Ludlum Measurements 218039 Manuals

Manuals and User Guides for Ludlum Measurements 218039. We have 1 Ludlum Measurements 218039 manual available for free PDF download: Technical Manual

Ludlum Measurements 218039 Technical Manual

Ludlum Measurements 218039 Technical Manual (46 pages)

SURVEY METER

Brand: Ludlum Measurements | Category: Measuring Instruments | Size: 3 MB

Table of Contents

Table of Contents
4
Introduction
6
Getting Started
7
Unpacking and Repacking
7
Battery Installation
7
Connecting a Detector to the Instrument
8
Battery Test
8
Instrument Test
8
Reading the Meter Face Dial
9
Operational Check
12
Specifications
13
Identification of Controls and Functions
15
Safety Considerations
17
Environmental Conditions for Normal Use
17
Warning Markings and Symbols
17
Cleaning and Maintenance Precautions
18
Calibration and Maintenance
19
Calibration
19
True Reading Calibration
19
Internal Calibration after Overhaul
20
Establishing an Operating Point
21
Maintenance
22
Recalibration
23
Batteries
23
Troubleshooting
24
Troubleshooting Electronics Which Utilize a GM, Scintillator, or Proportional Detector
24
Troubleshooting GM Detectors
26
Troubleshooting Scintillators
27
Troubleshooting Proportional Detectors
27
Technical Theory of Operation
29
Main Board (Drawing 464 × 275 3 Sheets)
29
Input
29
Amplifier
29
Discriminator
29
Audio
29
Scale Ranging
30
Digital Analog Converter
30
Ratemeter Drive Circuit
30
HV Meter Drive
30
Battery Test
30
Switching Convertor
31
Feedback
31
Voltage Control
31
Filtering
31
Recycling
32
Parts List
33
Main Board, Drawing 464 × 275
33
HV Power Supply Board, Drawing 464 × 243
38
Wiring Diagram, Drawing 464 × 309
38

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