ENMET EX-5155-MOS Operation Manual

Toxic gas sensor/transmitter

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ENMET
680 Fairfield Court
Ann Arbor, MI 48108
734.761.1270 Fax 734.761.3220
www.enmet.com
EX-5155 -MOS
Toxic Gas Sensor/Transmitter
Operation Manual

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Summary of Contents for ENMET EX-5155-MOS

  • Page 1 ENMET 680 Fairfield Court Ann Arbor, MI 48108 734.761.1270 Fax 734.761.3220 www.enmet.com EX-5155 -MOS Toxic Gas Sensor/Transmitter Operation Manual...
  • Page 2 ENMET EX-5155 Manual Release Date – November 26, 2018 P a g e Manual Part No. – 80003 -098...
  • Page 3: Table Of Contents

    ..........................10 5.0 M EX-5155 -MOS ..........................11 AINTENANCE OF THE 5.1 Maintenance Menu ..................................11 5.2 Calibration of the EX-5155-MOS ..............................12 5.2.1 Zero Adjust........................................5.2.2 Gas Span........................................14 5.2.3 Exit Maintenance Menu ....................................14 5.3 Heater Voltage Settings .................................
  • Page 4 ENMET EX-5155 Manual Release Date – November 26, 2018 P a g e Manual Part No. – 80003-098...
  • Page 5: Introduction

    1.2 Check Order Check, the contents of the shipment against the purchase order. Verify that the EX-5155-MOS is received as ordered. [Each EX- 5155 -MOS is labeled with its target gas.] If there are accessories on the order, ascertain that they are present. Check the contents of ENMET calibration kits.
  • Page 6: Features Of The Ex-5155 -Mos

    Referred to as tap. Since the magnetic field penetrates the window, the enclosure cover is not removed in order to perform calibration. Three alarm points are preprogrammed into the EX-5155-MOS sensor/transmitters. At each alarm point, an LED on the front panel is activated.
  • Page 7: Installation Of The Ex-5155 -Mos

    : Area must be declassified during installation. AUTION ENMET EX-5155-MOS gas sensor/transmitter (S/T) is a 3 -wire, 24 V , 4-20 mA S/T for the detection of toxic gas. The S/T is meant to be used in conjunction with an appropriate power supply and controller. The...
  • Page 8: Wiring The Ex -5155-Mos To A Control Unit

    Run conduit and 16 (1.5 ) wires to the enclosure from the power supply and controller. If the EX-5155-MOS is installed in a hazardous location as defined by the National Electrical Code, then wiring must be in accordance with the National code and any local governing codes Open the enclosure, and remove the 2 screws that retain the display overlay to the circuit board.
  • Page 9 (PCB) Figure 3: Terminal Positions EX -5155 -MOS Sensor/Transmitter When wiring is complete, reassemble the EX-5155-MOS. Use caution when installing the overlay so as not to damage the Do Not magnetic switches. Put the cover back on the S/T apply power to the S/T without the cover in place.
  • Page 10: Operation Of The Ex-5155 -Mos

    When the EX-5155-MOS transmitter is first powered up, it goes through a series of momentary screens, which identify the instrumen model number, serial number and software revision. After all of the momentary screens have been displayed, the instrument arrives the Main Gas Display showing the gas concentration and unit of measurement.
  • Page 11: Normal Display Mode

    4.2 Normal Display Mode When the EX-5155-MOS is installed as described in section 3, and in clean air, the POWER green LED is on, the display is lit and the information on the display is measurement of the target gas detected by the EX-5155-MOS.
  • Page 12: Maintenance Of The Ex-5155 -Mos

    Hold the magnet over M switch for 2 – 5 seconds to enter the Maintenance Menu The Power/Fault LED will flash Green – Red to indicate the EX-5155-MOS is in Maintenance Mode To exit the maintenance Menu and return to the Normal...
  • Page 13: Calibration Of The Ex-5155-Mos

    Span function sets the sensitivity of the instrument. Initial Calibration: Wait 24 hour s after initially supplying power to the EX-5155-MOS sensor/transmitter (S/T) before initial calibration. The S/T has been pre -calibrated at the factory, and initial field calibration should result in only fine tuning to circuit, as well as a way to che ck that installation is successful.
  • Page 14 ENMET EX-5155 Table 3: Examples of Standard and Non -Standard Calibration Gas Range Alarm 1* Alarm 2* Alarm 3* Sensor Span Calibration Point Part Calibration Gas Number Gas Type/ Standard Methyl Chloride 0 – 400 100 PPM 200 PPM 300 PPM...
  • Page 15: Zero Adjust

    5. Watch for the signal level to stabilize. Refer to Table 4 for typical response times. 6. Once the signal level has stabilized, the EX-5155-MOS will automatically lock in the calibration data and: If the Span is successful, Cal OK appears on the display momentarily, then advances to Alarm 1. Remove calibration gas.
  • Page 16 ENMET EX-5155 Normal Display Mode the magnet over the M switch for 2 – 4 seconds 5ppm to enter the Maintenance Menus Tap the S switch to return to the Normal ELECT Exit ELECT Display Mode. See Section 5.2.3 Menu...
  • Page 17: Heater Voltage Settings

    Improper adjustment of heater voltages can damage sensors voiding any warranties and also alter the operating AUTION characteristics of the sensor in such a way that the EX-5155-MOS may not respond to it’s target gas. 5.4 Sensor Replacement : Area must b e declassified during sensor replacement.
  • Page 18: Replacement Part Numbers

    ENMET EX-5155 6.0 Replacement Part Numbers ENMET replacement part numbers: Description Part Number For EX-5155-MOS p/n 10014 -018 Sensor 03015 -000 03016 -000 03018 -000 03019 -000 ENMET ENMET Consult Distributor or Corp for additional sensors Regulator 03700 -008 Overlay...
  • Page 19 If a component is purchased and installed in the field, and fails within the warranty term, it can be returned to ENMET and will be replaced, free of charge.
  • Page 20 $50.00 or 20% restocking fee, whichever is greater. Approval of equipment for return is fully at the discretion of ENMET. All requests for return/exchange must be made no later than 30 days of the original shipping date...
  • Page 21 Connect the calibration cup to the sensor and allow the gas to flow for 3 minutes. • At the end of the 3 minutes tap the SELECT switch on the EX-5155-MOS to start the span operation. The display will alternate between PV and a number.
  • Page 23 Mailing/Shipping Address: ENMET 680 Fairfield Court Ann Arbor, MI 48108 Phone: 734.761.1270 repair@enmet.com Fax: 734.761.3220 Service Request Form Product Name or Number: Product Serial Number: Describe Problem or Needed Service: Warranty Claim? CUSTOMER INFORMATION Shipping Address: Billing Address: Contact Name:...

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10014-018

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