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8. Maintenance
Maintenance work is restricted to removing the sensor from the process now and again and cleaning
any accumulated particles off the probe and the insulation section using a cloth.
This is designed to prevent accumulated material resulting in bridge formation against the earthed
environment since this has a significantly adverse effect on the measurement. The other aim is to
prevent the probe becoming encased with accumulated material.
If the particles tend heavily towards accumulation the maintenance work should be carried out more
frequently. No maintenance work is required in the sensor housing or on the Evaluation unit.
9. Warranty
On condition that the operating conditions are maintained and no intervention has been made on
the device and the components of the system are not damaged or worn, the manufacturer provides
a warranty of 1 year from the date of delivery.
In the event of a defect during the warranty period, defective components will be replaced or
repaired at ENVEA Process plant free of charge as considered appropriate. Replaced parts will
become ENVEA Process property.
If the customer requests that parts be repaired or replaced at his site, the customer must pay the
travel expenses for ENVEA Process service personnel.
ENVEA Process cannot accept any liability for damage not suffered by the goods themselves and
in particular ENVEA Process cannot accept liability for loss of profit or other financial damages
suffered by the customer.
10. Error messages / Sensor status
HEX
HEX
BIN
BIN
DEC
Error
Status
ERR
PROC
Display
indication
DR
flashing
Current
output
Hi
Low
Hi
Low
00
01
00000000
00000001
1
unused
ERR
E001
1
4 ... 20 mA
00
02
00000000
00000010
2
SYS_IIC_DISCON
ERR
E002
3
2 mA
00
04
00000000
00000100
4
SYS_VITAL_ERR
ERR
E004
3
2 mA
00
08
00000000
00001000
8
unused
ERR
E008
1
4 ... 20 mA
00
10
00000000
00010000
16
SYS_ADS_BUSY
ERR
E010
3
2 mA
00
20
00000000
00100000
32
unused
ERR
E020
1
4 ... 20 mA
00
40
00000000 01000000
64
unused
ERR
E040
1
4 ... 20 mA
00
80
00000000
10000000
128
SYS_FRAM_ERROR
ERR
E080
3
2 mA
01
00
00000001
00000000
256
SYS_PARA_ERROR
ERR
E100
3
2 mA
02
00
00000010
00000000
512
unused
ERR
E200
1
4 ... 20 mA
• Errors are indicated in hexadecimal addition.
SYS_FRAM_ERROR and SYS_PARA_ERROR simultaneously indicate E180.
SYS_VITAL_ERR and SYS_IIC_DISCON simultaneously indicate E006.
10.1 Response to errors
• SYS_VITAL_ERR describes caking on the sensor and can be rectified by cleaning at the
customer.
- bridging occurring short-term is also detected
- indicated for at least 1 minute
- adjustable at the sensor (Service function)
• All other errors are serious hardware faults and cannot be rectified by the customer. The sensor
must be returned to the factory.