59
Instrument Functions
row keys
7
to select the CONTRAST function
to choose the screen contrast, press the knob
6
(editing
mode) and select the desired contrast setting via knob. By
pressing the knob again, you can activate the manual va-
lue input via numeric keypad. A value input window will
be opened. You can use the numeric keys to enter a value.
After entering the value via keypad, confirm the entry by
pressing the ENTER key or by pressing the knob again.
7.3.2 Acoustic key signal KEY BEEP
The KEY BEEP function allows you to turn the key beep on
(ON) or off (OFF). In the SYST menu, use the arrow keys
7
to select the KEY BEEP function to activate or
deactivate the key beep, press the knob
6
(editing mode)
and select the desired setting via knob. Press the knob
again to confirm the selection.
7.3.3 TALK ONLY
The TALK ONLY function allows you to activate (ON) or
deactivate (OFF) the „Talk Only“ interface mode. In the
SYST menu, use the arrow keys
7
to select the
TALK ONLY function to activate or deactivate the „Talk
only“ mode, press the knob
6
(editing mode) and select
the desired setting via knob. Press the knob again to con-
firm the selection. The interface can only send, not res
-
pond, when TALK ONLY is activated.
7.3.4 Data Transfer Speed BAUDS
The BAUDS function shows the data transfer speed of the
serial RS-232 interface. The baud rate is not variable and is
9600 bit/s.
7.3.5 Line Frequency MAINS FRQ
The MAINS FRQ function allows you to select the existing
line frequency of 50 Hz or 60 Hz for the internal frequency
suppression. In the SYST menu, use the arrow keys
7
to select the MAINS FRQ function to choose
the line frequency, press the knob
6
(editing mode) and
select the desired line frequency (50Hz / 60Hz) via knob.
Press the knob again to confirm the selection.
7.3.6 Instrument Information INFO
The INFO function shows information about the firmware
version, the FPGA hardware version and the compensa-
tion date as well as the bridge serial number. To select the
menu item, use the arrow keys in the SYST menu
7
to select the INFO function.
7.4 Saving / Loading of Settings
By pressing the RECALL/STORE key
41
, you can load the
current measuring instrument parameters (settings) from
memory spaces 0 to 8, or alternatively, store them to me-
mory spaces 0 to 8. If the memory space 9 is selected, the
factory settings will be loaded (reset). However, this will
not impact the stored parameters in the memory spaces
0 to 8. After the measuring instrument has been switched
on, the parameters will be loaded from memory space 0.
Repetitively press the RECALL/STORE key
41
to toggle
between storing and loading measuring instrument para-
meters. Use ESC or press the RECALL/STORE key
41
again
to close the menu.
7.5 Factory Settings
Frequency FRQ
1.0 kHz
Level LEV
1.00 V
Preload BIAS
OFF
Measurement range RNG AUTO
Measurement speed SPD SLOW
NUM
1
FUNC
AUTO
Compensation OPEN
ON
Compensation SHORT
ON
Compensation LOAD
OFF
Triggering TRIG
CONT
Delay DELAY
0ms
Average AVG
1
Voltage / current Vm/Im
OFF
Guarding GUARD
OFF
Deviation DEV_M
OFF
Reference REF_M
0.00000 H / mH / µH / nH / F
mF / µF / nF / pF / Ω / mΩ kΩ /
MΩ / S / kS / mS / µS / nS / pS
Deviation DEV_S
OFF
Reference REF_S
0.00000 Ω / mΩ / kΩ / MΩ / S
kS / mS / µS / nS / pS / °
Constant voltage CST V
OFF
NUM
1
Function FUNC
AUTO
Reference LOADM
0.00000 Ω
Reference LOADS
0.00000 Ω
Contrast CONTRAST
49 (dependent on the LCD)
Key beep KEY BEEP
ON
TALK ONLY
OFF
Baud rate BAUDS
9600
MAINS FRQ
50 Hz