Optical Response: 8
μ
m to 14
μ
m
Operating Temperature: 14° to 122°F (-10° to 50°C) from 10 to 90%RH
Dimensions: 5.5 x 2.2 x 7.5 in. (140 x 56 x 190mm)
Weight: 17.64 oz. (500g)
Power Source: “9V” battery
OPERATING & MAINTENANCE TIPS
All IR thermometers, including the IRT855DL, take the average temperature of all objects
within a circular target area defined by the distance-to-spot ratio (field of view) of the IR
sensor and lens. Depending on the distance to the target, the target area may include both the
target and background objects in the thermometer’s field of view. If background objects in the
field of view are cooler than the target, the measured temperature will be lower than the
target’s actual temperature. If background objects are hotter than the target, the measured
temperature will be higher than the target’s actual temperature. The IRT855DL’s large D:S ratio
of 50:1 enables narrow measurement of high-temperature objects (up to 3000ºF/1650ºC) from
a safe distance.
To eliminate measurement error, move the IRT855DL close enough to the target
so the circle
created by the targeting laser falls just within the boundary of the object being measured.
Clean the lens often—but never use a solvent. Abrupt temperature changes will cause
condensation and possible vapor penetration. Clean after vapor evaporates. Blow off loose
particles with clean, compressed air. Gently brush remaining debris away with a lens hair
brush. Carefully wipe the surface with a moist cotton swab.
Avoid water, moisture and corrosive gas or liquids. The housing can be cleaned with a wet
sponge.
Remove the battery when storing this product for an extended period of time.
Do not drop or disassemble the instrument or immerse in water.
WARRANTY INFORMATION
General Tools & Instruments’ (General’s) IRT855DL Ultra Wide-Range Data Logging IR
Thermometer with “K” Port is warranted to the original purchaser to be free from defects in
material and workmanship for a period of three years. Subject to certain restrictions, General
will repair or replace this instrument if, after examination, the company determines it to be
defective in material or workmanship. The warranty period begins on the date of purchase. You
are encouraged to register your product online. General will extend your warranty an additional
60 days if you register at www.generaltools.com/ProductRegistry.
This warranty does not apply to damages that General determines to be from an attempted
repair by non-authorized personnel or misuse, alterations, normal wear and tear, or accidental
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