PRT-ATH1 / ACC-ATH1
Protege Temperature and Humidity Sensor
Installation Manual | April 2011
29
Variable
Values
Definition
Set Point
IT: -40˚C to 60°C (-40°F to 140.0°F)
H: 0-100%
DP: -40˚C to 60°C (-40°F to 140.0°F)
ET: -40˚C to 60°C (-40°F to 140.0°F)
When operating in ‘Alarm Above Mode’, when the
temperature or humidity exceeds this value the
output(s) will be turned on.
When operating in ‘Alarm Below Mode’, when the
temperature or humidity drops below this value the
output(s) will be turned on.
This setting affects LED and Relay outputs. The Analog
outputs are not affected by this setting.
Hysteresis
0-100
When operating in ‘Alarm Above Mode’, when the
temperature drops below the Set point minus the
Hysteresis the output(s) will be turned off.
When operating in ‘Alarm Below Mode’, when the
temperature or humidity exceeds the Set point plus the
Hysteresis the output(s) will be turned off.
Alarm
Above
The mode determines when the output will be activated
compared to the set point. In this mode the output(s)
will be activated when the set point is exceeded.
Set Point = 20
Hysteresis = 2
Output
ON
Output
OFF
Time
20
18
ALARM ABOVE
Below
In ‘Alarm Below Mode’ the output(s) are activated when
the temperature or humidity is below the set point.
Set Point = 4
Hysteresis = 6
Output
ON
Output
OFF
Time
10
4
ALARM BELOW
Invert
No
Yes
The state of the output(s) can be inverted when this
option is set to ‘Yes’. When the invert option is selected
the output will be turned off when the sensor is in
alarm.
Once the programming is complete, select ‘x’ or press ‘ESC’ to return to the main menu and program the other
sensors or outputs.