TB 9-6625-2354-35
Table 4d. Simpson, Model 160 Resistance
Calibration Performance Limits and Adjustments
Resistance
Resistance standard indications
(Ω)
Test instrument
Test instrument
Indications
Resistance
ohms scale
Min
Max
Adjustments
(Ω)
range
1
RX1
30
27
35
RX10
30
270
350
RX100
30
2.7 k
3.5 k
None
RX1K
30
27 k
35 k
RX10K
30
270 k
350 k
1Short
leads and adjust OHMS ADJ for 0 indication on ohms scale. Repeat for each range.
Table 4e. Simpson, Model 160 Dc Current
Calibration Performance Limits and Adjustments
Dc Current
Test instrument
Calibrator
Test instrument
Indication
Initial output
err indication
Adjustments
Dc current range
(A)
(A)
(%)
(fig. 1) (R)
50 A
50 A
50 A
3
R2
1
100 A
100 A
100 A
3
----
1 mA
1 mA
1 mA
3
R1
1 mA
.6 mA
.6 mA
5
----
1 mA
.2 mA
.2 mA
15
----
10 mA
10 mA
10 mA
3
----
100 mA
100 mA
100 mA
3
----
500 mA
500 mA
500 mA
3
----
Connect positive lead to TI +50A/250mV input. After 50 A check is complete, reduce output to minimum and move
1
positive lead back to TI + input.
8
