Klein Tools IR1KIT Manuel D'instructions page 5

TEMPERATURE MEASUREMENT
To measure temperature with the IR1, aim the meter at the object to be
measured, pull the trigger (2) and hold it depressed for at least 2 seconds.
Releasing the trigger initiates Data Hold, "HOLD" will show on the display,
and the measurement will be held on the display. If the display shows
" " or " " following a measurement, this indicates that the surface
temperature of the object being measured is either above or below the
measurement range of the meter.
TARGETING
The IR1 features a laser (5) to assist in targeting the measurement area.
Measurement areas located far away from the meter will be larger than
those close to the meter.
The meter is configured with 10:1 optical resolution (distance-to-spot ratio).
The distance-to-spot ratio defines the size of the measurement area relative
to the distance between the measurement location and the IR sensor (4) .
Typical diameters of the measurement area as a function of the distance
between the meter and the target area are depicted below for 10:1 optical
systems (FIG. 1).
FIG. 1
Distance-to-Spot
NOTE: Increased distance from target may affect reading accuracy.
TARGETING LASER
The laser is on when the trigger (2) is held, and is off when released. When
on, the laser icon "
SELECTING A TEMPERATURE SCALE
The default scale is Fahrenheit (°F). To change, loosen the screw in the
Battery Compartment Door (3) and push the °F/°C Switch (6) to change to
Celsius (°C). Replace the Battery Compartment Door (3) and tighten screw
to secure, taking care not to over-tighten.
OPERATING INSTRUCTIONS
Ø0.5"
(13 mm)
5"
(127 mm)
10"
(254 mm)
20"
(508 mm)
40"
(1016 mm)
" will be visible on the display.
Ø1" Ø2"
(25 mm) (51 mm)
Ø4"
(102 mm)
5