User manual

H60.0.11.6C-16 Operating Manual GMH 3830 Page 11 of 18
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9 Fault and System Messages
Display
Meaning
Remedy
Blinking curve display: Displayed value is out of
specified range (Wood: 8..40%u)
Limited measuring precision!
The display value is only usable as indication,
not as measurement!
low battery voltage, device will continue to work for
a short time
replace battery
If mains operation: wrong voltage
replace power supply, if fault continues to
exist: device damaged
low battery voltage
replace battery
If mains operation: wrong voltage
Check/replace power supply, if fault continues
to exist: device damaged
No display
or
weird display
Device does not
react on keys
low battery voltage
replace battery
If mains operation: wrong voltage
Check/replace power supply, if fault continues
to exist: device damaged
system error
Disconnect battery or power supply, wait
some time, re-connect
device defective
return to manufacturer for repair
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Sensor error: no material connected (meas. Value
below permissible range), no valid signal
Connect meas. material
charge at the probe, device will discharge (esp. at
dry wood)
Wait until probe has discharged
Sensor broken or device defective
return to manufacturer for repair
Err.1
Value exceeding measuring range
Check: Is the value exceeding the measuring
range specified? ->temperature too high!
Wrong probe connected
Check probe
Probe or device defective
return to manufacturer for repair
Non-floating probe near the unshielded electrode
Insulate probe or measure at shielded
electrode
Err.2
Value below display range
Check: Is the value below the measuring
range specified? -> temperature too low!
Wrong probe connected
Check probe
Probe, cable or device defective
return to manufacturer for repair
Err.7
system error
return to manufacturer for repair
10 Inspection oft the accuracy / Adjustment Services
Accuracy can be inspected with the testing adapter GPAD 38 (extra equipment).
To check precision select material characteristic curve “.rEF”, choose display „%u“ and connect the testing adapter. The
device must display the printed value for the GMH38xx. If the precision is bad, we suggest to send the device to the
manufacturer for a new adjustment.
11 Measuring precision
 Frozen wood cannot be measured!
 The measuring needles have to be fixed very well e.g. by means of a wrench
Loose needles can disturb the measuring