E+E Elektronik EE33, User Manual

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EE33 Humidity / Temperature Sensor for High Humidity and Chemical Applications
10.3 Fuse Replacement for Integrated Power Supply (Option AM3)
If the green LED on the PCB is not flashing with the supply
voltage switched on, check the fuse and replace if required.
Fuse secondary: 250mA / T UL248-14
Nominal voltage: 250V
Replacement types:
Series: MSTU 250 Manufacturer: Schurter Order No.: 0034.7109
Series: 374 Manufacturer: Littelfuse Order No.: 374 0250.
10.4 Self Diagnosis and Error Messages
10.4.1 Self diagnosis via LEDs on the circuit board
ƒ
LED D2 (green)
Flashing

Supply voltage applied / Microprocessor is active
ƒ
LED D1 (red)
Constantly lit

Humidity sensor element damaged
Flashing

Dew (condensation) at the humidity sensor element
ƒ
LED D3 (orange)
Constantly lit

Humidity sensor element will be heated (Automatic ReCovery)
Flashing

Sensor and threaded element soiled
10.4.2 Self diagnosis via display (optional):
Error 1

Humidity sensor element damaged
Error 2

Humidity sensor element moistened (condensation!)
Error 3

Temperature sensor element damaged
Error 4

Temperature sensor short-circuit
Error 5

Pt1000 probe element is damaged
Error 6

Pt1000 probe short-circuit
10.4.3 Further self diagnosis:
ƒ
Error
Possible cause

Measures / Help
ƒ
Display shows incorrect values
Error during re-adjustment of the transmitter

Reset to factory calibration and repeat the calibration routine
Filter soiled

Replace filter
Measuring cell contaminated

Automatic ReCovery (ARC)
Output configured incorrectly

Check output range and output signals in the configuration
ƒ
Long response time
Filter soiled

Replace filter
Incorrect filter type

Filter type should match the application
Types T17, T28