Electrical Testing; 10.0 Calibration - SBS -H2 Installation, Operating, & Maintenance Instructions

Pre-March 2016 Version
When power is first turned on, a warm up period of 4 hours will elapse before the
detector will start to function. This delay is to prevent false activation of the internal
relays and alarm. The GREEN LED will flash during the warm up period and then turn
solid green once the warm up is complete.
If the concentration of hydrogen gas in the air surrounding the sensor reaches 1% by volume,
the yellow LED will light and the 1% internal relay will initiate(which can be used to activate a
remote fan and/or alarm).
Should the concentration reach 2%, the red LED will flash, the internal warning alarm will sound,
and the 2% internal relay will energize. The 1% relay will remain energized & the yellow LED will
remain on. When the concentration decreases below 2%, the red LED will turn off, the internal
alarm will stop, and the 2% relay will de-energize. When the concentration falls below 1%, the
1% relay will de-energize and the Yellow LED will turn off.
9.0

Electrical Testing

(after the input power is on for 4 hours)
A "push-to-test" button is located on the front of the unit. Push and hold this button for
approximately 10 seconds to test the unit's electronic circuitry.
The caution and warning LEDs will light in sequence; the relays will activate whatever is
connected to them and the internal warning alarm will sound.
Note: The "push-to-test" button does NOT test the sensor itself.

10.0 Calibration

The Sensor and display have been calibrated at the factory for hydrogen gas and should not
need adjustment at the time of installation.
*
The SBS-H2 Display can be calibrated in the field using a calibration kit (SBS Part# H2-
CALKIT) or the sensor and display can be sent to SBS for calibration.
SBS Part# H2-CALKIT calibration kit** shown above
*Sensor can accept up to 3 calibrations / **Sensor not included with calibration kit
10
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SBS-H2 Users Manual Rev 1.4 January 6 2013