PureAire TX-KE Instruction Manual Download Page 26 | Manualshive

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PureAire Monitoring Systems, Inc.

2/22/2000

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Summary of Contents for TX-KE

Page 1: ...c 2 22 2000 0 Models TX KE and TX KP Toxic Gas Transmitters Instruction Manual PureAire Monitoring Systems Inc 557 Capital Dr Lake Zurich IL 60047 Phone 847 726 6000 Fax 847 726 6051 Toll Free 888 788 8050 www pureairemonitoring com ...

Page 2: ... 5 2 3 Electrical Requirements 5 3 Installation 6 3 1 Wiring 6 3 2 Sensor Installation 9 4 Normal Operation 11 4 1 Concentration Display and Power Indicator Lamp 11 4 2 Routine Maintenance Schedule 11 4 3 Loss of Power Indicator 12 5 Maintenance Calibration 13 5 1 Sensor Cell Removal and Installation 13 5 2 Calibration 14 5 3 Electrolyte Replenishment 18 5 4 Sensor Calibration Kits 23 ...

Page 3: ...ion 1 Group B C and D hazardous areas when used with a safety barrier installed outside the hazardous area Standard features include Intrinsically safe Digital or analog concentration display Rapid response One man non intrusive remote calibration Ideal for absorptive gases Plug in diffusion type sensor cell 1 1 2 Component Identification CN1 CN3 1 2 3 4 C MA Common MA TX KE Bionics Instrument Co ...

Page 4: ...nnection Terminal Block The sensor connection is made at the factory on this terminal block 7 Sensor Cover This cover protects the gas sensor It threads onto the explosion proof housing 8 Gas Sensor A plug in electrochemical sensor designed to detect a specific gas It outputs an electrical signal proportional to the concentration of the target gas which is translated by the instrument s electronic...

Page 5: ... or counterclockwise rotation increases the value a counterclockwise or clockwise rotation decreases the value 2 Cable Inlet This is a inch NPT opening in the transmitter housing for connecting the 4 20 mA output and 24 VDC power cable WARNING This connection must be made using an explosion proof cable gland or connector to seal the inlet if the TX KP is being installed in a hazardous area 3 Cable...

Page 6: ...change without notice 2 1 Performance Specifications Sensor Type Diffusion type electrochemical sensors TX KE Type DP and Type HP sensors TX KP Type MP KP and TP sensors Accuracy 5 full scale Operating Temperature 20 to 50 C 4 to 122 F 2 2 Signal Outputs Local Readout Analog or digital display Analog Output 4 20 mA 2 3 Electrical Requirements Power 24 VDC ...

Page 7: ...ich are marked with arrows 3 Insert the three wire 4 20 mA 24 VDC power transmission cable through the cable inlet WARNING An explosion proof cable gland or connector must be used to seal the transmission cable inlet 4 Connect the 4 20 mA 24 VDC power transmission cable to the terminal block 5 Replace the display unit 6 Replace the transmitter cover 3 1 2 Model TX KE Intrinsically Safe CAUTION If ...

Page 8: ...2 4 3 GND LOAD CN3 TX KE Transmission Cable Wiring Hazardous Areas In the event that the TX KE is installed in a non hazardous area it may be wired as follows TX KE Bionics Instrument Co Ltd GASDETECTOR CN1 CN3 1 2 3 4 LOAD GND DC 24V Power Supply C MA White Shield Shield PC 1280RU Transmission Cable Inlet NPT 3 4 Transmission Cable 3 2 1 Shield Black White Black TX KE Transmission Cable Wiring No...

Page 9: ... and shield S to terminal 3 IMPORTANT Do not switch the polarity of the 24 VDC power line The white 24 VDC line must connect to terminal 1 and the black 0 VDC power line must connect to terminal 2 TX KP Bionics Instrument Co Ltd GAS DETECTOR CN1 CN3 1 2 3 4 LOAD GND DC 24V Power Supply C MA Shield Shield PC 1280RU Transmission Cable Inlet NPT 3 4 Transmission Cable 3 2 1 Shield White Black White B...

Page 10: ...Plug the sensor cell into the bottom of the transmitter 3 Replace the sensor cover ZERO SPAN ZERO SPAN ZERO SPAN ZERO SPAN NOTE The internal wiring to the sensor cell terminal connector on the transmitter printed circuit board is terminated at the factory It is not necessary to make internal wiring terminations If necessary the terminal connector may be removed from the printed circuit board to ma...

Page 11: ...r Location 3 electrode sensor Black White Red Open Terminal 1 Terminal 2 Terminal 3 Terminal 4 2 electrode sensor Open White Black Shield Terminal 1 Terminal 2 Terminal 3 Terminal 4 1 2 3 4 SENSOR CABLE white black shield 2 Electrode Sensor Wiring 3 Electrode Sensor Wiring ...

Page 12: ...ill get brighter as the measured gas concentration increases 4 2 Routine Maintenance Schedule Continuous gas detection systems depended upon to measure and detect hazardous gas leaks require periodic maintenance to ensure proper operation The frequency with which this routine maintenance is required depends on the environment since temperature humidity gas concentrations and dust all affect system...

Page 13: ...el TX KP uses a disposable sensor cell The membrane should be checked occasionally for dirt and oil substances between replacement intervals and replaced if dirty soiled by oil or damaged Sensor Calibration Every 6 months Calibration should be performed whenever the electrolyte or membrane is replaced Sensor Replacement Every 2 years Model TX KP only Model TX KE uses a renewable sensor Estimated s...

Page 14: ...rs use a plug in sensor cell which is extremely simple to remove and install 5 1 1 Sensor Cell Removal 1 Remove the sensor cover 2 Unplug the sensor cell by pulling straight down Take care not to twist the sensor cell TX KE Bionic s Instrument Co Ltd GAS DETECTOR TX KE Bionic s Instrument Co Ltd GAS DETECTOR Model TX KE TX KP Bionics InstrumentCo Ltd GAS DETECTOR TX KP Bionics Instrument Co Ltd GA...

Page 15: ...calibration with the appropriate standard gas PureAire Calibration Kits optional are recommended for calibration purposes see Section 5 4 WARNING Before performing a calibration it is the user s responsibility to confirm that they area is free of combustible gas IMPORTANT If the TX KE or TX KP is connected to an external alarm or control system the alarm or control system should be disabled or pla...

Page 16: ... Span Potentiometers TX KE Bionics Ins trument Co Ltd GAS DETECTOR TX KE Bionics Ins trument Co Ltd GAS DETECTOR TX KE Bionics Ins trument Co Ltd GAS DETECTOR Calibration Adapter Model TX KE TX KP Bionics InstrumentCo Ltd GAS DETECTOR TX KP Bionics Instr umentCo Ltd GAS DETE CTOR TX KP Bionics InstrumentC o Ltd GAS DETECTOR Calibration Adapter Model TX KP ...

Page 17: ...de instructions and materials for generating calibration gases and precise methods for accurately measuring the concentration of these gases NOTE The gas concentration should be close to but never exceed full scale 1 Connect the appropriate calibration cap to the inlet of the high flow sampling pump and connect the Tedlar waste gas bag to the outlet of the pump 2 Open the valve on the waste gas ba...

Page 18: ...just the span potentiometer as required 12 Close the valve on the calibration gas bag and disconnect it from the calibration cap 13 Allow the instrument to return to a zero reading If the instrument has not returned to zero after 5 minutes readjust the zero potentiometer as required 14 Close the valve on the waste gas bag and disconnect from the sampling pump 15 Turn the sampling pump off 16 Caref...

Page 19: ...edures 1 Remove the sensor as outlined in Section 5 1 1 2 Remove the box nut membrane retainer ring membrane O ring and silicon sheet depending on sensor model Box Nut Membrane Retainer Ring Membrane O ring Sensing Electrode Silicon Sheet 3 Place the sensor over the beaker as shown and pour the old electrolyte into the beaker Pressure Compensation Screw Beaker for Old Electrolyte ...

Page 20: ...r 10 cc s of fresh electrolyte into the sensor and rinse Discard into the beaker Sensing Electrode Nozzled Electrolyte Bottle Pressure Compensation Port Electrolyte 5 Place the sensor over the beaker as shown and pour the rinsed electrolyte into the beaker Pressure Compensation Screw Beaker for Old Electrolyte ...

Page 21: ... with fresh electrolyte until it reaches the MAX mark Sensing Electrode Nozzled Electrolyte Bottle Pressure Compensation Port Electrolyte 7 Wipe the sensing electrode and the surrounding area with a dry paper tissue Sensing Electrode Paper Tissue Fill level the MAX mark ...

Page 22: ...rop of electrolyte on the sensing electrode Enlarged View Drop of Electrolyte Sensing Electrode 10 Place a new membrane on the sensor with the bead of electrolyte between the electrode and the membrane Enlarged View Mmebrane Electrolyte Bead Sensing Electrode Mmebrane NOTE Do not touch center of membrane with bare fingers Oil from your fingers may adversely affect performance Membrane ...

Page 23: ...brane Retainer Ring Membrane 12 Turn the cell to the proper monitoring direction Box Nut is facing down and confirm that the level of electrolyte is at the MAX mark It is OK if the level is slightly above or below the MAX mark Reinstall the sensor cell into the transmitter or duct NOTE When storing the sensor cell never store the sensor cell horizontal with the Pressure Compensation Screw position...

Page 24: ...3 K II Cl2 K III HCN K IV SO3 K V H2S K VI NH3 K VII HCl K VIII HF Gas generation tubes 1 box 1 box 1 box 1 box Gas generation solution 10 ml 2 bottles 2 bottles 2 bottles 2 bottles Soft paper towels 1 pack 1 pack 1 pack 1 pack 1 pack Gas detection tube 1 box 1 box 1 box 1 box 1 box 1 box 1 box 1 box Gas sampling bags 5 liter 1 valve 2 2 2 2 2 2 2 2 Gas sampling pump SCAP1 1 1 1 1 1 1 1 1 Double b...

Page 25: ...quipment is available from PureAire Monitoring Systems to facilitate gas calibration Part Number Description Quantity PUMP2N High Flow Sampling Pump 1 690100 Calibration Cap for D Type Sensor Cells 1 690200 Calibration Cap for FPN Type Sensor Cells 1 690400 Calibration Cap for K Type Sensor Cells 1 ...

Page 26: ...PureAire Monitoring Systems Inc 2 22 2000 25 ...

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