*TB 9-6625-2287-35
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
CALIBRATION PROCEDURE FOR
ELECTRONIC VOLTMETERS
AN/URM-145 (ME-247/U) AND
AN/URM-145A (ME-247A/U)
(BOONTON, MODEL 91CA)
Headquarters, Department of the Army, Washington, DC
15 October 2003
Distribution Statement A: Approved for public release; distribution is unlimited.
REPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTS
You can help improve this manual. If you find any mistakes or if you know of a way to
improve these procedures, please let us know. Mail your letter or DA Form 2028
(Recommended Changes to Publications and Blank Forms) directly to: Commander, U. S.
Army Aviation and Missile Command, ATTN: AMSAM-MMC-MA-NP, Redstone Arsenal, AL
35898-5000. A reply will be furnished to you. You may also provide DA Form 2028
information to AMCOM via e-mail, fax, or the World Wide Web. Our FAX number is: DSN
788-6546 or Commercial 256-842-6546. Our e-mail address is: 2028@redstone.army.mil.
Instructions for sending an electronic 2028 may be found at the back of this manual. For the
World Wide Web, use: https://amcom2028.redstone.army.mil.
Paragraph
Page
IDENTIFICATION AND DESCRIPTION
Test instrument identification .............................
Forms, records, and reports..................................
Calibration description .........................................
EQUIPMENT REQUIREMENTS
Equipment required..............................................
Accessories required..............................................
CALIBRATION PROCESS
Preliminary instructions ......................................
Equipment setup ...................................................
Accuracy and linearity ..........................................
Frequency response...............................................
Final procedure .....................................................
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*This technical bulletin supersedes TB 9-6625-2287-35 dated 16 November 1992.
