HP 431B Calibration Procedure page 7

5. Accessories Required. The accessories listed in table 3 are issued with the secondary
transfer calibration standards sets 6695-00-621-7877 and 4931-00-525-8175 and
maintenance calibration shelter AN/TSM-55.
substituted by equivalent items unless specifically prohibited.
Item Common name
A1 AUTOTRANSFORMER
A2 DC POWER SUPPLY
A3 DC VOLTMETER
A4 FREQUENCY
COUNTER
A5 POWER METER
CALIBRATOR
A6 RESISTANCE
DECADE
A7 RESISTANCE
DECADE
A8 THERMISTOR
MOUNT
1
Not used if power meter calibrator (A5) is available.
Item Common name
B1 Adapter
B2 Adapter
B3 Cable
B4 Cable
B5 Cable
B6 Termination
1
Three required when using maintenance standard set 4931-00-525-8175.
Table 2. Minimum Specifications of Equipment Required
Minimum use
specifications
Range: 105 to 125 V ac General Radio,
Range: 0 to 25 vdc
1
Range: 0 5 to 25 vdc
Accuracy: ±0.05%
Range: 9950 to 10,275
Hz
Accuracy: ±0.025%
Range: 0.01 to 10 mw
Accuracy: ±0.25%
Range: 1 k ohm
1
Accuracy: ±0.05%
Range: 10 k ohm
1
Accuracy: Nominal
Range: 10 MHz to 12.4
GHz
Accuracy: ±5%
10 MHz to 10 GHz
8.2 to 12.4 GHz
Table 3. Accessories Required
Double banana jack to BNC plug (7909401)
Double banana jack to phone plug (7907566)
24-in., single banana plug terminations (red) (7907497)
1
24-in., single banana plug terminations (black) (7907498)
1
36-in., BNC plug to alligator clips (7909410)
50-ohm, N jack (374 NM)
When necessary, these items may be
Manufacturer and model
(part number)
Transfer Maintenance
(6625-00-621- (AN/TSM-55)
7877)
TS 510/U
Model
W10MT3AS3
(7910809)
TS 2734/U
Dana, Model John Fluke,
5703-S-2127 Model 882AB
(7912606) (TS-2843/U)
Systron- AN/USM-
Donner 257A
Model 1037-
M (7910823)
(P/O
7910628)
Hewlett- AN/USM-317
Packard
8402B
(7911026)
Hewlett-
Packard,
Models MX-7772/U
478A
(7910461)
X486A Hewlett-
(7910460) Packard,
Model X486A
Description and Part Number
TB 9-6625-086-35
Maintenance
(4931-00-525-
8175)
General Radio,
Model
W10MT3AS3
(7910809)
John Fluke,
Model 760A
Hewlett-
Packard, Model
3490A
Hewlett-
Packard, Model
5245L
Biddle-Gray,
Model 71-631
(7910328)
CMC, Model
240C (7907234)
Hewlett-
Packard, Model
478A (7910461)
3