SBS-CH4: Methane Gas Detector

Methane Sensor and Monitoring System

The SBS-CH4 Methane Gas Detector is a methane gas detection system with visual and audible alarms and 25%LEL and 50%LEL methane relays.

The system comes complete with the main control, a highly accurate methane gas sensor and a 25 ft. cable. This unit can be powered with AC and/or DC power and can be mounted directly to a wall or to an electrical box, making it extremely versatile and very user-friendly.

The SBS-CH4 includes relays for remote connection to alarm/monitoring systems and for control of external relays or an exhaust fan.

Have a question? Need more information? We're here to help.

Application Information

Benefits

  • Protects life, property and company profits
  • Ideal for remote locations
  • Fail safe mode in event of loss of power
  • Up to three (3) sensors can be installed to main control to meet space coverage requirements

Features

  • Universal power inputs: 110/220 Vac and/or 12–48 Vdc input
  • Strobe light for visual alerts
  • Sensor status indicator LEDs on the main control
  • Modular design for optimal placement of sensor(s)

Installation

  • Wall or 2-gang junction box mountable
  • Mechanical relays are easily accessible:
    • Warning 25% relay, 15 A @ 120 Vac; 10 A @ 277 Vac; 10 A @ 28 Vdc
    • Alarm 50% relay, 0.5 A resistive @ 28 Vdc, 0.5 A @ 125 Vac
  • Redundant power supply capability; dual AC and/or DC power supply connections (DC power supply will operate as backup power source)
  • Indicator LEDs can be tested by pushing the red “TEST” button
  • Sensors can be tested in the field with the P/N CH4-TESTKIT

Detector can operate exhaust fans and building alarms / SCADA systems:

battery gas sensor diagram

Warning Settings: Should the concentration of methane gas in the air surrounding the sensor reach 25%LEL by volume, the “25%LEL Warning” yellow LED will light up on the main control of the unit. In addition, the 25%LEL internal relay will energize and can be used to activate an external exhaust fan.

Alarm Settings: Should the methane gas concentration reach 50%LEL by volume, the “50% Alarm” red LED will light up, the strobe will flash and an audible alarm will sound. In addition, the 50%LEL internal relay will energize and can be used to activate a building management/alarm system (via SCADA/Modbus).

SBS-CH4 Includes

  • Main unit
  • Methane sensor
  • 25 ft. cable
Dimensions 4.7" L x 4.7" W x 1.2" D (main control)
Power Supply(s) 110/220 Vac, 50/60 Hz and/or
12–48 Vdc (9–58 Vdc operating voltage)
Leak Detection Methane
25% LEL (Lower Explosive Limit) Dry contacts rated 10A/250 Vac
50% LEL (Lower Explosive Limit) Dry contacts rated 0.5A/28 Vdc

Parts & Accessories

SBS-CH4 methane sensor and detector's calibration kit
Test Kit (international orders ship without compressed gas)
methane sensor with cable
Additional Methane Sensor with 25 ft., 50 ft. or 100 ft. Cable
SBS-Gas detector unit mounted with junction box
Unit can be powered with either AC or DC power and can be mounted directly to a
wall or to an electrical box, making it extremely versatile and user-friendly.
Additional mounting options in data sheet.
 
Accessory Ordering Information
Part No. Description
CH4-SENSOR-25FT Additional methane sensor with 25 ft. cable
CH4-SENSOR-50FT Additional methane sensor with 50 ft. cable
CH4-SENSOR-100FT Additional methane sensor with 100 ft. cable
CH4-TESTKIT Test kit (includes 25%LEL and 50%LEL methane, regulator, tubing and case) Note: cannot ship via air freight
CH4-JB 4 11/16" x 4 11/16" 2-gang junction box
E190399 AC Cord 110 V, 10 A, 10 ft. with plug

Drawings

Sample Methane Scenarios of Methane Detector Placement

SBS-CH4: StationaryMethane Gas Detector Placement Location

SBS-CH4: Forklift Battery Methane Gas Detector Placement Location

The SBS-CH4 includes relays for remote connection to alarm/monitoring systems and for control of external relays or an exhaust fan.

Applications

  • Agriculture and livestock
  • Biomass facilities
  • Chemical plants
  • Processing facilities
  • Oil, gas and refinery
  • Methane fueled back-up power systems