wtw Oxi 3315, Operating Manual

Page: 36 / 60

Settings Oxi 3315
36
ba75944e02 03/2012
6.2.4 Automatic switch-off
The instrument has an automatic switch-off function in order to save the
batteries (see section 6.2.1 S
YSTEM
, page 34). The automatic switchoff
switches off the measuring instrument if no key is pressed for an adjustable
period.
The automatic switchoff is not active
 if a USB-B cable is connected
 if the
Automatic data storage
function is active, or with
automatic data trans-
mission
6.2.5 Display illumination
The meter automatically switches off the display illumination if no key is
pressed for 20 seconds.
The illumination is switched on with the next keystroke again.
You can also generally switch on the display illumination (see section 6.2.1
S
YSTEM
, page 34).
6.3 Reset
You can reset (initialize) all sensor settings and sensor-independent settings
separately from each other.
6.3.1 Resetting the measurement settings
Dissolved oxygen
The following settings for D.O. measurements are reset to the default settings
with the
Reset
function:
The sensor settings are reset under the
Reset
menu item in the menu for cali-
bration and measurement settings. To open the settings, display the required
The calibration data are reset to the default settings together with
the measuring parameters. Recalibrate after performing a reset.
Setting Default settings
Calibration interval
180 d
Check interval
60 d
Measured parameter
D.O. concentration
Relative slope (S
Rel
)
1,00
Salinity (value)
0,0
Salinity (function)
Off