Be sure to check all wiring segments:
•
If you have a 4-wire transmitter, check the wiring between the transmitter and the
core processor.
•
If you have a 9-wire transmitter, check the wiring between the transmitter and the
sensor junction box.
•
If you have a remote transmitter with remote core processor, check the wiring
between the transmitter and the core processor and the wiring between the core
processor and the sensor junction box.
Prerequisites
You will need the installation manual for your transmitter.
Procedure
1.
Before opening the wiring compartments, disconnect the power source.
DANGER!
If the transmitter is in a hazardous area, wait five minutes after disconnecting the
power.
2.
Verify that the transmitter is connected to the sensor according to the information
provided in your transmitter installation manual.
3.
Verify that the wires are making good contact with the terminals.
4.
Check the continuity of all wires from the transmitter to the sensor.
12.13
Check grounding
A sensor and the transmitter must be grounded.
Prerequisites
You will need an:
•
Installation manual for your sensor
•
Installation manual for your transmitter (remote-mount installations only)
Procedure
Refer to the sensor and transmitter installation manuals for grounding requirements and
instructions.
12.14
Perform loop tests
A loop test is a way to verify that the transmitter and the remote device are
communicating properly. A loop test also helps you know whether you need to trim mA
Outputs.
Troubleshooting
Configuration and Use Manual
179
Summary of Contents for Micro Motion 2500
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