User Guide

SHOCKPROOF RUBBER BOOTS
These rubber boots for HI93640 are specially
made to prolong the life of your meter and to
prevent damages due to accidental dropping.
This rubber boot measures 155 x 90 x 45 mm
(6.1 x 3.5 x 1.8") and is available in two
different colors:
HI710008 = orange
HI710007 = blue.
Select the proper color according to your
preference.
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HI93640
RH%
°F °C
°C
OFF
ON
THERMOHYGROMETER
RANGE:
RH% 5 to 95
°C 0 to 60
°F 32 to 140
BATTERY REPLACEMENT
Battery replacement must only take place in a
non hazardous area using the battery types
specified in this instruction manual (see
page 14).
FOR HI8564 ONLY:
When the battery is run down
"V" is displayed on the LCD to
warn the user.
In order to replace the bat-
tery, simply slide the cover
off and replace it with a new
9V battery.
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FOR HI93640 ONLY:
When the battery is rundown
"V" is displayed on the LCD to
warn the user.
HI 93640 employs the ad-
vanced "BEPS" technology.
BEPS will detect a low power
condition and will shut the dis-
play off. If the ON/OFF but-
ton is pressed again, the
meter will shut off after a few seconds.
When this occurs, replace the 9V battery
with a new one.
When the battery is exhausted or the instru-
ment cannot be switched on, simply slide
the battery cover off from the rear of the
instrument and replace with the 9V battery
with a new one.
BATTERY
HI 8564
SLIDE
OFF
HI 93640
9 VOLT BATTERY
9 VOLT BATTERY