Ludlum 12-4 Manuals

Ludlum 12-4 Manuals

Manuals and User Guides for Ludlum 12-4. We have 1 Ludlum 12-4 manual available for free PDF download: User Manual

Ludlum 12-4 User Manual

Ludlum 12-4 User Manual (42 pages)

SURVEY METER WITH HE-3 NEUTRON DETECTOR

Brand: Ludlum | Category: Measuring Instruments | Size: 2 MB

Table of Contents

Statement of Warranty
3
Table of Contents
4
Introduction

6
Getting Started

7
Specifications

10
Identification of Controls and Functions

12
Safety Considerations

14
Calibration and Maintenance

16
- Calibration
  16
  - Establishing an Operating Point
    16
  - Equipment Required for Calibration
    16
  - Initial Calibration Procedures
    17
  - Detector Plateau
    18
  - Gamma Rejection
    19
  - Instrument Calibration
    19
  - Electronic Calibration
    20
- Maintenance
  20
  - Recalibration
    21
  - Batteries
    21
Troubleshooting

22
- Troubleshooting Electronics that Utilize a Proportional Detector
  22
Technical Theory of Operation

25
- MAIN BOARD (Drawing 464 × 275 3 Sheets)
  25
  - Input
    25
  - Amplifier
    25
  - Discriminator
    25
  - Audio
    25
  - Scale Ranging
    26
  - Digital Analog Converter
    26
  - Ratemeter Drive Circuit
    26
  - HV Meter Drive
    26
  - Battery Test
    26
  - Switching Convertor
    27
  - Feedback
    27
  - Voltage Control
    27
  - Filtering
    27
Recycling

28
Parts List

29

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