Hanna Instruments hi 955501 User Manual

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OPERATIONAL GUIDE
INITIAL PREPARATION
Slide the battery cover off
the rear of your thermom-
eter.
Remove the battery and un-
wrap it prior to connection to
the battery connector. Insert
the 9V battery and replace
the cover.
To switch on, press the ON/
OFF key on the front of the
unit.
If a temperature probe is
plugged in, the unit will dis-
play the temperature.
If not plugged in, the display
will show "
-1.
".
To switch your thermometer off, press the
ON/OFF key again.
MEASUREMENT RESOLUTION
When switched on, the instrument defaults
to the last selected resolution.
To change the resolution
press RANGE.
The instrument automatically
changes its resolution to 1
degree when it passes the
limit of the lower range
(±200°C).
9 VOLT BATTERY
SLIDE OFF
Battery
Compartment
ON
OFF
°C
RANGE
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LOW BATTERY DETECTION
When the battery is low the
user is prompted by the ap-
pearance of the "V" symbol
to replace the battery.
V
DISPLAY CODE GUIDE
Display
Description
-1.
The probe is not connected to the instrument or
the reading is out of range
V
Weak battery, needs to be replaced
°C
The instrument is reading in the Centigrade
scale
All Hanna Instruments thermometers have
been accurately pre-calibrated at the fac-
tory.
It is generally recommended to have all
thermometers recalibrated at least once a
year.
For an accurate annual recalibration, con-
tact your nearest Hanna Service Center.
CALIBRATION