3-wire, 24vdc 4-20 ma sensor/transmitters for the detection of combustible gas (18 pages)
Summary of Contents for ENMET CD-1300-ST Series
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ENMET 680 Fairfield Court Ann Arbor, MI 48108 734.761.1270 Fax 734.761.3220 www.enmet.com CD-1300-ST Series CO2 Sensor/Transmitter Operation and Maintenance Menu...
1.2 Check Order Check, the contents of the shipment against the purchase order. Verify that the CD-1300-ST series is received as ordered. If there are accessories on the order, ascertain that they are present. Check the contents of calibration kits. Notify ENMET customer service personnel of any discrepancy immediately.
2.0 Features 2.1 Display and Indicators The basic CD-1300-ST Series has a single green LED on the front panel which illuminates whenever the unit is operating. This LED is on steadily when the measured concentration is below the high CO limit, and blinks whenever the concentration is above the limit.
3.1 Removal of Cover To open the CD-1300-ST series use a coin in the slot on the bottom to release the snap. Lift the cover up slightly to disengage the closure and remove cover with a downward motion to clear the catch at the top of the unit. The locations of controls and terminals on the main circuit board are shown in the Figure 2.
3.3.2 Signal Output The CD-1300-ST series provides either a 0 – 10 volts or a 4-20mA current loop output at the two terminals of the analog output connector shown in Figure 2. The type of analog output is determined by the setting of the analog output selector shown in Figure 2.
2000 ppm users need not perform this adjustment. The CD-1300-ST series ships from the factory set for an analog output range of 0 to 2000 ppm. This range can be changed to any sub-range between 0 and 5000 ppm by changing two parameters: The low output threshold is the concentration at which the analog output will begin to rise.
ENMET 4.2 Altitude Correction The CD-1300-ST series is factory-calibrated for operation at sea level. When operated at higher elevations, the calibration must be adjusted by the amount shown in the altitude correction table to the right. Table 1: Altitude Correction...
Limit An adjustable high CO limit is a standard feature of the CD-1300-ST Series. The front panel LED changes from steady to blinking when the indicated concentration is above the high CO limit value. An optional contact closure is available which opens or closes when the high limit is exceeded.
CD-1300-ST ENMET 5.2.3 Setting High Limit Contact Polarity The polarity of the high limit contact is set with jumper JP5 as shown in the table below. Jumper JP5 Relay Operation OPEN normally closed opens above set point CLOSED (factory default)
Minimum recommended flow rate is 200 feet per minute. A CD-1300-ST series with the duct sample option has a sample draw adapter fitted to the bottom of its enclosure. The duct probe assembly is connected to tubing nipples on the adapter.
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.
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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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