Hanna Instruments HI 93640 User Manual

Instruction Manual

HI93640N

Portable

Thermohygrometer

www.hannainst.com

1

PRELIMINARY EXAMINATION

Dear Customer,
Thank you for choosing a HANNA product.
Please read this instruction manual carefully

before using the instrument.
For additional technical information, do not

hesitate to e-mail us at [e-mail]
This instrument is in compliance with the

directives.

TABLE OF CONTENTS

PRELIMINARY EXAMINATION................... 3

GENERAL DESCRIPTION ......................... 3

FUNCTIONAL DESCRIPTION..................... 4

SPECIFICATIONS...................................... 5

OPERATIONAL GUIDE .............................. 6

BATTERY REPLACEMENT ....................... 7

ERROR MESSAGES................................. 8

FACTORY RECALIBRATION ..................... 8

ACCESSORIES ......................................... 8

WARRANTY .............................................. 9

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.

HI93640N is supplied complete with probe
sintered cap, batteries (3 x 1.5V AA) and
instructions.

Note: Save all packing material until you

are sure that the instrument functions
correctly. All defective items must be
returned in the original packing with
the supplied accessories.

GENERAL DESCRIPTION

HI93640N portable thermohygrometer provides

reading with high precision and quick response
time for both RH (Relative Humidity) and tem­perature.

HI93640N is a compact, portable and versa­tile instrument to monitor relative humidity
anywhere.

The built-in thin-film capacitance sensor as­sures accurate measurements from 10 to 95%
RH with a resolution of 0.1%.

Note: The RH probe sensor must never

come into contact with water or
other liquids.

2 3

FUNCTIONAL DESCRIPTION

SPECIFICATIONS

Range 10.0 to 95.0 % RH

0.0 to 60.0°C / 32.0 to 140.0°C

Resolution 0.1 % RH

0.1°C / 0.1°F

Accuracy ±3 % RH (50 to 85 % RH)

±4 % RH (outside)

±0.5°C / ±1°F

Environment 0 to 60°C (32 to 140°F);

RH max 98% non-condensing

Battery Type / Life

3 x 1.5V AA / approx. 1000 hours of use

Dimensions 190 x 80 x 36 mm

(7.5 x 3.1 x 1.4’’)

Weight 250 g (8.8 oz.)

1 ) Detachable sintered cap

2) Built-in RH/temperature probe
3 ) Liquid Crystal Display (LCD)

4) ON/OFF key, to turn the meter ON and OFF

5) RANGE key, to switch between %RH and
temperature measurements

6) °C/°F key, to change the temperature mea­sure unit

4 5

OPERATIONAL GUIDE BATTERY REPLACEMENT

Turn the meter on by pressing the ON/OFF
button.

At start-up the instrument displays all LCD
segments for a few seconds, then it shows

the current RH (Relative Humidity) mea­surements.

The humidity sensor should be exposed to a
current of air moving at 0.5 m (20") per sec­ond or more.

In the absence of air movement, the response
can be accelerated by moving the probe.

The probe sensor must never come into
contact with water or other liquids.

If this happens, or if condensation causes drops
to form on the surface of the humidity sensor,
turn the instrument off and wait until the liquid
has evaporated completely. In order to acceler­ate the evaporation process, expose the humid­ity sensor to a current of air.

For a faster response, remove the sintered
cap. Whenever the probe is to be used in a
dusty or smoky environment, the cap must
be kept on at all times.

To take temperature measurements, press
the RANGE button to display the temperature
mode, then select the °C or °F measure unit with
the °C/°F button.

When the battery level is below 10%, the
battery symbol blinks on the LCD to warn the
user.
If the battery level is too low to ensure proper
operations, the Battery Error Prevention Sys­tem (BEPS) turns the meter off. Immediately
replace the batteries with new ones.
Batteries are accessed by separating the
front and the back halves of the meter: un­screw the 4 screws on the back of the meter
and carefully replace the three batteries, while
paying attention to their polarity.

Reattach the back making sure that the gas­ket is in place and tighten the 4 screws to
ensure a watertight seal.
Battery replacement must only take place in
a safe area and using 1.5V AA alkaline bat­teries.

The meter is provided with an acoustic signal
feature activated when buttons are pressed,
which can be disabled using a switch located
in the battery compartment (see figure on next
page).

6 7

ERROR MESSAGES

WARRANTY

• Blinking values denote indicative readings.
This will occur for the RH display if the
measured temperature is less than 0°C or
greater than 60°C.

• A blinking full scale value means that the
reading is out of range.

Error in temperature measure­ment: reading is extremely over
range or sensor is damaged.

Error in RH measurement: the
sensor is wet or damaged.

FACTORY RECALIBRATION

All HANNA instruments® thermohygrometers
have been precalibrated at the factory, using
thermal humidity chambers.

It is generally recommended to have all
thermohygrometers recalibrated at least once
a year.

For an accurate annual recalibration, contact
your dealer or the nearest Hanna Service
Center.

All Hanna Instruments meters are warranted
for two years against defects in workman­ship and materials when used for their in­tended purpose and maintained according to
the instructions.

Damages due to accidents, misuse, tamper­ing or lack of prescribed maintenance are not
covered.

This warranty is limited to repair or replace­ment free of charge.

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 charge for repair or
replacement.

If the instrument is to be returned to Hanna
Instruments, obtain a Return Goods Authori­zation from the Customer Service Department
first and then send it with shipment cost
prepaid.

When shipping any instrument, make sure it
is properly packaged for complete protection.

ACCESSORIES

HI 710007 Blue shockproof rubber boot
HI 710008 Orange shockproof rubber boot
HI 710011 Probe sintered cap
HI 710031 Rugged carrying case

8 9

Hanna Instruments reserves the right to modify the

design, construction and appearance of its

products without advance notice.

Recommendations for Users

Before using this product, make sure that it is
entirely suitable for the environment in which it is
used.

Operation of this instrument in residential area
could cause unacceptable interferences to radio
and TV equipments, requiring the operator to take
all necessary steps to correct interferences.

Any variation introduced by the user to the supplied
equipment may degrade the instrument's EMC
performance.

To avoid electrical shock, do not use these instru­ments when voltages at the measurement surface
exceed 24 Vac or 60 Vdc.

To avoid damages or burns, do not perform any
measurement in microwave ovens.

10 11

SALES & TECHNICAL SERVICE

Australia:

Tel. [phone] • Fax [phone]

China:

Tel. [phone] • Fax [phone]

Egypt:

Tel. & Fax [phone]

Germany:

Tel. [phone] • Fax [phone]

Greece:

Tel. [phone] • Fax [phone]

Indonesia:

Tel. [phone] • Fax [phone]

Japan:

Tel. [phone] • Fax [phone]

Korea:

Tel. [phone] • Fax [phone]

Malaysia:

Tel. [phone] • Fax [phone]

Singapore:

Tel. [phone] • Fax [phone]

South Africa:

Tel. [phone] • Fax [phone]

Taiwan:

Tel. [phone] • Fax [phone]

Thailand:

Tel. [phone] • Fax [phone]

United Kingdom:

Tel. [phone] • Fax [phone]

USA:

Tel. [phone] • Fax [phone]

For e-mail contacts and complete list of Sales and
Technical offices, please see www.hannainst.com

12

MAN93640N 11/05