RayTek 3i - Manual (Page 20)

2-8 Raynger 3i Series Operator’s Manual
Activate button —Press the activate button to activate HAL, LAL, or TAM, or to tog-
gle between DIG/ANA, or °C/°F, in the SET loop.
Backlight button and icon —The display has a backlight for working in low lighting
conditions. Press the backlight button to activate or deactivate the backlight. The
backlight icon is activated when the backlight is on. To save battery power, use the
backlight only when necessary. Note that if the battery voltage falls below 4.0 V, the
backlight will automatically turn off.
Low battery icon —The instrument is powered by four “AA” batteries. When the bat-
tery voltage falls below 4.6 V, the low battery icon is activated.
Note: Turning off the backlight and laser will extend the battery life (refer to Table 2-1 for
battery life under various conditions).
Celsius/Fahrenheit icons —The °C and °F icons indicate which temperature scale has
been selected.
LOG button and icon —Press the LOG/RUN button while you have the trigger
pulled to toggle between the LOG and RUN loops. The LOG icon is activated when
the instrument is in the LOG loop.
Emissivity display —The emissivity display shows the emissivity value selected in
either the RUN, RECALL, or LOG loops.
▲ ▲ and ▼ ▼ buttons—▲ increases and ▼ decreases the emissivity settings, DOI rate,
HAL or LAL set-points, TAM, or the LOG location number.
High and Low alarm icons —These are activated when the corresponding alarms are
activated. The HAL icon flashes and the buzzer sounds when measured temperature
is greater than or equal to HAL and HAL is active. The LAL icon flashes and the
buzzer sounds when the measured temperature is less than or equal to LAL and LAL
is active. Note that when a high or low alarm condition is met and the unit is sending
out RS232 data while in the Digital Output mode, the buzzer will make two tones: a
normal tone followed by a higher pitched tone.
Laser on/off button and LED —Press the laser button to activate or deactivate the
laser (RUN and LOG loops only). The laser LED is activated when the laser is activat-
ed. (Not applicable for the scope sighting model.) Note that if the battery voltage
falls below 4.3 V, the laser will automatically turn off. Also, if the unit is in the LOCK
mode, the laser will go off when the trigger is released.
Temperature display —Shows the current temperature (while the trigger is pulled) or
the last temperature measured (when the RECALL button is pressed).