Hameg Instruments HM8018 Manual Del Usuario página 16

misaligned
6. Adjust offset (Vin):
Disconnect all cables from the instrument. Set
LC-Meter to range 200nF. „G". Connect DMM
(V ) to TP7. Adjust VR110(10) to 0 ±1mV.
DC
7. Range selection und gain:
Connect resistance 1 kHz to the banana jacks.
Set LC-Meter to 200mH. Repeat the following
steps several times.
a.) Set range to „Rs". Adjust the display of
LC-Meter to 1000 ± 1Digit by means of
VR105(5).
b.) Set range to „G ". Adjust the display of LC-
Meter to 1000 ± 1Digit by means of
VR401(21).
8. Adjustment of input capacitance:
Connect capacitor 470pF to banana jacks. Set
LC-Meter to 200pF, „G".To adjust the input
Sous réserve de modifications / Reservado el derecho de modificación
aligned
9. Range selection „C", „L":
capacitance, it is necessary to close the
module housing (a. and b.).
a.) Connect oscilloscope (AC-coupling) to TP5,
with modul cover closed. Pass the cable
through holes in the module cover. Reduce
amplitude to minimum by means of VR107
(7).
b.) Connect oscilloscope to TP4 (same way as
a). Remove capacitor 470pF. Reduce
amplitude to minimum by means of VR111
(11).
Remove all cables from HM8018.
Set LC-Meter to 200pF, „C".
Adjust „Display Zero" (front panel) to 0 ±3 digit
on the display of HM8018.
a.) Connect Kelvin probe HZ18 to Kelvin input
(5-pin diode jack) and reduce the reading
to 0 ± 3 digit via „Probe comp." on front
panel.
b.) Disconnect HZ18 and connect a known
capacitor between 10nF and 16nF to the
bananajacks. Set LC-Meter range to 20nF,
„C". Adjust VR104 (4)
as value of the capacitor.
for same reading
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