Operational Guide - Hanna Instruments HI99131 Instruction Manual

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
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
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 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.
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).
LCD check
up
→
Electrode
check
→
HI629113 probe to
button on
Battery life
→
Measurement
mode
9