DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
CALIBRATION PROCEDURE FOR
MONITOR, ELECTRICAL POWER
MX-8570/APS-94D
Headquarters, Department of the Army, Washington, D.C.
12 March 1971
Paragraph
Page
GENERAL
Purpose and scope .......................................................................................................... 1
Reporting of technical bulletin improvements .................................................................. 2
Description ....................................................................................................................... 3
General instructions ....................................................................................................... 4
Difference among models ............................................................................................... 5
CALIBRATION'
Equipment required ......................................................................................................... 6
Preliminary procedures .................................................................................................... 7
VOLTAGE AC PHASE A meter ....................................................................................... 8
VOLTAGE AC PHASE B meter ....................................................................................... 9
VOLTAGE AC PHASE C meter ..................................................................................... 10
AMPERE AC PHASE A meter ...................................................................................... 11
AMPERE AC PHASE B meter ...................................................................................... 12
AMPERE AC PHASE C meter ....................................................................................... 13
VOLTAGE DC meter...................................................................................................... 14
AMPERE DC meter........................................................................................................ 15
Final procedure ............................................................................................................. 16
SECTION I
GENERAL
1. Purpose and Scope. a. This bulletin which is used
b.
This bulletin also contains illustrations that show the
by maintenance calibration personnel, provides in
location of all controls and components utilized in this
formation for the periodic calibration of Monitor,
Electrical Power MX-8570/APS-94D (fig. 1). Since
equipment setups. Equipment ground connections
are not necessarily shown in the dia grams.
use of calibration test and measuring equipment,
detailed instructions concerning the operation and use
of the standards are not contained in this bul letin.
2.
Reporting of Technical Bulletin Improvements.
The reporting of errors, omissions, and recommen
dations for improving this bulletin by the individual
1