User Guide

Instruction Manual
HI 99550 - HI 99551
Infrared
Thermometers
http://www.hannainst.com
This instrument is in
Compliance with the CE Directives
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
WARRANTY
HI 99550 and HI 99551 are warranted for two years
against
defects in workmanship and materials when used for its intended pur-
pose and maintained according to instructions.
This warranty is limited to repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed
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 pur-
chase, 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 instrument is to be returned to Hanna Instruments, first obtain a
Returned Goods Authorization Number from the Customer Service de-
partment and then send it with shipment costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protec-
To validate your warranty, fill out and return the enclosed warranty card
within 14 days from the date of purchase.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instru-
ments Inc., Woonsocket, Rhode Island, 02895 , USA.
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for the correct
operation of the meter. Please read it carefully before using
the meter. If you need additional technical information, do
not hesitate to e-mail us at [e-mail].
This instrument is in compliance with directives.
Remove the instrument from the packing material and
examine it carefully to make sure that no damage has
occurred during shipment. If there is any damage, notify
your Dealer.
The instrument is supplied complete with
• 9V Battery
• Instruction manual
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
PRELIMINARY EXAMINATION
FUNCTIONAL DESCRIPTION
SPECIFICATIONS
HI 99550-00 HI 99550-01
HI 99551-00 HI 99551-01 HI99551-10
Range -10 to 300 °C 14 to 572 °F -20.0 to199.9°C
Resolution 1 °C 1 °F 0.1°C
Accuracy ±2% of reading
(@ 20°C/68°F) or ±2°C/±3°F
Typical EMC Deviation ±2 °C/±4 °F
Emissivity 0.95 (fixed)
Wave length 6 to 14 µm
Typical response time 1 second
Optic coefficient 3 : 1
(ratio of distance to diameter of target)
Battery type 1 x 9V
Environement 0 to 50 °C (32 to 122 °F)
0 to 95% RH non-condensing
Dimensions 143 x 80 x 38 mm (5.6x3.2x1.5”)
Weight 320 g (11.3 oz.)
1. Infrared sensor
2. Liquid Crystal Display (LCD)
3. ON/OFF and hold button
4. Wrist-strap
GENERAL DESCRIPTION
Infrared radiation emitted from any object depends on its
temperature.
HI 99550 and HI 99551 are thermometers based on the
infrared radiation technology.
The most evident advantage of infrared thermometry is the
non contact nature of measurement.
With HI 99550 and HI 99551, the temperature measure-
ment is simple: simply aim the thermometer at the object
and then press and hold down the ON/OFF button.
These instruments are equipped with a “HOLD” function,
which freezes the display, making it easy for the user to
read the measurement.
The different models are:
HI 99550-00 measures in Celsius,
HI 99551-00 measures in Celsius,
HI 99550-01 measures in Fahrenheit,
HI 99551-01 measures in Fahrenheit,
HI 99551-10 measures in Celsius.
The thermometers also provide for a low battery indication.