Setting Mode - Extech Instruments IR255 User Manual

Setting Mode
Press the SET button to access the Setting Mode. Use the up and down buttons to navigate the
Setting Mode menu and to make changes. The available parameters are listed below:
 Emissivity setting
 °C/°F temperature units selection
 Temperature Alarm Audible Beeper Enable/Disable
 High Temperature Alarm Limit setting
 Low Temperature Alarm Limit setting
The corresponding parameter icon will flash when selected. To exit the Setting Mode, press
and hold the SET button for two seconds.
Emissivity Setting
The icon will flash when selected. Use the up and down buttons to increase or decrease the
emissivity (in 0.01 steps). The emissivity range is 0.10 to 1.00. Hold down the up or down
button to rapidly increase or decrease the emissivity value. Press the SET button to confirm
and to step to the next option.
Selecting the Temperature Unit of Measure (°C/°F)
Use the up and down buttons to select °C or °F. Press the SET button to confirm and to step to
the next option.
Enable/Disable Audible Temperature Alarm
This parameter is used to enable/disable the audible temperature alarm. The icon will flash
in this mode.
Use the up and down buttons to toggle the setting. When the audible alarm is disabled, the
display will show 'HIGH LOW'. When the audible alarm is enabled, the display will show
. When the audible alarm is enabled, the beeper is allowed to sound whenever
the measured temperature goes beyond the high or low temperature limit values. Press the
SET button to confirm and to step to the next option.
HIGH Temperature Alarm Limit Setting
Use the up and down buttons to increase or decrease the High Alarm Temperature Limit (in
0.1 steps). Holding down the up or down button will rapidly increase or decrease the HIGH
limit value. A beep will sound if the HIGH temperature value reaches the LOW temperature
value while programming. Press the SET button to confirm and to step to the next option.
LOW Temperature Alarm Limit Setting
Use the up and own buttons to increase or decrease the Low Alarm Temperature Limit (in 0.1
steps). Holding down the up or down button will rapidly increase or decrease the LOW limit
value. A beep will sound if the LOW temperature value reaches the HIGH temperature value
while programming. Press the SET button to confirm and to step to the next option.
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