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WARRANTY
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for correct opera-
tion. Please read it carefully before using the meter. If you
need additional technical information, do not hesitate to e-
mail us at tech@hannainst.com.
These instruments are in compliance with the CE directives.
PRELIMINARY EXAMINATION
GENERAL DESCRIPTION
FUNCTIONAL DESCRIPTION SPECIFICATIONS
Instruction Manual
HI 8757 - HI 8758
Portable Microprocessor
K-Type Thermocouple
Thermometers
All Hanna Instruments meters are warranted for two years against de-
fects in workmanship and materials when used for their intended purpose
and maintained according to instructions.
Sensors and probes are warranted for a period of six months.
This warranty is limited to repair or replacement free of charge. Damages
due to accidents, misuse, tampering or lack of prescribed maintenance are
not covered.
If service is required, contact the dealer from whom you purchased the instru-
ment. If under warranty, report the model number, date of purchase, serial
number and the nature of the failure.
First obtain a Returned Goods Authorization number from the Customer Ser-
vice department, then return the instrument with the Authorization # included
along with shipment costs prepaid. If the repair is not covered by the war-
ranty, you will be notified of the charges.
When shipping any instrument, make sure it is properly packaged for com-
plete protection.
Remove the instrument from the packing material and exam-
ine it carefully to make sure that no damage has occurred
during shipping. If there is any noticeable damage, notify
your Dealer or the nearest Hanna Office.
Note: Save all packing materials until you are sure that the
instrument functions correctly. Any defective item must
be returned in the original packaging together with
1) LCD display
2) Rotary switch
3) OFF mode
4) Measurement mode
HI 8757
HI 8758
HI 8757 and HI 8758 are Hanna microprocessor-based, K-
type thermocouple thermometers specially dedicated to education.
These meters perform measurements either in °C (HI 8757) or
°F (HI 8758) in a wide range of temperature; readings are
linearized for increased accuracy, and resolution is automati-
cally switched from 0.1° to 1° for temperatures above 200°C
(400°F).
These thermometers are also provided with battery level
indication at start-up, and with the BEPS feature (Battery
Error Prevention System), which automatically switches the
instrument off when the battery is discharged to avoid
erroneous readings due to low battery level.
Each meter comes complete with a 9V battery and instruction
manual.
(*) Range may be limited by probe.
(*) Range may be limited by probe.
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
SPECIFICATIONS
Range (*)
Resolution
(Autoranging)
Accuracy
(@20°C/68°F)
Typical EMC
Deviation
Battery Type
Life
Probe
Environment
Dimensions
Weight
HI 8757
-50.0 to 199.9°C / 200 to 1350°C
0.1°C (-50.0 to 199.9°C)
1°C (200 to 1350°C)
±0.5% F.S.
for 1 year, excluding probe error
±0.5ºC
with HI766 K-thermocouple probe
1 x 9V (IEC 6LR61) battery
approx. 500 hours of continuous use
K-type thermocouple (see “Accessories”)
-10 to 50ºC (14 to 122ºF);
RH max 95% non-condensing
180 x 83 x 40 mm (7.1x3.3x1.6")
226 g (8 oz.)
HI 8758
-58.0 to 399.9°F / 400 to 2462°F
0.1°F (-58.0 to 399.9°F)
1°F (400 to 2462°F)
±0.5% F.S.
for 1 year, excluding probe error
±1ºF
with HI766 K-thermocouple probe
1 x 9V (IEC 6LR61) battery
approx. 500 hours of continuous use
K-type thermocouple (see “Accessories”)
-10 to 50ºC (14 to 122ºF);
RH max 95% non-condensing
180 x 83 x 40 mm (7.1x3.3x1.6")
226 g (8 oz.)
SPECIFICATIONS
Range (*)
Resolution
(Autoranging)
Accuracy
(@20°C/68°F)
Typical EMC
Deviation
Battery Type
Life
Probe
Environment
Dimensions
Weight