O 2 DO Meters. Oxygen Meters. Handheld oxygen meters Portable oxygen meters Laboratory oxygen meters. Literature

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1 O 2 DO Meters Oxygen Meters Handheld oxygen meters Portable oxygen meters oxygen meters Oxygen sensors Accessories Dissolved Oxygen Some oxygen is dissolved in practically every liquid. For example, at a temperature of 20 C and an atmospheric pressure of 1013 mbar saturated water contains about 9 mg/l oxygen. Ethanol can contain up to 40 mg/l whereas glycerol only has about 2 mg/l. Each liquid takes up oxygen until the partial pressure of oxygen in the liquid is in equilibrium with the air or gas phase in contact with it. The actual oxygen concentration depends on a number of factors, such as temperature, air pressure, oxygen consumption by microorganisms in a biodegradation process or oxygen production by algae, etc. The oxygen concentration is decisive for the: Living conditions for fish and microorganisms in waters Degradation processes in wastewater treatment Corrosion processes in pipelines Shelf life of beverages, etc. The determination of the oxygen concentration was formerly carried out by the WINKLER titration method. Today electrochemical measurement is a recognized method in numerous standard procedures. In its simplest form an oxygen sensor contains a working electrode and a counterelectrode. Both electrodes are located in an electrolyte system which is separated from the sample by a gas-permeable membrane. The working electrode reduces the oxygen molecules to hydroxide ions. In this electrochemical reaction a current flows from the counterelectrode to the working electrode. The more oxygen present in the sample, the larger the current signal. The oxygen meter calculates the oxygen concentration in the sample from this signal with the aid of a solubility function. Literature Further information on this subject can be requested from WTW: Application reports Offprints 58

2 Oxygen Meters & Field General Handheld oxygen meters Portable oxygen meters Oxygen meters for every application Model from page Handheld - Quality in a set of three 60 oxygen meters - Simple to use - Proven with memory function - All-rounder with interface Portable Classic 64 oxygen meters robust, shockproof, waterproof, portable, oxygen measurement at depths down to 100 m inolab -top-class at two levels 66 oxygen meters - Compact and communicative - Flexible and powerful Oxygen meter accessories 70 Oxygen sensors, sensor accessories, stirring attachments 70 Calibration and storage vessels 74 Recommended accessories 75 Stands and sensor holders, stirrers, flow-thru cells, sample bottles 75 For documentation Software, printer and accessories 180 Further instruments for oxygen measurement from page Multi-parameter instruments 96 BOD determination with WTW oxygen meters from page BOD measurement according to EN and EN ISE ORP ph Oxygen (D.O.) Respiration BOD Multi- Parameter Sample Preparation Colony Counter Conductivity Photometry Turbidity Software, Printers oxygen meters Customer Service 59

3 O 2 General Information about handheld oxygen meters can be found on pages DO Meters Handheld Oxygen Meters Oxi 315i, Oxi 330i, Oxi 340i NEW Handy Waterproof Easy to use Low-power system allows continuous operation for up to 2000 h GLP-conform Complete in SET Pocket-size precision WTW handheld oxygen meters are both dustproof and waterproof as well as being submersible. The large clear display with operator guidance allows the measurements to be read off unambiguously and comfortably. The silicone keys with tactile answerback guarantee simple operation. 60

4 Oxi 315i, Oxi 330i, Oxi 340i handy waterproof GLP-conform Handheld Oxygen Meters & Field General WTW handheld oxygen meters are available in three versions: Oxi 315i: Simple, robust handheld meter with simplified keypad, without memory function and with no manual input facilities; together with DurOx 325 particularly suitable for use in aeration tanks ISE ORP ph Oxygen (D.O.) Oxi 330i: Proven robust battery-operated handheld meter with manual input functions, built-in datalogger, GLPsupporting functions, automatic temperature, air pressure and salinity compensation... Oxi 340i: As Oxi 330i, but with additional analog and digital RS 232 output and mains power supply as option Software, Printers Respiration BOD Multi- Parameter Sample Preparation Conductivity Photometry Turbidity Colony Counter Oxi 315i IP 66 IP 67 Customer Service IP 66 Year IP 67 3 Warranty 61

5 O 2 SET Equipment Each handheld oxygen meter is available in a complete equipment set Technical Data Basic equipment: Professional case with built-in measuring set-up and separate compartment for sensor and accessories Oxygen meter with batteries Oxygen sensor as chosen Calibration and storage vessel, e.g. OxiCal -SL 3 exchange membrane heads, e.g. WP 90/3 Cleaning solution RL/G Electrolyte solution ELY/G Abrasive film SF 300 Plug-in power supply (only Oxi 340i) Operating instructions Model Oxi 315i Oxi 330i Oxi 340i Measuring range/ O 2 concentration mg/l (19.9 mg/l*) O 2 concentration mg/l (19.9 mg/l*) resolution mg/l (90 mg/l*) mg/l (90 mg/l*) O 2 saturation % (199%*) O 2 saturation % (199%*) % 0 600% O 2 part. press. 0, mbar (199 mbar*) mbar Temperature C Temperature C *if DurOx oxygen sensor is used *if DurOx oxygen sensor is used Accuracy O 2 concentration ±0.5% of value O 2 concentration ±0.5% of value (±1 digit) O 2 saturation ±0.5% of value O 2 saturation ±0.5% of value O 2 part. press. ±0.5% of value Temperature ±0.1 K Temperature ±0.1 K Temperature 2% at C compensation Air pressure Automatic with built-in pressure sensor ( hpa) compensation Salinity correction 0 or 35.0 solid SAL Automatic from , adjustable via display Display LCD display 60 x 45 mm visible area, simultaneous display of measurement, temperature, special characters Sensor evaluation Depends on calibration results, shown on display Calibration alarm days, adjustable AutoRead For reproducibility better than 0.05 mg/l Calibration OxiCal rapid calibration in OxiCal -SL or OxiCal -D Calibration GLP-conform calibration protocol; protocol last protocol stored in memory 62 Data storage 500 data sets (measurement, temperature, date/time, identity no.); time-controlled storage at intervals 5 s min, non-volatile data storage (even when changing batteries) Data output Via display Via display or interface Interface Self-configuring analog output V corresponding to display, or RS 232 bi-directional interface Operating time 2000 hours with normal 4 x 1.5 V batteries (AA) Continuous operation from mains with AutoSwitchOff after 1 h (except logger operation) supply; 2000 hours with battery operation with AutoSwitchOff after 1 h (except logger operation) Protection type IP 66 and IP 67 to IEC 529 Dimensions 172 x 80 x 37 (H x B x D) Weight Approx. 300 g Certified to CE, TÜV/GS, UL and/or cetlus, CUL Warranty 3 years on the instrument

6 Handheld Oxygen Meters General & Field Oxygen (D.O.) ISE ORP ph Ordering Information Handheld Oxygen Meters Oxi 315i Robust and waterproof battery-operated handheld oxygen meter 2B Oxi 330i Robust and waterproof battery-operated handheld oxygen meter with datalogger 2B Oxi 340i Robust and waterproof battery-operated handheld oxygen meter with datalogger 2B and serial interface Oxi 340i Robust and waterproof handheld oxygen meter with datalogger and serial interface, 2B for battery or mains operation Respiration BOD Multi- Parameter Ordering Information SETs Handheld Oxygen Meters SETs Oxi 315i Handheld oxygen meter, including oxygen sensor, professional case and accessories 2B Oxi 330i Handheld oxygen meter, including oxygen sensor, professional case and accessories 2B Oxi 340i Handheld oxygen meter, including oxygen sensor, professional case and accessories 2B Oxi 340i Handheld oxygen meter with main power supply, including oxygen sensor, professional case and accessories 2B Sample Preparation Colony Counter Conductivity Photometry Oxygen sensors please select one CellOx 325 Galvanic oxygen sensor, 1.5 m cable CellOx Galvanic oxygen sensor, 3 m cable NEW DurOx Robust galvanic oxygen sensor, 3 m cable Turbidity Software, Printers Customer Service SET ordering example Oxi 330i + CellOx sensor 2B Note: Other sensors in SET or instrument versions for 120 VAC/60 Hz are available on request Other lengths of cable are available on request Please refer to page 70 for sensors and page 74 for other accessories 63

7 O 2 General Information about portable oxygen meters can be found on pages DO Meters Portable Oxygen Meters ProfiLine Oxi 197 and ProfiLine Oxi 197-S WTW portable oxygen meters Robust Shockproof Waterproof Portable Reliable Standard oxygen measurement and oxygen measurement at depths down to 100 m The WTW oxygen meters of the ProfiLine Oxi 197 series are both hose-proof (IP 66) and submersible (IP 67). They convince because of their high degree of operator comfort and foolproof operator guidance via the large multifunctional display. They are equipped with a carrying/support handle and carrying strap as standard. The portable oxygen meters are available in 2 versions: ProfiLine Oxi 197: Indestructible oxygen meter. With rechargeable battery and mains operation, measurement storage, GLP-supporting functions, OxiCal rapid calibration, AutoBar automatic air pressure compensation by built-in pressure sensor, automatic temperature compensation by IMT compensation... Additional connection for self-stirring oxygen sensor StirrOx G. Also suitable for oxygen depth measurements down to 100 m with TA 197 Oxi depth armature. ProfiLine Oxi 197-S: As ProfiLine Oxi 197 but with additional analog recorder outputs corresponding to display for oxygen and temperature values. IP 66 Year IP 67 3 Warranty Accessories for oxygen measurement at depths down to 100 m Oxygen depth armature TA 197 Oxi with built-in temperature sensor, up to 100 m cable with waterproof plug (IP 67), pressure-resistant steel armoring with screw-off protective hood, fits into 2 boreholes. 64 Battery-powered stirrer BR 325 for profile and depth measurements.

8 Portable Oxygen Meters & Field Technical Data Model ProfiLine Oxi 197 ProfiLine Oxi 197-S Measuring range/ O 2 concentration mg/l resolution mg/l O 2 saturation % % Temperature C Accuracy O 2 concentration ±0.5% of value (±1 digit) O 2 saturation ±0.5% of value Temperature ±0.1 K Air pressure Automatic with built-in pressure sensor ( hpa) compensation Temperature Automatic with IMT compensation compensation Salinity correction Automatic from , adjustable via display Display LCD display 60 x 35 mm visible area, simultaneous display of measurement, temperature, special characters AutoRead For reproducibility better than 0.05 mg/l Calibration OxiCal rapid calibration in OxiCal -SL Data storage Ring memory for 50 pairs of measurements with data protection Data output Via display or interface Interface Unidirectional RS 232 interface Unidirectional RS 232 interface 2 analog recorder outputs for measurement and temperature output corresponding to display Other connections 2-pole socket for built-in stirrer of oxygen sensor StirrOx G. Operating time Continuous operation from mains supply; 600 hours with rechargeable batteries with AutoSwitchOff after 1 h Protection type IP 66 and IP 67 to IEC 529 Dimensions 230 x 185 x 90 (B x D x H) Weight Approx. 1.5 kg Certified to CE, TÜV/GS, UL, CUL Warranty 3 years on the instrument General ISE ORP ph Oxygen (D.O.) Respiration BOD Multi- Parameter Ordering Information Portable oxygen meters ProfiLine Oxi 197 Robust, waterproof, submersible oxygen meter ProfiLine Oxi 197-S As ProfiLine Oxi 197, but additionally with 2 analog recorder outputs Note: 120 VAC / 60 Hz versions on request Depth armatures for oxygen measurements with ProfiLine Oxi 197 and ProfiLine Oxi 197-S Oxygen depth armatures with built-in temperature sensors, cable (length optional) with waterproof plug (IP 67) pressure-resistant steel armoring and screw-off protective hood, fits into 2 boreholes, including accessory case with spare parts and maintenance materials Cable length Cable length TA 197 Oxi m TA 197 Oxi m TA 197 Oxi m TA 197 Oxi m Accessories for CellOx 325 and TA 197 Oxi-... BR 325 Battery-powered stirrer for profile and depth measurements, only in combination with plastic armoring A 325/K for CellOx 325 or depth armature TA 197 Oxi A 325/K Plastic armoring for oxygen electrode CellOx 325 (cable length up to 20 m) Please refer to page 70 for sensors and page 74 for other accessories Sample Preparation Colony Counter Conductivity Photometry Turbidity Software, Printers Customer Service 65

9 O 2 General Information about laboratory oxygen meters can be found on pages DO Meters Oxygen Meters inolab Oxi Level 2, inolab Oxi Level 3 inolab Level 2 Think innovative Performance-oriented instrument range Simplified operator convenience Mainsindependent Country-specific units ISO-conform documentation Application-oriented displays Can be used as benchtop and wall-mounted models inolab Oxi Level 2: compact and communicative Standard laboratory oxygen meter with large multifunctional display for routine use in the laboratory. Automated functions such as air pressure correction, temperature compensation by the IMT method and OxiCal rapid calibration make work easier. The built-in measurement store, the analog and digital output RS 232 as well as the optional built-in printer (paper width 112 mm) guarantee QA-conform documentation. The StirrOx G can be operated by the inolab Oxi Level 2 for BOD 5 determination according to DIN EN resp. DIN EN with manual start/stop functions. MultiCal automatic calibration AutoRead automatic drift control for stable and reproducible measurements Feed and on/off keys keys for controlling the built-in printer 66 Year IP 43 3 Warranty

10 inolab Level 3 Oxygen Meters Touch innovative & Field General AutoRead automatic drift control for stable and reproducible measurements RUN/ENTER triggers the measuring process ISE ORP ph Oxygen (D.O.) Terminal Level 3 inolab Oxi Level 3 with Terminal Level 3 or PC software: flexible and powerful High-performance oxygen meter with graphics display and digital recorder function for oxygen measurement in the laboratory. Automated functions such as air pressure correction, temperature compensation by the IMT method and OxiCal rapid calibration make work easier. The built-in measurement store, the digital output RS 232 and the optional built-in printer guarantee QA-conform documentation. The StirrOx G can be operated by the inolab Oxi Level 3 for BOD 5 determination according to DIN EN resp. DIN EN with automatic start/stop functions. BOD 5 determination with evaluation program see page 110 Year IP 43 3 Warranty Built-in digital plotter Graphic evaluation possible Connection of bar-code reader or PC keyboard Automatic memory function if bar-code reader is used Selectable instrument language Extended GLP functions Limit input with acoustic alarm Free-of-charge software downloads for inolab pilot or terminal Respiration BOD Multi- Parameter Sample Preparation Colony Counter Conductivity Photometry Turbidity Software, Printers Customer Service 67

11 O 2 Technical Data Model Oxi Level 2 Oxi Level 3 Measuring range/ O 2 conc.: mg/l Resolution mg/l * O 2 saturation: % %* O 2 part. press.: mbar mbar Temperature: C * depends on oxygen sensor and medium Accuracy O 2 conc.: ±0.5% of value (±1 digit) O 2 saturation: ±0.5% of value Temperature: ±0.1 K Temp C automatic via IMT compensation compensation Salinity Automatic from , correction Adjustable via display AutoRead For reproducibility better than 0.05 mg/l or better than 1 mbar po 2 Real-time clock Not affected by power cuts Calibration OxiCal rapid calibration in OxiCal -SL Data memory 200 data sets (measurement, temperature, time/date, ident 2000 data sets (measurement, temperature, time/date, ident no.); time-controlled storage at intervals from 5 s min, no.); time-controlled storage at intervals from 1 s days, data storage period unlimited data storage period unlimited Data output Via display or interface Via display, PC or interface Interface analog Self-configuring as analog output 0-2 V or bidirectional RS 232 Other For StirrOx G (only power For StirrOx G with automatic connections supply) and start/stop via AutoRead start and stop key on StirrOx via key on StirrOx Operating time/ Continuous from mains supply With terminal: universal plug-in power supply Power supply 230 VAC or 120 VAC Without terminal: via PC interface Protection type IEC 529 / IP 43 Dimensions 300 x 250 x 70 (B x D x H in mm) Weight Approx. 1.6 kg Approx. 1.5 kg Certified to CE, TÜV/GS, UL, CUL Warranty 3 years on the instrument 68

12 Oxygen Meters General & Field Ordering Information inolab Oxi inolab Oxi oxygen measuring instruments inolab Oxi Level 2 Compact precision oxygen meter with serial interface 1B inolab Oxi Level 2 Compact precision oxygen meter, additionally with 1B built-in printer for GLP-conform documentation inolab Oxi Level 3 Flexible and powerful the intelligent oxygen measuring 1B place consisting of multifunction box and universal terminal, with PC software/connection cable inolab Oxi Level 3 Intelligent oxygen measuring place with additional built-in printer 1B inolab Oxi Level 3 The integrated oxygen measuring place with PC software/connection cable; without printer/terminal 1B ISE ORP ph Oxygen (D.O.) Ordering Information for inolab Oxi SETs ready to go inolab Oxi SETs inolab Oxi Level 2 Including oxygen sensor, passive multifunction box and accessories 1B inolab Oxi Level 2 With built-in printer, including oxygen sensor, passive multifunction box and accessories 1B inolab Oxi Level 3 Including terminal, oxygen sensor and accessories 1B inolab Oxi Level 3 With built-in printer, including terminal, oxygen sensor and accessories 1B inolab Oxi Level 3 Without printer/terminal, with PC software/connection cable; sensor and accessories 1B Oxygen sensors please select one CellOx 325 Galvanic oxygen sensor, 1.5 m cable CellOx Galvanic oxygen sensor, 3 m cable StirrOx G Self-stirring oxygen sensor SET ordering example inolab Oxi Level 2 with printer + StirrOx G 1B Note: Other sensors in SET and instrument versions for 120 VAC/60Hz are available on request Please refer to page 70 for sensors and page 74 for other accessories Respiration BOD Multi- Parameter Sample Preparation Colony Counter Conductivity Photometry Customer Service Software, Printers Turbidity 69

13 O 2 Software and printers Information is given on pages DO Meters Oxygen Meter Accessories Perfect results with the right accessories page Oxygen sensors and sensor accessories 71 Calibration and storage vessels 74 Additional accessories 75 Selection Guide OXi 92 Oxi 96 inolab Oxi Level 2 and 3 inolab Multi Level 1 and 3 inolab ph/oxi Level 1 and 3 Oxi 320/323/325 Oxi 330/340 Oxi 315i/330i/340i Oxi 530/Oxi 2000 Sensors DurOx CellOx StirrOx G 2 TA EO 90 1 EO 96 1 EO 196-1,5 1 EOT EOT TriOxmatic EO TriOxmatic Electrolyte/cleaning solution: ELY/N; RL-Ag/Oxi 2 Electrolyte/cleaning solution: ELY/G; RL-G Oxi 537 Oxi 538 Oxi 539 Oxi 3000 MultiLab P4/P5 MultiLine P4 Multi 340i MultiLine P3 ph/oxi ph/oxi 340i Oxi 196 Oxi 197 Oxi

14 Oxygen Meter Accessories & Field Oxygen Sensors and Accessories General Oxygen (D.O.) Respiration BOD Multi- Parameter Sample Preparation Colony Counter ISE ORP ph Ordering Information StirrOx G StirrOx G for inolab Oxi Level 2, inolab Oxi Level 3, and Profiline 197 Self-stirring oxygen sensor - simultaneous stirring and measurement Single-handed operation for rapid series measurements Constant approach flow for high reproducibility Immediately ready for measuring - no polarization period required Extremely low self-consumption of oxygen - only µg h -1 (mg/l) -1 Zero-current free - no zero point calibration necessary With calibration and storage vessel OxiCal -ST as standard Long working life - 6 months with one electrolyte filling IMT temperature compensation with 2 built-in temperature sensors Membrane leakage monitoring - damaged membranes are indicated The sensor prices include the corresponding accessory case with spare parts and maintenance supplies StirrOx G Self-stirring oxygen sensor for oxygen determination in Karlsruhe bottles and Winkler bottles, with OxiCal -ST calibration and storage vessel Sensor accessories for StirrOx G Conductivity Photometry Turbidity ZBK-ST Accessory case with spare parts and maintenance supplies RL/G Cleaning solution, 1 bottle of 50 ml ELY/G Electrolyte, 1 bottle of 50 ml Sta-ST Stand base for OxiCal -ST calibration and storage vessel WP3-ST 3 exchange membrane heads for StirrOx G Customer Service Software, Printers 71

15 O 2 CellOx 325 Covered membrane galvanic oxygen sensor Immediately ready for measuring - no polarization period required IMT temperature compensation with 2 built-in temperature sensors Long working life - 6 months with one electrolyte filling Zero-current free High signal resolution Rapid response Waterproof sensor (IP 68 2 bar) With 1.5 m cable and waterproof plug (IP 67) as standard With calibration and storage vessel OxiCal -SL as standard Attachment stirrer RZ 300 Ordering Information CellOx 325 The sensor prices include the corresponding accessory case with spare parts and maintenance supplies CellOx 325 Galvanic oxygen sensor with OxiCal -SL calibration storage vessel, waterproof plug, cable length 1.5 m CellOx Ditto, but cable length 3 m CellOx Ditto, but cable length 6 m CellOx Ditto, but cable length 10 m CellOx Ditto, but cable length 15 m CellOx Ditto, but cable length 20 m Sensor accessories for CellOx ZBK 325 Accessory case with spare parts and maintenance supplies RL/G Cleaning solution, 1 bottle of 50 ml ELY/G Electrolyte, 1 bottle of 50 ml WP 90/3 3 exchange membrane heads TH 340 Telescopic extension, m with sensor holder A 325/K Plastic armoring for CellOx (up to 20 m cable length) Attachment stirrers for CellOx RZ 300 Attachment stirrer for constant approach flow (in combination with a magnetic stirrer, e.g. Oxi-Stirrer 300) BR 325 Battery-powered stirrer for profile and depth measurements, only in combination with plastic armoring A 325/K, including batteries

16 Oxygen Meter Accessories & Field General DurOx 325 Membrane-covered galvanic oxygen sensor Immediately ready for use no polarization time IMT compensation with 2 built-in temperature sensors Working life approx. 6 months with 1 electrolyte filling Low approach flow Zero current free Waterproof sensor (IP 68 2 bar) With 3 m cable and waterproof plug (IP 67) as standard With calibration and storage vessel OxiCal -D as standard With protective hood SK-D as standard ISE ORP ph Oxygen (D.O.) Protective hood SK-D for DurOx 325 Respiration BOD Multi- Parameter Ordering Information DurOx 325 Note: can only be used with the new 3xxi handheld meter series! DurOx Galvanic oxygen sensor with OxiCal -D calibration vessel, accessory box ZBK-D, water proof plug, cable length 3 m DurOx As above, but cable length 6 m Sensor accessories for DurOx SK-D Protective hood for DurOx sensors OxiCal -D Calibration vessel for DurOx sensors RL/G Cleaning solution, bottle of 50 ml Ely/G Electrolyte, bottle of 50 ml ZBK-D Accessory box with spare parts and maintenance supplies for DurOx sensors Sample Preparation Colony Counter Conductivity Photometry Turbidity Software, Printers Customer Service 73

17 O 2 Ordering Information for sensor accessories Individual accessories for all oxygen sensors WP 90/3 3 exchange membrane heads WP3-ST 3 exchange membrane heads for StirrOx G SF 300 Cathode cleaner (abrasive foil) KF 12 Karlsruhe bottle including 60 mm ground stopper, suitable for BOD determination, minimum order 10 bottles FR 19 Fixing ring, recommended for measurements in Karlsruhe bottles TS 19 Funnel set for BOD determination in NS 19 Winkler bottles FD 19/KA Fixing cover for Karlsruhe bottle KF Calibration and storage vessels Calibration and storage vessels Various calibration and storage vessels are available for oxygen meters Calibration and storage vessel OxiCal -SL Precision calibration and storage vessel OxiCal -Auto Calibration and storage vessel OxiCal -D Ordering Information for calibration vessels Model OxiCal -SL Standard calibration and storage vessel for precision calibration in air saturated with water vapor OxiCal -ST Calibration and storage vessel for StirrOx G for precision calibration in air saturated with water vapor OxiCal -P Precision calibration and storage vessel for precision calibration in air at constant water vapor pressure and temperature (for oxygen meters with no connection for OxiCal -Auto) For DurOx 325 (3xxi series handheld oxygen meters only) OxiCal -D Calibration vessel for DurOx sensors For Oxi 3000 OxiCal -Auto Precision calibration and storage vessel for automatic calibration and continuous calibration monitoring in air at constant water vapor pressure and temperature, additional temperature measurement in calibration medium and dew point monitoring

18 Protective armoring Ordering Information for safe on-site use SM 325 Shock-absorbing, rubber protective armoring TG/Oxi-LF Sleeve set, suitable for protective armoring SM FM 325/Oxi-LF Field armoring, specially for rough conditions Oxygen Meter Accessories 1 SM 325 Shock-absorbing, rubber protective armoring with support handle and sensor cable clamping device 2 TG/Oxi-LF Sleeve set, suitable for SM 325 protective armoring, consisting of electrode sleeve, holding device and additional carrying strap for field use. Can also be used for storing the sensor. 3 FM 325/Oxi-LF Field armoring, specially designed for rough use on-site and in industry, extremely robust and shock-resistant thanks to protective armoring with integrated electrode sleeve, carrying handle and additional carrying strap with holding device, sensor cable clamping device and folding support for laboratory measurements & Field General ISE ORP ph Oxygen (D.O.) Recommended accessories Stand STH 650 Benchtop stand with flexible electrode holder, suitable for oxygen sensors Magnetic stirrer Oxi-Stirrer 300 The magnetic stirrer ensures uniform stirring of the sample to provide a constant approach flow for the oxygen sensor. In this way a quicker sample exchange at the sensor membrane is achieved Flow-thru vessel D 201 for pressureless measurements, flow rate ml/min Ordering Information Stand and electrode holder STH 650 Benchtop stand with flexible electrode holder for ph electrodes, ion sensitive electrodes, reference electrodes, temperature sensors, oxygen sensors and TetraCon 325 conductivity cells stirrer Oxi-Stirrer 300 Magnetic stirrer with constant fixed speed in waterproof stainless steel housing, together with RZ 300 ensures uniform approach flow to the oxygen sensor Flow-thru vessel D 201 Flow-thru vessel for laboratory and other electrodes Sample bottles for oxygen measurements KF 12 Karlsruhe bottle including 60 mm ground stopper, suitable for BOD determination, minimum order 10 bottles Respiration BOD Multi- Parameter Sample Preparation Colony Counter Conductivity Photometry Turbidity Software, Printers Customer Service 75