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IRT500-EU-EN v1.4 9/13
Thermal Scanning Operation
The thermal scanning feature allows for quick and easy location of hot or cold spots with respect to
a reference temperature. Hot and cold spots are readily indicated by visible and audible alarms
based on a degree deviation from the reference point or by recorded MAX/MIN points.
Temperature and Alarm Indicators (4)
1.
Temperature readout: Large digits on the display.
2.
Limit Indicator LED: Red (high), Green (normal), Blue (low)
3.
Bargraph: Relative temperature indication on the display.
4.
Audible Beeper: Relative temperature indication by frequency of beeps.
Setting the Reference Temperature
1.
Point the sensor at a surface. The initial temperature reading will become the reference
temperature.
2.
Momentarily press the trigger to turn the meter on.
3.
When the Limit Indicator LED turns green the reference temperature has been established.
The reference temperature is displayed on the bottom portion of the display.
SET button
The SET button sets a degree variation from the reference value to trip the Limit LED.
1.
Momentarily press the SET button to display 1.0, 5.0 or 10.0 degrees.
2.
If the scanned temperature is within the set limit, the limit LED will remain green.
3.
If the scanned temperature is higher than the set limit, the limit LED will turn red.
4.
If the scanned temperature is lower than the set limit, the limit LED will turn blue
MAX-MIN button
When the MAX-MIN feature is active, the upper display will indicate the highest or lowest
temperature measured during a scan. Each time the existing MAX or MIN is exceeded the display
will update and the limit LED will flash red or blue.
1. Momentarily press the ‘MAX/MIN’ button to display the ‘MAX’ value.
2. Repeat the press to display the ‘MIN’ value.
3. Press the ‘SET’ button to exit the ‘MAX-MIN’ mode.
Beeper
Momentarily press the
button to enable the beeper feature. Repeat the press to disable the
feature (
). The beeper will sound approximately once per second at the reference temperature
with the frequency of the beep increasing as the temperature nears the set limit or Min/Max value.
