HP 431B Calibration Procedure page 12

TB 9-6625-086-35
(6) Position the controls of the power meter calibrator as follows:
(a) RANGE (MW) switch to .01.
(b) FUNCTION switch to CAL.
After each change in position of TI RANGE switch, turn the
FUNCTION switch of power meter calibrator to the CURRENT
OFF position and adjust the TI zero controls for a zero
indication.
(7) Turn the TI and power meter calibrator RANGE switches to the settings listed
in table 4. If the indications are not within limits specified, perform b below.
Table 4. Range and Trucking Performance Check (with Power Meter Calibrator)
Power Meter
Test Instrument Calibrator
RANGE switch RANGE (MW)
settings switch settings
.01
.03
.1
.3
1
3
10
10
1
10
10
10
8
Test Instrument Indications (mw)
Min
.01 0.0098
(0.0097)
.03 0.0295
(0.0291)
.1 0.099
(0.097)
.3 0.297
(0.291)
1 0.990
(0.970)
3 2.970
(2.910)
10 9.900
(9.700)
8 7.9
(7.7)
6 5.9
(5.7)
4 3.9
(3.7)
2 1.9
(1.7)
NOTE
(Readings for Model 431B
are in parenthesis)
Max
0.0102
(0.0103)
0.0305
(0.0309)
0.101
(0.103)
0.303
(0.309)
1.010
(1.030)
3.030
(3.090)
10.100
(10.300)
8.1
(8.3)
6.1
(6.3)
4.1
(4.3)
2.1
(2.3)
Adjustments for Model
431C (fig. 3)
200-Ohm 100-Ohm
Mount Mount
R14 R1
R13 R2
R12 R3
R11 R4
R10 R5
R9 R6
R8 R7