General Tools IRT2 User Manual
Congratulations on your purchase of the
Mannix Infrared Thermometer, model IRT2.
The compact size lets you get into tight places
while its convenient laser targeting and high
distance-to-spot ratio give you accurate
readings on distant targets .
• Precise non-contact measurements
• ˚F/˚C switch
• Data hold
• Laser target pointer
• The meter provides simple one hand operation and time saving temperature measurement. Be sure the measured object fills the
“spot” seen by the aperture.
• There will be a delay of approximately one
second between the time you initially press
the button and the time the display comes
on.
• Not recommended for measuring on shiny
surfaces. The smaller the target, the closer
the unit should be to it. To avoid thermal
shock, do not store the meter below
freezing.
• The meter is pre-set to measure objects
with an emissivity of 0.95. This will
accommodate the majority of items
measured without compensating for higher
or lower value. In most cases there will be
little difference in measurements, even if an
object’s emissivity is higher or lower than
this pre-set value. Compare and confirm
with known values if in doubt.
CAUTION
UNIT DESCRIPTION
! Use extreme caution when the laser beam is
turned on.
! Do not point the laser toward the eyes or face
of a person or animal. Laser’s potential to
cause damage is retained for hundreds of
feet.
! Be careful not to let the beam on a reflective
surface strike your eye.
! Do not use near any flammable items or
gases.
Measuring Range: -4 to 500˚F (-20 to 260˚C)
Resolution: 1˚F (1˚C)
Accuracy: ±3˚C or ±3%
(whichever is greater)
Accuracy Notes:
1) Accuracy stated is for ambient temperature
2) Accuracy stated is for emissivity of 0.95
Emissivity: 0.95 fixed
Distance Factor: D:S = Approx. 6:1
Sampling Rate: 1 second (approx.)
Display: LCD display with backlight
Power Off: Automatic shut off after 4 seconds
Operating Temp.: 32 to 122˚F (0 to 50˚C)
Operating Humidity: Maximum of 80% RH
Power Supply: 9-volt battery
Power Current: 10mA DC (approx.)
Display Size: 1.05” x 0.69”
Weight: 6.4 oz.
Dimensions: 6.3” x 2” x 1.3”
DISPLAY INDICATION
SPECIFICATIONS
1. Laser Icon
2. Digital Readout
3. ˚C (Celsius)
4. ˚F (Fahrenheit)
8.8.8
˚F
˚C
1
2
3
4
MEASUREMENT OPERATION
A. Power ON/OFF
The meter automatically powers up when the
measurement trigger is pulled. The meter
powers off automatically approximately 4 seconds after the measurement trigger is
released.
B.
LCD Backlight
Select backlight by first pulling the measurement trigger and then pressing the BACKLIGHT button. Repeat the procedure to turn
the backlight off.
C.
Laser Pointer
To turn the laser pointer on, first pull the
measurement trigger then press the LASER
button while continuing to pull the measurement trigger. Repeat the procedure to turn
the laser OFF
D
. Data Hold
The meter automatically hold the last temperature reading on the LCD for five seconds after
the trigger has been released. No additional
key presses are necessary to freeze the last
displayed reading.
E.
Measurement Considerations
While holding the meter, point the IR Sensor
toward the object whose temperature is to be
measured. The meter automatically compensates for temperature deviations from ambient
temperature.
Keep in mind that it will take up to 30 minutes
to adjust to wide ambient temperature
changes. When low temperatures are to be
measured followed by high temperature measurements, some time (several minutes) is
required after the low (and before the high)
temperature measurements are made. This is
a result of the cooling process which must take
place for the IR sensor.
BATTERY REPLACEMENT
To replace the battery open the Battery compartment on the bottom of the unit and remove
the battery, then install a new battery and
replace the cover.
TROUBLESHOOTING
? Meter does not turn on - Check voltage and
relace low battery. Or check time delay
which is allowed 1 second for data to
appear on-screen.
? Data flashing or laser comes on but no
data appears - Check battery voltage and
then replace low battery.
? Dashes appear on-screen - Check extreme
temperature, measure surrounding area to
see if the target exceeds the limit.
MAINTENANCE
Case cleaning:
Clean the exterior housing of the unit with a
damp cloth (use caution). Ensure no water or
soap is allowed inside the meter or on the
infrared lens.
Lens c
leaning:
WARNING: We recommend cleaning the lens
periodically to ensure the reading accuracy. To
remove any particles on the lens use low pressure compressed. If the contamination cannot
be removed with air, use a soft cotton swab.
The swab should be slightly damp and very
light pressure should be applied. Do not use
solvents to clean the lens.
1 2 3 4 5 6
1. LCD display
2. ˚F/˚C button
3. Laser button
4. IR sensor
5. Laser pointer beam
6. Backlight button
7. Measurement trigger
8. Battery compartment
7 8
This standard package contains:
• IRT2 infrared thermometer
• Battery (9.0 volt)
• Operation manual
• Carry pouch
• Wrist strap
MATERIALS SUPPLIED
WARRANTY
RETURN AUTHORIZATION
The meter is warranted to be free from defects
in material and workmanship for a period of
one year from the date of purchase. This warranty covers normal operation and does not
cover battery, misuse, abuse, alteration, tampering, neglect, improper maintenance, or
damage resulting from leaking batteries. Proof
of purchase is required for warranty repairs .
Warranty is void if the meter has been opened.
Verbal or written authorization must be
obtained from the supplier before returning
items for any reason. When requesting an RA
(Return Authorization) number, please include
data regarding the reason for return. The
meter must
be returned along with original
packing (including all accessories). To prevent
any damage in shipment, one should insure the
parcel against possible damage or loss.
CERTIFICATION
The meter complies with FDA radiation performance standard 21CFR subchapter J.
Mannix Testing & Measurement is a
leader in the field of temperature,
humidity, air flow and digital technology.
We offer a wide variety of instruments
including:
• Digital Thermometers
• Analog Thermometers
• Temperature & Humidity Monitors
• Digital Anemometers
• Digital Timers
• Stopwatch
• Weather Stations
• Rain Gauges
Please visit our website for
additional information or to
request a product catalog.
www.mannix-inst.com
78˚F
INFRARED
THERMOMETER
Model #
IRT2
OPERATION MANUAL
MODEL IRT2
Mini Infrared
Thermometer
Mannix Testing & Measurement
PO Box 866, Lynbrook NY 11563
www.mannix-inst.com
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