CM-21A 3M, CM-21A Datasheet - Page 2

• Manufacturer Part Number: CM-21A
• Description: Gas Detector
• Manufacturer: 3M

Specifications of CM-21A

• Gas Detector Type: Single Gas
• Features: Mounts In 4x4 Box, Meets OSHA Standards, Fan And Alarm Relays, 12-24 VAC Or VDC Operation
• For Use With: Stand-alone Or W/ Control Systems
• Lead Free Status / RoHS Status: na

Combustible Gas Detectors
Note: finished good model numbers are the same as the part numbers for ordering purposes.
Note: Standard calibration of combustible gas detectors can detect the following gases: methane, LP, natural gas, propane, butane and gasoline vapors.
Control Panel for Fixed Gas Detectors
For Multi-Point Applications Such As Parking Garages, Warehouses, Maintenance Facilities
DVP-120
Gas detection and ventilation control panel with externally visible LCD
display showing the status of each transducer and relay.
• 120 VAC operation
• Adjustable alarm settings and time delays
• Three 16 Amp, 240 VAC SPDT fan/alarm relays
• Accepts 4-20mA input from up to 12 CO, NO
• Externally visible LED status indicators
• Lockable NEMA 1 type enclosure
• 24VDC drivers for external horn and strobe
• Internal buzzer, 90 dBA at 1ft
For Homes, Furnace Rooms, Commercial Buildings, Energy Management Systems
GD-1-SPC-NG /
GD-1-SPC-PRO
Gas detector for use with
alarm systems. Available in
two calibration options: 20%
LEL Propane or 20% LEL
Methane.
• Flush or surface mount
• 12-24 VAC or VDC operation
• SPDT alarm relay
• N.C. trouble relay
GT-11A
Analog gas transducer for
use with HVAC/Building
Automation Systems.
• NEMA 1 Enclosure
• 24 VAC or VDC operation
• 1-5V or 4-20mA output
• Compatible with DVP-120
• 0 to 20% LEL range
• Color: Gray
GD-1D
Gas detector for use with alarm
systems, dual relay
output. Standard calibration
10% LEL and 25% LEL Methane.
• Flush mount
• 12-24 VAC or VDC operation
• High and low level
GT-11
Analog gas transducer for
use with HVAC/Building
Automation Systems.
• 24 VAC or VDC operation
• 1-5V or 4-20 mA output
• 0 to 20% LEL range
• Color: White
alarm relays
2
or LEL gas sensors
GD-1S
Gas detector for use with alarm
systems, or 12VDC boats,
motor homes, and alternately
fueled vehicles
(i.e. propane, hydrogen, etc.).
• Surface mount
• 12 VDC operation
• N.O. alarm relay
4S1D-1-BR
Combustible gas detector for
use in commercial applications
with 120 VAC operation
requirement.
• 120 VAC operation
• 85 dBA buzzer
• N.O. alarm relay
• Alarm set point: 25% LEL
• Mounts to double gang box
• Optional 220 VAC operation
natural gas (methane)
(Model: 4S1D-1-BR-220)
SS103-3A
CO ventilation controller to monitor up to three (SS103-3A)
• 120 VAC operation
• Adjustable alarm settings
• Three 10 Amp relays
• System status LED’s
• Sturdy electrical box enclosure
remote transducers.
GD-2A
UL listed combustible gas
detector for use with fire and
security alarm systems.
• Flush or surface mount
• 12-24 VAC or VDC operation
• SPDT alarm relay
• N.C. trouble relay
• UL listed to UL 2075
• Alarm set point: Per UL
4S1-GVC
Gas valve controller for
propane and natural gas. Gas
valve sold separately through
HVAC or gas suppliers.
• 24 VAC operation
• 85 dBA alarm buzzer
• N.C. relay powers 24V gas
• Alarm Level: 10% LEL of
• Class Two System:
1484 (25% LEL)
valve
propane and natural gas
low voltage operation
GD-21
Easy to install stand-alone
heating gas detector for
residential use.
• 120 VAC operation
• 85 dBA buzzer
• Alarm set point: 25% LEL
natural gas (methane)