TB 9-6625-2352-35
Table 5b. Simpson, Model 260 Dc Voltage
Dc Voltage
Test instrument
Calibrator output
Test instrument
1
Dc volts
Indication
Initial
Limits
range
(V)
output (V)
Min
Max
Adjustments
2.5
2.5
2.5
2.425
2.575
10
10
10
9.7
10.3
50
50
50
48.5
51.5
None
250
250
250
242.5
257.5
1000
1000
1000
970
1030
5000
5000 (900)
5000 (900)
4850 (750)
5150 (1050)
2
TI must be calibrated in horizontal position.
1
Replace calibrator with power supply. Move positive lead to TI D.C. 5000 V input. Calibrate at 900 V if power supply not
2
available. After 5000 V test, replace power supply with calibrator and move positive lead to TI + input.
Table 5c. Simpson, Model 260 Ac Voltage
Ac Voltage
Test instrument
Calibrator
Test instrument
1
Ac volts
Indication
Initial output
err indication
range
(V)
(V)
(Hz)
(%)
Adjustments
2.5
2.5
2.5
60
5
10
10
10
60
5
50
50
50
60
5
None
250
250
250
60
5
1000
1000
1000
60
5
5000
800
800
60
31.25
2
TI must be calibrated in horizontal position.
1
Reduce output to minimum and move positive lead from TI + input to TI A.C. 5000 V input. After 5000V check is complete,
2
reduce output to minimum and move positive lead to TI + input.
Resistance
Test instrument 1
Test instrument
(Ω)
Indications
Resistance
Ohms scale
Min
Max
Adjustments
(Ω)
range
2
RX1
12
10.5
13.7
RX100
12
1050
1370
None
RX10,000
12
105,000
137,000
TI must be calibrated in horizontal position.
1
2 Short
leads and adjust ZERO OHMS for a 0 indication on ohms scale. Repeat for each range.
11