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发表于 2018-12-6 22:53:55
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Short leads and adjust OHMS ADJ for 0 indication on ohms scale. Repeat for each range.
Table 5e. Simpson, Model 260-6 Dc Current
Calibration Performance Limits and Adjustments
Dc Current
Test instrument1
Calibrator
Test instrument
Indication
Initial output
err indication
Adjustments
Dc current range
(A)
(A)
? (%)
(fig. 2) (R)
50 礎2
50 礎
50 礎
1.5
R1
1 mA
1 mA
1 mA
2
R2
10 mA
10 mA
10 mA
2
----
10 mA
6 mA
6 mA
3.3
----
10 mA
2 mA
2 mA
10
----
100 mA
100 mA
100 mA
2
----
500 mA
500 mA
500 mA
2
----
10 A3
10 A
10 A
2
----
TI must be calibrated in horizontal position.
1
Connect positive lead to TI +50礎/250mV input. After 50 礎 check is complete, reduce output to minimum and move
2
positive lead to TI + input.
Reduce output to minimum and connect TI negative lead to .10A input and connect TI positive lead to +10A input.
3
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