13
CALIBRATION
All Hanna Instruments thermometers have been
accurately pre-calibrated at the factory.
It is generally recommended to have all ther-
mometers recalibrated at least once a year.
For an accurate annual recalibration, contact
your nearest Hanna Service Center.
Hanna Test Plugs
provide a quick and easy
way to test the meter's accuracy by simply
connecting these Test Plugs to the probe
connector of the meter. If the reading differs
by more than 0.4°C (0.8°F) from the Test
Plug value, the unit is due for recalibration.
Choose the right Test Plug to suit your needs:
For
HI 9060
and
HI 9061
:
HI 765-18C
Calibration key,-18.0°C ±0.4°C
HI765000C
Calibration key, 0.0°C ±0.4°C
HI765070C
Calibration key,+70.0°C±0.4°C
HI765-004F
Calibration key, -0.4°F ±0.8°F
HI765032F
Calibration key,+32.0°F ±0.8°F
HI765158F
Calibration key,+158.0°F±0.8°F
For
HI 91541
:
HI 764-18C
Calibration key,-18.0°C ±0.4°C
HI764000C
Calibration key, 0.0°C ±0.4°C
HI764070C
Calibration key,+70.0°C±0.4°C
HI764-004F
Calibration key, -0.4°F ±0.8°F
HI764032F
Calibration key,+32.0°F ±0.8°F
HI764158F
Calibration key,+158.0°F±0.8°F
