Emerson IFT9701 Manuel D’Utilisation

57

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

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.

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.

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

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

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