HACH LANGE ORBISPHERE 3654, User Manual, Page: 34 / 58

32
Options Setup
5.4.6 Locking out the instrument’s CAL button
5.4.7 Rolling average
5.4.8 Automatic shutdown
5.4.9 Measurement mode
Choose
Measurement Mode
from the
Configuration
menu to enable maximum measurement
mode for sampling in bottles and cans.
When this occurs, the display is frozen and you may store the data. The instrument remains in
this mode until you select
Normal measurement mode
.
You can use the
Configuration
,
Sensor Calibration Status
menu to prevent an accidental sensor re-calibration from the
instrument keyboard.
Choose
Disabled
to lock out the keyboard
CAL
button. To
unlock this capability, choose
Enabled
. Choose
OK
when the
desired mode is selected.
Choose
Rolling Average Status
from the
Configuration
menu to enable or disable the averaging of gas concentration
measurements.
To enable averaging on three successive gas measurements,
choose
Enable
. Choose
Disable
to disable rolling average.
Choose
Automatic Shutdown Status
from the
Configuration
menu to activate the Automatic Shutdown feature.
If you select
Enable
, the instrument switches off automatically after
10 minutes of inactivity, thereby economizing battery power.
In
Maximum measurement mode
, the
instrument searches for two consecutive
measurements with less than a 2% difference,
as also described in
Measurement mode on
page 19 .