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®
5220A
Transconductance Amplifier
Instruction Manual
PN 491936
June 1979 Rev. 3, 6/97
© 1997 Fluke Corporation. All rights reserved. Printed in USA
All product names are trademarks of their respective companies.
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LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke’s opinion, has been mi
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Table of Contents Section Title Page 1 Introduction and Specifications........................................................ 1-1 1-1. Introduction .......................................................................................... 1-1 1-2. Specifications ....................................................................................... 1-2 2 Operating Instructions....................................................................... 2-1 2-1. Introduction ..........................
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5220A Instruction Manual 3-8. Preamplifier...................................................................................... 3-6 3-9. A6 Driver ......................................................................................... 3-7 3-10. A7 Output......................................................................................... 3-9 3-11. A8 Analog Control........................................................................... 3-10 3-12. A9 Front Panel ........................
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Contents (continued) 4-40. Resistor R13..................................................................................... 4-17 4-41. Troubleshooting.................................................................................... 4-18 5 List of Replaceable Parts................................................................... 5-1 5-1. Introduction .......................................................................................... 5-1 5-2. How to Obtain Parts ......................
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5220A Instruction Manual iv
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List of Tables Table Title Page 1-1. Accessories ............................................................................................................ 1-2 1-2. Specifications......................................................................................................... 1-2 2-1. Controls, Indicators, and Connectors..................................................................... 2-4 3-1. Effect of Reset Command on A10 Logic and A9 Front Panel............................... 3-
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5220A Instruction Manual vi
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List of Figures Figure Title Page 5220A Transconductance Amplifier...................................................................... x 1-1. Outline Drawings................................................................................................... 1-5 2-1. Controls, Indicators, and Connectors..................................................................... 2-3 2-2. Maximum Load Inductance vs Frequency............................................................. 2-8 2-3. Typical T
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5220A Instruction Manual 6-1. Rack Mounting Kit ................................................................................................ 6-2 6-2. Rack Slide Kit........................................................................................................ 6-4 7-1. Interconnect Diagram............................................................................................. 7-2 7-2. Chassis Wiring.................................................................................
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Contents (continued) ix
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5220A Instruction Manual ajs36f.eps 5220A Transconductance Amplifier x
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Section 1 Introduction and Specifications 1-1. Introduction The Model 5220A is a transconductance amplifier designed to operate as either a stand alone unit or an extension of the Fluke Model 5100 Series Calibrator. Functionally, the instrument operates as a precision ac/dc current source for calibrating current shunts and/or current meters. As the name (transconductance amplifier) implies, the output current level is a function of an input control voltage. The input/output ratio is established
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5 220A Instruction Manual selection switches are inside the 5220A. Refer to Section 4 of this manual for information on how to properly set the line power switches. Accessories available for use with the 5220A are listed and described in Table 1-1. The rack mounting kits are designed for use with a standard 19-inch equipment rack. The Model Y5020A is a precision current shunt recommended for use in calibrating the 5220A. Specify both model number and description when ordering accessories. Table
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Introduction and Specifications Specifications 1 Table 1-2. Specifications (cont.) Electromagnetic Compatibility This instrument is designed to operate in Standard Laboratory environments where in electromagnetic environment is highly controlled. If used in areas with RF fields >0.4 V/m there could be errors in measurement. DC Mode (including 5100 Series B) Output Range ±1 to ±19.9999 A Accuracy of Output ±(0.025 % of selected output + 1 mA) Resolution ±0.1 mA Temperature Coefficient ±(0.003 % o
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5 220A Instruction Manual Table 1-2. Specifications (cont.) General Load Capability Drives all resistive and capacitive loads consistent with current and compliance voltage capability. For inductive loads greater than 1 μH and less than maximum inductive loads, output current is limited to 16 A rms (22.6 A peak) Maximum Isolation Voltage ±20 V dc or 20 V ac rms Temperature Range Operating: 0 °C to 50 ° C Storage: +20 °C to 56 °C Relative Humidity 50 % to 50 °C, 75 % to 40 °C, 95 % to 25 °C Altit
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Introduction and Specifications Specifications 1 ajs01f.wmf Figure1-1. Outline Drawings 1-5
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5 220A Instruction Manual 1-6
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Section 2 Operating Instructions 2-1. Introduction This section of the manual contains information concerning the installation and operation of the Model 5220A transconductance Amplifier. It is recommended that the contents of this section be read and understood before any attempt is made to operate the unit. Should any difficulties arise during operation, contact your nearest John Fluke Sales representative, or the John Fluke Mfg. Co., Inc., P.O. Box C9090, Everett, WA 98206; telephone (206) 34
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5 220A Instruction Manual 2-4. Fuse Replacement 2-5. AC Line Fuse The ac line fuse is accessible by way of a rear-panel fuse holder located to the left of the input power connector. If fuse replacement is required, disconnect the 5220A from line power and remove the fuse cap and fuse (twist the fuse cap ccw using a screw driver). Select and install a replacement fuse whose rating is compatible with the local line voltage. 1. 100 to 120 V ac use fuse type MDA 3 A 2. 200 to 240 V ac use fuse type
