Service and repair 35/46
RE 51550-B/04.2021,
Hengst Filtration GmbH
7.2 Troubleshooting and remedy
Problem / fault
Possible cause
Remedy
No indication
No supply voltage
Check cables and replace, if necessary
Error messages in the display:
Change between Err and Exxx: e.g.
⇔
Error 001 Ambient temperature too low
Comply with limit values
Error 002 Ambient temperature too high
Comply with limit values
Error 004 Pt100 defective (short-circuit)
Send in device for repair
Error 008 Pt100 defective (cable break)
Send in device for repair
Error 032 Sensor defective (supply line
open)
Send in device for repair
Error 064 Transmitter (humidity)
Input signal too low
Error 128 Transmitter (humidity)
Input signal too high
Error 256 Transmitter (temperature)
Input signal too low
Error 512 Transmitter (temperature)
Input signal too high
Error 1024 Internal error
Please contact
customer service
Possible errors
Problem / fault
Possible cause
Remedy
Switching output does
not switch when limit
values are exceeded
Incorrect configuration
of the switching output
In the submenu
cOUx
:
"Testing the switching output",
ensure normal operation
Defect on the switching
output
In the submenu
cOUx
:
"Testing the switching output",
test the desired switching status
Switching output
permanently switches
through
Incorrect configuration
of the switching output
In the submenu
cOUx
:
"Testing the switching output",
ensure normal operation
Defect on the switching
output
In the submenu
cOUx
:
"Testing the switching output",
test the desired switching status
Analog output does not
reach full/correct output
current
Incorrect setting of the
signal form
In the submenu
aOUx
:
Check and if necessary set signal form
(current/voltage output) correctly
Load too high
(current output)
Reduce load to admissible value
Analog output does not
change the output
signal with changed input
signal
Incorrect configuration
of the analog output
In the submenu
caNx
:
"Testing the analog output",
ensure normal operation
