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Summary of Contents for ENMET EX-5150 MOS
- Page 1 ENMET 680 Fairfield Court Ann Arbor, MI 48108 734.761.1270 Fax 734.761.3220 www.enmet.com EX-5150 MOS Sensor Transmitter For PPM or %LEL Operation and Maintenance Manual...
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Page 2: Table Of Contents
EX-5150 ENMET Table of Contents 1.0 I ..................................2 NTRODUCTION 1.1 Unpack ......................................2 1.2 Check Order ..................................... 2 1.3 Serial Numbers....................................2 EX-5150-MOS ............................3 2.0 F EATURES OF THE EX-5150-MOS ..........................4 3.0 I NSTALLATION OF THE 3.1 Mounting the EX-5150-MOS Enclosure ............................4 3.2 Wiring the EX-5150-MOS to a Control Unit ........................... -
Page 3: Introduction
If you need your shipments insured, please forward a written request to ENMET Customer Service. Regarding Shortages If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of receipt at the following address: ENMET... -
Page 4: Features Of The Ex-5150-Mos
POT 2: Does Not apply to MOS, not used Do not adjust POT 3: Does Not apply to MOS, not used Do not adjust POT 4: MOS Heater Voltage, do not adjust unless advised by ENMET Visual Alarms LED indicators:... -
Page 5: Installation Of The Ex-5150-Mos
, 4-20 mA S/T for the detection of toxic or combustible gas. The S/T is meant to be used in conjunction with an appropriate power supply and controller. The ENMET EX-5150-MOS sensor transmitter is in an enclosure rated for use in a Class I, Div. 1, Groups B, C, D, classified area. Appropriate wiring, conduit and fittings are required for proper installation in a explosion proof rated environment. -
Page 6: Wiring The Ex-5150-Mos To A Control Unit
When on power the relays are energized. RS-485 D– Relays are rated at 0.5 Amp continuous. P l u g J 4 Wires to *Contact ENMET for Modbus Controller Address information 1 2 3 Relay Output Board Bottom View... -
Page 7: Figure 3: Terminal Positions Ex-5150-Mos Sensor/Transmitter
EX-5150 ENMET Display Overlay Screws (2 places) Display Overlay Display Magnetic Display Overlay Standoffs Switches (2 places) (2 places) Printed Circuit Board (PCB) J4 and J8 Terminals are located on the bottom side of PCB Optional Relay Output Circuit Board... -
Page 8: Operation Of The Ex-5150-Mos
EX-5150 ENMET 4.0 Operation of the EX-5150-MOS It is best to have the EX-5150-MOS transmitters powered up and operational for 24 hours before applying calibration or test gas to them. When the EX-5150-MOS transmitter is first powered up, it goes through a series of momentary screens, which identify the instrument model number, serial number and software revision. -
Page 9: Purge
EX-5150 ENMET 4.1.3 Purge Purging is a function that temporarily increases the sensor heater voltage to clean off contaminants. Some sensors operate at higher heater voltages where purging is not required. The EX-5150-MOS S/T is configured at the factory for the installed sensor purging requirements. -
Page 10: Maintenance Of The Ex-5150-Mos
EX-5150 ENMET 5.0 Maintenance of the EX-5150-MOS : Do not open the EX-5150-MOS S/T in a classified area. AUTION : Do Not Attempt a Span Procedure Without Calibration Gas Applied to The Sensor; if this is done, the S/T is forced into a AUTION calibration fault mode. -
Page 11: Calibration Of The Ex-5150-Mos
Span reference point for calibration. Depending on the instrument calibration, the Span gas may be the same gas that the instrument is calibrated to display, or it may be another gas, which ENMET has found to have a similar response. -
Page 12: Table 2: Standard And Non-Standard Calibration Gas
200 PPM 500 PPM 03033-813 800 PPM 800 PPM Hydrogen Hydrogen Gas Type/ Non – Standard Considered Special Calibrations, use for examples only. Consult ENMET for specifications and availability. Ammonia 0 – 300 150 PPM 300 PPM 03033-019 300 PPM... -
Page 13: Zero Adjust
EX-5150 ENMET 5.2.1 Zero Adjust A ZERO function should be performed only when the EX-5150-MOS sensor/transmitter is exposed to fresh air. If the air at the sensor is in question, use a cylinder of 20.9% oxygen to provide a clean air reference. Attach the cylinder to the calibration adapter, fill the humidifier bowl halfway with water and allow gas to flow over the sensor for 3 –... -
Page 14: Figure 5: Ex-5150-Mos Maintenance Menu Flow Chart
EX-5150 ENMET Normal Display Mode the magnet over the M switch for 2 – 4 seconds to 5ppm enter the Maintenance Menus Tap the S switch to return to the Normal Display ELECT Exit ELECT Mode. See Section 5.2.3 Select... -
Page 15: Heater Voltage Settings
Heater Voltages are necessary for MOS sensors. They are preset at the factory and should not require field adjustment. Do not adjust these voltages unless specifically instructed to do so by ENMET Corporation Technical Support Staff. : 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-5150-MOS may not respond to it’s target gas. - Page 16 EX-5150 ENMET Notes: Manual Revision Date – June 14, 2017 P a g e | 15 Manual Part No. – 80003-097...
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Page 17: Terms And Conditions
ENMET, LLC for damages arising out of or in connection with the use or repair or performance of the product. -
Page 18: Instructions For Returning An Instrument For Service
ENMET charges a one hour minimum billing for all approved repairs with additional time billed to the closest tenth of an hour. All instruments sent to ENMET are subject to a minimum evaluation fee, even if returned unrepaired. - Page 19 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? ☐ Yes ☐ No CUSTOMER INFORMATION Billing Address:...
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