XNX Universal Transmitter - Merkantile

XNX Universal TransmitterWarningWhen servicing or replacing sensors, reduce the risk of ignition ofhazardous atmosphere by declassifying the area or disconnectingthe equipment from the supply circuit before opening the detectorenclosure. Keep assembly tightly closed during operation.Take care when handling sensors as they may contain corrosivesolutions. Do not tamper or in any way disassemble the sensor cell.Do not expose to temperatures outside the recommended range. Donot expose sensor to organic solvents or flammable liquids.At the end of their working life, sensors must be disposed of in anenvironmentally safe manner. Disposal should be according to localwaste management requirements and environmental legislation.Alternatively, sensors may be securely packaged and returned toHoneywell Analytics clearly marked for environmental disposal.Sensors should NOT be incinerated as they may emit toxic fumes.CautionThe following procedure should be followed carefully and onlyperformed by suitably trained personnel.A fault condition will be signaled by the detector if the sensor isremoved with the unit under power.4.1 MPD Sensor Cartridge ReplacementUsing Figure 4-1 as a guide, follow the procedure below:1. Check that the label on the new sensor is the correct gas type.2. Remove power from the transmitter.3. Unscrew the weatherproof cover (if equipped), loosen theretainer locking screw and unscrew the sensor retainer.4. Remove the old sensor by pulling without twisting.5. Slide the replacement cell into the MPD body taking care toalign the tab with the alignment slot, then press the cell firmlyto seat it into the body.6. Refit the sensor retainer, tighten the locking screw and refit theweatherproof cover (if equipped).7. Re-calibrate the detector following the procedures in Section3.2.1.Internal O-ring(critical to performance times)Cell Alignment SlotSensor Retainerand Locking ScrewSensor CellIR or Cat BeadFigure 4-1. Replacing Plug In SensorSection 4 - Maintenance 4-24.1 MPD Sensor Cartridge Replacement