
OMG100N1.21
G100 Range
Page
16
Copyright Geotechnical Instruments (UK) Limited
Press the ‘Enter’ key to confirm/accept data keyed.
Any mistakes can be corrected using the soft-key ‘Delete’ which will delete the last
character typed. Alternatively, the sequence can be re-typed before the ‘Enter’ key is
pressed and the existing numbers will be pushed off the screen.
Note: The instrument will not allow invalid data to be entered; this should be deleted
and re-entered.
5.6 Changing Between Parameters
By default, the instrument displays the ‘Main Read Screen’ (for gas measurement). This
shows the CO
2
reading along with the optional O
2
reading. The instrument will return to
this screen after power on or when returning from the menus. Key 2 ‘Arrow up’ can be
used to switch to another measurement screen, i.e. temperature or humidity. Continue to
press the ‘Scroll’ key to return to the ‘Main Read Screen’.
5.7 Memory
The memory should not be used as a permanent storage medium and any important data
should be transferred to a more permanent storage medium as soon as possible. The
instrument should not be stored for prolonged periods with valuable data in its memory.
5.8 Storage
When not in use the instrument should be kept in a clean, dry and warm environment,
such as an office. It should be stored flat with the stand folded away which helps prolong
the life of the O
2
cell.
Note:
Fully charge the instrument before use if instrument has been stored for six
months or more.
5.9 Main Menu
The ‘Main Menu’ enables the operator to select options to set up specific parameters and
perform operational tasks prior to sample readings being taken or to view data/information
stored in the instrument.
1)
Press the ‘Menu’ key on the front of the instrument panel and the following screen is
displayed:
Main Menu
2)
Press the soft-key ‘Exit’ to exit the ‘Main’ menu.