Instruction Manual
HI 99551 • HI 99556
Infrared Thermometers
for the Food Industry
w w w . h a n n a i n s t . c o m
WARRANTY
HI 99551 and HI 99556 are warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. Probes are guaranteed for a period of six months.
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 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 instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid.
When shipping any instrument, make sure it is properly packaged for complete protection.
All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner.
Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
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.
If you need additional technical information, do not hesitate
to e-mail us at |
tech@hannainst.com. |
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These instruments |
are in compliance with the |
directives. |
PRELIMINARY EXAMINATION
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.
Each meter is supplied complete with:
•HI 765PW temperature probe (HI 99556 only)
•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.
GENERAL DESCRIPTION
HI 99551 and HI 99556 thermometers employ infrared technology to measure the surface temperature.
Infrared measurements are extremely practical with a fast response time, typically around 1 second.
Another main advantage is the non-intrusive nature of the measurement, which is particularly attractive in the food industry since it translates itself into substantial savings by leaving products intact, especially those sealed or pre-wrapped. This type of non-intrusive measurement is also useful when the surface temperature is high, for difficult-to-reach places or due to hygiene requirements.
Simply point to the product or the spot and hold down the measurement key. The measured value will be immediately displayed on the LCD.
If in addition to surface measurement, you must check the core temperature too, then HI 99556 is the ideal solution: simply attach the external probe to the meter and you will have a 2-in- 1 infrared-thermistor thermometer.
Different models are available, with different temperature ranges.
FUNCTIONAL DESCRIPTION
1.Infrared sensor
2.Temperature probe connector (HI 99556 only)
3.Liquid Crystal Display (LCD)
4.ON/OFF button
5.IR/CONTACT button to select infrared sensor or external probe (HI 99556 only)
6.Wrist-strap
SPECIFICATIONS
HI 99551-00 |
HI 99551-01 |
HI 99551-10 |
HI 99556-00 |
HI 99556-01 |
HI 99556-10 |
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Range IR Sensor |
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-10 to 300°C |
14 to 572°F |
-20 to 199.9°C |
Range Probe (HI 99556 only) |
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-40 a 150°C |
-40 a 302°F |
-40 to 150.0°C |
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Resolution IR Sensor |
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1°C |
1°F |
0.1°C |
Resolutio Probe (HI 99556 only) |
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0.1°C |
1°F |
0.1°C |
Accuracy IR Sensor
±2% of reading or ±2°C (-00 and -10 models); ±2% of reading or ±3°F (-01 models)
Accuracy Probe (HI 99556 only)
±0.5°C (-20 to 120°C) /±1°F (0 to 250°F); ±0.5°C / ±1°F +1% reading (outside)
Typical EMC Deviation IR Sensor |
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±1°C |
±2°F |
±1°C |
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Typical EMC Deviation Probe (HI 99556 only) |
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±0.5°C |
±1°F |
±0.5 °C |
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IR Sensor |
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Response Time |
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1 second |
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Optic Coefficient 3:1 (distance/target diameter) |
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Minimum Distance |
30 mm (1.2’’) |
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Emissivity |
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0.95 (fixed) |
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Wave Length |
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6 a 14 µm |
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Probe |
HI 765PW (included) (HI 99556 only) |
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Battery Type |
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1 x 9V alkaline (IEC 6LR61) |
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Battery Life |
approx. 150 hours of continuous use |
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Environment |
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0 to 50°C (32 to 122°F); |
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RH max 95% |
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Dimensions 143 x 80 x 38 mm (5.6 x 3.2 x 1.5”)
Weight |
320 g (11.3 oz.) |
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