Reference Manual
00809-0100-4835 Rev BD
July 2016
Rosemount 3150 Series
5-18
Symptom
Potential Source
Corrective Action
Low Output
or No
Output
Transmitter
Electronics Failure
Determine faulty circuit board by trying spare electronics assembly or
terminal block assembly. Replace faulty assembly.
Sensor Module
NOTE: See Sensor Module Checkout section
. The sensing element
is not field repairable and must be replaced if found to be defective.
See
Disassembly Procedure
for instructions on disassembly. Check
for obvious defects (i.e. punctured isolating diaphragm, etc.) and
contact Rosemount Nuclear Instruments, Inc.
Power Supply
Check the power supply output voltage at the transmitter.
Loop Wiring
Check for inadequate voltage to the transmitter.
Check for intermittent shorts, open circuits, or multiple grounds.
CAUTION
Do not use more than 55 volts to check the loop, or damage to
the transmitter electronics may result.
Erratic
Output
Impulse Piping and
Process Connections
Check for entrapped gas in liquid lines, or liquid in dry lines.
Transmitter
Electronics
Check for intermittent shorts or open circuits.
Make sure the pins on the jumper, the pins on the filters, and the pins
on the sensor module are clean
Transmitter
Electronics Failure
Determine faulty circuit board by trying spare electronics assembly or
terminal block assembly. Replace faulty assembly.
Power Supply
Check power supply output voltage.
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