Table of Contents
Advertisement
6
Maintenance
6.1
Self diagnosis and error messages
6.1.1
Error messages via display
Error description
Voltage out short circuit - output 1 only*
Voltage out short circuit - output 2 only*
Voltage out short circuit - both outputs*
Current loop open - output 1 only
Current loop open - output 2 only
Current loop open - both outputs
Humidity sensor dirty
Hardware error
Temperature measurement failure
Humidity measurement failure
* not available with 0 - 1 V output
Tab. 2
Overview of error codes
Error category 1 = non-critical error, can be solved by the user
•. The display blinks and the buzzer beeps every 10 seconds.
•. The.red.status.LED.flashes.
Error category 2 = critical error, return the device to E+E for service
•. The display blinks and the buzzer beeps continuously.
•. The red status LED lights continuously.
6.1.2
Error messages via LEDs
Four status LEDs placed on both sides of a PCB are located close to the USB service interface, under a
blind cover.
Voltage output
power supply/
main board
Fig. 25
Status LEDs
LED 1 (blue): analogue output is set to voltage.
LED 2 (orange): analogue output is set to current.
LED 3 (flashing green): supply voltage applied (microprocessor is active).
LED 4 (red): constant lit: error category 1
flashes:.error.category.2
Operating instructions for EE360 Moisture in Oil
Error code (display) Error category Recommended action
LED 1
LED 2
PCB
LED 3
LED 4
1.1
1.2
1.3
2.1
1
2.2
2.3
3.x
5.x
6.x
8.x
2
7.x
9.x
10.x
Current output
Error LED
error LED on = error category 1
error LED flashes = error category 2
Check wiring of outputs
Check wiring of outputs
Clean the sensor
(see 6.3 Cleaning the sensing
head / filter replacement)
Return the faulty unit to
E+E for service
25
Advertisement
Table of Contents
