Contents

Teledyne API Ultrafine Particle Monitor - Model 651

 

Front Panel

35

 

Display

35

 

Status Messages

36

 

Indicator Light

36

 

Back Panel

37

 

Internal Instrument Components

38

 

Optics Module

38

 

Vacuum Supply

38

 

Water System

39

 

Fans

39

 

Circuit Boards

39

 

Internal Clock

39

 

Data Communication Ports

40

 

CHAPTER 5

43

 

Instrument Operation

43

 

Operating Precautions

43

 

Recommended Operation Procedures

43

 

Outdoor Operation Procedures

43

 

Standard Operation Procedures

44

 

Warm-up

45

 

Display/User Settings

45

 

HOME Screen

45

 

STATUS Screens

45

 

SETUP Screens

47

 

TOTAL Screen

51

 

CHAPTER 6

53

 

Technical Description

53

 

Theory

53

 

Design of the Model 651

54

 

Sensor

54

 

Flow System

56

 

Critical Flow

56

 

Temperature Control

57

 

Vacuum Supply

57

 

Inlet Pressure Measurement

57

 

Water Removal System

58

 

Counting Efficiency and Response Time of the Model 651

58

 

CHAPTER 7

61

 

Particle Counting

61

 

Total Count Accuracy

61

 

Live-Time Counting

62

 

Concentration Measurement

63

 

Totalizer Mode

65

 

CHAPTER 8

67

 

Computer Interface, Commands, and Data Collection

67

 

Computer Interface

67

x

07506C DCN6727

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Image 12
Teledyne 651 operation manual Particle Counting