Specifications

Level One: Protege GX Installer Study Guide | August 2013 89
Temperature and Humidity Sensors
Protege Temperature and Humidity Sensor (PRT-ATH1)
The Protege Temperature and Humidity Sensor is designed to measure temperature and humidity. It can
operate in standalone mode or can be connected to the Protege system.
Technical Specifications:
 Operating Current: 20mA (typical)
 Inputs: 1 module tamper
 Outputs: 2 relay outputs (100mA max), 2 programmable LEDs
 Comms: 1 non-isolated RS-485 port
Note: The ATH1 draws its power from the RS-485 Module Network.
Features
The ATH1 has an internal temperature and humidity sensor as well as the circuitry for an external k-type
thermocouple temperature sensor:
 Temperature sensor -40˚C to 60˚C (±1˚C) -40˚F to 140.0˚F (±2˚F)
 Humidity sensor 0% to 100% (±3%)
 Secure encrypted RS-485 module communications
 Channel deviation trigger level
 2 low current PGM Outputs
 2 display LED PGM Outputs
 2 0 to 10V or 4 to 20mA analog Outputs (ACC-ATH1 only)
 8 to 30VDC input power supply
 Online and remote upgradable firmware