Detcon DM Transmitter Test Fixture - Manual (Page 4)

Detcon Model DM Transmitter Test Fixture
Page 4 of 8
3.0 Specifications
Compatible with the Following Models
Model Series DM-524x, DM-550x, DM624x
Input Power
100-240VAC, 50 / 60Hz
Power Consumption
< 17 Watts
Digital Current Meter
Accuracy: ± 0.3% FS
Warranty
Two year
Outputs
Serial RS-485 Modbus™
4.0 Operation
Before using the test fixture, the technician should first be familiar with the operation of
Detcon DM series toxic gas sensors. Review the applicable sensor instruction manual(s)
for detailed operating instructions.
The test fixture is designed to verify performance of the Detcon DM series transmitters
only. The test fixture circuitry mimics the sensor portion of the complete sensor
assembly.
NOTE 1: The test fixture is designed to be used with only one transmitter at a time.
Plugging more than one transmitter in the test fixture at the same time (P1 and P2) will
cause erroneous readings.
NOTE 2: Reference Figure 1 for location of test fixture components. Before starting
verify that SW1 is in the “0” position.
NOTE 3: Model series DM-4xx loop powered transmitters are not compatible with this
test fixture.
4.1 DM-5xx Transmitters
Require tools:
Detcon PN 327-000000-000 MicroSafe™ Programming Magnet
NOTE: These instructions cover testing of the main features of the DM-5xx transmitter.
See the applicable DM-5xx instruction manual for a complete list of program features
and detailed operating procedures.