Manual

Gossen Metrawatt GmbH 13
➭ Select the System parameter with the help of the  scroll
keys.
➭ Switch to the submenu with the help of the  scroll key.
➭ Select the Date or Time parameter with the help of the

scroll keys.
➭ Acknowledge the selected parameter by pressing the OK key.
The entry cursor jumps to a random position in the settings
menu.
➭ Select the desired entry position with the   scroll keys and
change the respective value with the  scroll keys.
➭ Acknowledge your change with the OK key. The entry cursor
once again marks the entire parameter line.
➭ Return to the main menu by pressing the ESC key twice or the
MENU key once.
➭ The instrument is returned to the measuring mode after press-
ing the ESC key once more.
> General Setup  System   Time
09:50:20
   3x
> General Setup
 System   Date
13:06:2017
  
3x
6.5 Digital Display Settings
Brightness and the display profile (light or dark mode) can be
selected for the display.
6.5.1 Brightness
Brightness of the digital display can be set between 1 (minimum
brightness) and 9 (maximum brightness).
It can also be set to automatic. In this case, digital display bright-
ness is adjusted depending on the intensity of the light which
strikes the brightness sensor.
> General Setup
 System   Brightness:
1 ... 9, Auto
 3x
6.5.2 Display Profile
Two different views can be selected here – black lettering against
a bright background (light mode) or vice versa (dark mode).
> General Setup
 System   Display Profiles:
Inverted or Normal 
3x
Default setting: White lettering against a dark background
6.6 Set Display of Leading Zeros
The Display Zeros parameter can be used to specify whether lead-
ing zeros will appear or be suppressed at the measured value dis-
play.
> General Setup
 System   Display Zeros:
000.0 / 0.0
 3x
6.7 Configuring Password Protection
No password is assigned upon delivery, or after restoring the
default settings.
A password can be selected if required. The following parameters
are then password protected:
• RISO: Changes to test voltage
(Test voltage remains permanently set after changing it with
the password.)
•M/4: Changes to test current
(The default setting is 200 mA. Test current is reset to this
value when the instrument is switched off.)
As long as the instrument remains switched on, the password
only needs to be entered once. It has to be entered again after
switching the instrument off.
Any password can be selected subject to the following restric-
tions:
Maximum length: 31 characters
Content: Any desired alphanumeric characters
The password is entered via the digital keyboard (see section 6.1
on page 12).
6.7.1 Selecting or Changing a Password
➭ Press the MENU key.
➭ Press the General Setup softkey.
➭ Select the System parameter with the help of the
 scroll
keys.
➭ Switch to the submenu with the help of the  scroll key.
➭ Select the Change Password parameter with the help of the

scroll keys.
➭ Acknowledge the selected parameter by pressing the OK key.
Old Password appears in the header and the digital keyboard is
displayed.
➭ If a password hasn’t been selected yet: Press the Enter soft-
key.
If a password has already been selected: Enter the password
via the digital keyboard.
➭ Press the Enter softkey.
New Password appears in the header and the digital keyboard
is displayed.
➭ Enter the (new) password.
➭ Press the Enter softkey.
Acknowledge Password appears in the header and the digital
keyboard is displayed.
➭ Enter the password again.
➭ Press the Enter softkey.
The password has been set or changed.
➭ The menu mode is exited by pressing ESC three times and the
instrument is returned to the measuring function.
> General Setup  System  
Changing the Password
6.7.2 Deactivating Password Protection
A selected password can be deleted. Password protection is
deactivated as a result.
➭ Press the MENU key.
➭ Press the General Setup softkey.
➭ Select the System parameter with the help of the
 scroll
keys.
➭ Switch to the submenu with the help of the
 scroll key.
➭ Select the Change Password parameter with the help of the

scroll keys.
MENU
OK
OK
ESC
MENU
OK
OK
ESC
MENU
OK
OK
ESC
MENU
OK
OK
ESC
MENU
OK
OK
ESC
MENU