Chapter 5: Alarm Programming
75
5.5 temperature SCale
Temperature zones may be set in either Fahrenheit or Celsius degrees. The
default temperature scale is Fahrenheit. To change to Celsius:
1. Press SENSOR ON/OFF.
SENSOR
ON/OFF
2. Press °F / °C. The Model 400 responds: “Degrees Celsius” indicating
Celsius scale has replaced Fahrenheit scale.
TEST
°F/°C
#
3. To return to Fahrenheit scale, repeat the key sequence. The Model 400
responds: “Degrees Fahrenheit” indicating Fahrenheit scale is in effect.
NOTE: When switching from Fahrenheit to Celsius, or vice versa,
the change applies to all zones configured to read temperature. When
switching temperature scales it is important to reset high and low
temperature limits on all temperature zones. Refer to Section 5.4.1 to
reset temperature limits.
5.6 temperature CalIbratIon
To compensate for minor variances in sensor accuracy, an offset may be
programmed for each temperature zone. The amount of offset is measured
in degrees Fahrenheit or degrees Celsius. Adjustments are possible within
a range from -10 degrees to +10 degrees. For example, if zone 3 is sensing
temperature and is reading 1 degree too high, then the calibration for zone
3 is set at -1 to obtain an accurate reading.
5.6.1 programmIng temperature CalIbratIon
1. Press SET.
SET
2. Press CALIBRATE.
6
CALIBRATE
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