Hameg HM8037 Handbuch Seite 22

with an oscilloscope, if the obtained values are
accordingly translated. However, this will give
somewhat less precise test results.
Frequency variation of all ranges
a) HM8037 setting:
(2) FREQUENCY
(3) VARIABLE
(8) AMPLITUDE
no button pressed
b) Following the table below, the limits of all
frequency ranges can be checked.
Limits of Display
Range Freq. Variable (3)x0.1
50Hz 4,4 - 4,7Hz
500Hz 44 - 47Hz
5kHz 440 - 470Hz
50kHz 4,4 - 4,7kHz
Accuracy of Digital Frequency Readout
a) HM8037 setting:
(2) FREQUENCY
(3) VARIABLE
(8) AMPLITUDE
no button pressed
b) Connect SYNC. OUTPUT (6) to input of
HM8021 Frequency Counter.
c) The max. allowable deviation between the
readings of the HM8037 and the HM8021
is ± 1 digit.
Output amplitude stability
a) HM8037 setting:
(2) FREQUENCY
(3) VARIABLE
(8) AMPLITUDE
no button pressed
b) Connect Level Meter to OUTPUT(7) of the
HM8037 . Terminate (7) with 600Ω. Measure
output voltage.
c) Check output voltage within the entire
frequency range, using FREQUENCY (2)
and VARIABLE (3).
d) The output amplitude should not vary
by more than ±0.2 dB between 5 Hz and
50 kHz (reference 1kHz)
22
50Hz
x0.1 (ccw)
min. (ccw)
Freq. Variable (3)x1
57 - 60Hz
570 - 600Hz
5,7 - 6kHz
56 - 60kHz
50Hz
x0.1 (ccw)
min. (ccw)
5kHz
1kHz
max. (cw)
Output attenuator function
a) HM8037 setting:
(2) FREQUENCY
(3) VARIABLE
(8) AMPLITUDE
no button pressed
b) Connect Level Meter to OUTPUT (7). Termi-
nate with 600Ω. Adjust for 1V output
amplitude.
c) Firstly press one button (4) then both
buttons (4) simultaneously. The readings
should be 0.1V and 10mV (± 0.2dB)
respectively.
Maximum output amplitude
a) HM8037 setting:
(2) FREQUENCY
(3) VARIABLE
(8) AMPLITUDE
no button pressed
b) Connect Level Meter to OUTPUT (7).
Terminate with 600Ω.
The output voltage should be min. 1.5V.
c) Disconnect 600Ω resistor.
The output voltage should be approx. 3V.
Synchronous output function
a) HM8037 setting:
b) Connect channel I of oscilloscope to OUT-
PUT (7)
c) Connect channel II of oscilloscope to SYNC.
OUTPUT (6).
d) Both output signals are of same phase. The
output voltage of the SYNC. OUTPUT (6)
should be approx. 2V
pendent of control elements setting.
Checking the Distortion Factor
a) HM 8037 setting: 1 V
b) Connect OUTPUT (7) to input of HM 8027.
c) Connect Monitor Output of HM8027 to
input of HM8011; use 200mV/AC range. The
distortion factor has to be read on the
HM8011 display, because of the lower
Änderungen vorbehalten / Subject to change without notice
5kHz
1kHz
1V
5kHz
1kHz
max. (ccw)
optional
. It should be inde-
pp