Equipment information

Electro Scientific Industries DT 72A Test Set
Manufacturer:
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.

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User Manual
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:
503

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

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