Frozen Food
0.90
Lead
0.50
Hot Food
0.93
Marble
0.94
Ice
0.98
Cloth (black)
0.98
Snow
0.90
Sand
0.90
Human Skin
0.98
Water
0.93
SETTING & ARMING TEMPERATURE ALARMS
To set the high alarm level (HAL), squeeze the trigger to power the IRT on and press the
SEL
button three times.
HAL
and the current value of the HAL setpoint will appear on the secondary
display. Press the
▼
or
▲
button to change the setpoint to the desired value. The new setting
will be saved automatically, with no need to press an additional button.
To arm the high-temperature alarm, press the
MEM
button (Fig. 1, Callout G) while the
secondary display is showing
HAL
and the high alarm setpoint. Doing so causes the term
HIB
to appear at the right of
HAL
. To disarm the alarm and make HIB disappear, press the
MEM
button again.
To set the low alarm level (LAL), squeeze the trigger to power on the IRT and press the
SEL
button four times.
LAL
and the current value of the LAL setpoint will appear on the secondary
display. To change the LAL setpoint, press the
▼
or
▲
button until the new setting is on-
screen. The new setting will be saved automatically, with no need to press an additional
button.
To arm the low-temperature alarm, press the
MEM
button while the secondary display is
showing
LAL
and the low alarm setpoint. Doing so causes the term
LIB
to appear at the right
of
LAL
. To disarm the alarm and make LIB disappear, press the
MEM
button again.
Whenever a temperature measured by the IRT is higher or lower than an armed high- or low-
temperature alarm, the beeper will sound repeatedly and
HAL
or
LAL
will flash.
Note: A high or low alarm cannot be set for surface temperatures measured by the “K” type
probe.
STORING & RECALLING RECORDS
The IRT855DL has enough on-board memory to store 100 temperature measurements.
Although emissivity values cannot be stored in the IRT855DL's on-board memory, they can be
displayed by the Temperature Test program (see screen shot on p. 10) as adjuncts to real-time
temperature measurements.
To save a record
, press the
MEM
button with a temperature reading on the primary display
and the current emissivity setting in the upper right corner of the LCD. Doing so will cause
MEM
to appear briefly on the bottom line, at the left of the number of the memory location that
will store the record.
Each subsequent press of the
MEM
button will increment the memory location counter by one.
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