*TB 9-4931-217-40
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
CALIBRATION PROCEDURE FOR RESISTANCE
BRIDGE, ESI MODEL 230B;
AC GENERATOR DETECTOR, ESI MODEL 860A;
AC/DC GENERATOR DETECTOR, ESI MODEL 865A;
IMPEDANCE BRIDGE, ESI MODELS 290A AND B;
DC GENERATOR DETECTOR, ESI MODEL 801;
AND KELVIN RESISTANCE BRIDGE,
ESI MODEL SP2979
Headquarters, Department of the Army, Washington, DC
31 May 2007
Distribution Statement A: Approved for public release; distribution is unlimited.
REPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTS
You can 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,
US 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 FOR
RESISTANCE BRIDGE, MODEL 230B
Preliminary instructions......................................
Equipment Setup .................................................
Rheostat arm zero resistance and calibration....
_________
*This bulletin supersedes TB 9-4931-217-35, 30 April 1980, including all changes.