General Tools and Instruments IRT6 - Manual

Congratulations on your purchase of the
Mannix Infrared Thermometer, model IRT6.
The compact size lets you get into tight places
while its convenient laser targeting and high
distance-to-spot ratio give you accurate read-
ings on distant targets .
• Precise non-contact Measurements
• Automatic Data Hold
• Laser Target Pointer
• The meter provides simple one hand opera-
tion and time saving temperature measure-
ment. 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 freez-
ing.
• The meter is pre-set to measure objects
with an emissivity of 0.95. This will accom-
modate the majority of items measured
without compensating for higher or lower
value. In most cases there will be little dif-
ference 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
FRONT PANEL DESCRIPTION
1. IR Sensor
2. Laser Pointer Beam
3. LCD Display
4. Backlight Select Key
5. Laser Key
6. Measure Key
! 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 788˚F (-20 to 420˚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. 8:1
Sampling Rate: 500 m/sec.
Display: LCD display with backlight
Power Off: Automatic shut off after 8 seconds
Operating Temp.: 32 to 122˚F (0 to 50˚C)
Operating Humidity: Maximum of 80% RH
Power Supply: 9-Volt Battery
Power Current: Approx. 12mA DC
Display Size: 0.75” x 1.375”
Weight: 6.3 oz. (178g)
Dimensions: 6.14” x 2.1” x 1.3”
INDICATOR SPECIFICATIONS
1. Laser Icon
2. Digital Readout
3. ˚C (Celsius)
4. ˚F (Fahrenheit)
5. BAT (battery indicator)
8.8.8
˚F
BAT
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2
3
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MEASUREMENT OPERATION
A. Power ON/OFF
The meter automatically powers up when the
MEASURE key is pressed. Press the MEASURE
key to read the measured temperature on the
LCD. The meter powers off automatically
approximately 8 seconds after the MEASURE
key is released.
B. Backlight LCD
Select backlight by first pressing the MEA-
SURE key and then pressing the BACKLIGHT
key. Repeat the procedure to turn the back-
light off.
C. Laser Pointer
To turn the laser pointer on, press the LASER
key while pressing the MEASURE key. Repeat
the procedure to turn the laser OFF
D. Measurement Considerations
While holding the meter, point the IR Sensor
toward the object whose temperature is to be
measured. The meter automatically compen-
sates 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 meas-
urements, 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
A flashing display is the indication that the bat-
tery voltage has fallen into the critical region
(6.5 to 7.5 V). Reliable readings can be
obtained for several hours after the first
appearance of the low battery indication.
Open the Battery Compartment 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 cleaning:
WARNING: We recommend cleaning the lens
periodically to ensure the reading accuracy. To
remove any particles on the lens use low pres-
sure 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.
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