Marble
0.94
Chromium
Oxides
0.81
Plaster
0.80 to 0.90
Copper Oxides
0.78
Mortar
0.89 to 0.91
Iron Oxides
0.78 to 0.82
Brick
0.93 to 0.96
Textiles
0.90
High and Low Temperature Alarms
The IRT227 has a low alarm and a high alarm utility. Set the low and
high alarm limits in the Settings mode. See the Settings mode section for
details. The low and/or the high alarms can also be disabled in the
Settings mode. When the low or high alarm limits are reached the L (low
alarm) or H (high alarm) icon will blink and the alarm buzzer will sound
(the buzzer can be disabled in the Settings mode.
Settings Mode
Press and release the trigger and then press
the M (
Mode) button to
access the Settings Mode.
Use the
M
button to step through settings listed below and use the
SET
button to make changes.
Display mode: Maximum reading (MAX), Minimum reading (MIN),
Average reading (AVG), Differential reading (DIFF)
Backlight ON/OFF (LitE)
Laser pointer (LAS) ON/OFF setting
High Temperature Alarm Limit setting (ALM H)
Low Temperature Alarm Limit setting (ALM L)
Emissivity (ε) setting
Temperature unit selection (˚C/°F)
Buzzer ON/OFF (bU2)
To exit the Settings Mode, press the trigger to return to normal operating
mode or simply allow the automatic power OFF feature to switch the
meter OFF.
Display Mode: MAX-MIN-AVG-DIFF
Press the trigger and release.
Use M
Button to step through MAX-
MIN-AVG-DIF display mode icons. Press SET
when the desired icon
