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PRT-ATH1 / ACC-ATH1 Protege Temperature and Humidity Sensor Installation Manual | April 2011
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10 Standalone Configuration
The Protege Temperature and Humidity Sensor can operate separate of the Protege System and can activate
the 4 onboard outputs based on internal settings and output the current temperature and humidity as 0-10V or
4-20mA analog outputs.
10.1 Configuring Standalone Mode
By default the Protege Temperature and Humidity Sensor will not operate in ‘Standalone Mode’.
With the power
off set DIP switch 8 on as shown in the diagram below.
1 2 3 4 5 6 7 8
OFF
ON
Configuring Standalone Mode
When the Protege Temperature and Humidity Sensor is next turned on it will operate in a ‘Standalone Mode’. In
this mode the Status LED will not flash on start up, but all 3 LEDs will activate for 5 seconds to confirm it is
operating in the ‘Standalone Mode’.
10.2 DIP Switch Programming
The Protege Temperature and Humidity Sensor can be programmed from either a Terminal program via a Serial
interface or, for simple applications, the programming of some settings can be achieved using the DIP switches
alone. Using the DIP switches alone is referred to as ‘DIP Switch Mode’.
When in ‘DIP Switch Mode’ some settings cannot be programmed and default to the values shown in the table
below.
Sensor Outputs Hysteresis
Relay LED Analog
Internal Temperature 1 1 (0-10V) 2˚C (3.6˚F)
External Temperature 2 2 (0-10V) 5%