BW Clip4 Alarms

When a gas alarm occurs, the gas detector starts beeping, flashing and vibrating simultaneously and continues until the alarm condition is cleared. In addition, the display backlight turns on and the identifier for the responsible gas starts flashing.

For high, STEL, and out-of-range alarms, the detector generates faster beeps, flashes and vibrations than for the other alarms, to draw more attention.

As a permissible exposure limit, a time-weighted average (TWA) is the acceptable average exposure over a specified period of time. The default period is 8 hours.

As a permissible exposure limit, a short-term exposure limit (STEL) is the acceptable average exposure over a short period of time as long as the TWA is not exceeded. The default duration is 15 minutes.

When a gas concentration is over the upper limit of the detection range, an over-limit alarm is generated.