Rack Control Module
TM
Product Manual
Rev. 1.2, May 9, 2014 Page 27
NOTE: The TD80 system has now been thoroughly tested. The next step is to confirm correct
operation of the RCM and sockets. A Universal Truck Tester (UTT) is required to test correct
operation of the installed 5-wire Optic and/or 2-wire Thermistor socket(s).
8. Test the RCM signals to the Sockets. A Universal Truck Tester (UTT) with suitable
cables for optic and thermistor sockets is required to complete the remaining tests.
a. Ensure that the TD80 system and RCM are operating normally and all alarms
are cleared before continuing.
b. Configure the UTT for 5-wire optic probe testing. Refer to the UTT Operating
Manual for details.
c. Confirm that the UTT indicates Optic controlled loading permitted and denied
by the following:
i. Plug the UTT cable into the vehicle mounted 10-pin API Optic
Socket.
ii. Confirm that the Good Indicator is ON solid.
iii. Place a hand or metal tool across the probe and slide up the probe
to the HH alarm level.
iv. Confirm that the Finch display indicates a HH alarm and the UTT
indicates Fail ON solid.
v. Slide the hand or metal tool down to the bottom of the probe and
confirm that the UTT indicates Good solid after 1 minute or cycling
the power.
d. Configure the UTT for 2-wire thermistor probe testing. Refer to the UTT
Operating Manual for details.
e. Confirm that the UTT indicates Thermistor controlled loading permitted and
denied by the following:
i. Plug the UTT cable into the vehicle mounted 10-pin API Thermistor
Socket.
ii. Confirm that all the Good Indicators are ON solid.
iii. Place a hand or metal tool across the probe and slide up the probe
to the HH alarm level.
iv. Confirm that the Finch display indicates a HH alarm and the UTT
shows all Fail Indicators ON solid.
v. Slide the hand or metal tool down to the bottom of the probe and
confirm that the UTT indicates Good solid after 1 minute or cycling
the power.
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