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General Resistance Instruments DAS 70 Netzteil
General Resistance Instruments
Modell: DAS 70
Datum: 1977
Kategorie: Messgeräte
Gruppe: Netzteil
Beschreibung: Dial A Source
                                    The General Resistance D A S is a versatile laboratory
Instrument that provides high precision and stability In a
compact portable unit. It Is so designed and constructed as
to be essentially Independent of ambient temperature and
loading within the instrument ratings.

The DAS has the following basic functional modules?

1	* A chopper-stabilized operational amplifier.

2.	A highly stable reference source.

3.	A Kelvin-Varley potential divider.

The D A S is contained in a package whose envelope Is:

Series 40 & 50: 6-7/16" h x 6 " w x 7" d

Series 60, 70 & 80? 7" h x 8" w x 10-5/16" d

The D A S 50 and 80 have built-in constant-current operation
while the DAS 40, 60, and 70 can be used with an inexpensive
adaptor to provide constant-current operation. Remote
sensing terminals are provided to furnish the calibrated
voltage at locations distant from the Dial-A-Source output

The remote sensing capability automatically compensates for
the voltage drop in the connecting cables.

Folgende Handbücher sind hierfür verfügbar:

Dokumenttyp: Service- und Bedienungsanleitung General Resistance-9309-Manual-Page-1-Picture
Seitenanzahl: 39
Dateigröße: 25.38 Mbytes (26607689 Bytes)
Sprache: Englisch
Datum: 01 Januar 1977
Qualität: Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
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Table of contents

m	List of illustrations

iii	Warranty

1.0	Introduction and description

1	. 1	Genera I

lo2	Unit specifications

2.0	In i t i a I se t = up

2.1	Unpacking and inspection

2.2	In i t i a I tu rn = on

3.0	Description of operating controls

3	. 0 o 1	Power switch

3.0.2	Range switch

3.0.3	Polarity switch

3.0.4	Voltage decade switches

8.0.5	Output {function switch

3.0.6	Current limit control

3.0.7	Constant-=curp®nt selection

3.1	Calibration controls

3.1.1	Reference calibration

3.1.2	Amplifier zero^set

3.2	Operating instructions

3.2.1	Power

3.2.2	Warmup

3.2.3	Range

3.2.4	Polarity
3.2	,5	Output voltage

3.2.6	Remote sensing

3.2.7	Load impedance limits

3.2.8	Constant current operation

3.2.9	Current limit control

3.2.10	Optional low nols© attenuator (LNA)

4.0	Maintenance and calibration

4.1	Maintenance and repair

4.2	Operational check

4.3	Calibration

4.3.1	Amplifier zero-set

4.3.2	Reference voltage calibration

4.3.3	Test of Kelvin-Varley divider

4	. 3 9 4	Recommended test equipment list
General Resistance-9309-Manual-Page-1-Picture

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