ENMET Corporation PO Box 979 Ann Arbor, MI 48106-0979 www.enmet.
Table of Contents 1.0 INTRODUCTION ....................................................................................................................................................... 1 1.1 Unpack ...............................................................................................................................................................................1 1.2 Check Order .......................................................................................................................
EX-5175-EC ENMET Corporation 1.0 Introduction The ENMET EX-5175-ELECTROCHEMICAL, EC sensor/transmitters (S/T) is a 3-wire, 24 VDC 4-20mA S/T for the detection of toxic gas. The EX-5175-EC is meant to be used in conjunction with an appropriate power supply and controller. The ENMET EX-5175-EC sensor/transmitter has been designed and approved to be used in a Class I, Div. 1, Groups B, C, D, classified areas. The approval was issued by CSA International.
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EX-5175-EC ENMET Corporation 3.0 Installation of the EX-5175-EC CAUTION: Area must be declassified during installation. The ENMET EX-5175-EC gas sensor/transmitter (S/T) is a 3-wire, 24 VDC, 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 ENMET EX-5175-EC sensor/transmitter has been designed and approved to be used in a Class I, Div. 1, Groups B, C, D, classified areas.
EX-5175-EC ENMET Corporation 3.2 Wiring the EX-5175-EC to a Control Unit CAUTION: Area must be declassified during installation. 2 Run conduit and 16 AWG (1.5MM ) wires to the enclosure from the power supply and controller. If the EX-5175-EC is installed in a hazardous location as defined by the National Electrical Code, then ALL wiring must be in accordance with the National code and any local governing codes.
EX-5175-EC ENMET Corporation 3.3 Start up When the EX-5175-EC transmitter is first powered up, it goes through a series of momentary screens, which identify the instrument model number, serial number and software revision. After all of the momentary screens have been displayed, the instrument arrives at the Main Gas Display showing the gas concentration and unit of measurement.
EX-5175-EC ENMET Corporation 4.0 Operation of the EX-5175-EC It is best to have the EX-5175-EC transmitters powered up and operational for 24 hours before applying calibration or test gas to them. 4.1 Normal Display Mode When the EX-5175-EC 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-5175-EC. The red alarm and fault LEDs are not lit.
EX-5175-EC ENMET Corporation 5.0 Maintenance of the EX-5175-EC CAUTION: Do not open the EX-5175-EC S/T in a classified area. CAUTION: Do Not Attempt A Span Procedure Without Calibration Gas Applied to The Sensor; if this is done, the S/T is forced into a calibration fault mode. Magnetic switches control the MENU and SELECT functions. The MENU and SELECT switch locations are indicated on the display panel, see Figure 3.
EX-5175-EC ENMET Corporation 5.2 Calibration of the EX-5175-EC Calibration is the process of setting the instrument up to read accurately when exposed to a target gas. The Zero function sets the clean air reference point and the Span function sets the sensitivity of the instrument. Initial Calibration: Wait 24 hours after initially supplying power to the EX-5175-EC sensor/transmitter (S/T) before initial calibration.
EX-5175-EC ENMET Corporation 5.2.1 Zero Adjust Zero function is Not applicable for Oxygen sensor/transmitters, go to Section 5.2.2 Gas Span. A ZERO function should be performed only when the EX-5175-EC 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. Enter the maintenance menu by placing the magnet over MENU switch for 2 to 4 seconds.
EX-5175-EC Normal Display Mode 5ppm ENMET Corporation HOLD the magnet over the MENU switch for 2 – 4 seconds to enter the Maintenance Menus MENU Exit Tap the SELECT switch to return to the Normal Display Mode. See Section 5.2.
EX-5175-EC ENMET Corporation 5.3 Sensor Replacement CAUTION: Area must be declassified during sensor replacement. Sensors should be replaced when they can no longer be calibrated. Replacement sensor part numbers are listed in Section 6.0 of this manual. If you do not know the proper part number for your sensor, be sure to have the EX-5175-EC serial number available when contacting your Distributor or ENMET Corporation Technical Support.
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PO Box 979 680 Fairfield Court Ann Arbor, Michigan 48106-0979 734.761.1270 Fax 734.761.3220 Returning an Instrument for Repair ENMET instruments may be returned to the factory or any one of our Field Service Centers for regular repair service or calibration. The ENMET Repair Department and Field Service Centers also perform warranty service work.
Repair Return Form Mailing Address: ENMET Corporation PO Box 979 Ann Arbor, Michigan 48106 Phone Number: FAX Number: Shipping Address: ENMET Corporation Attn: Repair Department 680 Fairfield Court Ann Arbor, Michigan 48108 734.761.1270 734.761.
