MeshGuard User’s Guide
If the MeshGuard does not detect gas after counting down to 0, the LCD
displays “Err” (for “error”). The LED glows red and the buzzer sounds to
provide extra warning. The MeshGuard automatically returns to the span
calibration display.
Note:
To stop span calibration before the countdown reaches 0, press any
key. The LCD displays “no” and advances to the next programming
menu, Change High Alarm.
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