General Tools and Instruments IRT659K - Manual (Page 6)

6
SETUP INSTRUCTIONS
INSTALL BATTERY
The IRT659K’s battery compartment (Fig. 1, Callout D) is below the
measurement trigger and accessible from the front of the grip. Before installing
the “9V” battery included in the blister pack, remove the plastic covering its
terminals.
To install the battery:
1. Open the battery compartment by placing your thumb and forefinger in the
indentations on the sides of the grip and pulling the top of the
compartment forward.
2. Plug the “9V” battery into the wired socket inside the compartment. The
terminals of the battery and the socket mate in only one way, with the
smaller male terminal plugging into the larger female terminal.
3. Close the battery compartment cover by pushing its top against the grip
until the cover snaps shut.
OPERATING INSTRUCTIONS
USING THE IRT TO SCAN FOR TEMPERATURE
1. Power on the IRT659K by squeezing and holding the yellow measurement
trigger (Fig. 1, Callout C) while pointing the unit anywhere. The LCD’s blue
backlight will illuminate and the unit will “chirp”. (If neither happens, the
battery is dead and must be replaced; see the above section for
instructions.) Note that squeezing the trigger causes the scanning icon
(Fig. 2, Callout C) to appear, flashing, in the top row of the display.
2. Release the trigger. The unit will respond by chirping again. The scanning
icon in the top row will disappear and be replaced by the word HOLD in
the middle of the LCD. The measured temperature will appear on the main
readout. Note that this same temperature will be displayed on the smaller
readout on the right side of the bottom line of the LCD. If this was the unit’s
first measurement, the number 01 will appear to the left of the
temperature and to the right of the word LOG.
3. Squeeze and hold the trigger again while pointing the unit at a different
target. Then release the trigger. Note that the temperature of the second
target will again appear both on the main readout and on the small readout