Wohler MR 400 Mode D'emploi page 36

Structure and functions
4.2 Key functions
Key
Power button
Mode button
Pressure zeroing
button
Start/stop button
Arrow keys
+
or
+
36
Keystroke
2 s
3 s
Short
lang
short
lang
Simultaneous
pressing
Functions
On
OFF
Switching between the submenus
Calling up the settings menu (from any
menu)
Backlight on/off
Pressure zeroing
(this deletes pressure values that have al-
ready been measured)
Starting and stopping the pressure test
Refrigerant selection in the "Saturation tem-
perature" submenu
Switching between parameters in the set-
tings menu
Switch between the three measuring menus:
Pressure and temperature meas-
•
urement (PT)
Vacuum measurement (VAC)
•
Pressure test (Hold)
•