Electro Scientific Industries DT 72A Test Set
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Model:
DT 72A
Date:
1975
Category:
Group:
Description:
Decade Transformer
Information
The MODEL DT 72A DEKATRAN DECADE TRANSFORMER is a laboratory
standard divider for establishing either voltage or current
ratios at audio frequencies.
The DEKATRAN circuit is an auto-transformer with a variable
tap. The tap position is indicated by the dial reading which
gives the ratio of output turns to input turns. Additional
windings extend the ratio above and below the input so that
voltage ratios of -0. 1 and +1. 1 are available.
The accuracy of the DEKATRAN is established by
intercomparisons over a wide range of frequencies and dial
settings, traceable to a special NBS -certified transformer.
Manual type:
User Manual
Pages:
38
Size:
9.12 Mbytes (9567265 Bytes)
Language:
english
Revision:
Manual ID:
7203
Date:
1975 09 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2016 09 12
MD5:
cf5111bdace2baa04b7f11c2de16692c
Downloads:
507
Information
I INTRODUCTION
1.1 DESCRIPTION 1,1-1
1.2 FEATURES 1.2-1
1.3 SPECIFICATIONS 1.3-1
II OPERATION
2. 1 VOLTMETER CALIBRATION 2. 1 -1
2.2 AMMETER CALIBRATION 2.2-1
2. 3 VOLTAGE DIVIDER CALIBRATION 2.3-1
2.4 TRANSFORMER RATIO CALIBRATION 2.4-1 2. 5 IMPEDANCE
COMPARISON MEASUREMENTS 2.5-1
2.5.1 Capacitance Comparisons 2.5-5
III THEORY
3.1 SOURCES OF ERROR 3.1-1
3.2 LOADING EFFECTS 3.2-1
IV MAINTENANCE
4. 1 ACCESSING COMPONENTS 4. 1 -1
4. 2 PERIODIC MAINTENANCE 4. 1 -1
4. 2. 1 Visual Inspection 4. 1 -1
4.2.2 Cleaning and Lubrication 4.2-1
4.3 REPLACING THE DUST COVER 4.2-1
4.4 SCHEMATIC DIAGRAM 4.2-1
V PARTS LIST 5-1