MODEL 5081-T

SECTION 10.0

 

DIAGNOSIS AND TROUBLESHOOTING

10.5 SYSTEMATIC TROUBLESHOOTING

If the Quick Troubleshooting Guide does not resolve the error, try the step-by-step approach offered in Figure 10-4.

Step 1 Follow the troubleshooting flow chart.

Step 2 Refer to the tests and instructions indicated by the flow chart to diagnose the problem.

NOTE:

Before starting this procedure make sure that all wiring is correct.

NO

Conductivity Measurement

Problem (in the process)

Remove the sensor from process and place sensor in air. Zero instru- ment. Refer to Section 5.3 & 5.4.

OK?

YES

NOTE:

This step is for normal contact- ing only, not for low conductivity or resistivity.

Place sensor in process and

standardize. Refer to Section 5.3.

 

 

YES

 

 

OK?

 

 

NO

Check diagnostic

 

 

messages

Remove sensor from process and test in known

 

Refer to Table 10-2

conductivity solution or against a certified

 

 

conductivity instrument

Check wiring

NO

YES

for short

 

OK?

Consult

 

YES

Service Center

 

 

Restart

Transmitter

Check for ground

loops and/or

improper installation

NO

Does problem

still exist?

FIGURE 10-4. Troubleshooting Flow Chart

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Emerson 5081-T instruction manual Systematic Troubleshooting, Troubleshooting Flow Chart