Troubleshooting Guide - Hanna Instruments HI98192 Instruction Manual

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