8 | Error and system messages
G 1501
30 / 37
B-H86.0.12.DB2-2.1
8
Error and system messages
Display
Meaning
Possible
causes
Remedy
SENS ERRO
Sensor cable defect
Sensor or probe
defect
Measuring range
exceeded or under-
cut
Cable breakage
Defective sensor or
probe
Measurement out-
side of the measur-
ing range
Send in for repair
Send in for repair
>
(AL
<
Error during the last
calibration
Faulty calibration
Conduct a new calibration
No display,
unclear
characters or
no response
when but-
tons are
pressed
Battery depleted
System error
Product is defective
Battery depleted
Error in the product
Product is defective
Replace battery
Send in for repair
BAT
Battery depleted
Battery depleted
Replace battery
BAT LO
Battery depleted
Battery depleted
Replace battery
(AL ERR.1
Neutral buffer not
allowed
Incorrect buffer solu-
tion used
Buffer solution is
contaminated
Electrode contami-
nated or defective
Use fresh buffer solution
Clean electrode, re-calibrate
Replace electrode
(AL ERR.2
Slope is too low
Incorrect buffer solu-
tion used
Buffer solution is
contaminated
Electrode contami-
nated or defective
Use fresh buffer solution
Clean electrode, re-calibrate
Replace electrode
(AL ERR.3
Slope is too high
Incorrect buffer solu-
tion used
Buffer solution is
contaminated
Electrode contami-
nated or defective
Use fresh buffer solution
Clean electrode, re-calibrate
Replace electrode
(AL ERR.4
Incorrect calibration
temperature
Temperature too low
or too high
Range of 0..60 °C
(AL ERR.5
Time exceeded dur-
ing automatic cali-
bration
Unstable electrode
signal
Buffer solution is
contaminated
Stirring of the buffer solution
Clean the electrode
Use fresh buffer solution
Restart calibration
