Heath Consultants GT Series - Manual (Page 31)

3-9
OPERATING PROCEDURE
Fig. 3.12 Switch OFF
• Press and hold both the LH button and the RH
button simultaneously to proceed with the
switch-off sequence.
5. Cal Due Date message is displayed with user
shut-down if overdue.
Calibration due date is displayed, as shown in Fig.
3.13.
Fig. 3.13 Calibration Due Date
The screen, shown in Fig. 3.14, is displayed when
the Calibration date has expired. i.e. overdue.