TB 9-6625-2146-24
Table 1. Calibration Description - Continued
Test instrument
Manufacturer and model
Parameters
Performance specifications
TS-340/U (horizontal position)
Ac volts
Range:
0 to 750 V
Accuracy; r 0.5% of FS, 25 to 400 Hz
Dc volts
Range:
0 to 750 V
Accuracy: r 0.5% of FS
ME-79/USM-33
Ac volts
Range:
0 to 600 V
Accuracy: r5% of FS, 50 to 1000 Hz
Ac amps
Range:
0 to 600 A
Accuracy: r5% of FS, 50 to 1000 Hz
Simpson, Model 1329
Dc Amps
Range:
0 to 50 A
Accuracy: r2% of FS
TS-340/U (horizontal position)
Ac volts
Range:
0 to 750 V
Accuracy: r 0.5% of FS, 25 to 400 Hz
Dc volts
Range:
0 to 750 V
Accuracy: r 0.5% of FS
TS-443/U (horizontal position)
Dc volts
Range:
0 to 150 V dc
Accuracy: r0.25% of FS
Weston, Model 155 (horizontal position)
Ac amps
Range:
0 to 50 A
Accuracy: r 0.5% of FS, 25 to 500 Hz
Weston, Model 430
Dc amps
Range:
100 PA to 50 A
(horizontal position)
Accuracy: r 0.5% of FS
Dc volts
Range:
All ranges
Accuracy: r0.5% of FS
Weston, Model 433
Ac volts
Range:
0 to 750 V
(horizontal position)
Accuracy: r 0.75% of FS, 25 to 125 Hz
r1.25% of FS, 125 to 2500 Hz
Weston, Model 455
Dc volts
Range:
0 to 750 V
(horizontal position)
Accuracy: r0.5% of FS
Ac volts
Range:
0 to 750 V
Accuracy: r0.5% of FS, 25 to 1000 Hz
Weston, Model 538
Ac volts
Range:
0 to 600 V
(horizontal position)
Accuracy: r2% of FS, 25 to 125 Hz
Ac amps
Range:
0 to 50 A
Accuracy: r2% of FS, 25 to 500 Hz
Weston, Model 622 Series
Dc volts
Range:
0 to 1000 V
(horizontal position)
Accuracy: r0.5% of FS
Dc amps
Range:
0 to 500 mA
Accuracy: r0.5% of FS
Weston, Model 633 Series
Ac volts
Range:
0 to 700 V at 60 Hz
(horizontal position)
Accuracy: r3% of FS
Ac amps
Range:
0 to 1000 A at 60 Hz
Accuracy: r3% of FS
Weston, Model 749
Ac volts
Range:
0 to 600 V
(horizontal position)
Accuracy: r3% of FS at 60 Hz
r5% of FS at 400 Hz
Ac amps
Range:
0 to 300 A
Accuracy: r3% of FS at 60 Hz
r5% of FS at 400 Hz
Weston, Model 901
Dc volts
Range:
0 to 1000 V
(horizontal position)
Accuracy: r0.5% of FS
Dc amps
Range:
100 PA to 50 A
Accuracy: r0.5% of FS
