Maintenance; Troubleshooting Minor Problems; Fail-Safe Operation; Fail-Safe Error Codes (Displayed Or Transmitted Via Electrical Interfaces) - Fluke Endurance Series User Manual

11. Maintenance

Our sales representatives and customer service are always at your disposal for questions
regarding application assistance, calibration, repair, and solutions to specific problems. Please
contact your local sales representative if you need assistance. In many cases, problems can
be solved over the telephone. If you need to return equipment for servicing, calibration, or
repair, please contact our Service Department before shipping. Phone numbers are listed at
the beginning of this document.
11.1.

Troubleshooting Minor Problems

Symptom
No output
Erroneous temperature
Erroneous temperature
Erroneous temperature
Erroneous temperature
Temperature fluctuates
11.2.

Fail-Safe Operation

The Fail-Safe system is designed to alert the operator and provide a safe output in case of any
system failure. Basically, it is designed to shut down the process in the event of a set-up error,
system error, or a failure in the sensor electronics.
The Fail-Safe circuit should never be relied on exclusively to protect critical
heating processes. Other safety devices should also be used to supplement
this function!

11.2.1. Fail-Safe Error Codes (displayed or transmitted via electrical interfaces)

When an error or failure does occur, the temperature display indicates the possible failure area,
and the output circuits automatically adjust to their lowest or highest preset level. The following
table shows the values displayed on the 7-segment temperature display and transmitted over
the RS485 or LAN / Ethernet interface.
Symptom
Heater control temperature over range
Heater control temperature under range ECUU
Internal temperature over range
Internal temperature under range
Temperature under range
Temperature over range
Innovative High Temperature Fiber Optic Infrared Pyrometers

Table 9: Troubleshooting

Probable Cause
No power to instrument
Faulty sensor cable
Field of view obstruction
Window lens
Wrong slope or emissivity
Wrong signal processing

Table 10: Error Codes in 1-Color Mode

Solution
Check the power supply
Verify cable continuity
Remove the obstruction
Clean the lens
Correct the setting
Correct Peak Hold or Average settings
Error Code Priority
ECHH 1 (high)
2
EIHH 3
EIUU 4
EUUU 5
EHHH 6 (low)
Maintenance
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