TB 9-4931-217-40
Table 1. Calibration Description
Test instrument parameters
Performance specifications
Model 230B
Rheostat arm zero resistance
0.04 max
Resistance:
A
Rheostat arm
Range: 0.9 to 110,010
ccuracy: (0.005% + dial div)
A
Ratio arm
Range: 0.9999 to 100,010
ccuracy: 0.005%
Model 860A
1 kHz 1%
Detector selectivity
Response down at least 30 dB at 2d harmonic
Detector sensitivity
20 V to 10 mV (indicated on null meter and electron ray tube)
Model 865A
Range: Dc to 1 kHz
Accuracy: 1%
Detector sensitivity
5 V
Model 290A and 290B
Resistance (R)
Range: 0 to 1,200 kilohms in 7 ranges
Accuracy: 0.1% +1 dial division for highest range; 0.05% +1 dial
division for other five ranges; 0.1% +1 dial division for lowest range
Conductance (G)
Range: 0 to 1,200 milimhos in 7 ranges
Accuracy: 0.1% +1 dial division for highest range; 0.05% +1 dial
division for other five ranges; 0.1% +1 dial division for lowest range
Inductance (L): 1
Series
Range: 0 to 1,200 henrys in 7 ranges
Accuracy: 0.2% +1 dial division +1.2% X fkHz/Q for highest range;
0.1% +1 dial division +0.7% X fkHz/Q for other five ranges; 0.2% +1
dial division +0.7% X fkHz/Q for lowest range
Range: Q = 0 to 10.5 X fkHz in 3 ranges
Accuracy: 0.012 fkHz (1 + Q2) +0.02Q for highest; 0.012 fkHz (1 +
Q2) +0.02Q for other five and lowest ranges
Parallel
Range: 0 to 1,200 henrys in 7 ranges
Accuracy: 0.2% +1 dial division +1.2% X D X fkHz for highest range;
0.1% +1 dial division +0.7% X D X fkHz for other five ranges; 0.2%
+1 dial division +0.7% X D X fkHz for lowest range
Range: D = 0 to 10.5 x fkHz in 3 ranges
Accuracy: 0.012 fkHz (1 + D2) +0.02D for highest range; 0.007 fkHz
(1 + D2) +0.02D for other five and lowest range
See footnotes at end of table.
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