Controls And Display - Hameg HM8130 Handbuch

C o n t r o l s a n d d i s p l a y

Controls and display

POWER (pushbutton)
Power switch
REMOTE / LOCAL (pushbutton and LED)
The REMOTE LED is lit when the instrument is operated
via the IEEE-488 bus or RS-232 interface. Return to local
by depressing the LOCAL switch is possible, provided that
the instrument is not in the local-lockout state.
GATE / TRIG. (BNC socket)
Input for trigger and gate signals
TRIG. / GATED / CONT. (pushbuttons and LED's)
Selection of the operating mode: gated, triggered and
continuous
FUNCTION (pushbuttons and LED's)
Selection of the function: ramp, triangle, sine wave, square
wave, pulse, arbitrary
Display (7-segment LEDs)
Display for frequency and output voltage. The frequency
resolution is 5 digit. The output voltage is indicated as
V (open circuit) on a 3 digit display. When sweep-mode is
pp
active the display indicates sweep time, start frequency or
stop frequency. If pulse is selected, the frequency display
is replaced by the display for pulsewidth. Similar applies
for the output voltage display. When OFFSET is selected,
the display indicates the DC-offset value (open circuit).
SWEEP (pushbuttons and LED's)
Selection of the parameters for sweep mode. Sweep time,
start frequency and stop frequency can be set indepently
from each other. Setting can also be accomplished during
sweep. The modification is carried out immediately.
Dial (rotary knob)
Dial for setting of all values (frequency, voltage, time) in
the different operating modes
Pushbuttons and LED's for selection of parameters
Selection of the frequency of the output signal, pulsewidth,
offset and output voltage. The active parameter is indicated
by a lit LED and can then be modified by the center dial.
The step width of the dial is dependent on the acceleration
20
Subject to change without notice
when turning. When turning slowly 1 digit resolution is
achieved. When turning fast the step width is bigger, thus
enabling to cover the entire frequency range with only a
few turns of the dial.
OFFSET (pushbutton and LED)
Pushbutton for activating the offset function. The output is
superimposed with a DC voltage. Offset can be selected
indepently from output voltage.
INVERT (pushbutton)
Pushbutton for the inversion of offset and pulses
OUTPUT (BNC socket)
Signal output, impedance 50 .
OUTPUT ON (pushbutton)
Output on/off
÷10/ * and x10/
(pushbuttons)
Decadic range setting and digit selecting for all para-
meters.
Rear panel
INTERFACE
Connector for either IEEE-488 or RS232 interface (optional).
AM – IN
Input for amplitude modulation
SWEEP OUT
Sawtooth output (sweep mode)
TRIG. OUT
Trigger output
Mains connector