3-36 | Model 900 ADA / Model 930 Sulfur Pit Analyzers
Problem Encountered
The LEDs on the Termination board are not on.
Corrective Action
Take appropriate safety precautions and check for proper I/O wiring connec-
tions.
Also, press the reset switch (SW300) on the Termination board (inside the
Electronics Enclosure, Figure 3-11) to re-energize any tripped circuits.
Problem Encountered
Temperature zone values do not increase.
Corrective Action
Take appropriate safety precautions and check for proper wiring connections
for the corresponding temperature zone wiring.
Problem Encountered
Temperature zone value reads “181.4”. This temperature value indicates a
faulty RTD for the related temperature zone.
Corrective Action
Take appropriate safety precautions and check the RTD for a short or an open
circuit. If necessary, replace the RTD with an AMETEK-approved replacement
part. Contact AMETEK for assistance.
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