators for the testing of mechanical and electronic pressure measuring instruments through comparative measurements. These pressure tests can take place in the laboratory or workshop, or on site at the measuring point. High-precision pressure sensors and very stable standard thermometers are ideal for applications as references in industrial laboratories. Due to their analogue or digital interfaces they can be connected to existing evaluation instruments. Our hand-held measuring instruments (process tools) offer a simple capability for measurement or simulation of all established measurement parameters on site. They can be operated with a wide variety of pressure sensors or thermometers. Page 6 Page 9 Page 16 Page 7 Page 17 Page 21 Pressure Temperature Current, voltage, resistance 4

5 ... to a fully automated system Everything at a glance In the past few years WIKA has successfully integrated three renowned manufacturers of calibration equipment into the Group. Mensor is known in the market for its outstanding portfolio of pressure controllers and consolidates WIKA's position as the market leader in the worldwide calibration market. A division of the WIKA group DH-Budenberg's product range includes high-end pressure primary standards and transfer standards of the Desgranges & Huot brand as well as laboratory and industrial standards of the Budenberg brand. ASL resistance bridges with highly stable thermometers are used specifically in temperature laboratories. Digital indicating precision measuring instruments Digital precision instruments and controllers Fully automatic calibration systems as integrated solutions High-precision digital precision measuring instruments are ideal for applications as reference standards in industrial laboratories, enabling highaccuracy calibration. They feature exceptionally simple handling and an extensive range of functionality. Due to their integrated controller, these instruments offer exceptional convenience. Typically, a fully automated setting of the required value can be set via the interface. Fully automated calibration systems are customer-specific, turnkey installations which can be fitted in laboratories as well as in the production environment. With integrated reference instruments and calibration software, calibration certificates can be generated and archived in a simple and reproducible way. Page 9 Page 9 Page 24 Page 18 Page 24 Page 21 Pressure Temperature Current, voltage, resistance 5

6 Portable pressure generation Simple manual pressure generation Test pumps serve as pressure generators for the testing, adjustment and calibration of mechanical and electronic pressure measuring instruments through comparative measurements. These pressure tests can take place in the laboratory or workshop, or on site at the measuring point. CPP7 Pneumatic hand test pump CPP30 Pneumatic hand test pump CPP120-X Pneumatic comparison test pump Measuring range: -850 mbar +7 bar Ambient air Special feature: Pressure and vacuum generation switchable Low weight Compact dimensions Data sheet: CT Measuring range: -950 mbar +35 bar Ambient air Special feature: Pressure and vacuum generation switchable Compact dimensions Data sheet: CT Measuring range: bar Clean, dry, non-corrosive gases Special feature: Accurate pressure setting Robust industrial series Data sheet: CT CPP700-H, CPP1000-H Hydraulic hand test pump CPP1000-M, CPP1000-L Hydraulic hand spindle pump CPPxx00-X Hydraulic comparison test pump Measuring range: or 0 1,000 bar Oil or water Special feature: Integrated medium reservoir Ergonomic handling Data sheet: CT Measuring range: 0 1,000 bar Oil or water Special feature: Smooth-running internal precision spindle Compact dimensions Data sheet: CT Measuring range: Special feature: 0 1,000 to 0 7,000 bar Oil or water Integrated tank Robust laboratory version with priming pump Compact industrial series with dual-area spindle pump Data sheet: CT 91.05, CT and CT

7 Pressure Hand-helds, calibrators Portable calibration instruments for mobile use for the accurate measurement and recording of pressure profiles For these portable hand-held measuring instruments, exchangeable pressure sensors are available with measuring ranges up to 8,000 bar. Thus they are particularly suitable as test instruments for process technology, machine building, etc. Data recorded in the instrument can be evaluated via PC software. CPT2500 USB pressure transmitter CPH6200 Hand-held pressure indicator Measuring range: Special feature: via PC Data sheet: CT to 0 1,000 bar 0.2 %, 0.1 % (optional) Recording interval adjustable from 1 ms s No external voltage supply required Data storage and evaluation directly Measuring range: Special feature: (optional) Data sheet: CT to 0 1,000 bar 0.2 %, 0.1 % (optional) Integrated data logger Differential pressure measurement CPH6300 Hand-held pressure indicator CPH6400 Precision hand-held pressure indicator Complete test and service cases These cases can be assembled exactly to your requirements. Thus you will be fully equipped on site! Measuring range: Special feature: (optional) Data sheet: CT to 0 1,000 bar 0.2 %, 0.1 % (optional) Robust and waterproof case with IP 65, IP 67 Integrated data logger Differential pressure measurement Measuring range: to 0 6,000 bar % Special feature: Integrated data logger Temperature measurement (optional) Data sheet: CT Further information at 7

8 Hand-helds, calibrators Calibrations can be documented directly in the calibrator and later read on a PC. Optionally, a calibration certificate can be generated through software. CPH65I0 Hand-held pressure calibrator, intrinsically safe CPH6000 ProcessCalibrator CPH6600 Hand-held pressure calibrator with integrated pump Measuring range: to bar Up to % Special feature: Temperature measurement (optional) Differential pressure measurement (optional) Data sheet: CT Measuring range: to 0 8,000 bar % Special feature: Calibration function Pressure switch test Data sheet: CT Measuring range: 0 2 to 0 20 bar % Clean, dry, non-corrosive gases Special feature: Integrated electrical pressure generation Temperature measurement (optional) Pressure switch test Data sheet: CT CPH7600 Wally Box III Pascal100 Hand-held multi-function calibrator Measuring range: bar % Clean, dry, non-corrosive gases Special feature: Integrated electrical pressure generation Pressure supply via external compressed air line Robust case design, IP 67 Data sheet: CT Measuring range: 0 1,000 bar % Clean, dry, non-corrosive gases Special feature: Integrated pressure generation Large display with touchscreen Measurement and simulation of pressure, temperature, current, voltage, resistance, frequency Data sheet: CT

9 Pressure Precision pressure measuring instruments Electrical measuring systems which convert pressure into an electrical signal and optionally visualise it Due to the low, DKD/DAkkS-certified measurement uncertainty of down to % of the entire measuring chain, these instruments find their primary application as a factory/ working standard for testing and/or calibrating a variety of pressure measuring instruments. CPG500 Digital pressure gauge CPG1000 Precision digital pressure gauge Measuring range: to 0 1,000 bar 0.25 % Special feature: Simple operation using 4 buttons Robust case with protective rubber cap, IP 67 Data sheet: CT Measuring range: to bar 0.05 % Special feature: Integrated data logger Robust case with protective rubber cap, IP 65 Data sheet: CT CPT61x0 Precision pressure sensor CPG2500 Precision pressure indicator A division of the WIKA group A division of the WIKA group Measuring range: to bar 0.01 % Special feature: RS-232 or RS-485 connection Analogue output (optional) Data sheet: CT Measuring range: to 0 2,890 bar 0.01 % Non-corrosive gases, > 1 bar liquids Special feature: Up to 2 internal and 1 external sensor Barometric reference (optional) Data sheet: CT Further information at 9

10 Pressure controllers Electronic controllers which quickly and automatically provide a pressure based on a supply pressure Due to the high accuracy and control stability, these types of instruments are especially suitable as references for production lines and laboratories, in order to carry out automatic testing and/or calibration of all types of sensors. An air data test set is a an electronic controller which, based on a supply pressure, automatically provides a pressure at a variable and adjustable rate Air data test sets are specifically developed to convert the pressure to be controlled into a height or rate of climb and velocity. As a result of the high accuracy, control stability and ability to simulate altitude and velocity, an air data test set is particularly suitable as a reference for aircraft workshops and also for instrument manufacturers and calibration laboratories in the aviation industry, in order to make calibrations on sensors and displays. CPC2000 Low-pressure version CPC3000 High-speed version CPA8001 Air data test set A division of the WIKA group A division of the WIKA group A division of the WIKA group Measuring range: Special feature: Data sheet: CT to 0 1,000 mbar 0.1/0.3 % (for 0 1 mbar) Ambient air Integrated pressure generation Integrated rechargeable battery Measuring range: to bar % Dry clean air or nitrogen Special feature: Fast control speed Data sheet: CT Measuring range: Up to 3.4 bar abs % Dry, clean air or nitrogen Special feature: Excellent control stability, even with rate control Overshoot-free control Data sheet: CT CPC6000 Standard version CPC8000 Precision version CPC8000-H High-pressure version A division of the WIKA group A division of the WIKA group A division of the WIKA group Measuring range: to bar 0.01 % Dry clean air or nitrogen Special feature: Up to 2 control/measuring channels with 2 sensors each Sensors exchangeable Data sheet: CT Measuring range: to bar % Dry clean air or nitrogen Special feature: Excellent control stability and pressure control without overshooting Up to three interchangeable sensors Data sheet: CT Measuring range: to 0 1,600 bar 0.01 % Hydraulic oil or water Special feature: High stability, also for large volumes Up to two interchangeable reference sensors Data sheet: CT

11 Pressure Dead-weight testers, industrial series Compact and competitively priced dead-weight testers for use on site or for maintenance and service The direct measurement of the pressure (p = F/A), as well as the use of high-quality materials enable this small measurement uncertainty, in conjunction with an excellent long-term stability (recommended recalibration interval of five years in accordance with the German Calibration Service DKD/DAkkS). The compact dimensions and low weight are key features of these dead-weight testers for their daily use in service and work stations. With their integrated pressure generation and purely mechanical measuring principle, they are also specifically suited to on-site applications. CPB3500 Pneumatic compact version CPB3800 Hydraulic compact version CPB3800HP Compact, high-pressure version with dual-range piston-cylinder system Measuring range: to bar % Non-corrosive gases Special feature: Compact dimensions and low weight 1 bar piston for can be used for positive and negative overpressure Data sheet: CT Measuring range: to 10 1,200 bar % Special oil Special feature: Compact dimensions and low weight Instrument base can now also be combined with the CPB5800 pistoncylinder systems Data sheet: CT Measuring range: 1 2,600 bar % Special oil or others on request Special feature: Dual-range piston-cylinder systems with fully automated changing between ranges Compact dimensions and low weight Data sheet: CT Further information at 11

12 Pressure balances, laboratory version High-performance primary standards with excellent running characteristics for use in calibration laboratories The direct measurement of the pressure (p = F/A), as well as the use of high-quality materials enable this small measurement uncertainty, in conjunction with an excellent long-term stability (recommended recalibration interval of five years in accordance with the German Calibration Service DKD/DAkkS). Through modern instrument design with excellent equipment features, the highest demands of operator convenience and performance are fulfilled. The selection of dual-range pistoncylinder systems with automatic measuring range switching can ensure this measurement uncertainty over a large pressure range, even with a single measuring system. CPB5000 Pneumatic version CPB5800 Hydraulic version with dual-range piston-cylinder systems CPS5000 Hydraulic single-range piston-cylinder systems Special feature: For the highest demands on accuracy and performance Can be combined with the CPB5800 instrument base Data sheet: CT Measuring range: to bar % Non-corrosive gases Special feature: Patented system for fast piston-cylinder exchange Data sheet: CT Measuring range: to 1 1,400 bar % Special oil or others on request Special feature: Dual-range piston-cylinder systems with fully automated changing between ranges Instrument base can now also be combined with the CPS5000 pistoncylinder systems Data sheet: CT CPB5600DP Differential pressure version CPB5000HP High-pressure version Measuring range: to 25 1,600 bar % Non-corrosive gases or special oil Special feature: Two complete pressure balances within one case for real differential pressure measurements under static pressure Data sheet: CT Measuring range: 25 2,500 to 25 5,000 bar % Special oil Special feature: Robust instrument base with integrated high-pressure generation Data sheet: CT Further information at

13 Pressure Pressure balances, high-end version High-accuracy and powerful primary standards with excellent operating characteristics, based on the physical principle of Pressure = Force/Area The direct measurement of the pressure (p = F/A), as well as the use of high-quality materials enable this small measurement uncertainty, in conjunction with an excellent long-term stability (recommended recalibration interval of five years in accordance with the German Calibration Service DKD/DAkkS). Furthermore, an automatic mass handling system and pressure generation ensures fully automated calibration. The pressure balance has therefore been used for years in factory and calibration laboratories in industry, national institutes and research laboratories, and also in production by sensor and transmitter manufacturers. CPB6000 Highest-accuracy primary standard CPB6000DP Primary standard for differential pressure Measuring range: 4 5,000 bar % Dry, clean air, nitrogen or special oil Special feature: Different instrument variants for the highest demands Data sheet: CT Measuring range: bar % Non-corrosive gases Special feature: For differential pressure measurements from 10 Pa to 800 bar Data sheet: CT CPB8000 Automatic primary standard CPD8000 Digital pressure balance Measuring range: 500 5,000 bar Others on request % Sebacate oil Others on request Special feature: Automated calibration of the highestaccuracy pressure sensors, integrated pressure generation Data sheet: CT Measuring range: bar (abs. and rel.) % Non-corrosive, dry gases Special feature: Unique operating principle, ideal for automatic calibrations, no mass handling needed Data sheet: CT

14 Calibration software Easy and fast creation of a high-quality calibration certificate The WIKA-CAL calibration software is used for generating calibration certificates or logger protocols for pressure measuring instruments and is available as a demo version for a cost-free download on the homepage. A template helps the user and guides him through the creation process of a document. Calibration certificates can be created with the Cal-Template and logger protocols can be created with the Log-Template. WIKA-CAL Calibration software In order to switch from the demo version to a full version of the respective template, a USB key with the template must be purchased. The pre-installed demo version automatically changes to the selected full version when the USB key is inserted and is available as long as the USB key is connected to the computer. Cal Demo Generation of calibration certificates limited to 2 measuring points, with automatic initiation of pressures via a pressure controller. Cal Light Generation of calibration certificates with no limitations on measuring points, without automatic initiation of pressures via a pressure controller. Creation of calibration certificates for mechanical and electronic pressure measuring instruments Fully automatic calibration with pressure controllers For the recording of certificate-relevant data in combination with the CalibratorUnits of the CPU6000 series Determination of the required mass loads for pressure balances Calibration of gauge pressure measuring instruments with absolute pressure references and vice versa Data sheet: CT Cal Generation of calibration certificates with no limitations on measuring points, with automatic initiation of pressures via a pressure controller. Log Demo Creation of data logger test reports, limited to 5 measured values. Log Creation of data logger test reports without limiting the measured values. 14

15 Pressure Accessories for pressure balances CPU6000 series CalibratorUnit WIKA-CAL Calibration software Determination of the required mass loads or the reference pressure for calibration with pressure balances Recording of certificate-relevant data Calibration of gauge pressure measuring instruments with absolute pressure references and vice versa Easy calibration of pressure transmitters through the voltage supply and multimeter function Data sheet: CT Creation of calibration certificates for mechanical and electronic pressure measuring instruments Fully automatic calibration with pressure controllers For the recording of certificate-relevant data in combination with the CalibratorUnits of the CPU6000 series Determination of the required mass loads for pressure balances Calibration of gauge pressure measuring instruments with absolute pressure references and vice versa Data sheet: CT Correction of the environmental conditions to achieve the best possible accuracies WIKA-CAL calibration software CalibratorUnit CPU6000 ipad app CPB-CAL p e = m 1 - ρ l ρ m g l + σ c + (ρ Fl - ρ l ) g l Δh 10-5 Auxiliary device for calibrations of dead-weight testers for the highest accuracy Α (α + β) (t - 20) + λ pe The specified accuracy of pressure balances is valid under reference conditions, i.e. ambient temperature 20 C, atmospheric pressure 1,013 mbar, relative air humidity 40 % and for a specific installation location with a local gravitational acceleration. For ambient conditions that deviate from these, if required, corrections must be made. Description With the demo version of the WIKA-CAL software and a CPB series pressure balance, the mass discs to be applied and the corresponding reference pressure can be determined. The pressure balance data can be entered into the database manually or imported automatically via an online XML file. With the CPU6000 series instruments, the accuracy can be further increased. With the CPU6000-W, the ambient conditions can be measured, and with the CPU6000-S, the piston temperature can be measured and these can be taken into account in the calculations. As an additional parameter, the local gravity can be given for locationindependent measurements. If a pressure transmitter is being calibrated, this can automatically be read with the CPU6000-M. Thus the CPU6000-M is used as voltage supply and multimeter. Through the simple and user-friendly operation with the CPB-CAL ipad app, the disk weights to be applied for a given pressure value can be calculated. Further information at 15

16 Reference thermometers Conventional contact thermometers Due to the excellent stability and the geometrical conformance, these standard thermometers are ideally suited for applications in industrial laboratories. Here simple comparative calibrations can be carried out in baths, in tube furnaces and in dry-well calibrators. The advantage of these reference thermometers is the wide temperature range, and with this, their flexible operation. Furthermore, with their low drift, a long service life is ensured. CTP2000 Platinum resistance thermometer CTP5000 Reference thermometer CTP5000-T25 Reference thermometer Measuring range: C Stability: < 50 mk after 100 h at 450 C Dimensions: Ø 4 mm, l = 500 mm Special feature: 4-wire connection Ends with 4 mm banana plugs Data sheet: CT Measuring range: C Sensor type: Pt100, Pt25 Dimensions: Depending on version Special feature: Free cable ends DIN or SMART connector Data sheet: CT Measuring range: C Sensor type: Pt25 Dimensions: d = 7 mm, l = 480 mm Special feature: Free cable ends DIN or SMART connector Data sheet: CT CTP9000 Thermocouple Measuring range: 0 1,300 C Thermocouple: Type S per IEC 584, class 1 Dimensions: Ø 7 mm, l = 600 mm (incl. handle) Special feature: Cold junction optional mm cable Ends with 4 mm banana plugs Data sheet: CT

17 Temperature Hand-helds Portable measuring and calibration instruments for mobile use For these portable measuring instruments there are various designs of thermometers available. They are therefore particularly suitable as test instruments for a wide variety of fields such as sterile process technology, machine building, etc. Furthermore, depending on the version, functions such as a data logger and a serial interface are available, so that immediate on-site measurements can be made and documented, and with this, the data can also be simultaneously archived. CTR1000 Infrared hand-held thermometer CTH6200 Hand-held thermometer CTH6300 Hand-held thermometer Measuring range: ,000 C 2 K or 2 % of reading Special feature: Thermocouple connection (optional) Data sheet: CT Measuring range: C < 0,2 (complete measuring chain) Sensor type: Pt100 Special feature: Integrated data logger Data sheet: CT Measuring range: ,500 C K Sensor type: Pt100, TC Special feature: 2 channels (optional), Ex version (optional) Data sheet: CT CTH6500 Hand-held thermometer CTH7000 Hand-held thermometer Measuring range: ,500 C K Sensor type: Pt100, TC Special feature: Ex version (optional) Data sheet: CT Measuring range: C K Sensor type: Pt100, Pt25 and NTC Special feature: Integrated data logger Data sheet: CT Further information at 17

18 Portable temperature calibrators Electronic controllers which automatically, quickly and dryly supply a temperature Due to the high reliability, accuracy and simple operation, this type of instrument is particularly suitable as a factory/ working standard for the automatic testing and/or calibration of temperature measuring instruments of all types. A major advantage is offered by the large sleeve diameters and the fast, stable temperature control, since, as a result of these characteristics, the time for calibration can be used very effectively. CTI5000 Infrared calibrator CTD Compact temperature dry-well calibrator CTD9100 Temperature dry-well calibrator Measuring range: C Stability: K Special feature: Large diameter of measuring surface Data sheet: CT Measuring range: t amb 375 C K Stability: 0.05 K Immersion depth: 100 mm Data sheet: CT Measuring range: C K Stability: K Immersion depth: 150 mm Data sheet: CT CTM Multi-function calibrator CTD9300 Temperature dry-well calibrator CTD High-temperature dry-well calibrator Measuring range: C depending on the application K depending on the application Immersion depth: 150 mm Special feature: Application as dry-well calibrator, micro calibration bath, infrared calibrator and surface calibrator Data sheet: CT Measuring range: C K Stability: K Immersion depth: 150 mm Data sheet: CT Measuring range: 200 1,100 C 3 K Stability: 0.3 K Immersion depth: 220 mm, bore depth 155 mm Data sheet: CT

19 Temperature Calibration baths Electronic controllers which automatically, quickly and with the help of a liquid supply a temperature Due to the high reliability, accuracy and exceptional homogeneity in the measuring chamber, this type of instrument is particularly suitable as a factory/working standard for the automatic testing and/or calibration of the widest range of temperature sensors - independent of diameter. A special micro calibration bath design enables on-site applications. CTB9100 Micro calibration bath CTB9400 Calibration bath, medium measuring range Measuring range: C K Stability: ±0.05 K Special feature: Short heating and cooling times Easy to use Data sheet: CT Measuring range: C Stability: 0.02 K Immersion depth: 200 mm Water, oil or similar media Data sheet: CT CTB9500 Calibration bath, low measuring range Measuring range: C Stability: 0.02 K Immersion depth: 200 mm Water, oil or similar media Data sheet: CT Further information at 19

20 Temperature Resistance thermometry bridges Electronic thermometry bridges which measure with high accuracy By using standard resistors, resistance thermometry bridges measure resistance ratios with high accuracy, which are indicative of the temperature, among other things. Due to their high accuracy, these instruments are not only used in the field of temperature measurement, but also in electrical laboratories. CTR2000 Precision thermometer CTR5000 Precision thermometer CTR6000 DC resistance thermometry bridge Measuring range: C 0.01 K (4-wire), 0.03 K (3-wire) Sensor type: Pt100, Pt25 Special feature: 3-wire measurement (optional) Up to 8 channels integrated in the instrument (optional) Data sheet: CT Measuring range: C 0.01 K, optional K Sensor type: Pt100, Pt25 Special feature: Integrated data logger (optional) Up to 64 channels Data sheet: CT Measuring range: C ± 3 mk (full range) Sensor type: PRT, thermistors or fixed resistors Special feature: Expendable to up to 60 channels (optional) Internal resistors 25 Ω, 100 Ω, 10 kω, 100 kω Data sheet: CT CTR6500 AC resistance thermometry bridge CTR9000 Primary-standard resistance thermometry bridge Measuring range: C mk depending on resistance ratio Sensor type: SPRT, PRT or fixed resistors Special feature: Expendable to up to 60 channels (optional) Internal resistors 25 Ω, 100 Ω AC technology Data sheet: CT Measuring range: Sensor type: Special feature: AC technology Data sheet: CT Ω 0.1 ppm, 20 ppb optional SPRT, PRT or fixed resistors Expendable to up to 60 channels (optional) 4 selectable standby currents possible (optional) 20

21 Current, voltage, resistance Hand-helds, calibrators Portable measuring and calibration instruments for mobile use Due to unparalleled performance characteristics and low measurement uncertainties these instruments are used for calibration in industry (laboratories, production, workshops), in calibration service companies and in quality assurance. CEP1000 Hand-held loop calibrator CEP3000 Hand-held temperature calibrator CEP6000 Hand-held multi-function calibrator Measuring range: 0 24 ma, 0 28 V % Special feature: Simulates, powers and measures 2-wire transmitters Data sheet: CT Measuring range: mv, 5 3,200 Ω ,200 C (type J) C (Pt100) 0.4 C (type J), 0.33 C (Pt100) Special feature: Measurement and simulation of thermocouples and resistance thermometers Data sheet: CT Measuring range: 0 24 ma, 0 30 V, 5 4,000 Ω 2 CPM 10 khz ,200 C (type J) C (Pt100) % Special feature: Measurement and simulation of thermocouples, resistance thermometers, resistance, current, voltage, frequency, pulse and pressure Data sheet: CT CED7000 High-precision process calibrator Pascal ET Hand-held multi-function calibrator Measuring range: ma, V, 5 4,000 Ω ,200 C (type J) C (Pt100) % Special feature: High-precision measurement and simulation of thermocouples and resistance thermometers, resistance, current, voltage and pressure Data sheet: CT Further information at Measuring range: ma, 0 80 V, 5 10,000 Ω 0 50 khz ,200 C (type J) C (Pt100) % Special feature: Large display with touchscreen Integrated data logger and calibration function Measurement and simulation of temperature, current, voltage, resistance, frequency, pressure Data sheet: CT

22 Current, voltage, resistance Standard reference resistors, AC/DC Electrical comparison standard Reference resistors with high-accuracy, fixed resistance values, which are used in connection with resistance thermometry bridges. They are also used as standards in accredited electrical laboratories. CER6000-RR Reference resistor CER6000-RW Standard reference resistor Resistance value: 1, 10, 25, 100, 300, 400, 500, 1,000 and 10,000 Ω Long-term stability: < ± 5 ppm per year Special feature: Low temperature coefficient Rugged stainless steel construction Data sheet: CT Resistance value: 1, 10, 25, 100, 300, 400, 500, 1,000 and 10,000 Ω Long-term stability: 2 ppm per year (HS version 0.5 ppm per year) Special feature: Low temperature coefficient Rugged stainless steel construction Data sheet: CT Connections of the reference resistor, model CER6000-RR Red V A IA Red Reference resistor, model CER6000-RR with 100 Ω White V B IB White Reference resistor, model CER6000-RR with different resistance range 22

23 Complete solutions Complete solutions Simple checking or professional calibration CPH6000, CPP30 Calibration of a process transmitter CPH6600 Calibration of a process transmitter CPH6400, CPP7000-X High-pressure calibration Pressure generation with the pneumatic hand test pump CPP30 Reading of the electrical signal of the process transmitter via the electrical input of the CPH6000 Recording of the calibration in the CPH6000 and later evaluation on a PC in conjunction with the WIKA-CAL software Pressure generation with the integrated electrical pump of the CPH6600 Reading of the electrical signal of the process transmitter via the electrical input of the CPH6600 Pressure generation with the hydraulic high-pressure pump CPP7000-X Reading of the electrical signal of the calibration item via a digital indicator Online acquisition of the calibration data and generation of calibration certificates in conjunction with the WIKA-CAL software CTH6200 CEP6100 CTB9100 Online temperature measurement On-site calibration of a temperature sensor Optional: With data logging and subsequent transfer of the logged data to a PC. Stable control of temperature with the CTB9100 micro calibration bath Accurate measurement of temperature with the CEP6100 logging, handheld multi-function calibrator Transfer of the calibration data to a PC incl. generation of the calibration certificate Further information at 23

24 Calibration systems for workshops and laboratories Turnkey customer-specific systems for adjustment and calibration of pressure and temperature measuring instruments Precision calibration instruments are the starting point for resolving your test requirements, even though they are only one component of a high-performance calibration system. From our extensive product range, we can design you a complete and individual solution with adaptability for test items, pressure and vacuum supply, components for pressure control and fine adjustment, through to voltage supply and multimeters for the calibration of electrical test items. Whether built-in to test benches, mobile test carts or 19" racks and supplemented with user-friendly calibration software, you will get a complete system, tailored to your requirements with the desired level of automation. The use of high-quality proven components, ergonomic usability and a cost-effective overall concept with high customer benefit are made a priority. Take advantage of our experience and the proven operation of such systems in WIKA's own accredited laboratories and manufacturing facilities. Adjustment and calibration benches Mobile calibration benches Test systems Measuring range: Special feature: bar pneumatic 10 1,600 bar hydraulic Depending on the measuring devices used Compressed air, nitrogen, oil or water Provision of pressure in workshops and laboratories Measuring range: Customer-specific Down to % Compressed air, nitrogen, oil or water Special feature: Self-contained, mobile calibration system for workshops and on-site service Measuring range: Customer-specific Down to % Compressed air, nitrogen, oil or water Special feature: Measurement parameters pressure, temperature and electrical measurement parameters Automated pressure calibration systems Automated temperature calibration systems Complete setup of laboratories Measuring range: Customer-specific Down to % Compressed air, nitrogen, oil or water Special feature: Complete turnkey system 24 Measuring range: Stability: Special feature: Customer-specific Up to K Water, alcohol, silicone oil or salt Complete turnkey system Measuring range: Special feature: Customer-specific Measurement parameter pressure up to % Measurement parameter temperature up to K Complete solutions from one source - from factory calibration laboratories through calibration vehicles up to national laboratories

25 Calibration systems Test stands and calibration systems for production From consultation through design to implementation - all from one source. Our particular strength lies in the project planning, development and the building of complete, individual, application-specific systems - from simple manual work stations through to fully automatic test systems in production lines - for the following applications: Calibration and adjustment of Pressure sensors Pressure transmitters Process transmitters The precise interaction of measurement technology, test system mechanics and control components is a top priority here. The complete solutions are available in the widest variety of build stages incl. tempering units, workpiece transport systems, workpiece fixtures and electrical and pressure-side contacting. Furthermore, there is also the possibility of integrating mounting or labelling operations on the test pieces into the overall concept. You can be assured of our capabilities. 19" test and calibration racks for pressure sensors Batch testing systems for pressure sensors Inline calibration systems for pressure sensors Measuring range: Customer-specific Up to 400 bar pneumatic Up to 1,600 bar hydraulic Down to % Special feature: Compact units with CPC series pressure controllers, working pressure supply, electrical supply and signal evaluation for the test items Measuring range: Customer-specific Up to 1,050 bar pneumatic Up to 6,000 bar hydraulic Down to % Temperature range: C Special feature: With retractable tempering chamber, workpiece carrier for up to 200 pressure sensors, electrical and pressure-side contacting Measuring range: Customer-specific Up to 1,050 bar pneumatic Up to 6,000 bar hydraulic Down to % Temperature range: C Special feature: Integration into customer's production line, linking multiple tempering chambers, automatic changeover of electrical and pressure-side contacts Further information at 25

26 Accessories From single components to complete kits For pressure as a measurement parameter, we offer from thread adapters, through sensors to complete service kits - all you could need for calibration. Customer-specific drilled inserts, silicone oil suited for calibration in micro calibration baths and interface cables complete the product portfolio for temperature. Hardware Pressure Hardware Temperature Software Pressure and temperature 26

27 Accessories Pressure supply packages These packages are the ideal complement to the individual calibration instruments. Thus a complete solution is not only quickly and easily configured, but can also be installed in the same manner. The various packages complete the product programme for calibration technology and can be used in many different applications. Both as pressure supply for pressure controllers and laboratory measuring instruments, and for supplying pressure for pressure manifolds or complete calibration benches. CPK-PS10 Pressure supply package 10 bar CPK-PS40 Pressure supply package 40 bar CPK-PS300 Pressure supply package 300 bar 10 bar air compressor with storage tank, filter and pressure reducer Pressure generation from atmospheric pressure to 10 bar 40 bar air amplifier with storage tank, filter and outlet pressure reducer mounted on a base plate Compressed-air increase from domestic mains pressure ( bar) to 40 bar 300 bar high-pressure compressor with filter system, optionally expandable with storage components Pressure generation from atmospheric pressure to 300 bar CPK-PS400 Pressure supply package 400 bar CPK-VP Vacuum pressure supply package, laboratory series CPK-VP Vacuum pressure supply package, industrial series 400 bar high-pressure compressor station with tubular accumulator, filter and outlet pressure reducer, mounted on a stainless steel rack Construction: Two-stage rotary vane pump, oil-lubricated Nominal pumping speed: 14 m³ x h -1 Final total pressure: 5 x 10-4 mbar Construction: Two-stage diaphragm pump, drycompressing Nominal pumping speed: 1.2 m³ x h -1 Final total pressure: 8 mbar 27

28 Operating principle Pressure balances Mechanical dead-weight testers (primary standards), based on the physical principle Pressure = Force/Area. Mass Mass pieces placed on the top of a piston-cylinder system are the source of a precisely defined force. By producing a certain pressure (counter pressure) inside the pressure balance by using (for example) the integrated hand pump, an equilibrium is achieved. In the state of equilibrium the pressure is high enough, such that the mass pieces, incl. the free-running piston of the piston-cylinder system, are floating, which will lead to a very accurate pressure at the test port. Piston-cylinder system Pump Test port The resource needed in this case is a pressure supply, but only for pneumatic applications > 10 bar, or a vacuum source for negative pressure versions. Advantage: Large measuring range coverage is possible, long recalibration intervals and stand-alone operation. Digital pressure balances Digital pressure balances require no mass-disc handling. p In contrast to the mechanical dead-weight testers, with digital pressure balances, no mass discs are used. Via a pistoncylinder unit, the applied pressure, P, is converted into a force, F, (F = P x A), which is then weighed (m = F/g), i.e. the cylinder pressure is directed onto a load cell which works on the principle of electromagnetic force compensation. p = F/A F = m x g A (piston) Cylinder m (load cell) This unique measuring principle of digital pressure balances in combination with pressure controllers enables a fully automatic calibration with the highest accuracy. With the integrated measurement module for environmental conditions, the reference value is automatically corrected. F 28

29 Technical information Pressure sensor and pressure sensor with display or pressure indicator Electrical measuring systems which convert pressure into an electrical signal and optionally visualise it. Pressure sensors and indicators convert the physical property of pressure into a proportional electrical signal which will be accessible via analogue or digital interface for further use or processing. Indicators usually offer, in addition to displaying the signal in various pressure units, the possibility of using diverse implemented functions (MIN/MAX memory, etc.). The resource needed in this case is a power supply. Advantage: pressure signal available via electrical interface and, if required, displayed visually. Sensor Sensor Electr. signal E P Pressure E P Pressure Pneumatic pressure controller Electronic controllers which quickly and automatically provide a pressure based on a supply pressure. Pneumatic: An entered set point, set via keypad or electrical interface, is quickly and accurately made available at the output (test port), using a control unit; consisting of a valve unit and a precision pressure sensor. This is achieved by appropriately regulating a connected pneumatic pressure supply (> 100 %). To control pressure values lower than the ambient air pressure, a vacuum source must also be connected to the device. Hydraulic: Here, a fluid medium (e.g. distilled water) is compressed by the control unit. This is done by a closed-loop control circuit based on a pneumatic primary control circuit ( bar) and a mechanical pressure multiplier with a hydraulic output (secondary circuit). The resources needed in this case are, in addition to a power supply, a pressure supply and if needed a vacuum source. Advantage: Fast provision of pressure and full automation via electrical interface Supply pressure Valves Sensor E P Test port Exhaust/vacuum 29

30 Operating principle Dry-well calibrators Electronic controllers which automatically, quickly and dryly supply a temperature. With these instruments, a controllable temperature is produced within a solid block, with the aim of calibrating thermometers in the bores within this block. A temperature dry-well calibrator consists, at the very least, of a solid block, a temperature control unit for the block and a calibrator thermometer (internal reference) with a display for determining the block temperature. Calibration baths Electronic controllers which automatically, quickly and with the help of a liquid supply a temperature With these instruments, a controllable temperature is produced within a liquid tank, with the aim of calibrating thermometers. A micro calibration bath consists, at the very least, of a liquid tank, a correctly selected liquid for the tank and a calibrator thermometer (internal reference) with a display for determining the tank temperature. The components mentioned above are combined as a compact instrument. Sensor to be calibrated Sensor to be calibrated Controller Controller Insert Circulated liquid Metal block Heating block Internal sensor Stirrer Control sensor 30

31 Technical information AC resistance thermometry bridges When a constant current is passed through a thermometer of resistance R t and a fixed reference resistor of known value R s, the voltage across them will be in direct proportion to their resistance values. The ratio of the two voltages and therefore of the two resistors, can be measured very accurately using high-precision potentiometer techniques employed in the ASL AC bridges. As R s is known, R t can be determined from n=r t /R s, where n is the measured ratio. Rs Rt Detector The advantages of the AC resistance bridge ASLs low-frequency AC (alternating current) bridge technology has major advantages over DC (direct current) systems for high-precision measurement of platinum resistance thermometers, two of which are: DC generates small voltages in the thermometer, reference resistor and cables, across every junction where different materials are used, for example copper, tin, platinum, palladium, nickel etc. These voltages, which add to or subtract from the measured voltages, are dependent on the various temperature differences at these junctions, hence they are referred to as Thermal EMFs. These variable voltages cause measurement errors and the more accurate DC bridge systems switch the polarity of the current to try to solve the problem, taking between 2 and 4 seconds for each reversal. The ASL AC bridges with their AC current perform this reversal automatically 75 times a second, a much more effective solution. Active circuits, which are fundamental to the performance of DC systems, suffer from ambient temperature changes and the effects of component ageing. Fundamental to the ASL AC bridges accuracy is its inductive voltage divider - a passive, precision voltage divider, the performance of which is unaffected by ambient temperature change and by time. DC bridges require very stable and accurate electronics to achieve their performance. Because active circuitry within the AC bridge is secondary to performance, the effects of active component drifts and ageing are therefore minimised. This results in an instrument which does not require regular recalibration to remain within specification. 31

32 Calibration Product quality, operational safety and cost effectiveness relate directly to an accurate and reliable registration of the process variables. Therefore, you should entrust the calibration and maintenance of your measuring instruments to a competent partner. Since 1982, the WIKA calibration & service centre in Klingenberg has been a member of the German Calibration Service (Deutscher Kalibrierdienst - DKD) and is accredited to DIN EN ISO / IEC Since then we have been actively participating in DKD working groups as well as standardisation committees - contributing our experience to technological progress. Carrying out a calibration Prior to calibration an evaluation of the calibration capability of the instruments is performed and, if necessary, an adjustment. The calibration is carried out in accordance with the valid directives. The results of the calibration are documented in a calibration certificate and the calibration item receives a calibration mark. We perform calibration of pressure, temperature and electrical measuring instruments from our own production as well as instruments from all other manufacturers. Depending on your requirements you can select either a traceable calibration or a factory calibration. DKD/DAkkS calibration Factory calibration List of single measured values Specification of the applied reference standard Calculation of mathematical parameters Calculation of the expanded measurement uncertainty (as required in ISO 9001) List of single measured values Specification of the applied reference standard Traceability to the national standard of the PTB is guaranteed Traceability of the testing devices to the national standard is given, as a rule Documentation and graphic illustration in a traceable certificate Documentation in an inspection certificate (no formal obligation) European co-operation for Accreditation ensures worldwide acceptance No normative or internationally agreed standards DKD/DAkkS calibration certificate Inspection certificate 3.1 according to EN

33 Calibration services Calibration services Our calibration laboratory has been accredited for pressure since 1982 and for temperature since 1992 in accordance with DIN EN ISO/IEC Since 2014, our calibration laboratory has also been accredited for the electrical measurement parameters DC current, DC voltage and DC resistance. From -1 bar +8,000 bar D-K From -196 C +1,200 C D-K We calibrate your pressure measuring instruments quickly and precisely: in the range of -1 bar... +8,000 bar using high-precision reference standards (pressure balances) and working standards (precise electrical pressure measuring instruments) with an accuracy from % % of reading depending on the pressure range in accordance with the directives DIN EN 837, DAkkS-DKD-R 6-1, EURAMET cg-3 or EURAMET cg-17 We calibrate your temperature measuring instruments quickly and precisely: in the range of -196 C +1,200 C in calibration baths, tube furnaces or at fixed points using appropriate reference thermometers with an accuracy of 2 mk K depending on temperature and the procedure in accordance with the appropriate DKD/DAkkS and EURAMET directives DC current, DC voltage and DC resistance D-K On-site calibration D-K We calibrate your electrical measuring instruments quickly and precisely: DC current in the range 0 ma ma DC voltage in the range 0 V V DC resistance in the range 0 Ω to 10 kω in accordance with the directives: VDI/VDE/DGQ/DKD 2622 In order to have the least possible impact on the production process, we offer you a time-saving, on-site DAkkS calibration throughout Germany (measurement parameter pressure). We calibrate your pressure and temperature measuring instruments quickly and precisely: in our calibration van or on your workbench with a DAkkS accreditation for pressure - in the range from -1 bar... +8,000 bar - with accuracies between % and 0.1 % of FS for the standard used Inspection certificates 3.1 for the measurement parameter temperature from -55 C... +1,100 C 33

34 Service package Basic The Basic service package immediately lets you plan your servicing even better. You only have to compile your individual package from the services available, define the service intervals and the duration - and we take care of everything else. Our range of services Your benefits Factory calibration and DKD/DAkkS calibration of pressure controllers, pressure balances, temperature calibrators, calibration baths and process calibrators (independent of manufacturer) Maintenance of measuring and calibration instruments and of complete calibration benches and testing plants Mobile calibration service: factory calibration, DKD/DAkkS calibration, maintenance and adjustment Constant prices over the duration of the service package Long-term reduction of service costs Easy calculation of costs Customised service package Convenient order processing Automatic reminder prior to each service (optional) Flexible choice of service intervals and duration period of package

35 Service products Service package Take Care Long-term stability is one of the major criteria for a calibration instrument. With our Take Care service package we do not only offer you the best functional safety for your WIKA calibration instrument, but also reduce your service costs at the same time. In addition, you will enjoy further exclusive privileges on our service products - this ensures that you will appreciate your WIKA calibration instrument for a long time! Package components Your benefits The Take Care service package is available for all new and existing WIKA calibration instruments* and includes the following services: 1 extra year of guarantee terms * 20 % discount on recalibration (DKD/DAkkS and factory calibration) 20 % discount on preventive maintenance 20 % discount on our Express service 20 % discount on our Pick up and delivery service 50 % discount when registering for a calibration seminar or when booking individual product training on your premises Free software updates Optimum functional safety for your measuring instrument Long-term reduction of your service costs Many price advantages on service provisions and products Additional safety through 1 extra year of guarantee terms in addition to legal guarantees** Package duration period The Take Care service package for calibration instruments is valid for 3 years after the purchasing date or 5 years for pressure balances/dead-weight testers. After expiry, the package can be reordered as often as required. *With the exception of hand test pumps **Only applies when purchasing the service package Take Care in combination with a new instrument 35

36 Express service Long downtimes of your measuring instruments are a thing of the past with the WIKA Express service. We calibrate and repair your instruments in a minimum of time while meeting the highest quality claims. Our range of services Your benefits Factory calibration and DKD/DAkkS calibration (independent of manufacturer) of up to 5 measuring devices within 3 working days Repair of measuring and calibration instruments (WIKA) within 4 working days Minimum downtimes of measuring instruments Fast reaction times Reduction of costs caused by machine or plant downtimes Priority order processing DKD/DAkkS calibration is also possible over weekends Free choice of shipping method Processing time The processing time for one standard repair takes one to four working days, depending on the instrument model and the extent of repairs. Calibration of up to five measuring instruments is carried out within three working days. (The time periods mentioned refer to internal processing of the order, from goods received to shipping).

37 Service products Pick up and delivery service A date for servicing your calibration instrument always requires a little effort. But there is another way: With our Pick up and delivery service we can transport your measuring and calibration instruments safely, reliably and without risk. Simply book the pick up and delivery service at your convenience through our service team - we will organise the rest! Pick up and delivery service WIKA: personal & direct Our services Your benefits Collection and delivery by a WIKA employee Safe transport of the instruments in transport boxes Optional: dismounting and commissioning of the measuring and calibration instruments on site No transport risks Flexible collection and return location No packaging necessary Personal & direct Pick up and delivery service time - X: flexible & fast Our services Your benefits Organised collection and return through our partner time-x courier service No transport risks Direct shipping route No bulk collections Flexible & fast Pick up and delivery service TNT: low-cost Our services Your benefits Organised collection and return through our partner TNT No transport risks Optional: shock absorbers to increase safety during transport Low-cost 37

38 Rental and lend service You calibrate measuring instruments in your processes and have bottlenecks at present? Just add an additional calibration instrument - the WIKA rental and lend service offers you the suitable calibration instrument for your application, fast and without major investments. Rent Our services Your benefits WIKA calibration instrument incl. DKD/DAkkS certificate for a period of up to 6 weeks Application No major purchasing costs The latest generation of instruments Predictable costs for the entire rental period No unexpected service costs Flexible rental period up to 6 weeks Calibration tasks for the measurement parameters pressure, temperature, current, voltage and resistance Lend Our services Your benefits Free WIKA calibration instrument for a period of up to 2 weeks Free of charge Assistance in purchasing decisions Application Demonstration purposes, functional checks, purchasing decisions, etc. 38

39 Service products Service and consulting CT Service Hotline Seminars Information on calibration in the WIKA laboratory or on-site calibrations is available from our CT service team. Monday - Friday from 6.30 a.m. to 4 p.m. Phone ctserviceteam@wika.com Our seminars on the topic of calibration technology let you expand your know-how, further your practical knowledge and keep you abreast of the latest developments. In addition to learning about the theoretical basics you will be carrying out calibrations yourself, both manually and fully automated, with the aid of tasks in the practical part. Calibration seminar pressure Calibration seminar temperature Online services Further information on our services and products offering can also be found on our website. Return of goods If you wish to send your measuring instrument for calibration to the WIKA calibration & service centre, please use our form at (Service Return of goods) Trainings In addition to our calibration seminars, you also have the option of receiving training customised to your needs. No matter if for one person or a group, on your premises or at WIKA - you design your training. Product trainings Calibration trainings Software trainings Consulting We would be pleased to assist and advise you in the selection of suitable solutions for extending your equipment pool. 39