Englisch. Operating Manual. Dissolved Oxygen Measuring transducer OXY 3610 MP .3X.6C Keep for later use.

Transcription

1 .3X.6C -07 Englisch Operating Manual Dissolved Oxygen Measuring transducer OXY 3610 MP Companies / Brands of the GHM Keep for later use.

2 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 2 von 14 Contents 1 SAFETY GENERAL NOTE INTENDED USE QUALIFIED STAFF SAFETY SIGNS AND SYMBOLS REASONABLY FORESEEABLE MISUSE SUITABILITY During configuration During normal operation PRODUCT DESCRIPTION SCOPE OF SUPPLY TYPE PLATE INSTALLATION AND COMMISSIONING GENERAL INSTALLATION INSTRUCTIONS ASSIGNMENT OF ELBOW-TYPE PLUG DISPLAY FUNCTIONS CALIBRATION OF THE OXYGEN MEASURING TRANSDUCER CONFIGURATION OF THE DEVICE CONFIGURATION PROCEDURE OFFSET OFFS Average ambient absolute pressure PABS Display damping FiLT Save the last parameter values ERROR AND SYSTEM MESSAGES OFFSET SETTINGS FOR DIFFERENT APPLICATIONS AMBIENT PRESSURE AS A FUNCTION OF THE ALTITUDE ABOVE SEA LEVEL OXYGEN ELECTRODE CONSTRUCTION OF THE SENSOR GWO General Design WHEN IS ELECTRODE MAINTENANCE REQUIRED ELECTRODE MAINTENANCE HOW TO OPERATE DECOMMISSIONING, RESHIPMENT AND DISPOSAL DECOMMISSIONING RESHIPMENT AND DISPOSAL SPECIFICATION... 13

3 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 3 von 14 1 Safety 1.1 General note Read this document carefully and get used to the operation of the device before you use it. Keep this document within easy reach near the device for consulting in case of doubt. Mounting, start-up, operating, maintenance and removing from operation must be done by qualified, specially trained staff that have carefully read and understood this manual before starting any work. The manufacturer will assume no liability or warranty in case of usage for other purpose than the intended one, ignoring this manual, operating by unqualified staff as well as unauthorized modifications to the device. The manufacturer is not liable for any costs or damages incurred at the user or third parties because of the usage or application of this device, in particular in case of improper use of the device, misuse or malfunction of the connection or of the device. Bestimmungsgemäße Verwendung 1.2 Intended use Dissolved Oxygen-Measuring transducer converts an air oxygen-value in a 4-20 ma signal. 1.3 Qualified staff For operating, running, maintaining and commissioning the device, the staffs needs to have an adequate level of knowledge of both, the measuring and the meaning of measured values. This manual can be a valuable contribution. All instructions have to be well-understood and complied with. To be sure that there is no risk arising due to misinterpretation of measured values, the operator must have further knowledge in case of doubt - the user is liable for any harm/damage resulting from misinterpretation due to insufficient knowledge. The manufacturer will assume no liability or warranty in case of usage for other purpose than the intended one, ignoring this manual, operating by unqualified staff as well as unauthorized modifications to the device. 1.4 Safety signs and symbols Warning notices are marked in this manual as shown below: This symbol warns of imminent danger, death, serious injuries and significant damage to property at non-observance. This symbol warns of danger to living tissue and many materials, that can be damaged or destroy by exposure to that chemical! Achtung! Symbol warnt vor möglichen Gefahren oder schädlichen Situationen, die bei Nichtbeachtung Schäden am Gerät bzw. an der Umwelt hervorrufen. This symbol points out processes which can indirectly influence operation or provoke unforeseen reactions at non-observance. This symbol refers of using a eye protection, which protects the eyes from strong light, UV radiation, laser, chemicals, dust, splitter or weather conditions. This symbol refers of using protective gloves, which protects for mechanical-, thermal-, chemical-, biological- or electrical hazards.

4 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 4 von Reasonably foreseeable misuse This device must not be used at potentially explosive areas! Do not use these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury or material damage. Failure to comply with these instructions could result in death or serious injury and material damage. This device must not be used at a patient for diagnostic or other medical purpose 1.6 Suitability This device has been designed and tested in accordance with the safety regulations for electronic devices. However, its trouble-free operation and reliability cannot be guaranteed unless the standard safety measures and special safety advises given in this manual will be adhered to when using the device During configuration Caution, acid! The electrode contains KOH KOH can cause severe chemical burns! If there was contact: To skin: Flush contacted area with large amounts of water for several minutes. To clothing: remove contaminated clothing. To eyes: Flush with large amounts of water for at least 15 minutes, obtain medical treatment. After swallowing: Give large volumes of water. DO NOT induce vomiting! Obtain medical treatment. General instructions and safety regulations for electric, light and heavy current plants, including domestic safety regulations (e.g. VDE), have to be observed. Trouble-free operation and reliability of the device can only be guaranteed if the device is not subjected to any other climatic conditions than those stated under "Specification". If the device is transported from a cold to a warm environment condensation may cause in a failure of the function. In such a case make sure the device temperature has adjusted to the ambient temperature before trying a new start-up. This device only serves as supervision by the monitoring of essential or other for the customer important systems. It must not be used instead of compulsory approval monitoring devices and it is not designed for that purpose. If this device is used for the monitoring of such systems on its own, the manufacturer will not assume liability for damages whatsoever.

5 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 5 von During normal operation 2 Product description Do not use this product as safety- or emergency- stop devices or in any other application where failure of the product could result in personal injury or material damage. Failure to comply with these instructions could result in death or serious injury and material damage. Whenever there may be a risk whatsoever involved in running it, the device has to be switched off immediately and to be marked accordingly to avoid re-starting. Operator safety may be a risk if: -there is visible damage to the device -the device is not working as specified -the device has been stored under unsuitable conditions for a longer time In case of doubt, please return device to manufacturer for repair or maintenance. With costs. The conceptual design, particularly when connecting with other devices has to be done thoroughly. Internal connections of other devices e.g. from ground with protective earth may lead to prohibited voltage levels that could disturb the function, damage or even destruct the device or any connected equipment. Never run the device with a damaged or faulty power supply. 2.1 Scope of supply 1 x Dissolved Oxygen-Measuring transducer 2 x GWO 3600-L04_MU 3 x KOH x Mounting and operating manual OXY 3610 MP Dissolved Oxygen-Measuring transducer GWO 3600-L04_MU 2.2 Fehler! Verweisquelle konnte nicht gefunden werden. Production date code Options Measuring range Output signal Power supply Power supply Article number CE-mark see below: Disposal (s. Chapter 12.2) Please refer to manual. Manufacturer address CE mark: With the CE-Sign declares the manufacturer, that the Product is conform with the prevailing requirements of EU.

6 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 6 von 14 3 Installation and Commissioning 3.1 General installation instructions Loosen screws (A). Remove cover (B) Wall mounting screws (C) are not included. The mounting-hole-diameter is 4.2 mm. See pattern drilling above (50 x 70 mm). Release the screw (a). Unplug the connector. Release the connection sealing, cable fitting (b), shim (c) and sealing-ring (d). Pull out the connection socket (f). Thread cable through parts (b), (c), (d) and into connector-housing (e). To mount the connection cable 2-, 3-, or 4- wire depending on type of device see chapter 4 Assignment of elbow-type plug, the angle plug screw has to be loosened. Reattach part (f) in (e). Reattach parts (d) and (c) and tighten (b). Plug in the connector with connection sealing and tighten (a). Connect the ph electrode at the BNC socket (I). Connect the sensor at the 5 pole diode Pattern drilling for wall mounting 50 x 70 mm

7 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 7 von 14 4 Assignment of elbow-type plug Description of the contacts. 1 1= supply voltage +Uv 2= GND / signal 2-wire connection (4-20mA) 2 Uv A 3- wire connection (voltage) 3 1 V Uv 1 = signal + 3 = supply voltage +Uv (4) = supply voltage -Uv signal - 4- wire connection (voltage) V Uv 1= signal + 2= signal - 3= supply voltage +Uv (4)= supply voltage -Uv 5 Display functions During normal operation the oxygen content is displayed in the unit [mg/l]. By pressing the Key 2 (down) the temperature at the electrode can be shown, pressing key 3 (up) shows the state of the electrode in [%]. The state is calculated and stored during the calibration (see below). The displays of the state and the temperature of the electrode are marked by small arrows at the upper end of the display. After 5 seconds the transducer display switches automatically back to the oxygen value. display dissolved oxygen display electrode temperature display state of electrode

8 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 8 von 14 6 Calibration of the oxygen measuring transducer Expose electrode to the ambient air, wait until the temperature has adapted to the ambient conditions. Parameter button 1 < 5sec Description CAL After approx. 10 sec s the transducer is calibrated or a referring error message will be shown (see below): Display Meaning Possible fault causes Remedy CFE.1 CFE.3 Temperature out of allowed range Electrode error Wrong signal: to low Temperature has to be within 5 to 40 C Temperature sensing defective Membrane dried out/electrode used up Calibrate again at correct temperature Check cable & connection, replace electrode if necessary Electrode maintenance / replace CFE.4 Wrong signal: to high Calibration surrounding not valid Check Calibration surrounding CFE.6 Instable signal Calibration surrounding not valid Check Calibration surrounding Oxygen electrodes are sensitive components. Please read the referring manual prior to use. During calibration the rating of the electrode is evaluated: 100% means perfect state, 40 % means e.g. sensor element has a weak output signal and needs to be replaced soon (p.r.t. sensor manual). The electrode rating can be displayed with key 3 (down). 7 Configuration of the device For the correct function of the device in its application, it has to be configured to meaningful settings. For doing this the cover has to be removed. Then the jumper J1 right above of key 2 has to be set. Select the value with button 2 (down) and 3 (up). To save the value confirm with button 1 (set). Concurrent the new parameter value will be invoked. The device will start again after saving the last parameter value. 7.1 Configuration procedure OFFSET OFFS Parameter button 1 < 5sec Value button 2 / 3 Description OFFS The offset is entered in mg/l. It can be used to compensate different effects, e.g. special approaching flow conditions of the application. Please refer to Appendix A.

9 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 9 von Average ambient absolute pressure PABS Parameter button 1 Value button 2 / 3 Description PABS Necessary for a correct evaluation of the state of the electrode. If the application works for example at an altitude of 350 m above sea level, 980mbar is a correct setting. Please refer to chapter 10 Ambient pressure as a function of the altitude above sea level Display damping FiLT Parameter button 1 Value button 2 / 3 Description FiLT By this factor the speed of the display can be adopted to the application. This is intended to reduce instabilities in the measured value as they appear in some specialised applications Save the last parameter values Enter the desired value by using keys 2 (down) and 3 (up). Input range: (0: fast display, 15: slow display. Setting ex works: 10. Parameter button 1 Value button 2 / 3 Description The values will be saved. The device will start again (The display is shown 8888). Bring back the jumper j1 to the parking position after configuration (one contact connected, the second contact on air)! Then the device can be calibrated by key 1 and the configuration data is protected. 8 Error and System Messages Display Description Possible fault cause Remedy FE 1 measuring range exceeded Calibration is wrong Recalibrate the transducer. FE 2 Measuring values below measuring range Wrong signal Check the connections, cable and electrode. FE 7 System fault Error in device Disconnect from supply and reconnect. If error remains: return to manufacturer FE 9 Input signal is not valid Sensor not connected or cable defective Temperature out of range Check electrode, cable and connections Check temperature Segment test The transducer performs a display test for 2 seconds after power up. After that it will change to the display of the measuring. Sensor not connected Check sensor, cable and connections Input signal is not valid Permissible input range is exceeded Check if not a wrong sensor is connected. Replace sensor.

10 Offset [mg/l] T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 10 von 14 9 Offset settings for different applications The Offset setting is supposed to correct measuring deviations caused by different flow speed (v) around the electrode: -1E-15 For activated sludge basins and at flow speeds > 1m/s an offset setting of ca 0.6 should be entered. Fü ein -0,2-0,4-0,6 0,3 0,5 0,7 0,9 1,1 1,3 1,5 1,7 1,9 v [m/s] In between 0.3 and 1m/s the offset can be read from the diagram. 0.3m/s correspond to the speed that is achieved by stirring by hand. Flow speeds below 0.3 m/s are not sufficient to get a correct and reproducible measuring. Zw ge die Str ge 10 Ambient pressure as a function of the altitude above sea level Altitude über NN Pabs [mbar) Altitude über NN Pabs [mbar) [m] [m] Values between are to be interpolated. 11 Oxygen electrode 11.1 Construction of the sensor GWO General The oxygen electrode is an active electrode consisting of a silver cathode and a lead anode using potassium hydroxide (KOH) as an electrolyte. In case of oxygen being present it will be reduced at the silver cathode and the electrode produces electric current. In case of no oxygen being present not current will be produced. Both the silver cathode and the lead anode will be used up during oxygen measuring. The electrode ages. We, therefore, recommend regular maintenance of the electrode at monthly intervals (see 11.3 Electrode maintenance). Attention when working with electrolyte! The electrolyte is caustic! (strong base, KOH) Avoid contact to skin, protect Your eyes. Protective equipment is necessary! Irritates the skin and the mucous membranes, caustic. When contact with the eyes immediately clean with water at least for 15 minutes. Consult a doctor! The membrane is delicate if damaged, caustic electrolyte gets lost and the sensor shows wrong signal. Make it a rule to always store the electrode in a humid environment. - in the storage flask filled with water - in another container filled with water If electrode has not been used for some time, clean membrane with soft cloth and remove deposits, if any (algae, bacteria etc.).

11 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 11 von Design Replenishing hole Electrode shaf Diaphragm Protective flask The electrode housing is made of ABS. With the exception of the electrode shaft all parts need to be maintained regularly and be replaced if necessary. o Protective flask: The protective flask is used to moisten the membrane. This prolongs service life of the electrode. The protective flask contains water. Attention! Use water only; never use potassium chloride (KCI); this is only required for storage of ph-electrode. o Diaphragm head: The membrane head is covered with a Teflon membrane. It will be filled with KOH electrolyte and screwed onto the electrode shaft (no air bubbles). Damages in the membrane, large air bubbles or air bubble rings in the membrane head will result in erroneous measurements. This may also be the reason for errors in the calibration. The membrane head is a spare part and can be ordered individually. o Filling hole: If the electrode is used at high temperatures or if it has been stored without its protective flask for a longer period of time, some electrolyte will be lost due to evaporation. Please refer to Refilling description below When is electrode maintenance required Attention when working with electrolyte! The electrolyte is caustic! (strong base, KOH) Avoid contact with skin and eyes. Protective equipment is necessary! Irritates skin and mucous membranes, caustic. In the case of contact with the eyes, immediately clean with clear water about 15 minutes Eye protective is necessary! Protective gloves are necesarry when filling the electrode! Do not touch the electrolyte with your bare hands. When contact with the skin immediately clean with water at least for 15 minutes.

12 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 12 von 14 Unless it is used the electrode is to be stored in the protective flask filled with water or directly in a vessel filled with dechlorinated water. Residues of bacteria, fungi or algae must be removed prior to measuring using a soft paper towel. If a calibration can no longer be carried out or if the membrane is damaged the electrode needs maintenance. In the course of the time air bubbles may accumulated underneath the membrane. As long as they are small and do not affect the silver cathode the measurements will not be influenced. If, however, there is a large ring of air bubbles underneath the membrane covering the silver cathode, the electrode needs maintenance Electrode maintenance Prepare liquid absorbing paper towel. Remove membrane head and wipe off electrolyte solution with paper cloth. Do not touch electrolyte. If your skin has come into contact with electrolyte, rinse thoroughly with clear water. Clean silver cathode using sand paper (grain size 240). Do not shine silver cathode as its surface needs to be rough so that the electrolyte can be dispersed evenly. Remove any dust from grinding. If necessary, take out replenishing screw and top up with electrolyte till it is spilling out (e.g. using a disposable syringe). Put back replenishing screw. (Normally not necessary). Put new membrane head on the paper towel and fill up with electrolyte making sure there are no air bubbles. Put electrode into head vertically from above till the thread catches. Then take up head with paper towel and screw onto electrode from underneath. Electrolyte will be displaced from the membrane head, flowing over. Mop up excess electrolyte using paper towel. Turn electrode around and check for air bubbles. If there are no air bubbles or only tiny ones the maintenance has been completed. If there are large air bubbles the process has to be repeated. If O-ring has been damaged, it has to be replaced. Prior to its being calibrated again the electrode needs to be lying on a table for at least 3 hours. If electrode can no longer be calibrated although it has been properly maintained, the electrode needs to be returned to manufacturer for check-up and may have to be replaced How to Operate Store the oxygen electrode always in water, either in the protective flask or directly in a vessel filled with dechlorinated water. For storage in the protective flask first push the cap on the electrode second the o-ring and thereafter put the electrode in the flask and screw the cap down the flask. If the diaphragm has dried up the electrode must be soaked in water for approx. 2 h prior to measuring start-up. Then a calibration can be carried out without any problems. The electrode is only suitable for the devices OXY3610MP. Unsuitable devices may lead to the destruction of the measuring device and the oxygen electrode! For measuring remove the protective flask of the electrode. The electrode measurement is sensitive against shocks! By stirring of the electrode in the measured liquid be careful that the electrode does not hit the container. A vibration of the electrode has an effect to the measured value.

13 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 13 von Decommissioning, Reshipment and disposal 12.1 Decommissioning Always disconnect the device before from its supply before decommission e.g. at fuse. Valid general safety requirements shall be observed. Please also make sure that connected Loads are disconnected also and are in a safe state Reshipment and disposal Alle Geräte, die an den Hersteller zurückgeliefert werden, müssen frei von Gefahrstoffen sein. Gefahrstoffe am Gehäuse können Personen oder die Umwelt gefährden. Verwenden Sie zur Rücksendung des Geräts, insbesondere wenn es sich um ein noch funktionierendes Gerät handelt, eine geeignete Transportverpackung. Legen Sie dem Gerät das ausgefüllte Rücksendeformular der GHM-Homepage unter bei. Das Gerät darf nicht über die Restmülltonne entsorgt werden. Senden sie das Gerät an uns zurück (ausreichend frankiert, siehe auch Hinweise oben). Wir entsorgen das Gerät sachgerecht und umweltschonend. 13 Specification Measuring range mg/l dissolved oxygen Output signal See 2.2 Fehler! Verweisquelle konnte nicht gefunden werden. Accuracy: (at nominal temperature) Approx. 2 years at nominal condition Display ±1.5% of measured value ±0.2 mg/l Output signal ±0.2 % FS Connection 4-20 ma (Zweileiter) Spannung (Dreileiter bzw. Vierleiter) Add. output signal ±0.2 % FS Auxiliary energy: (supply voltage) Uv = V DC (4-20mA) Uv = V DC (0-10V) or see 2.2 Fehler! Verweisquelle konnte nicht gefunden werden. Reverse voltage protection 50V permanent Perm. impedance (at 4-20mA) RA(Ohm) < (Uv - 12V) / 0.02A ) Example: for Uv = 18V RA < (18V - 12V) / 0.02A => RA < 300 Ohm Permissible load (at 0-...V) R L (Ohm) > 3000 Ohm Electrode Special oxygen electrode GWO3600MU (in scope of supply!) Electrode type active diaphragm type, with integrated NTC resistor Response time 95% in 10 sec., depending on temperature Operation life 3 years or more, depending on proper maintenance Operating pressure max. 3 bar Mounting diameter Ø 12,0 ±0,2 mm (also suitable for ½" glanding) Length approx. 220 mm (incl. anti-buckling glanding), Mounting length: approx. 110 mm Elektrodenanschluss 5 polige verschraubbare Diodenbuchse Temperature compensation automatic, C Electrode Special oxygen electrode GWO3600MU (in scope of supply!) Electrode type active diaphragm type, with integrated NTC resistor Response time 95% in 10 sec., depending on temperature Operation life 3 years or more, depending on proper maintenance Operating pressure max. 3 bar Mounting diameter Ø 12,0 ±0,2 mm (also suitable for ½" glanding) Length approx. 220 mm (incl. anti-buckling glanding), Mounting length: approx. 110 mm

14 T02.0.3X.6C-07 Mounting and operating manual OXY 3610 MP Page 14 von 14 Storage temperature Housing Dimensions Mounting Mounting distance Electric connection Directives / standards C (electrode C) ABS (IP65 - with the exception of electrode and temperature probe connection sockets) 82 x 80 x 55 mm (without elbow-type plug and sensor sockets) With fixing holes for wall mounting (in housing - accessible after cover has been removed). 50 x 70mm, max. shaft diameter of mounting screws is 4 mm Elbow-type plug conforming to DIN (IP65), Max. wired cross-section 1.5 mm², cable diameter 4.5 to 7 mm. The device confirm to following European directives: 2014/30/EU EMC directive 2011/65/EU RoHS Applied harmonized standards EN : 2013 Emission level: Class B EMI immunity according to table 1 Additional error: <1% GHM GROUP Greisinger GHM Messtechnik GmbH Hans-Sachs-Str Regenstauf GERMANY Phone Fax info@greisinger.de