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Raynger 3i Series Operator’s Manual 2-13
3. Press the laser button to activate the laser (if equipped with laser sighting).
4. Carefully aim using the laser or scope.
Note: The laser or scope indicate the target (see Sections 2.7.1 through 2.7.4). Make sure the
spot you are measuring fills the target.
5. Read the temperature from the display.
RUN contains 4 modes: MAX, MIN, DIF, and AVG (as shown in Figure 2-7). In RUN,
the current temperature and emissivity setting along with either the MAX, MIN, DIF,
or AVG temperature can be displayed. Note that AVG is a weighted average of all
readings taken since the trigger was pulled. The unit uses the following formula to
calculate the running average (while the trigger is pulled):
R
1
+ R
2
+ R
3
+ ...R
n
= AVG
n
where R = a reading and n = the total number of readings.
• Press the MODE button to change modes.
• Press the ▲ or ▼ buttons to change emissivity.
• Press the backlight button if a brighter display is necessary.
Note: When you simultaneously press the MODE and ACTIVATE buttons while in the
RUN loop, the instrument is reset to its RUN loop factory default settings (stored data
is unaffected). The instrument will “beep” after reinstalling the default settings.
Section 3.6 lists default setting for each model as well as non-model-specific default set-
tings and range values.