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Manuals
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Philips Manuals
Amplifier
PM8940
Instruction manual
Philips PM8940 Instruction Manual
Isolation amplifier
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Contents
Table of Contents
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Table of Contents
Contents
General Information
Introduction
Isolation Amplifier with Probe
Characteristics
Electrical Characteristics
Frequency Characteristics
Input HI X 10
Output
Power Supply
Common Mode Rejection Curve
Environmental Characteristics
Mechanical Characteristics
Accessory (Supplied with the Instrument)
Instruction Manual
Principle of Operation
Block Diagram
Installation Instructions
Important Safety Instructions (in Accordance with IEC 348)
Mains (Line) Voltage Setting
Claims
Battery Supply
Replacing of the Batteries
Operating Instructions
Switching on
Explanation of Controls and Sockets
Detailed Operating Information
Probe
Switching on the Instrument
Measurements
Probe, Input Connections
Preventive Maintenance
Cleaning the Nextel Suede Coating
Recalibration
Contents
Service Manual
Circuit Description
Attenuator
Preamplifier Stage
Timer/Control Stage
Timer/Control Stage, Principle Diagram
Power Supplies
Battery Power Supply
Main Power Supply
Inside View, Amplifier
Dismantling
Dismantling the Amplifier
Dismantling the Probe
Checking and Adjusting
Recommended Test Equipment
The Checking and Adjusting Procedure
Pre-Adjustments
Inside View, Probe with Measuring Set-Up
Probe with Screening
D.C. and A.C. Current Adjustments for Opto-Couplers (Static and Dynamic Range) at 10 Divisions
Gain Adjustment
LF Squarewave Response
HF Adjustment
Final Adjustment
Corrective Maintenance
Important Notes
Replacement
Standard Parts
Recalibration after Repair
Instrument Repacking
Removing a Single Push-Button Segment
Soldering Techniques
Trouble-Shooting
Trouble-Shooting Hints
Electrical Parts
Capacitors
Resistors
Semi Conductors
Integrated Circuits
Miscellaneous
Printed Wiring Board of Amplifier
Printed Wiring Board of Relay Driver
Printed Wiring Board of Probe
Relay Switching Circuit
Overall Circuit Diagram
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General Information
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Output
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Overall Circuit Diagram
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