Operation - Extech Instruments IR267 User Manual

Operation
Meter Power
The meter is powered by one 9V battery located in the meter handle. Refer to the Maintenance
section for replacement instructions. The displayed battery icon provides battery status. Replace
the battery as soon as the battery status icon flashes.
Non‐Contact IR Surface Temperature Measurements
The IR267 thermometer remotely measures the surface temperature of an object. The emissivity
must be properly set to obtain optimum accuracy (see the Emissivity section for details).
1. Hold the meter by the handle grip and pull (and hold) the trigger to power the meter. Use
the arrow button to select the O (object/surface) mode if necessary. Scan the surfaces under
test; the symbol S (scan) blinks while scanning. Refer to the Field of View section for
distance‐to‐target (spot) ratio considerations.
2. Aim the laser pointer approximately a half inch below a specific point of interest.
3. Release the Trigger; the symbol H will appear and the reading (larger digits at center of
display) will hold for 10 seconds, after which the meter will automatically shut off.
4. Note that the smaller digits, lower right, reflect the MIN‐MAX‐AVG or DIF reading as selected
in the Settings mode.
5. The meter defaults to the settings in use when the meter was last switched OFF.
Ambient (Air) Temperature Measurements
The IR267 can measure the temperature of ambient air using the recessed temperature sensor
located on the front of the meter next to the laser pointer lens.
1. Pull and hold the Trigger to keep the meter powered.
2. Use the UP or DOWN button to select the A (ambient) mode.
3. Hold the meter by its handle grip in the ambient air.
4. When finished, release the Trigger; the symbol H will appear and the ambient air
temperature reading will hold for 10 seconds.
Contact Thermocouple (Type‐K) Temperature Measurements
To avoid electrical shock or personal injury, do not connect the external probe to live
electrical circuits.
1. Plug the Type‐K thermocouple sensor into the sub‐miniature jacks at the bottom of the
instrument (one plug spade is wider than the other).
2. Pull the trigger to power the meter. Hold the trigger to keep the meter powered.
3. Use the arrow buttons to select the K (thermocouple) mode.
4. Hold the thermocouple in air or touch the tip of the thermocouple to an object's surface. The
thermocouple temperature measurement will be displayed.
5. When finished, release the Trigger; the symbol H will appear and the thermocouple
temperature reading will hold for 10 seconds.
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