64
TROUBLESHOOTING GUIDE
SYMPTOMS PROBLEM SOLUTION
Reading fluctuates up and
down (noise).
EC probe not properly
connected.
Ensure the probe is connected
to the meter.
Check that the probe is
immersed in your sample.
Display shows the top of the
range reading blinking.
Reading out of range. Recalibrate the meter;
Check the sample is within the
measurable range.
Check the range is not fixed
or locked.
Meter fails to calibrate or
gives faulty readings.
Broken EC probe. Replace the probe.
At startup the meter displays
Hanna Logo tags
permanently.
One of the keys is blocked. Contact your dealer at any
Hanna Instruments Service
Center.
Meter shuts off. Dead accumulators, Auto
Power Off feature is enabled:
in this case, meter shuts off
after selected period of non
use.
Recharge accumulators or
replace accumulator.
Press ON/OFF.
“Error” message at start up. Internal error. Contact your dealer at any
Hanna Instruments Service
Center.
The instrument does not start
when pressing ON/OFF.
Initialization error. Press and hold down
ON/OFF for about 20 sec. or
disconnect and then connect
one accumulator.
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