TB 9-6625-2354-35
Table 6d. Simpson, Model 260-6M Resistance
Calibration Performance Limits and Adjustments
Resistance
Resistance standard indications
(Ω)
Test instrument
Test instrument
1
Indications
Resistance
ohms scale
Min
Max
Adjustments
(Ω)
range
2
RX1
12
10.7
13.5
RX100
12
1110
1300
None
RX10,000
12
111,000
130,000
TI must be calibrated in horizontal position.
1
2 Short
leads and adjust OHMS ADJ for 0 indication on ohms scale. Repeat for each range.
Table 6e. Simpson, Model 260-6M Dc Current
Calibration Performance Limits and Adjustments
Dc Current
Test instrument
Calibrator
Test instrument
1
Indication
Initial output
err indication
Adjustments
Dc current range
(A)
(A)
(%)
(fig. 2) (R)
50 A
50 A
50 A
1.5
R1
2
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 +50A/250mV input. After 50 A check is complete, reduce output to minimum and move
2
positive lead to TI + input.
3 Reduce output to minimum and connect TI negative lead to -10A input and connect TI positive lead to +10A input.
Table 7a. Simpson, Model 260-6P Specifications
Test instrument parameter
Performance specification
Dc voltage
Range: 0 to 1000 V
2% of FS
Accuracy:
Ac voltage
Range: 0 to 1000 V
3% of FS
Accuracy:
Resistance
Range: 0 to 20 MΩ
2.5 of arc for RX1 range, 2 of arc for
Accuracy:
all other ranges
Dc current
Range: 0 to 10 A
1.5% of FS for 50 A range, 2% of FS for
Accuracy:
all other ranges
12
