Valhalla Scientific Inc. 2555A Calibrator
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Model:
2555A
Datum:
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Omschrijving:
AC-DC Current Calibrator
Informatie
The Valhalla Scientific Model 2555A AC-
DC Current Calibrator is a wide-range
voltage-to-current Converter that produces
an output current directly proportional to
the input AC or DC voltage. AC voltage
produces an output current of the same
frequency and phase that is directly
proportional in magnitude.
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Service-en gebruikershandleiding
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Taal:
english
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2017 04 10
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80673d19701b9f0446b56f48c309255a
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749
Informatie
SECTION I: UNPACKING A N » INSTALLATION
1-1
1-2
1-3
1-4
1-5
Unpacking
Initial Adjustments
Instructions for Bench Use
Instructions for Rack Mounting
Safety Precautions
SECTION II: SPECIFICATIONS AND OPTIONS
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
Description
Performance Specifications
Environmental Specifications
Physical Specifications
Accessories
Rack Mount Option R3
Cable Option BBL
100A Cable Option HMF
100A Cable Option HC
Buffer Amplifier Model 2009
Option RV Rear Mounted Voltage Input
Option R-1G0 Rear Mounted 100A Cables
Spare 100-ampere Connectors
SECTION III: OPERATION
3-1
3-2
3-3
3-4
3-5
3-6
Input Voltage
Range Selection
Output Current
Range Limit Indicators
Standby/Operate Switch
Error Sources
Figure 3-1. Block Diagram - DC Error Sources
Figure 3-2. Block Diagram - AC Error Sources
SECTION IV:
4-1
4-2
4-3
4-4
4-5
4-6
4-7
THEORY OF OPERATION
General
Power Supply
Voltage to Current Converter
Range Selection
Range Indicators
Standby/Operate Switch
Power Supplies (Detail)
Figure 4-1. Simplified Diagram Transconductance Amplifier
SECTION V: MAINTENANCE
5-1
5-2
5-2-1
5-2-2
5-2-3
5-3
5-4
Required Test Equipment
Calibration Procedure
Output Impedance Adjustment
Frequency Response
Range Indicator Adjustment
Troubleshooting
Amplifier Servicing
Table 5-1. Calibration Equipment Settings
Figure 5-1. Output Impedance Test Equipment Set-Up
Figure 5-2. DC Calibration Test Equipment Set-Up
Figure 5-3. AC Frequency Response Test Equipment Set-Up
SECTION VI: MANUAL CHANGES AND ADDENDUMS
SECTION VII: PARTS LISTS