SBS-H2: Hydrogen Gas Detector

Hydrogen Sensor and Monitoring System

The SBS-H2 Hydrogen Detector is a hydrogen detection system with visual and audible alarms and 1% and 2% hydrogen relays.

The system comes complete with the main control, a highly accurate hydrogen 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-H2 includes relays for remote connection to alarm/monitoring systems and for control of external relays for an exhaust fan.

Learn about the Hazards of unmonitored hydrogen in battery installations

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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)
  • NRTL/C Certified: UL Std. No 61010-1 & CAN/CSA-C22.2 No. 61010-1-12

Installation

  • Wall or 2-gang junction box mountable
  • Mechanical relays are easily accessible:
    • Warning 1 % relay, 15 A @ 120 Vac; 10 A @ 277 Vac; 10 A @ 28 Vdc
    • Alarm 2% 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 H2-TESTKIT

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

battery hydrogen sensor diagram

Warning Settings: Should the concentration of hydrogen gas in the air surrounding the sensor reach 1% by volume, the “1% Warning” yellow LED will light up on the main control of the unit. In addition, the 1% internal relay will energize and can be used to activate an external exhaust fan or a building management/alarm system (via SCADA Modbus).

Alarm Settings: Should the hydrogen gas concentration reach 2% by volume, the “2% Alarm” red LED will light up, the strobe will flash and an audible alarm will sound. In addition, the 2% internal relay will energize and can be used to activate a building management/alarm system (via SCADA/Modbus).

SBS-H2 Includes

  • Main unit
  • Hydrogen 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)
25% LEL (Lower Explosive Limit) Dry contacts rated 10A/250 Vac
50% LEL (Lower Explosive Limit) Dry contacts rated .5A/28 Vdc

Parts & Accessories

SBS-H2 hydrogen sensor and detector's calibration kit accessory
Alarm system can be tested in the field with p/n H2-TESTKIT option.
hydrogen sensor with cable
Additional Hydrogen Sensor with 25 ft., 50 ft. or 100 ft. Cable
hydrogen detector 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
H2-SENSOR-25FT Additional hydrogen sensor with 25 ft. cable
H2-SENSOR-50FT Additional hydrogen sensor with 50 ft. cable
H2-SENSOR-100FT Additional hydrogen sensor with 100 ft. cable
H2-TESTKIT Test kit (includes 1% and 2% hydrogen, regulator, tubing and case) Note: cannot ship via air freight
H2-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 Hydrogen Scenarios of Hydrogen Detector Placement

SBS-H2: Stationary Hydrogen Gas Detector Placement Location

SBS-H2: Forklift Battery Hydrogen Gas Detector Placement Location

The SBS-H2 includes relays for remote connection to alarm/monitoring systems and for control of external relays or an exhaust fan.

Applications

  • Substations
  • Battery rooms
  • Uninterruptible power supply (UPS)
  • Battery cabinet systems
  • Battery charging areas
  • Hydrogen fueled back-up power systems