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6. Troubleshooting
6.1 Output relay fails to switch
1. Check power supply and the connection contacts.
2. Check whether the green LED is flashing or the yellow LED is lit. This indicates a problem with the
relay contact.
3. Check whether the red LED flashes during an active measurement. Error code!!
If the sensor is still not supplying signals after these checked, contact our agents or ENVEA Process
direct.
6.2 Errors
Errors can be seen via the software or via LED‘s status.
A – Hardware Error condition
If an internal hardware error is detected LED 3 (red, 1-0-0) starts flashing.
Hardware errors cannot be cured on site. Please contact ENVEA Process or you distributor.
Message
Description
LED blink
Relay status
Current output
MOD error
The ModBus connection is not working
1
Alarm
2 mA
EEP error
The EEPROM cannot be read/written to
8
Alarm
2 mA
IIC error
The IIC bus is defective
2
Alarm
2 mA
ADS error
The ADC provides incorrect timing
5
Alarm
2 mA
PAR error
The EEPROM provides inconsistent data
9
Alarm
2 mA
B – Metrology System Error condition
The system checks if the metrology can work properly
Message
Description
LED blink
Relay status
Current output
VIT
(coating)
Limited measurement range due
to coating (conductive)
3
On-Off
2 mA
FAN
Fan failure
4
On-Off
2 mA
These instruments conform to the following standards:
Product standard - electrical equipment for measurement, control and laboratory use
EMC requirement
Reference standard EN 661326
Year of publication (1997) Updates A1 (1998), A2 (2001), A3 (2003)
