GMI Gasurveyor 500 Series, User Handbook Manual

Page: 33 / 102

3-5
OPERATION
Datalogging (Default)
A single press of Switch Three ( ) initiates a manual
datalog. This is confirmed by the buzzer sounding and, if
auto datalogging is disabled, the STORE flag being
displayed for 1 second.
A double press of Switch Three ( ) toggles automatic
datalogging on and off. When automatic datalogging is
on, the STORE flag is permanently displayed.
Cycling Through the Display Options
The Gasurveyor 500 instruments can be enabled to allow
the user to view the minimum and maximum readings for
each range during the instrument’s operation since switch
on.
The instrument automatically stores the highest and
lowest gas reading, together with STEL and LTEL (where
appropriate).
The instrument will not show Min. / Max. readings as
standard, as this requires to be pre-selected.
Table 3-4 shows the readings stored for each range.
Each press of Switch Four ( ) scrolls through the
available readings for the current range. Pressing Switch
Two ( ) selects the next gas range.