Hanna Instruments hi 99550 Manual De Usuario
OPERATIONAL GUIDE
Temperature Measurement
To obtain the temperature
of an object, simply aim the
sensor in the direction of the
object. Keep the “ON/OFF”
button pressed for a few
seconds until the reading
stabilizes.
To obtain the temperature
of an object, simply aim the
sensor in the direction of the
object. Keep the “ON/OFF”
button pressed for a few
seconds until the reading
stabilizes.
The instrument will continue
reading the temperature,
while the “ON/OFF” button
is pressed. When released,
the instrument freezes the
reading for a few seconds
and then switches off auto-
matically to prolong the
battery life.
reading the temperature,
while the “ON/OFF” button
is pressed. When released,
the instrument freezes the
reading for a few seconds
and then switches off auto-
matically to prolong the
battery life.
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 instru-
ment is 3:1. This means that the diameter of the measured
area is one third of the distance between the sensor and the
object.
The distance between the sensor and the object is an
important factor in the infrared measurement.
The relation between “distance/object area” of the instru-
ment 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
5cm diameter.
the instrument measures the temperature of an area with a
5cm diameter.
BATTERY REPLACEMENT
Battery replacement must only take place in a non-hazard-
ous area 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 fresh
9V battery while paying attention to the correct polarity.
Replace the battery and the cover.
ous area 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 fresh
9V battery while paying attention to the correct polarity.
Replace the battery and the cover.
ACCESSORIES
HI 710004 Soft carrying case
HI 710007 Blue shockproof rubber boot
HI 710008 Orange shockproof rubber boot
HI 721316 Rugged carrying case
HI 731318 Wiping tissue (4 pcs)
HI 740016 Battery cover
HI 740029 9 V Battery
HI 740123 Wrist-strap
HI 710007 Blue shockproof rubber boot
HI 710008 Orange shockproof rubber boot
HI 721316 Rugged carrying case
HI 731318 Wiping tissue (4 pcs)
HI 740016 Battery cover
HI 740029 9 V Battery
HI 740123 Wrist-strap
CE DECLARATION
OF CONFORMITY
IS99550R2
01/00
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environ-
ment 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.
Before using these products, make sure that they are entirely suitable for the environ-
ment 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.
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.
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 tap to compensate for the reflectivity.
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.
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 tap to compensate for the reflectivity.
PRECAUTION
To avoid damage, do not hold the sensor too close to a
heat source, for a long period.
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.
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.
WEAK BATTERY
A blinking “V” on the display, indicates a weak battery. In
this case, replace the battery with a 9V alkaline one.
A blinking “V” on the display, indicates a weak battery. In
this case, replace the battery with a 9V alkaline one.