Error And System Messages - JUMO 202710 Operating Instructions Manual

6 Error and system messages

Error or Cause
system
message
General:
Low battery voltage.
Functionality can only be ensured
for a short time.
Low battery voltage.
Operating from electrical supply:
wrong voltage.
No display Low battery voltage.
or Operating from electrical supply:
crazy power supply is faulty or wrong
characters voltage/polarity.
Instrument error or fault.
Gone beyond the measurement
range. Defect in combination
electrode, temperature sensor or
connecting cable.
Gone below measurement range.
Defect in combination electrode,
temperature sensor or cable.
Instrument error.
Only for temperature measurement (thEr)
No temperature sensor
connected.
Temperature sensor is faulty.
Value could not be
calculated.
Only for pH measurement:
24
Remedy
Fit a new battery.
Fit a new battery.
Check power supply and replace if
necessary.
If the error persists, then the hand-held meter
is faulty.
Fit a new battery.
Check power supply and replace if
necessary.
Remove battery or power supply – wait for 5
seconds – reconnect.
If the error persists, then the hand-held meter
is faulty.
Check combination electrode, temperature
sensor and connecting cable, and replace if
necessary.
Check combination electrode, temperature
sensor and connecting cable, and replace if
necessary.
Switch off the hand-held meter, and switch
on again after 5 seconds.
If the error persists, then the hand-held meter
is faulty.
Connect/replace the temperature sensor.
Outside the permissible temperature
compensation range (0 to 105°C) or outside
the permissible measurement range (Err.1 or
Err.2).