Beacon 200 : 2 Channel Wall Mount Controller

The Beacon™ 200 is a powerful, low cost fixed system controller for two points of gas detection. It is microprocessor controlled, versatile, simple to install and operate, and priced to be the industry’s most economical two point controller. It is capable of connecting directly to RKI sensors for LEL level combustibles, Oxygen, Hydrogen Sulfide, or Carbon Monoxide. The Beacon™ 200 can also accept any 4-20 mA transmitter (2 or 3 wire, 24 VDC). Sensors can be mounted directly at the Beacon™ 200 housing, or can be wired remotely from the controller.

The 10 amp rated relays are strong enough to actuate most external alarms and horns without using slave relays. The digital display has backlighting and simultaneous readout of the gas type and concentration.

The Beacon™ 200’s housing is rated NEMA 4X for corrosion resistance and a weather tight seal, and complies with lock out / tag out standards. An external reset switch allows the alarm to be silenced from outside of the controller housing. The Beacon™ 200 comes complete with a wall mounting kit for easy installation.

RKI offers the industry’s widest selection of standard and toxic gas detection sensors, which can be utilized with the Beacon™ 200, providing gas monitoring protection for almost any application.


Dimensions  Height: 10.5” 267 mm Width: 8.5” 216 mm Depth: 6.3” 158 mm
Enclosure  Wall mounting grey polycarbonate with hinged cover
  3/4” NPT conduit hubs, 3 provided. 2 for sensor wiring and 1 for power & relay wiring
  Screw type terminal block, 14 gauge max
  4 internal push buttons for setup, programming, and calibration. 1 external push button for alarm reset


Operating Temp  14°F to 122°F (-10°C to 50°C)
Storage Temp  -4°F to 158°F (-20°C to 70°C)
  0 - 100% RH
  NEMA-4X enclosure, waterproof, chemical, and weather resistant


Direct Wired Sensors  LEL, Oxygen, Carbon Monoxide, Hydrogen Sulfide
  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. (See list of detectable gases.) Wiring distances up to 5000 feet
Sampling Methods  Diffusion and sample draw heads available


Relays  7 relays - 10 amp rating (at 115 VAC), SPDT isolated contacts. 2 relays for gas alarm levels per channel, plus 2 relays for common gas alarm and 1 common relay for malfunction. Relays fully programmable for: increasing or decreasing alarm, latching or self reset, normally energized or normally de-energized, time delay for alarm on and alarm off
4-20 mA  Signal output, 4-20 mA (into 1000 ohms impedance maximum), per channel
24 VDC  24 VDC (350 mA max) output provided to operate sample drawing adapters or other accessories
Display  Alphanumeric display with backlighting. 20 characters per line; 4 lines each
Audible  Built-in audible alarm, 94 dB, mounted on enclosure
Coded output: pulsing = gas alarm, steady = fail
Visual  4 LED’s on the front cover for alarm status indication, pilot, and malfunction
Expansion Cards
  Individual 4-20 mA (or 1 - 5 VDC) outputs
  Heavy duty relay card (4 each @ 30 amps)


115 VAC or 24 VDC standard, Optional 230 VAC. Battery backup option available


One year materials and workmanship

Partial List Of Detectable Gases
Many other gases or ranges available. Contact RKI for gases or ranges not listed