Crowcon Gasman User Manual page 11

Gasman
Confidence signals
In normal Run mode, Gasman will emit a short beep accompanied by a blue LED flash every 0
seconds and the OK icon flashes to show operational health. These confidence signals can be
disabled using the PC software.
2. In the event of an alarm
Alarm signals
In the event of gas concentrations exceeding the alarm thresholds for the
gas being monitored, Gasman will activate the alarm signals.
1. When the gas level returns to normal, press the operator button.
This will reset your Gasman unit to normal Run mode. If the gas
level is still in alarm, the button will have no effect.
The Gasman alarm is set to latch by default. The unit will still continue in alarm mode even
when the gas level returns to normal, pressing the operator button will clear the alarm.
3. Switch off unit and storage
Switching off unit
1. Press and hold the button for 5 seconds until the display shows
OFF. The display will count down to switch off.
Alarm signals
The red and blue alarm LEDs
will flash, the sounder will emit
a loud, fast series of beeps, the
H S
2
internal vibrator alarm will activate.
ppm
The operator screen will display
the alarm level and gas reading
alternately.
See the figure to the left.
AL - 1 — Alarm level one
AL - 2 — Alarm level two
Quickstart guide