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SECTION IV
Model 4277A
6. Connect Short termination directly to 4277A UNKNOWN terminals as shown in
Figure 4-6 (b).
7. Press the ZERO SHORT button and wait a few seconds.
8. Set the 4277A's controls as follows:
DISPLAY A function . L
DISPLAY B function . ESR/G
Test Frequency. 10k Hz
L RANGE . ImH
TEST SIG LEVEL . HIGH
9. The values displayed on the 4277A should be within the following test limits:
DISPLAY A: 0±0.0009mH
DISPLAY B: 0±0.05Q
10. Successively set the TEST SIG LEVEL, test frequency and LC | Z |
RANGE in
accordance with Table 4-6 (b). The values displayed on the 4277A should be
within the test limits given in the table.
Table 4-6 (a). Open/Short Tests (Open)
Test
Frequency
Test Limits
TEST SIG LEVEL HIGH
TEST SIG LEVEL LOW
DISPLAY A
DISPLAY B
DISPLAY A
DISPIAY B
lOkHz
2()kHz
20.2kHz
50. Skllz
lOOkllz
200kHz
202kHz
505kHz
IMHz
0±0.0008nF
0±0.0013nF
0±0.0017nF
OiO.OOllnF
0±0.0008nF
0±0.0013nF
0±0.0017nF
OtO.OOllnF
O+O.OOOSnF
0±0.07yS
0±0.llyS
OlO.OOOSmS
0±0.0008mS
0±0.0007mS
OtO.OOllmS
0±0.008mS
0±0.008mS
0±0.007mS
0±0.0016nF
0±0.012nF
0±0.012nF
OtO.OllnF
0±0.0016nF
0±0.0l2nF
0±0.012nF
OtO.OllnF
OTO.OOlOnF
0±0.14yS
0±0.22yS
0±0.0016mS
0±0.0016iiiS
0±0.0014mS
0±0.0022mS
0±0.016mS
0±0.016mS
0±0.014mS
Table 4-6 (b). Open/Short Tests (Short)
Test
Frequency
L
RANGE
Test Limits
TEST SIG LEVEL HIGH
TEST SIG LEVEL LOW
DISPLAY A
DISPLAY B
DISPLAY A
DISPLAY B
lOkHz
ImH
0±0.0009inH
0±0.05f2
0±0.0018mH
OtO.lOQ
20kHz
lOOyH
0±0.6yH
0±0.08fi
0±1.2yH
0±0.16Q
20.2kHz
lOOyH
0±0.13yH
0±0.08fi
0±l.2yH
0±0.16n
50.5kHz
lOOyH
OiO.llyH
OiO.OSn
Oil.lyH
0±0. i6i7
lOOkHz
lOOyl-I
0±0.09yH
OtO.OSQ
0±0.18yH
o±o. lon
200kHz
lOyH
0±0.06yH
OtO.OSQ.
0±0.12yH
0±0.161^
202kHz
iOyH
0±0.013yH
0±0.08f2
0±0.12yH
OiO.iea
505kHz
lOyH
OlO.OllyH
0±0.08Q
OiO.llyH
0±0.16Q
IMIiz
lOyH
0±0.009yH
0±0.05Q
OiO.OlSyH
OiO.lOQ
4-12
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