Heath Consultants GT Series - Manual (Page 103)

10-5
PRESSURE MODE
10.6.2 Zero
To zero the instrument:
(before tubing is attached)
• Press and hold the RH button .
10.6.3 Menu / Off
To re-select the Mode Menu:
• Press and hold both the LH button and the RH
button .
When menu appears on the screen, release the
buttons, otherwise the instrument will proceed into
the switch OFF process and will switch OFF after
a further three (3) seconds.
10.7 PRESSURE ALARMS
There are no alarms in this mode.