Geräte Informationen:

Keithley 150B Digital Multimeter
Hersteller:
Keithley
Modell: 150B
Datum: 1967
Kategorie: Messgeräte
Gruppe: Digital Multimeter
Beschreibung: Microvolt Ammeter
Informationen:
                                     GENERAL

The Keithley Model 150B Microvolt Ammeter is an extremely
sensitive instrument which measures voltages from 0.3
microvolt to 1 volt and currents from 0.3 nanoampere to 1 mi
11iampere. It can be used as a voltmeter, null detector or
an ammeter with either battery or line power operation.

AS A MICROVOLTMETER.

a. The Model 150B is ideal as a microvoltmeter for measuring
semiconductor resistivity, thermopile and thermocouple
potentials, Hall effect, contact resistances, biologically
generated emf's, electrochemical potentials and strain
guages emf's.

b. The Model 150B has input noise less than 25 nanovolts
peak-to-peak; high input resistance and low zero shift;
excellent zero stability; very high 1ine-frequency rejection
and common mode rejection; battery operation; zero
suppression; special low-thermal input circuitry; two
available outputs.

c. With these features, the Model 150B permits excellent
resolution; maintains measurement accuracy even from high
resistance sources; is ideal for long-term measurements;
detects dc signals in the presence of large ac voltages and
is virtually insensitive to ac or dc voltages applied
between circuit and chassis ground; disconnects from power
lines for improved isolation; measures small changes in dc
signals; reduces temperature and shielding problems;
provides outputs where either filtering is needed or fast
response or greater output power is needed.

AS A NULL DETECTOR.

a. As a null detector the Model 150B is excellent for use in
ratio measurements and in potentiometer and bridge circuits.

b. The Microvolt Ammeter's outstanding features as a null
detector are: very good resolution; high line frequency and
common mode rejection; isolation from chassis ground to
input terminals; battery operation; high input resistance;
floating capability; low zero shift; zero suppression.

c. Because of these features the Model 150B has resolution
comparable to the maximum usable resolution of most
potentiometers and bridges; may be simply connected to the
terminals of a null circuit; is very insensitive to common
mode voltages developed in the null circuit; can be used in
most potentiometer and bridge circuits without off-null
loading; accurately detects a null regardless of the setting
on most potentiometers and bridges; compensates for thermal
emf's generated in the null circuit.

AS AN AMMETER.

a. The Model 150B has general use in research, design and
production test facilities.

It is useful for making low voltage drop, in-circuit
measurements as well as measuring the output of radiation
detectors, phototubes and other current generating transducers.

b. The instrument has low voltage drop for measuring
currents in very low-voltage circuits low zero drift for
measuring long-term current; excellent floating capabilities
for measuring ungrounded sources; and low input noise,
giving excellent resolution.

Folgende Anleitungen sind hier verfügbar:

Dokumenttyp: Service- und Bedienungsanleitung Keithley-11200-Manual-Page-1-Picture
Seitenanzahl: 58
Dateigröße: 2.86 Mbytes (2994306 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer:
Datum: 01 Januar 1967
Qualität: Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
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MD5: 10a0c1a129c5432e6c970cd9d416a332
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Informationen:
MODEL	150B SPECIFICATIONS ... 
GENERAL DESCRIPTION ... 	
	
1-1.	General ... 
1-2.	As a Microvoltmeter ... 
1-3.	As a Null Detector  ... 
1-4.	
	
OPERATION ... 	
	
2-1.	Mode of Operation ... 
2-2.	Battery Operation ... 
2-3.	Microvolt and Null Detector
	Operating Procedures  ... 
2-4.	Ammeter Operating
	Procedures  ... 
2-5.	Zero Suppress Operation. . .
2-6.	
2-7.	Recorder Outputs  ... 
2-8.	Synchronizing Terminals. . .
2-9.	Differential (Floating)
	
2-10.	Accuracy Consideration . . .
2-11.	Thermal Noise ...  . .
2-12.	Input Resistance  ... 
2-13.	Thermal Emf 1 s ...  .
2-14.	Shielding ... 
2-15.	Operating From Source Other
	Than 117 Volts, 60 cps . . .
2-16.	Accessories For Input
	.Connections ... 
	
CIRCUIT DESCRIPTION ... 	
3-1.	General.  ...   ... 
3-2.	
3-3.	AC Amplifier  ... 
3-4.	Demodulator ... 
3-5.	
3-6.	Zero Suppression  ... 
3-7.	
3-8.	Battery Charging Circuit . .
4.	MAINTENANCE ... 	
	4-1.	
	4-2.	Parts Replacement.  ... 
	4-3.	Mechanical Chopper
		Replacement ... 
	4 -4.	Troubleshooting ... 
	4-5.	Preliminary Troubleshooting
		Procedures  ... 
	4-6.	Check Out and Calibration
		Procedures  ... 
	4-7.	Power Supply Check Out
		and Calibration ... 
	4-8.	Amplifier Check Out
		and Calibration ... 
		
5.	ACCESSORIES ... 	
		
	5-1.	Model 4006 Rack
		Mounting.Kit  ... 
	5-2.	Model 4007 Dual Rack
		
	5-3.	Model 370 Recorder  ... 
		
6.	REPLACEABLE PARTS ... 	
		
	6-1.	Replaceable Parts List . ,
	6-2.	How to Order Parts  ... 
		Model 150B Replaceable
		Parts List .  ... 
		Models 1483, 1484
		Replaceable Parts List . .
		Schematic Diagram 20350E .
		Schematic Diagram 20357D .
*	Change	Notice Last
		
		
		
		
Keithley-11200-Manual-Page-1-Picture


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