ENMET Corporation PO Box 979 Ann Arbor, MI 48106-0979 GS-24-DF Manual 80003-142 October 2003 MCN-314, 12/05/03
Table of Contents 1.0 INTRODUCTION ...............................................................................................................................................................1 1.1 UNPACK .............................................................................................................................................................................1 1.2 CHECK ORDER...................................................................................................................
1.0 Introduction The ENMET GS-24-DF is designed to be used with most ENMET Corporation stationary sensor/transmitters. Specifications: Flow Range Power Alarm Relay Digital Display Alarms 0 – 1 lPM, 2 – 0 CFM, or 0 – 2000 CCM 24 VDC Positive safety, 2A 30VDC, 0.4A 115VAC Backlit Audio and LED indicators NOTE: All specifications stated in this manual may change without notice. 1.1 Unpack Unpack the GS-24-DF and examine it for shipping damage.
2.0 Features See Figure 1 and 2 Feature Description Power Terminal This terminal provides connections for: the DC power (24 VDC) supplied from external power source, Sensor/Transmitters and 4-20mA Display LCD, Allows the user to verify and monitor the flow rate of the air sample. Standard flow rate, approximately 05 lpm(liter per minute). Indicator LED Green/Red: When green indicates flow rate is sufficient. When red indicates flow rate is inadequate.
Display Gas Sensing Chamber Pump Output SW1 MENU Switch SW2 SELECT Switch POT Flow Adjust Figure 2: Interior View 3.0 Installation The GS-24-DF needs to be level and as close to the area to be monitored as possible, to reduce transport time to the sensor/transmitter. • Sensor/Transmitters can be located within the GS-24-DF or remotely. • Inlet tubing must be compatible with the target gas.
4.0 Display Settings To display the current settings of the GS-24-DF use the push button switches. See figures 1 and 2 for location of switches. Access the MENU and SELECT switches through holes in front. See figures 1 and 2. To cycle through the display settings press: MENU switch once = Low Flow alarm setting. MENU switch twice = High Flow alarm setting. MENU switch three times = Audio alarm on or off. MENU switch four times = Raw sensor signal in millivolts.
5.0 Maintenance Diaphragm Star Head Screw 2 places Check Valve Housing Pump Arm Mounting Screws 3 places Top View Side View Figure 3: Pump Features 5.1 Pump diaphragm Replacement If the diaphragm becomes damaged or torn, it can be replaced. Replacement diaphragm ENMET part number 04018-117. Figure 4: Diaphragm Details Remove 2 star head screws and pump arm. See figures 3 and 4. Remove damaged diaphragm from pump arm and replace with new diaphragm.
5.2 Check Valve Housing Replacement If the check valve becomes damaged or to warn to operate correctly it can be replaced. Pump repair kit ENMET part number 04018-116. WARNING: The check valve housing and associated gasket must be installed in the proper position for the pump to operate correctly. If they are installed improperly the pump will flow in the wrong direction. Remove the outlet fittings, pump arm with diaphragm and note the orientation of the check valve hosing and gasket.
6.0 WARRANTY ENMET warrants new instruments to be free from defects in workmanship and material under normal use for a period of one year from date of shipment from ENMET. The warranty covers both parts and labor excluding instrument calibration and expendable parts such as calibration gas, filters, batteries, etc... Equipment believed to be defective should be returned to ENMET within the warranty period (transportation prepaid) for inspection.
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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 Shipping Address: ENMET Corporation Attn: Repair Department 680 Fairfield Court Ann Arbor, Michigan 48108 Mailing Address: ENMET Corporation PO Box 979 Ann Arbor, Michigan 48106 Phone Number: FAX Number: 734.761.1270 734.761.
