Hanna Instruments HI93501 Instruction Manual page 9

CALIBRATION CHECK
All the models are provided with
automatic Cal-Check feature at start-
up, which allows the user to check
the instrument calibration status.
If the meter is calibrated, the display
will stabilize and show "0.0 °C"
(±0.3 °C) in a few seconds.
WARNING MESSAGES
NO PROBE message
If the probe is not connected or is interrupted and "NO PROBE"
message is displayed.
HI93501
HI935001 and HI935007
HI935004 and HI935008
9