TB 9-6625-2352-35
Table 10b. Simpson, Model 269 Series III Dc Voltage
Dc Voltage
Test instrument
Calibrator output
Test instrument
Dc volts
Indication
Initial
Limits
range
(V)
output (V)
Min
Max
Adjustments
.8
.8
.8
0.788
0.812
1.6
1.6
1.6
1.576
1.624
8
8
8
7.88
8.12
40
40
40
39.4
40.6
160
160
160
157.6
162.4
None
400
400
400
394
406
800
800
800
788
812
1600
1600 (900)
1600 (900)
1576 (876)
1624 (924)
1, 2
40002, 3, 4
4000 (900)
4000 (900)
3860 (760)
4140 (1040)
Replace calibrator with power supply.
1
Calibrate at 900 V if power supply is not available.
2
3 Perform only if 4000 V probe is available.
4 Replace power supply with calibrator.
Table 10c. Simpson, Model 269 Series III Ac Voltage
Ac Voltage
Test instrument
Calibrator
Test instrument
Ac volts
Indication
Initial output
err indication
Adjustments
range
(V)
(V)
(Hz)
(%)
3
3
3
60
2.5
R38 (R)
8
8
8
60
2.5
----
40
40
40
60
2.5
----
160
160
160
60
2.5
R37 (R)
400
400
400
60
2.5
----
800
800
800
60
2.5
----
Table 10d. Simpson, Model 269 Series III Resistance
Resistance
Test instrument
Test instrument
(Ω)
Resistance
Indications
range
Min
Max
Adjustments
ohms scale (Ω)
1
RX1
12
10.6
13.4
RX10
12
106
134
RX100
12
1.06 k
1.34 k
None
RX1K
12
10.6 k
13.4 k
RX10K
12
106 k
134 k
RX100K
4
340 k
460 k
1 Short
leads and adjust ZERO OHMS for a 0 indication on ohms scale. Repeat for each range.
20