Heath Consultants GT Series - Manual (Page 37)

3-15
OPERATING PROCEDURE
Fig. 3.22 Switch OFF
• Press and hold both the LH button and the RH
button simultaneously to proceed with the
switch-off sequence.
5. Service Due Date message is displayed with
user shut-down if overdue.
Service due date is displayed, as shown in Fig.
3.23.
Fig. 3.23 Calibration Due Date