HP 431B, Calibration Procedure

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PIN: 010318-002
TB 9-6625-086-35
Change 2
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
CALIBRATION PROCEDURE FOR
POWER METER, HEWLETT-PACKARD,
MODELS 431B AND 431C (AN/USM-260)
Headquarters, Department of the Army, Washington, DC
2 August 1985
TB 9-6625-086-35, 12 December 1975, is changed as follows:
Page 1, paragraph 2 . In lines 4 and 5, change “TM 38-750” to read “750-25.”
Paragraph 3 . In lines 7 and 8, changes address to read “Commander, US Army
TMDE Support Group, ATTN: AMXTM-LPP, Redstone Arsenal, AL 35898-5400.”
Page 7, paragraph 12a(2) is superseded as follows;
(2) Set resistance decade (A7) to 10 k Ω . This 10 k Ω value can be decreased as
necessary to obtain full-scale indication on TI.
Page 9, paragraph 15b is superseded as follows:
b . When all parameters are within tolerance, annotate and affix DA Label 80 (US
Army Calibration Instrument). When the TI receives limited or special calibration,
annotate and affix DA Label 163 (US Army Limited or Special Calibration). When the TI
cannot be adjusted within tolerance, repair the TI in accordance with the maintenance
manual. When repair is delayed for any reason or the TI cannot be repaired with local
resources, annotate and affix DA Form 2417 (US Army Calibration System Rejected
Instrument) and inform the owner/user accordingly in accordance with TB 750-25.
By Order of the Secretary of the Army:
JOHN A. WICKHAM, JR.
General, United States Army
Chief of Staff
Official:
DON J. DELANDRO
Brigadier General, United States Army
The Adjutant General
Distribution:
To be distributed in accordance with DA Form 12-34C, Block No. 319, requirements for
calibration publications.
US GOVERNMENT PRINTING OFFICE: 1985 - - 544-007/20156 Region #4