Teledyne 651 - page 12

Contents Teledyne API Ultrafine Particle Monitor - Model 651
x 07506C DCN6727
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