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PM8940
User Manuals: Philips PM8940 Isolation Amplifier
Manuals and User Guides for Philips PM8940 Isolation Amplifier. We have
1
Philips PM8940 Isolation Amplifier manual available for free PDF download: Instruction Manual
Philips PM8940 Instruction Manual (36 pages)
Isolation Amplifier
Brand:
Philips
| Category:
Amplifier
| Size: 2.21 MB
Table of Contents
Contents
3
General Information
6
Introduction
6
Isolation Amplifier with Probe
6
Characteristics
7
Electrical Characteristics
7
Frequency Characteristics
7
Input HI X 10
7
Output
8
Power Supply
8
Common Mode Rejection Curve
8
Environmental Characteristics
9
Mechanical Characteristics
9
Accessory (Supplied with the Instrument)
9
Instruction Manual
9
Principle of Operation
10
Block Diagram
10
Installation Instructions
11
Important Safety Instructions (in Accordance with IEC 348)
11
Mains (Line) Voltage Setting
11
Claims
11
Battery Supply
12
Replacing of the Batteries
12
Operating Instructions
13
Switching on
13
Explanation of Controls and Sockets
13
Detailed Operating Information
14
Probe
14
Switching on the Instrument
14
Measurements
14
Probe, Input Connections
15
Preventive Maintenance
16
Cleaning the Nextel Suede Coating
16
Recalibration
16
Contents
17
Service Manual
18
Circuit Description
18
Attenuator
18
Preamplifier Stage
18
Timer/Control Stage
19
Timer/Control Stage, Principle Diagram
19
Power Supplies
20
Battery Power Supply
20
Main Power Supply
20
Inside View, Amplifier
20
Dismantling
21
Dismantling the Amplifier
21
Dismantling the Probe
21
Checking and Adjusting
22
Recommended Test Equipment
22
The Checking and Adjusting Procedure
22
Pre-Adjustments
22
Inside View, Probe with Measuring Set-Up
23
Probe with Screening
23
D.C. and A.C. Current Adjustments for Opto-Couplers (Static and Dynamic Range) at 10 Divisions
24
Gain Adjustment
24
LF Squarewave Response
24
HF Adjustment
25
Final Adjustment
25
Corrective Maintenance
26
Important Notes
26
Replacement
26
Standard Parts
26
Recalibration after Repair
27
Instrument Repacking
27
Removing a Single Push-Button Segment
27
Soldering Techniques
27
Trouble-Shooting
28
Trouble-Shooting Hints
28
Electrical Parts
29
Capacitors
29
Resistors
30
Semi Conductors
31
Integrated Circuits
31
Miscellaneous
31
Printed Wiring Board of Amplifier
32
Printed Wiring Board of Relay Driver
33
Printed Wiring Board of Probe
33
Relay Switching Circuit
34
Overall Circuit Diagram
35
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