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Fluke ScopeMeter 190-062 - Page 198

Fluke ScopeMeter 190-062
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Fluke 190-062, -102, -104, -202, -204, -502, -504
Service Manual

Input A, B, C, D Frequency Measurement Accuracy Test
Note
The test steps for channel C and D are only for the models
190-104, 190-204, and 190-504.
3URFHHGDVIROORZVWRWHVWWKHIUHTXHQF\PHDVXUHPHQWDFFXUDF\
 &RQQHFWWKH7HVW7RROWRWKH$DVVKRZQLQ)LJXUH'RQRWXVH7
WHUPLQDWLRQV
NORMAL SCOPE
FLUKE 5502A CALIBRATOR
CONNECT TO CHANNEL A, B, C, D IN PARALLEL
50 OHM TERMINATIONNO
ADC
B
PM9093
PM9092
AB
METER
P
M
9
0
9
3
PM9092
PM9091
2 CHANN. + METER
4 CHANNELS
SHUIYHUFHSV
Figure 4-5. 5502A Scope Output to Test Tool Input A, B, C, D
 6HOHFWWKHIROORZLQJ7HVW7RROVHWXS
D 5HFDOOWKHFUHDWHGVHWXSVHHStandard Test Tool Setup3UHVV
SAVE
F2
5(&$//DQGVHOHFWSETUPSUHVV
ENTER
VHOHFWWKHVHWXSQDPH
DQGSUHVV
ENTER
WRUHFDOOWKHVHWXS
E 3UHVV
SCOPE
F 3U
HVV
F2
±5($',1*«DQGVHOHFWZLWK
F1
±5($',1*6
DQGZLWK

Reading 1, on A, Hz
Reading 2, on B, Hz
Reading 3, on C, Hz
Reading 4, on D, Hz
 8VH
mV
RANGE
DQG
V
RANGE
WRVHOHFWUDQJHP9GLYIRU$%&DQG'
 8VH
TIMEsns
WRVHOHFWWKHUHTXLUHGWLPHEDVHVHWWLQJ
 6HWWKH$WRVRXUFHDVLQHZDYHDFFRUGLQJWRWKHILUVWWHVWSRLQWLQ
7DEOH
%HFDXVHQR7WHUPLQDWLRQLVDSSOLHGWKH$OHYHOHGVLQHZDYHRXWSXW
DPSOLWXGHLVWZLFHWKHVHWYDOXH
 2EVHUYHUHDGLQJ
A, B, C, DQG D DQGFKHFNWKDWLWLVZLWKLQWKHUDQJHVKRZQ
XQGHUWKHDSSURSULDWHFROXPQ

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