DEPARTMENT
OF
THE
ARMY
TECHNICAL
BULLETIN
CALIBRATION PROCEDURE FOR ELECTRONIC
VOLTMETER ME-227/U
Headquarters, Department of the Army, Washington, D.C.
11 October 1966
I. GENERAL
Paragraph
Page
Purpose and scope............................................................................................. 1
Reporting of technical bulletin improvements..................................................... 2
Description .......................................................................................................... 3
General instructions............................................................................................ 4
Differences among models ................................................................................. 5
II. CALIBRATION
Equipment required ............................................................................................ 6
Preliminary procedure......................................................................................... 7
Mid-zero ranges.................................................................................................. 8
10 mv and 25 mv ranges .................................................................................... 9
100 millivolt and up ranges ............................................................................... 10
Final procedure................................................................................................. 11
SECTION I
GENERAL
form will be completed using pencil, pen, or typewriter and
1. Purpose and Scope. a. This bulletin provides
forwarded direct to Commanding General, U.S. Army
information for the periodic calibration of Electronic
Electronics Command, ATTN: AMSEL-MR-NMP-AD, Fort
Voltmeter ME-227/U fig. 1 and is used by maintenance
Monmouth, N.J. 07703.
calibration personnel.
Since maintenance calibration
personnel are trained and qualified in the usage of test and
3. Description. Electronic Voltmeter ME-227/U is
measuring equipment, detailed instructions concerning the
operation and use of these equipments are not contain in
a general-purpose instrument for measuring d-c voltages
this bulletin.
in the range of 1 millivolt to 1,000 volts. Additional data
b. Integrated within this bulletin are illustrations
are listed in a through c below.
delineating the location of all controls and components
a.
Identification.
utilized in this calibration procedure as well as diagrams
showing equipment setup.
Equipment ground
connections are not necessarily shown in the diagrams.
Nomenclature .................... MILLIVOLTMETER
ME-227/U.
Federal stock number ........ 6625-892-5117.
2. Reporting
of
Technical
Bulletin
Size .................................... 7 x 7 x 12 in.
Improvements. The direct reporting by the individual user
Weight ............................... 25 lbs.
or errors, omissions, and recommendations for improving
Reference .......................... TM 11-6625-610-15.
this bulletin is authorized and encouraged. DA Form 2028
(Recommended Changes to DA Publications) will be used
for reporting these improvement recommendations. This
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