Emerson IFT9701 Troubleshooting, General guidelines, Transmitter diagnostic tools

Chapter 8

Troubleshooting

8.1Customer service

For assistance, phone the Micro Motion Customer Service Department. Phone numbers are listed on the title page of this manual.

8.2General guidelines

Troubleshooting a Micro Motion flowmeter is performed in two parts:

•Tests of wiring circuit integrity.

•Observation of the transmitter's diagnostic tools, which include the diagnostic LED, fault output levels, and optional LCD.

CAUTION

During troubleshooting, the transmitter could produce inaccurate flow signals.

Set control devices for manual operation while troubleshooting the flowmetering system.

Follow these general guidelines while troubleshooting a Micro Motion flowmeter:

•Before beginning the diagnostic process, become familiar with this instruction manual and with the instruction manual for the sensor.

•While troubleshooting a problem, leave the sensor in place, if possible. Problems may result from the specific environment in which the sensor operates.

•Check all signals under both flow and no-flow conditions. This procedure will minimize the possibility of overlooking some causes or symptoms.

8.3Transmitter diagnostic tools

In some situations, troubleshooting requires use of the transmitter's diagnostic tools, which include the diagnostic LED, fault output levels, and optional LCD.

8.3.1Diagnostic LED

The diagnostic LED indicates the operating condition of the transmitter. Table 8-1explains the operating conditions indicated by the diagnostic LED. Figure 8-1 shows the location of the LED in the intrinsically safe wiring compartment.

Flowmeter Startup

Configuration with Communicator

Configuration with ProLink II

Troubleshooting

Model IFT9701 Transmitter Instruction Manual 57