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Specifications
Physical
Dimensions:
Height: 12.5”
Width 11”
Depth 6.4”
Enclosure: NEMA 4X non-metallic for indoor and outdoor locations
Conduit Connection: 3/4” NPT conduit hubs, 4 provided, for sensor, power, & relay wiring
Wiring Termination: Screw type terminal block, 14 gauge max
Power: 115 VAC & 220 VAC, or 24 VDC nominal, battery backup option available
Controls: Display PCB Control Switches:
UP/YES push button switch
DOWN/NO push button switch
ESCAPE push button switch
ENTER
External reset switch
On/Off toggle switch
Environmental
Operating Temp: -4°F to 122°F (-20°C to 50°C)
Storage Temp: -4°F to 158°F (-20°C to 70°C)
Relative Humidity: 0 – 95% RH (non-condensing)
Enclosure Rating: NEMA-4X enclosure, chemical
Inputs
Direct Wired Sensors: LEL, Oxygen, Carbon Monoxide, Hydrogen Sulfide, and Carbon Dioxide.
Remote amp not required for less than 500 feet
4-20 mA Sensors: Accepts any 4-20 mA transmitter (24 VDC, 2 or 3 wire). A wide variety of RKI/Riken sensors are available with 4-20 mA signals. Wiring distances up to 8,000 feet
Sampling Methods: Diffusion and sample draw heads available
Outputs
Relays: Two flexible, programmable Form-C (C, NO, NC) relays per channel, plus five common relays (Fail, Alarm-1, Alarm-2, Alarm-3, Alarm-Any). Common relays may optionally be assigned to function as additional channel alarm relays, providing for up to three alarm relays per channel. 10A contact rating.
4-20 mA: Signal output, 4-20 mA (maximum load impedance 500 ohms), per channel
RS-485: Modbus format RS-485 serial output of all channel data, including gas reading and alarm status.
Display: Four line OLED display
Audible: Built-in audible alarm, 94 dB, mounted on enclosure
Coded output: pulsing = gas alarm, steady = fail
Visual: 1. Alarm LEDs (on Display PCB)
Alarm 1, yellow
Alarm 2, orange
Alarm 3, red
Fail, yellow
2. Green Pilot LED to indicate AC power connected (on Display PCB)
3. An optional 24 VDC NEMA 4X strobe mounted to
