Heath Consultants GT Series - Manual (Page 46)

4-4
USER HANDBOOK
When the PPM autoranges to LEL, the display changes to
the example shown in Fig. 4.4.
Fig. 4.4 LEL Display
If displaying the maximum reading, the display will be as
the example shown in Fig. 4.5.
Note: Maximum display only for LEL and VOL.
Fig. 4.5 Max Reading
To return the display to normal (live) operation:
• Press and hold LIVE .
Note: If the LH button is not pressed, the display
will return to normal after 30 seconds.