Hanna Instruments HI 99550-00 - Manual (Page 2)

OPERATIONAL GUIDE
Temperature Measurement
To obtain the temperature of
an object, simply aim the sen-
sor in the direction of the
object. Keep the “ON/OFF”
button pressed for a few sec-
onds until the reading
stabilizes.
The instrument will continue
reading the temperature,
while the “ON/OFF” button is
pressed. When released, the
instrument freezes the read-
ing for a few seconds and
then switches off automati-
cally.
Reading Distance
The distance between the sensor and the object is an
important factor in the infrared measurement.
The relation between “distance/object area” of the instrument
is 3:1. This means that the diameter of the measured area is
one third of the distance between the sensor and the object.
For example, if the sensor is 15 cm away from the object, the
instrument measures the temperature of an area with a 5 cm
diameter.
Emissivity
The instrument measures the temperature of objects with an
emissivity of 0.95, which is the characteristic of most sub-
stances such as organic material, water, plastic, fabrics, etc.
BATTERY REPLACEMENT
Battery replacement must only take place in a safe area and
using a 9V alkaline battery.
Simply slide off the battery cover on the back of the meter,
detach the battery from the terminals and attach a new 9V
battery, while paying attention to the correct polarity.
Replace the battery cover.
CE DECLARATION OF CONFORMITY
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment
in which they are used.
Operation of these instruments 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 instruments'
EMC performance.
To avoid damages or burns, do not perform any measurement in microwave ovens.
To measure substances that have a polished surface and are
very reflective, the emissivity needs to be compensated.
It is advisable to cover the object with black paint or black
adhesive tape to compensate for the reflectivity.
Precaution
To avoid damage, do not hold the sensor too close to a heat
source, for a long period.
Sensor Cleaning
To maintain the instrument’s accuracy, it is important that
the sensor lens is kept clean.
To clean the sensor gently pass a humid and non-abrasive
cloth (HI 731318) on the lens.
Low Battery
A blinking “V” on the
display indicates a low
battery level.
It is recommended to replace the battery soon.
SALES & TECHNICAL SERVICE CONTACTS
Australia
Tel. (03) 9769.0666 • Fax (03) 9769.0699
China
Tel. (10) 88570068 • Fax (10) 88570060
Egypt
Tel. & Fax (02) 2758.683
Germany
Tel. (07851) 9129-0 • Fax (07851) 9129-99
Greece
Tel. (210) 823.5192 • Fax (210) 884.0210
Indonesia
Tel. (21) 4584.2941 • Fax (21) 4584.2942
Japan
Tel. (03) 3258.9565 • Fax (03) 3258.9567
Korea
Tel. (02) 2278.5147 • Fax (02) 2264.1729
Malaysia
Tel. (603) 5638.9940 • Fax (603) 5638.9829
Singapore
Tel. 6296.7118 • Fax 6291.6906
South Africa
Tel. (011) 615.6076 • Fax (011) 615.8582
Taiwan
Tel. 886.2.2739.3014 • Fax
886.2.2739.2983
Thailand
Tel. 66.2619.0708 • Fax 66.2619.0061
United Kingdom
Tel. (01525) 850.855 • Fax (01525) 853.668
USA
Tel. (401) 765.7500 • Fax (401) 765.7575
For e-mail contacts and complete list of Sales
and Technical offices, please see
www.hannainst.com