DM-534C Oxygen Sensor Assembly
DM-534C O2 Sensor Instruction Manual Rev. 1.5
Page 9 of 17
Blue
White
Blue
White
Remote Transmitter
DM-534C-RT
Remote Sensor
DM-534C-RS
Figure 9
Remote mounting application
7.0
START UP
Upon completion of all mechanical mounting and termination of all field wiring, apply system power and
observe the following normal conditions
a)
“Fault” LED is off.
b)
A temporary upscale reading may occur as the sensor powers up. This upscale reading will clear to
about 20.9% within a few minutes of turn-on, assuming there is no oxygen deficient condition in the
area of the sensor.
Note 1
: If the display contrast needs adjustment, refer to section 8.7.
Initial Operational Tests
After a warm up period has been allowed for, the sensor should be checked to verify reliable sensitivity to O2
gas.
Material Requirements
-Detcon PN 327-000000-000 MicroSafe™ Programming Magnet
-Detcon PN 613-120000-000 Splash Guard with integral Cal Port -OR-
-Detcon PN 943-000006-132 Threaded Calibration Adapter
-Detcon PN 942-001123-000 Zero Air cal gas or use ambient air if no combustible gas is present.
a)
Attach the calibration adapter to the threaded sensor housing. Apply the test gas at a controlled flow
rate of 500 ml/m. Observe that the LCD display decreases to a level of 3% or less.
b)
b) Remove the test gas and observe that the LCD display increases back to 20.9% ±2% of scale (0.5%
O2).
