Hameg HM8030-5 Bedienungsanleitung Seite 16

Slope symmetry of square wave
signal at lowerand upper end of the 3
highest ranges.
Slope symmetry of square wave
signal of the 5 lower ranges.
Frequency accuracy of the 5Hz range.
Preamplifier offset and distortion
alignment.
Square wave amplitude at about 3kHz.
Low frequency gain adjustment of
output amplifier.
Compensation of output amplifier.
Max. frequency and triangle amplitude
of the 5MHz range.
To start the calibration process firstly, switch off
the HM8001. Short circuit the two pins of connector
PT101 at the HM8030-5. Switch HM8001 on again
and remove the short on PT101. The least
significant digit indicates now step 1.
Offset , Sweep and Attenuator
a) Set frequency
HM8011-3 (2V AC) to PT100. Adjust VR102 to
0.5773±0.005V.
b) Set Multimeter to 0.2V DC and adjust VR101 to
0±10mV.
c) Repeat step a) and b).
a) Set frequency to max.
Connect Frequency counter to TRIG OUT
Set counter to Auto Trigger and pulse width.
Note measured time.
b) Set counter to measure pulse pause. Adjust
VR101 for the same time like a).
c) Set frequency to min., switch counter to
pulse width and note measured time.
: off.
to max. and connect DMM
d) Set counter to pulse pause and adjust VR104
to the same value.
e) Repeat step a) to d).
a) Set counter to pulse width and frequency
min. Note measured time.
b) Set counter to pulse pause and adjust VR106
to the same value.
c) Repeat step a) and b).
Set frequency
Adjust VR105 to 0000 on the display
a) Frequency
Connect multimeter (2V DC) to OUTPUT
Adjust VR111 to 0V ± 10mV.
b) Connect OUTPUT
VR108 and VR109 to obtain minimum distortion
(typ. 0.3%).
c) Repeat step a) and b).
Connect OUTPUT
(HZ22) to the oscilloscope (2V/div., 50µs/div.).
Set amplitude
Adjust oscilloscope sensitivity to 6 div. deviation.
Connect counter to OUTPUT
frequency (necessary for step 9).
Adjust 6 div. deviation on the oscilloscope with
VR110. Adjust best possible shape of square
wavewith VR107.
Set the oscilloscope to 0,1 µs/div. range.
Adjust VC102 for best possible square wave shape.
. a) Adjust VC101 to 6div. deviation on the
oscilloscope.
b) Adjust VC103 to 1000 times of the frequency
measured at step 6.
c) Repeat step a) and b).
To leave the calibration mode push the button
or switch off the HM8001.
Änderungen vorbehalten / Subject to change without notice
to max.
and amplitude 8 to maximum.
to distortion meter. Adjust
via 50Ω through terminator
and frequency to max.
to
.
and note