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Physical
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Dimensions
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Height: 12.5” (318 mm) x Width: 11” (279 mm) x Depth: 6.4” (136 mm)
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Enclosure
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NEMA 4X non-metallic for indoor and outdoor locations
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Conduit Connection
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3/4” NPT conduit hubs, 4 provided, for sensor, power, & relay wiring
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Wiring Termination
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Screw type terminal block, 14 gauge max
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Power
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115 VAC & 220 VAC, or 24 VDC nominal, battery backup option available
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Controls
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Display PCB Control Switches:
• UP/YES push button switch • DOWN/NO push button switch
• ESCAPE push button switch • ENTER push button switch
• External reset switch • On/Off toggle switch
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Environmental
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Operating Temperature
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-4°F to 122°F (-20°C to 50°C)
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Storage Temperature
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-4°F to 158°F (-20°C to 70°C)
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Relative Humidity
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0 - 95% RH (non-condensing)
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Enclosure Rating
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NEMA-4X enclosure, chemical and weather resistant
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Inputs
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Direct Wired Sensors
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LEL, Oxygen, Carbon Dioxide, and toxic gas sensors.
Remote amp not required for less than 500 feet
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4-20 mA Sensors
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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
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Sampling Methods
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Diffusion and sample draw heads available
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Outputs
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Relays
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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, provid- ing for up to three alarm relays per channel. 10A contact rating.
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4-20 mA
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Signal output, 4-20 mA (maximum load impedance 500 ohms), per channel
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RS-485
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Modbus format RS-485 serial output of all channel data, including gas reading and alarm status.
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Display
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4 x 20 backlit LCD display
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Audible
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Built-in audible alarm, 94 dB, mounted on enclosure
Coded output: pulsing = gas alarm, steady = fail
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Visual
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1. Alarm LED’s (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 top of case.
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Approvals
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CSA Certified to CSA C22.2 No. 1010 and ANSI / ISA S82.01
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Warranty
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One year materials and workmanship
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