For information on determining an unknown slope, and for sample slopes, refer to section 11.3 Typical
Slopes, p. 56.
To change the unit’s slope setting, complete the following:
1. Make sure the 2C LED is lit.
2. Press the Mode button until the Є LED is lit. The current slope value shows on the display.
3. Press the or button to change the value.
4. Press the Mode button several times until the C or F LED is lit. The displayed temperature
will now be based on the new slope value.
6.2.4 2C/1C Switch
To switch between 2-color and 1-color temperature measurement push the 2C/1C selector button. A lit
LED indicates the active measurement method. Switching affects the LED display and analog out but
not the RS485 out.
6.2.4.1 Peak Hold (PKH)
With Peak Hold, the respective last peak value is held for the duration of Hold Time.
To set and activate Peak Hold, do the following:
1. Press the Mode button until the PKH LED is lit.
2. Press the button to both set and activate. The display reads in 0.1 seconds. Set Peak Hold
from 0.1 to 299.9 seconds. If Peak Hold is set to 300.0 seconds, a hardware reset is needed to
trigger another reading. If Peak Hold is set to 0.0 seconds, the function is deactivated.
3. Press the Mode button until the C or F LED is lit. If Peak Hold has been activated, the Peak
LED will stay lit.
Once Peak Hold is set above 0, it automatically activates. The output signal remains the same until one
of two things happens:
The peak hold time runs out. In this case, the signal reverts to actual temperature.
The actual temperature goes above the hold temperature. In this case, starts holding new
peak.
Note that other hold functions (like Averaging) cannot be used concurrently. By means of the
software other hold functions are adjustable (e.g. Advanced Peak Hold).
6.2.4.2 Averaging (AVG)
Averaging can be useful when an average temperature over a specific duration is desired, or when a
smoothing of fluctuating temperatures is required.
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