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Replacement of dm-700 sensor assembly, 6 replacement of dm-700 sensor assembly – Detcon DM-700 User Manual

Page 35

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Model DM-700

DM-700 Instruction Manual

Rev. 4.0

Page 31 of 48

h) Perform Set AutoSpan Level, Set Serial ID, Set Range, and then perform a successful AutoZero and
AutoSpan before placing sensor into service.

5.6 Replacement of DM-700 Sensor Assembly

a) Remove the power source from the sensor assembly. Disconnect all sensor wire connections at the J-Box.

NOTE: It is necessary to remove power to the J-Box while changing the DM-700 sensor in
order to maintain area classification.

b) Use a wrench and the wrench flats provided at the top section of the ITM and unthread the ITM until it can
be removed.

c) Use a 1/16” Allen wrench to release the locking setscrew that locks the ITM and Splash Guard Adapter
together (One turn will suffice - Do not remove setscrew completely).

d) Remove splashguard. Unthread and remove the Splash Guard Adapter from the ITM.

e) Feed the new DM-700 sensor assembly wires through the ¾” female NPT mounting hole and thread the
assembly into the J-box until tight and the ITM lens faces toward the front access point. Connect the sensor
assembly wires inside J-Box (Refer to Section 2.6, and Figure 10).

d) DM-700 sensors are factory calibrated, however, they require an initial AutoZero and AutoSpan calibration
(Section 3.4), and must be configured per customer specific application requirements.