Heath Consultants GT Series - Manual (Page 47)

4-5
LEAK TEST MODE
If a CO sensor is included in your instrument and the CO
concentration rises above a pre-set level, the display will
change together with an audible alarm to attract your
attention. If alarm is enabled, CO alternates with
HIHI
until cleared.
alternating with
Fig. 4.6 CO Alarm
To acknowledge the alarm:
• Press and hold ACK .
After acknowledgement of the alarm, the screen, shown
in Fig. 4.7, is displayed.