Teledyne 651 operation manual Particle Counting

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

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