11
Overview of the Portavo 904 OXY
Keypad
The keys of the membrane keypad have a
noticeable pressure point.
They have the following functions:
on/off
Switches the meter on and
displays the device and
calibration data (see Start-up)
meas
Switches the meter on /
Activates measuring mode /
Data logger, stopping
cal
Start calibration
set
Activates configuration /
Confirms entries
clock
Displays time and date, allows
setting the clock using set
RCL
View stored values
STO
Holds and saves a measured
value, allows setting and
starting of the logger by
pressing set (page 22)
When this icon is displayed,
you can use the arrow keys
for navigation.
