OPERATIONS
For accurate measurements with
the HYGROCHECK®, please pro-
ceed as explained below.
• The end of the humidity sensor
should be exposed to an air
current moving at 0.5 m (20")
per second or more.
• In the absence of air movement,
the response can be acceler-
ated by moving the probe.
• The RH sensor must never
come into contact with water or
other liquids. If this should hap-
pen, or if condensation causes
drops to form on the sensor
surface, turn off the instrument
and expose it to an air current
to dry the sensor.
BATTERY REPLACEMENT
To access the battery compart-
ment, slide off the cover. When
replacing the batteries, pay atten-
tion to the correct polarity and use
only the battery type specified in
these instructions.
TECHNICAL SERVICE
The HYGROCHECK® is factory cali-
brated with reference to NIST cer-
tified instruments.
For an accurate recalibration of
your meter or if you need addi-
tional technical information, con-
tact your dealer or the nearest
Hanna Service Center.
For e-mail contacts and complete
list of Sales and Technical offices,
please see www.hannainst.com
PRELIMINARY EXAMINATION
The meter is supplied with bat-
teries, soft carrying case and in-
structions.
GENERAL DESCRIPTION
The HYGROCHECK®is a light-
weight, pocket-sized meter de-
signed for on-the-spot testing of
Relative Humidity.
The HYGROCHECK®uses the ad-
vanced TFPC (Thin Film Polymer
Capacitance) sensing method to
measure humidity and an inte-
grated electronic circuit to per-
form all relative conversions. This
method of Relative Humidity
measurement assures a quick
and accurate reading.
The housing is constructed of
durable ABS material and the
LCD is protected behind a trans-
parent plastic cover.
Also, a vented cap protects the
sensor while allowing maximum
airflow for rapid response.
WARRANTY
This meter is guaranteed for one year
against defects in workmanship and mate-
rials when used for their intended purpose
and maintained according to instructions.
This warranty is limited to repair or re-
placement free of charge. Damages due to
accident, misuse, tampering or lack of pre-
scribed maintenance are not covered. If
service is required, contact the dealer from
whom you purchased the instrument. If
under warranty, report the model number,
date of purchase, serial number and the
nature of the failure. If the repair is not
covered by the warranty, you will be
notified of the charges incurred. If the instru-
ment is to be returned to Hanna Instruments,
first obtain a Returned Goods Authorization
Number from the Customer Service depart-
ment and then send it with shipment costs
prepaid. When shipping any instrument,
make sure it is properly packaged for com-
plete protection.
