Instruction manual
Confined Gas Monitor
10
BISCO Environmental, Inc.
http://www.biscoenv.com
Beacon 110 Model RKI Instruments
The Beacon 110 is a powerful, low cost fixed system controller for one point of gas detection. It is
microprocessor controlled, versatile, simple to install and operate, and priced to be the industry’s
best value single gas detection controller. It is capable of accepting RKI sensors directly for LEL
level combustibles, Oxygen, Hydrogen Sulfide, or Carbon Monoxide. The Beacon 110 can also
accept any 4-20 mA transmitter (2 or 3 wire, 24 VDC). Sensors can be mounted directly at the
Beacon 110 housing, or can be wired remote from the controller.
The Beacon 110 is also housed in a NEMA 4X rated case for a weather tight seal. This case
design complies with lock out / tag out standards and can be fully secured. An external reset
switch allows the alarm to be silenced from outside of the controller housing. The Beacon 110
ships complete with a wall mounting kit for easy installation.
Low cost versatile solution »
Compact, weatherproof, NEMA 4X enclosure »
115/220 VAC or 24 VDC operation »
Long life sensors (2+ years typical) »
Accepts RKI LEL/O2/H2S/CO direct connect sensors »
Accepts any 4-20 mA transmitter »
Description
Beacon 110 Model
Confi ned Space Monitors
Description
M2 Series: LEL, O
2
, CO, H
2
S, LEL, H
2
S, CO
2
, HC
M2™ RKI Instruments
The RKI M2™ is a state-of-the-art transmitter that can operate as an independent, stand-alone
system or as part of a system connected with an analog or digital signal to virtually any control-
ler, PLC, or DCS. The M2 series detects LEL combustibles, oxygen, hydrogen sulfide, or carbon
monoxide. It utilizes a magnetic wand technique for performing non-intrusive calibration. The M2
provides an automatic zero drift correction feature, which results in more stable readings and
reduces the need for adjustments due to sensor aging.
The M2 housing does not need to be opened for zeroing or calibration, making it unnecessary to
declassify the area for routine maintenance. Internal push-buttons can also be used if the hous-
ing is opened. It is designed so that a complete field calibration can be performed by one person.
The stainless steel flame arrestor that covers the sensor (LEL, H2S, CO, or XP Oxygen) is water
repellent with a special patented water resistant coating.
Operates independent of a controller »
Direct digital readout on backlit LCD »
Available for LEL, H2S, CO, and O2 »
4-20 mA & digital Modbus outputs standard »
Non-intrusive calibration via magnetic wand »
2 fully programmable alarm relays & fail relay »
H2 specific LEL version available »