Hameg HM 8030-3 Mode D'emploi page 9

Operational check
Measuring equipment required
20 MHz Oscilloscope: HM 203 or HM 204
HZ22 50Q Through-Termination
HM8011:3 Digital Multimeter or similar
Adjustable DC voltage source (max. 30V) e.g. HM 8040
HM 8021-2 Frequency Counter
Frequency variation
The adjustment range of the VARIABLE knob @ mustin
any case overlap the selected decade on both sides by
min. 5%.
Amplitude stability
Setting: © © © 09
N 1k max max
Connect oscilloscope to output 4). Use a 50% through-
termination. Set oscilloscope to DC coupling, Adjust sig-
nal height to 6 div. Check all frequency ranges with ()
and (4). The signal height should not vary by more than
0.12 Div. or 0.3 Div. respectively.
Maximum output amplitude
© © © 6 0
1k max. max. released
Connect clone to output 45. The signal amplitude
should be 20V,, + 500 mV,,. With a 50 Q load at the out-
put 49), the signal amplitude should still be 10V,,
+ 250 MV,p.
Setting:
Output attenuator function
ο © © 0
NY 100 50Hz max.
Setting: (2/43
released
Subject to change without notice
Connect digital multimeter (Vac) to output 45. Set knob
@§ for 5V display. Firstly depress button 42 (— 20dB)
only, then both buttons 43/43 (— 40 dB) simultaneously.
The DVM should display 0.5V or 0.05V +2% respec-
tively.
Adjustment range of the offset voltage
Setting: 09 02/03
depressed max max released
Connect DVM to the output 49. Use a 50Q through-ter-
mination. The DC potential should vary between about
+2.5V and —2.5V by use of control @4.
Freguency variation by FM input
Setting: optional; (2) fully cw.
Apply an adjustable DC voltage (t30V max.) to the
input ©. Display indication (1) will vary as a function of
the applied DC voltage. The obtained results can be
examined by use of the formulas specified in the "FM
input" section of the operating instructions.
Trigger signal waveform
Connect the oscilloscope to output 61). A square wave
signal with TTL level and a 50% duty factor will be
shown on the screen ("Low": about 0.4V; "High":
about bV).
M5 — 8030-3