User Guide

PRELIMINARY EXAMINATION
Remove the instrument from the packing
material and examine it to make sure that
no damage has occurred during shipping. If
there is any damage, notify your Dealer.
Note: Save all packing material until you
are sure that the instrument func-
tions correctly. All defective items
must be returned in the original pack-
ing with the supplied accessories.
GENERAL DESCRIPTION
HI 8564 and HI 93640 portable Thermo-Hy-
grometers measure both Temperature and
Relative Humidity.
HI93640 is a compact, easy to carry meter
with a convenient wrist-wrap. The built-in
thin film capacitance sensor assures accu-
rate humidity measurements from 5.0 to
95.0% RH with a resolution of 0.1%.
The RH probe contains both the sensor and
the electronic circuitry necessary to amplify
the RH as well as the temperature read-
ings. Another electronic circuit converts the
amplified signal into a digital readout in %
Relative Humidity.
Note: The RH probe sensor must never
come into contact with water or
other liquids.
HI8564 comes supplied with: HI70601/2,
detachable relative Humidity probe and a
9V battery.
HI93640 comes supplied with a 9V battery.
1
Dear Customer,
Thank you for choosing a Hanna Instruments
Product.
Please read this instruction manual carefully
before using the instrument.
This manual will provide you with all the
necessary information for the correct use of
the instrument, as well as a precise idea of its
versatility in a wide range of applications.
These instruments are in compliance with
directives.
Preliminary Examination ........................... 1
General Description .................................. 1
Functional Description of HI 8564 ............. 2
Functional Description of HI 93640 ........... 3
Specifications of HI 8564 .......................... 4
Specifications of HI 93640 ........................ 5
Operational Guide ..................................... 6
Calibration ................................................. 8
Battery Replacement .............................. 12
Shockproof Rubber Boots ....................... 13
Accessories ............................................ 14
Warranty ................................................. 15
CE Declaration of Conformity ................. 17
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