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User Manual SM6025
66
6
Digital Multimeter
0.5
%
7
Insulation resistance meter
500V 10 levels
8
Hipot Tester
0.25kW
(
0
~
500
)
V
6.6.3 Function check
Ensure function keys, displayer and terminal etc. can work normally.
6.6.4 Test signal level
Adjust multimeter in AC voltage range, where one test cable is connected to HCUR and the other is
connected to ground terminal. Change level as: 10mV, 20mV, 100mV, 200mV, 1V, 2V, the reading should
meet the demand of test signal level in this section.
6.6.5 Frequency
Connect frequency meter to ground terminal. The test terminal of the frequency meter is connected with
HCUR. Change the frequency as: 20Hz, 100Hz, 1kHz, 10kHz, 100kHz, 200kHz, 300kHz
(
SM6025 A is
300kHz
)
. The reading of frequency meter should meet the demand of the test signal frequency in this
section.
6.6.6 Measurement accuracy
Basic parameters are R, L, C and D
,
so measurement accuracy is mainly about R, L, C and D.
6.6.7 Accuracy of C and D
Function
C
p
-D
Test frequency 100Hz 1kHz 10kHz 100kHz
Test respectively
Level
1V
Range
AUTO
Bias
0V
Speed
Slow
Open and short correction should be made before testing. Connect standard capacitors: 100pF, 1000pF,
10nF, 0.1uF, 1uF and change the frequency. The error capacitance C between reading and nominal value
should be in the range ruled in this section, dissipation D should be in the range ruled in this section.
6.6.8 Accuracy of L
Test condition:
Function
Ls-Q
Test frequency 100Hz 1kHz 10kHz 100kHz
Test respectively
Level
1V
Range
AUTO
Bias
0V
Speed
Slow
Open and short correction should be made before testing. Connect standard inductors: 100
µ
H, 1mH,
10mH, 100mH and change the frequency. The error between reading and nominal value should be in the
range ruled in this section.
Содержание SM6025
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