User Guide
ACCESSORIES
OPERATIONAL GUIDE
Remove the battery cover on the back of the thermometer.
Unwrap the supplied 9V battery, connect it to the battery
clip and reattach the cover.
Connect the temperature probe to the connector on the top
of the meter.
To switch ON, turn the rotary
knob to the ºC or ºF position
(depending on the model).
The meter displays the percent-
age indication of the remaining
battery life for a few seconds, and
then enters measurement mode.
If a temperature probe is plugged in, the meter displays
the measured temperature either in °C (HI 8757) or °F (HI
8758), automatically switching to the resolution suitable to
the temperature range; i.e. 0.1° up to 199.9°C (399.9°F),
or 1° above.
If no probe is plugged in, or if
reading is over-range, the dis-
play shows flashing dashes.
If a measurement is slightly over the range of the meter
specifications, the display flashes the closest full-scale value.
To switch the thermometer OFF,
turn the rotary knob to OFF.
FACTORY RECALIBRATION
All Hanna thermometers have been accurately pre-cali-
brated at the factory. It is generally recommended to have
all thermometers recalibrated at least once a year.
For an accurate annual recalibration, contact your dealer or
the nearest Hanna Service Center.
BATTERY REPLACEMENT
The instrument is powered by a 9 V battery and is
provided with Battery Error Prevention System (BEPS),
which turns the unit off when a low battery signal is
detected.
When the battery level is less than
10%, a warning symbol blinks
on the display to indicate a low
battery condition.
It is recommended to replace the battery as soon as the low
battery condition is detected.
Remove the cover on the meter's back by applying pressure
in the indicated direction. Unplug the rundown battery
and replace it with a new one.
Battery replacement must only take place in a nonhazard-
ous area using a 9V alkaline battery.
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment in which
they are used.
Operation of these instruments in residential areas could cause unacceptable interference to radio
and TV equipment, requiring the operator to take all necessary steps to correct interference.
Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC
performance.
To avoid electrical shock, do not use these instruments when voltage at the measurement surface
exceeds 24VAC or 60VDC.
To avoid damage or burns, do not perform any measurement in microwave ovens.
CE DECLARATION OF CONFORMITY
K-TYPE THERMOCOUPLE PROBES
with integral handle, 1 m (3.3’) cable & mini-connector:
HI 766A Roller surface probe, max 320°C/600°F
HI 766B Surface probe, max 650°C/1200°F
HI 766B1 90º Surface probe, max 450°C/840°F
HI 766B2 Spring-loaded, surface probe, max
900°C/1650°F
HI 766B3 Spring-loaded, small surface probe with
insulated shaft, max 200°C/390°F
HI 766C Penetration probe, max 900°C/1650°F
HI 766C1 Ultra-fast Penetration probe, max 300°C/
570°F
HI 766D Air probe, max 300°C/570°F
HI 766E1 General purpose probe, max 900°C/1650°F
HI 766E2 General purpose probe, max 900°C/1650°F
HI 766F High temperature, flexible wire probe
without handle, max 1100°C/2000°F
HI 766F1 Flexible wire probe without handle, max
480°C/ 900°F
HI 766TR1 Penetration probe, max 250°C/482°F
HI 766TR2 Penetration long probe, max 250°C/482°F
HI 766TV1 Pipe clamp probe, max 200°C/390°F
with detachable handle & mini-connector (to be used
in conjunction with the HI 766HD probe handle):
HI 766PA Roller surface probe, max 320°C/600°F
HI 766PB Surface probe, max 650°C/1200°F
HI 766PC Penetration probe, max 900°C/1650°F
HI 766PD Air probe, max 300°C/570°F
HI 766PE1 General purpose probe, max 900°C/1650°F
HI 766PE2 General purpose probe, max 900°C/1650°F
grill surface probe:
HI 766B4 Grill surface probe with 70 cm (27.6’’)
cable (protected with stainless steel jacket),
max 250°C/482°F
HI 7664B4S Spare stainless steel sensor for HI766B4 probe
OTHER ACCESSORIES
HI 710002 Soft carrying case
HI 710009/10 Blue/Orange rubber boot
HI 710031 Hard carrying case
HI 721310 9V Battery (10 pcs)
HI 766EX Extension cable for K-type probes
HI 766HD Rugged thermocouple probe handle with
1m (3.3') cable fitted with mini-connector
ACCESSORIES
ISTR8757 01/03