Introduction In The Operation Of The Hm8130; First Time Operation; Operation Of The Hm8130; Display - Hameg HM8130 Handbuch

Introduction in the operation of the HM8130

First time operation

Before using the instrument for the first time, please check
the following:
– The line voltage indicated on the rear panel corresponds
to the available line voltage, also, the correct fuses for this
line voltage are installed. The fuses are contained in the
line voltage connector housing.
– The connection to the mains is either by plugging into a
socket with safety ground terminal or via an isolation
transformer of protection class II.
– No visible damage to the instrument.
– No visible damage to the line cord.
– No loose parts floating around in the instrument.
Switch-on
When the HM8130 is turned on, it automatically performs a
self-test routine and displays the device type and the version
(e.g. 8130 1-0). After switch-on the HM8130 has the same
configuration as switched off. All instrument settings are saved
in a non-volatile memory and are read back after switch-on.
O p e r a t i o n o f t h e H M 8 1 3 0

Operation of the HM8130

Display

In normal operating mode, the display provides information
about the frequency and amplitude settings with indication of
the units by LED. The frequency display shows 5 digits and
has a maximum resolution of 10 mHz. Amplitude values are
displayed with 3 digits and can be set to a maximum resolution
of 1 mV. The displayed amplitude values presuppose that the
output is unloaded and must be divided by 2 to yield the correct
value when terminated with 50 . In addition, in normal mode
the displayed values are peak-to-peak values.
With the offset function activated, the display shows the offset
voltage. The displayed values refer to an unloaded output.
Setting the pulse width in pulse mode, the frequency display
shows the pulse duration. The duration of the positive pulse
or – if a negative sign is stipulated by pressing the corres-
ponding button – the negative pulse is displayed.
In sweep mode the frequency display switches automatically
over to the sweep time, the start frequency and the stop
frequency, depending on the selected function.

Setting parameters

After selecting the requested
waveform by pressing one of the
pushbuttons FUNCTION , the two
parameters frequency and voltage
can be set with the rotary dial
with the decade range switches ÷10/
* and x10/ . The FREQ. button
or the AMP. button have to be pressed
and the corresponding value can be
adjusted by the rotary dial
slowly, each step increments or decrements the smallest digit
.Turning the dial faster the rate of change is increased. Thus
quick changes can be made over the entire frequency range
of the HM8130. The range can be changed by a power of ten in
both directions by using the two range switches ÷10/ * and
x10/ . Thereby precise decade shifts can be done.
When the button * is pushed long (approx. 2 seconds), a
beep sounds and one digit displayed will be blinking. The
blinking digit can be changed by the rotary dial
or
. When tuning the rotary dial
. The digit to
21
Subject to change without notice