7
OPERA
TIONAL GUIDE
OPERATIONAL GUIDE
Each meter is supplied with batteries. Before using the meter for the first time, open the battery
compartment and insert batteries, observing the polarity (see “Battery Replacement“).
CONNECTING THE ELECTRODE
With the meter turned off, connect the
HI12923
probe to the DIN socket on the bottom of the meter
by aligning the pins and pushing in the plug firmly. Remove the protective cap from the probe before
taking any measurements.
TURNING THE METER ON
To turn the meter ON, press the button on the front of the meter. If it does not turn on,
make sure that the batteries are properly installed in their place. The meter is provided
with an active acoustic signal that confirms when a key is pressed.
At start‑up the meter displays all
LCD segments for a few seconds, followed by the percentage indication of the remaining battery life,
displaying “
WAIT
” until electrode check is in process then the meter enters the normal measurement
mode.
Measurement
mode
Battery life
LCD
check up
→
→
→
Electrode
check
Note: The meter detects the presence and the type of the probe at its input.
- If the probe is not connected the message “
NO” ”PROBE
“ appears alternatively on the
secondary LCD with “
---
“ blinking on the first LCD line.
- If the probe is not compatible “
WRONG” ”PROBE
“ message appears alternatively on the
secondary LCD with “
---
“ blinking on the first LCD line.
- If the readings are out of range, the nearest range limits are displayed blinking (e.g. -2.00 pH
-5.0
°
C).
SELECTING MEASUREMENT VALUES
While in measurement mode, press the
SET
button to select pH or pH‑mV measurement on the first
LCD line.
