Teledyne 651 User Manual

OPERATION MANUAL

Ultrafine Particle Monitor

MODEL 651

© Teledyne Advanced Pollution Instrument (TAPI)

9480 Carroll Park Drive

San Diego, CA 92121-5201

USA

Toll-free Phone: [phone]

Phone: [phone]

Fax: [phone]

Email: [e-mail]

Website: http://www.teledyne-api.com/

Copyright 2011-2013 07506C DCN6727
Teledyne Advanced Pollution Instrumentation 17 June 2013

About Teledyne Advanced Pollution Instrumentation (TAPI)

Teledyne Advanced Pollution Instrumentation (TAPI), a business unit of Teledyne Instruments, Inc., is a
world leader in the design and manufacture of precision analytical instrumentation for trace gas analysis.
Founded in San Diego, California, in 1988, TAPI introduced a complete line of Air Quality Monitoring
(AQM) instrumentation, which complied with the Environmental Protection Administration (EPA)
requirements for the measurement of criteria gases consisting of CO, SO

Since that time, TAPI has introduced many features to these products and has grown to the position of
the leading producer of AQM instrumentation, providing state of the art analytical products on a world
wide basis. Our instruments comply with US EPA regulations as well as a number of other international
requirements.

NOTICE OF COPYRIGHT

© 2011-2013 Teledyne Advanced Pollution Instrumentation. All rights reserved.

TRADEMARKS

All trademarks, registered trademarks, brand names or product names appearing in this document are
the property of their respective owners and are used herein for identification purposes only.

, NOX and Ozone.

2

07506C DCN6727 i

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ii 07506C DCN6727

Safety Messages

Important safety messages are provided throughout this manual for the purpose of avoiding personal
injury or instrument damage. Please read these messages carefully. Each safety message is associated
with a safety alert symbol, and are placed throughout this manual; the safety symbols are also located
inside the instrument. It is imperative that you pay close attention to these messages, the descriptions of
which are as follows:

WARNING: Electrical Shock Hazard

HAZARD: Strong oxidizer

GENERAL WARNING/CAUTION: Read the accompanying message for
specific information.

CAUTION: Hot Surface Warning

Note

Do Not Touch: Touching some parts of the instrument without protection
or proper tools could result in damage to the part(s) and/or the

This instrument should only be used for the purpose and in the manner described
in this manual. If you use this instrument in a manner other than that for which it
was intended, unpredictable behavior could ensue with possible hazardous
consequences.

NEVER use any gas analyzer to sample combustible gas(es)!

instrument.

Technician Symbol: All operations marked with this symbol are to be
performed by qualified maintenance personnel only.

Electrical Ground: This symbol inside the instrument marks the central
safety grounding point for the instrument.

Laser radiation warning. Take appropriate cautionary measures to avoid
exposure to radiation.

CAUTION

For Technical Assistance regarding the use and maintenance of this
instrument or any other Teledyne API product, please contact Teledyne API’s
Technical Support Department:

Telephone: [phone] E mail: sda_techsupport@tele dyne.com

or access the service options on our website: http://www.teledyne-api.com/

07506C DCN6727 iii

.

Laser Safety

The Ultrafine Particle Monitor – Model 651 is a Class I laser-based instrument. During normal operation,
you will not be exposed to laser radiation. To avoid exposing yourself at any time to hazardous radiation
in the form of intense, focused visible light (exposure to this light can cause blindness), take these
precautions:

 Do not remove any parts from the instrument unless you are specifically told to do so in

this manual.

 Do not remove the instrument housing or cover while power is supplied to the

instrument.

WARNING

The use of controls, adjustments, or procedures other than those specified in this

manual may result in exposure to hazardous optical radiation, which can cause
blindness.

iv 07506C DCN6727

Warranty

WARRANTY POLICY (02024F)

Teledyne Advanced Pollution Instrumentation (TAPI), a business unit of Teledyne
Instruments, Inc., provides that:

Prior to shipment, TAPI equipment is thoroughly inspected and tested. Should
equipment failure occur, TAPI assures its customers that prompt service and support
will be available.

COVERAGE

After the warranty period and throughout the equipment lifetime, TAPI stands ready
to provide on-site or in-plant service at reasonable rates similar to those of other
manufacturers in the industry. All maintenance and the first level of field
troubleshooting are to be performed by the customer.

NON-TAPI MANUFACTURED EQUIPMENT

Equipment provided but not manufactured by TAPI is warranted and will be repaired
to the extent and according to the current terms and conditions of the respective
equipment manufacturer’s warranty.

PRODUCT RETURN

Failure to comply with proper anti-Electro-Static Discharge (ESD) handling and
packing instructions and Return Merchandise Authorization (RMA) procedures
when returning parts for repair or calibration may void your warranty. For anti­ESD handling and packing instructions please refer to “Packing Components for
Return to Teledyne API’s Customer Service” in the Primer on Electro-Static
Discharge section of this manual, and for RMA procedures please refer to our
Website at http://www.teledyne-api.com
Authorization.

All units or components returned to Teledyne API should be properly packed for
handling and returned freight prepaid to the nearest designated Service Center.
After the repair, the equipment will be returned, freight prepaid.

The complete Terms and Conditions of Sale can be reviewed at

http://www.teledyne-api.com/terms_and_conditions.asp

CAUTION – Avoid Warranty Invalidation

under Customer Support > Return

07506C DCN6727 v

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vi 07506C DCN6727

About This Manual

This Model 651 manual, PN 07506, is accompanied by a Quick Guide document, PN 07507, which
provides critical information that is critical to the proper and safe initial setup and timely
maintenance, and proper handling of this instrument.

CAUTION – AVOID WARRANTY INVALIDATION

Failure to comply with proper setup, maintenance and handling of this instrument
will void the warranty. Please read both the Quick Guide and this Operation
Manual before proceeding with operation of this instrument.

Revision History

2013, June, Model 651 Manual, 07506C, DCN 6727, updates to reflect hardware changes
2012, March, Model 651 Manual, 07506B, DCN 6400, administrative corrections and specs corrections:

Inlet pressure, power requirements – max W)

2012, March, Model 651 Quick-guide (separate document), 07507B, DCN 6401, administrative correction.

2011, August, Model 651 Manual, PN 07506 Rev A, DCN 6190, Initial Release
2011, August, Model 651 Quick-Guide (separate document), PN 07507 Rev A, DCN 6190, Initial Release

07506C DCN6727 vii

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viii 07506C DCN6727

Contents

OPERATION MANUAL....................................................................................... i

About Teledyne Advanced Pollution Instrumentation (TAPI) .................i

Safety Messages .................................................................................. iii

Laser Safety....................................................................................... iv

Warranty................................................................................................. v

About This Manual ............................................................................... vii

Revision History ................................................................................... vii

Contents................................................................................................................. ix

Figures ................................................................................................. xii

Tables ..................................................................................................xiii

How This Manual is Organized.......................................................................... xv

Purpose................................................................................................ xv

Organization......................................................................................... xv

Related Product Literature .................................................................. xvi

Getting Help ........................................................................................ xvi

CHAPTER 1.........................................................................................................17

Product Overview................................................................................................ 17

Product Description..............................................................................17

Specifications ....................................................................................... 18

How it Works ........................................................................................ 20

CHAPTER 2.........................................................................................................23

Unpacking and Setting Up the Model 651......................................................... 23

Packing List..........................................................................................23

Unpacking ............................................................................................24

Installation ............................................................................................ 25

Equipment......................................................................................... 25

Remove Protective Caps .................................................................. 25

Connecting the Water Supply...........................................................25

Connecting the Water Exhaust Tube................................................27

Connecting the Aerosol Supply ........................................................27

Installing the Model 651 in a Rack....................................................30

Connecting the USB Cable...............................................................31

Connecting Power and Warming up the Model 651.........................31

CHAPTER 3.........................................................................................................33

Moving and Shipping the Model 651................................................................. 33

Moving the Model 651 Short Distances............................................33

Preparing the Model 651 for Shipping and Storage .........................33

CHAPTER 4.........................................................................................................35

Instrument Description....................................................................................... 35

07506C DCN6727 ix

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

Teledyne API Ultrafine Particle Monitor - Model 651 Contents

Ethernet ............................................................................................67

Flash Drives......................................................................................69

USB...................................................................................................72

RS-232 Serial Communications .......................................................72

Terminal Communications ................................................................ 73

Commands...........................................................................................74

CHAPTER 9.........................................................................................................77

Maintenance, Service, and Troubleshooting..................................................... 77

Removing the Cover ............................................................................78

Replacement Parts Kits .......................................................................78

Removing and Installing the Wick........................................................ 79

Changing the Filters.............................................................................81

Aerosol Flow Checks ...........................................................................82

Cleaning the Water Bottle ....................................................................84

Inspecting and Cleaning the Fans .......................................................85

Clean/Replace the Orifices ..................................................................85

Inspect Liquid Lines .............................................................................86

Status Messages .................................................................................87

Troubleshooting ...................................................................................88

Technical Assistance ...........................................................................90

Returning the Model 651 for Service ...................................................90

Chapter 10............................................................................................................91

Primer on Electro-Static Discharge...................................................................91

How Static Charges Are Created......................................................... 91

How Electro-Static Charges Cause Damage.......................................92

Common Myths About ESD Damage ..................................................94

Basic Principles of Static Control ......................................................... 95

General Rules...................................................................................95

Basic Anti-ESD Procedures for Instrument Repair and Maintenance. 97

Working at the Instrument Rack .......................................................97

Working at an Anti-ESD Work Bench ...............................................97

Transferring Components from Rack to Bench and Back ................98

Opening Shipments from Teledyne API’S Customer Service ..........98

Packing Components for Return to TAPI’s Customer Service.........99

APPENDIX A Firmware Commands................................................................... 1

READ Commands.................................................................................. 3

RAI – Read Analog Input Voltage.......................................................3

RALL – Read Operating Condition .....................................................4

RCT – Read Current Time.................................................................. 5

RD – Read Displayed Concentration..................................................5

RIE – Read Instrument Errors ............................................................6

RIF – Read Aerosol Flow Rate........................................................... 6

RIS – Read Instrument Status............................................................7

RL – Read Laser Current....................................................................7

RLL – Read Liquid Level ....................................................................8

RPA – Read Absolute Pressure Transducer ......................................8

RPN – Read Nozzle Pressure Transducer......................................... 8

07506C DCN6727 xi

Contents Teledyne API Ultrafine Particle Monitor - Model 651

RPV – Read Vacuum Pressure.......................................................... 8

RRD – Read Data Record.................................................................. 9

RRS – Read Status Record ............................................................. 10

RTA – Read Cabinet Temperature................................................... 10

RTC – Read Conditioner Temperature ............................................10

RTG – Read Growth Tube Temperature.......................................... 11

RTO – Read Optics Temperature .................................................... 11

RV – Read Firmware Version Number............................................. 11

SET Commands .................................................................................. 12

SM – Set Mode................................................................................. 12

SA – Set Auxiliary Flow Valve .......................................................... 13

SFC – Set Flow Rate Calibration Constant...................................... 13

SP – Set Pump Vacuum................................................................... 14

SR – Set Real-time Clock................................................................. 14

SSTART – Starts a New Sample ..................................................... 15

ST – Set Transport Flow................................................................... 16

DATA Reporting Records .................................................................... 16

D Record .......................................................................................... 17

S Record (Status) ............................................................................. 18

Index.............................................................................................................Index-1

Figures

FIGURE 1-1 ULTRAFINE PARTICLE MONITOR - MODEL 651 ........................................................................ 18

FIGURE 1-2 MODEL 651 FLOW SYSTEM SCHEMATIC................................................................................... 22

FIGURE 2-1 CONNECTING THE WATER SUPPLY ........................................................................................... 26

FIGURE 2-2 WATER FILL AND WATER EXHAUST FITTINGS.......................................................................... 27

FIGURE 2-3 CONNECTING THE AEROSOL SUPPLY....................................................................................... 28

FIGURE 2-4 CONNECTING THE AEROSOL SUPPLY TO INLET SCREEN ASSEMBLY................................. 29

FIGURE 2-5 SECURING INLET SCREEN ASSEMBLY IN PLACE..................................................................... 29

FIGURE 2-6 CONNECTING EXTERNAL VACUUM SOURCE............................................................................ 30

FIGURE 2-7 INSTALLING MODEL 651 IN A RACK ............................................................................................31

FIGURE 2-8 WARM-UP SCREEN........................................................................................................................32

FIGURE 4-1 MODEL 651 FRONT PANEL ...........................................................................................................35

FIGURE 4-2 MODEL 651 BACK PANEL.............................................................................................................. 37

FIGURE 4-3 MODEL 651 INTERNAL COMPONENTS (VIEWED FROM INSTRUMENT FRONT).................... 38

FIGURE 6-1 COUNTING EFFICIENCY CURVE OF MODEL 651....................................................................... 59

FIGURE 6-2 RESPONSE TIME OF MODEL 651................................................................................................. 59

FIGURE 8-1 SCREEN SHOWING VALID NETWORK CONNECTION ...............................................................69

FIGURE 9-1 LOADING NEW WICK INTO SPARE WICK CARTRIDGE ............................................................. 79

FIGURE 9-2 REMOVING INLET SCREEN ASSEMBLY...................................................................................... 79

FIGURE 9-3 NOZZLE JACK SCREW .................................................................................................................. 80

FIGURE 9-4 REMOVING WICK ...........................................................................................................................80

FIGURE 9-5 LOCATION OF FILTERS................................................................................................................. 81

FIGURE 9-6 CHANGING FILTER ........................................................................................................................ 82

FIGURE 9-7 MODEL 651 FLOW SCHEMATIC................................................................................................... 83

xii 07506C DCN6727

Teledyne API Ultrafine Particle Monitor - Model 651 Contents

FIGURE 9-8 EXTERNAL FLOW METER ATTACHED TO MODEL 651..............................................................84

FIGURE 9-9 CLEANING/REPLACING ORIFICES...............................................................................................85

FIGURE 10-1 TRIBOELECTRIC CHARGING ......................................................................................................91

FIGURE 10-2 BASIC ANTI-ESD WORK STATION..............................................................................................95

Tables

TABLE 1-1

TABLE 2-1 MODEL 651 PACKING LIST .........................................................................................................23

TABLE 2-2 MODEL 651 MAINTENANCE KIT PN DU0000169.......................................................................24

TABLE 9-1 MODEL 651 MAINTENANCE AND REPLACEMENT KITS..........................................................78

TABLE 9-2 TROUBLESHOOTING .............................................................................................................88

TABLE 10-1 STATIC GENERATION VOLTAGES FOR TYPICAL ACTIVITIES ...............................................92

TABLE10-2 SENSITIVITY OF ELECTRONIC DEVICES TO DAMAGE BY ESD ............................................93

TABLE A-1 MODEL 651 FIRMWARE COMMANDS...................................................................................... A-2

MODEL 651 SPECIFICATIONS...................................................................................................18

07506C DCN6727 xiii

Contents Teledyne API Ultrafine Particle Monitor - Model 651

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xiv 07506C DCN6727

Purpose

Organization

How This Manual is
Organized

This is an operation and service manual for the Ultrafine Particle
Monitor - Model 651.

The following information is a guide to the organization of
this manual.

 Chapter 1: Product Overview

Contains an introduction to the Model 651, a list of features,

the specifications, and a brief description of how the instrument
works.

 Chapter 2: Unpacking and Setting Up the Model 651

Contains a packing list and the step-by-step procedures for

installing the Model 651.

 Chapter 3: Moving and Shipping the Model 651

Describes how to prepare the Model 651 for moving and

shipping.

 Chapter 4: Instrument Description

Describes features and controls that run the Model 651,

including the components on the front-panel, back-panel, and
inside the instrument. It also covers the basic functions of the
instrument.

 Chapter 5: Instrument Operation

Describes the operation of the Model 651.

 Chapter 6: Technical Description

Describes the principle of operation, theory, and performance of

the Model 651.

 Chapter 7: Particle Counting

Contains information about the particle counting modes.

 Chapter 8: Computer Interface, Commands, and Data

Collection

Describes the computer interface, commands and data

collection.

07506C DCN6727 xv

How This Manual is Organized Teledyne API Ultrafine Particle Monitor - Model 651

 Chapter 9: Maintenance, Service, and Troubleshooting

Describes the recommended practices for routine maintenance

and service, as well as important troubleshooting procedures.

 Chapter 10: Primer on Electro-Static Discharge

Describes how static electricity occurs and why it is so

dangerous to electronic components and assemblies, as well as
how to prevent that damage from occurring so that the
instrument warranty is not invalidated.

 Appendix A: Firmware Commands

Lists the main serial commands for communications between
the Model 651 and the computer.

Related Product Literature

TAPI Model 651 Quick Guide (part number 07507)

This single-sheet quick guide provides critical information about
initial setup, operation, shipping, and maintenance of the
instrument.

Getting Help

To obtain assistance with the M651, contact TAPI Technical
Support:

Toll-free Phone:

Phone:

Email:

Website:

800-324-5190

858-657-9800

Fax:

858-657-9816

[e-mail]

http://www.teledyne-api.com/

xvi 07506C DCN6727

CHAPTER 1

Product Overview

This chapter contains an introduction to the Ultrafine Particle
Monitor - Model 651 and provides a brief explanation of how the
instrument operates.

Product Description

The Model 651 is a continuous laminar flow condensation particle
counter that uses water as its working fluid. The Model 651
provides rapid, high-precision measurement of the numbers of
ultrafine (down to 7 nm) airborne particles. The instrument delivers
robust field performance in both pristine and heavily polluted areas
and can be used for a variety of applications including ambient
monitoring and research, indoor air quality investigations,
atmospheric and climate research, and health effects studies. TAPI
recommends annual maintenance and calibration for the Model

651.

Features of the Model 651 include:

 6-inch color touch screen with a graphical interface displaying

particle concentration, total counts, and a plot of concentration
vs. time.

 7-nm detection.

 Single-particle counting to 10

 Continuous, live-time, electronic processing for maximum

accuracy.

 Adjustable inlet flow (3.0 or 0.6 L/min), inlet location (front or

back), and water supply connection (front or back).

 Flexible data acquisition options including USB stick, Ethernet,

USB port, and RS-232 port.

 Advanced instrument diagnostics including a novel pulse height

analyzer to monitor super-saturation state, wick health, and
instrument status.

 Newly designed air flow, wicking, and water handling systems.

 Option to mount in a rack with included hardware.

6

particles/cm3.

07506C DCN6727 17

Product Overview Teledyne API Ultrafine Particle Monitor - Model 651

Figure 1-1

Ultrafine Particle Monitor - Model 651

Specifications

Table 1-1 contains the operating specifications for the Model 651
instrument. These specifications are subject to change without
notice.

Table 1-1 Model 651 Specifications

PARAMETER SPECIFICATION

Particle Size Range

Min detectable particle (D50) 7 nm (verified with DMA-classified sucrose)

Max detectable particle 3 μm

Particle Concentration Range

Single Particle Counting

Particle Concentration Accuracy

Measurement Accuracy ±10% at 106 particles/cm3

Response Time (T95)

High flow mode(3 L/min)

Low flow mode (0.6 L/min)

Flow

High-flow inlet 3 ±0.3 L/min

Low-flow inlet 0.6 ± 0.06 L/min

6

0 to 10
coincidence correction

<3 sec to 95% in response to concentration step
change

<5 sec to 95% in response to concentration step
change

particles/cm

3,

with continuous live-time

18 07506C DCN6727

Teledyne API Ultrafine Particle Monitor - Model 651 Product Overview

PARAMETER SPECIFICATION

Aerosol flow rate 120 ±12 cm3/min

False Background Counts

False background counts <0.01 particles/ cm3, one hour average

Aerosol Medium

Aerosol medium Air only

Environmental Operating Conditions

Ambient temp range 10 to 38°C (50 to 100.4°F)

Ambient humidity range 0 to 90% non-condensing

Inlet Pressure Operation

Inlet pressure operation
(absolute)

Inlet pressure gauge 1 to -5 kPa (-20 inch H20)

Water System

Condensing liquid Distilled water

Water system

Water consumption ~250 ml/week

Vacuum

Vacuum

Communications

Protocol ASCII command set

Interfaces

RS-232 9-pin, D-Sub connector

USB

Ethernet 8-wire RJ-45 jack, 10/100 BASE-T, TCP/IP

Data Logging

Data logging USB Flash drive

Averaging interval

Outputs

Digital display

Analog output

Digital output

Calibration

Calibration Recommended annually

Power

Requirements 100 to 240 VAC, 50/60 HZ, 175 W max

50 to 110 KPa (0.5 to 1.1 atm)

External 1 liter bottle for up to 4 weeks of
operation.

External vacuum pump not included in
instrument accessories

Type B connector, USB 2.0 compatible at
12 MB

Data averaging interval of 1-3600s
1,2,4,5,6,10,12,15,20,30 or 60s
software provides more avg options.

9-inch QVGA color touch screen with graphical
interface. Graph of conc vs. time,
concentration, time and total counts, and
status

BNC connector, 0 to 10V proportional to
concentration, or 0 to 7V in LOG concentration
mode.

Data download using USB, RS-232 serial, or
Ethernet interface

07506C DCN6727 19

Product Overview Teledyne API Ultrafine Particle Monitor - Model 651

PARAMETER SPECIFICATION

Physical Features

Front panel Display, sample inlet, LED particle indicator

Back panel

HxDxW 20.3 x 48.3 x 30.5 cm (8 x 19 x 12 inches)

Weight 9.9 Kg (22 lbs)

Power connector, USB, Ethernet, RS-232, BNC
output, fan, water fill connector, pump exhaust
port, fill bottle and bracket

How it Works

The Ultrafine Particle Monitor - Model 651 is designed to measure
the concentration of airborne particles. The Model 651 draws in an
air sample and counts the number of particles in that sample to
provide a particle concentration value that is displayed as the
number of particles detected per cubic centimeter of sampled air.

The Model 651 utilizes a patented
condensation growth technique. Particles which are too small
(nanometer scale) to scatter enough light to be detected by
conventional optics are grown to a larger size by condensing water
on them. In this instrument, an air sample is continuously drawn
through the inlet via an external pump and a portion of the flow is
sent to the exhaust as transport flow. The stream of aerosol
particles is uninterrupted and follows a laminar flow path from the
sample inlet to the optical detector.

The Model 651 particle counting process is as follows:

*

laminar-flow, water-based

 The aerosol enters the sample inlet.

 In the conditioner, the aerosol sample stream is saturated with

water vapor and then temperature-equilibrated.

 The sample passes to a growth tube where the wetted walls

(composed of a porous medium) are heated to raise the vapor
pressure. The high diffusivity of the water vapor allows the
vapor to reach the center of the sample stream at a faster rate
than the thermal diffusivity of the vapor can equilibrate to the
higher temperatures near the walls—creating a supersaturated
condition along the radius of the flow stream. These unstable
conditions facilitate water condensation on the sample particles.

 Particles that are larger than the detection limit of the Model

651’s minimum critical particle size act as condensation nuclei
as they pass up the growth tube.

*

US Patent No. 6,712,881, Aerosol Dynamics Inc., Drs. Susanne V. Hering and Mark Stolzenburg.

20 07506C DCN6727

Teledyne API Ultrafine Particle Monitor - Model 651 Product Overview

 The enlarged particles are passed through a laser beam and

create a large light pulse. Every particle pulse event is detected
and counted. In this technique, particle concentration is
measured by counting each particle in the air stream.

Figure 1-2 illustrates the flow system of the Model 651.

07506C DCN6727 21

Product Overview Teledyne API Ultrafine Particle Monitor - Model 651

Figure 1-2
Model 651 Flow System Schematic

22 07506C DCN6727

Packing List

CHAPTER 2

Unpacking and Setting
Up the Model 651

Use the information in this chapter to unpack and set up the
Ultrafine Particle Monitor - Model 651.

The packing list described in Table 2-1 shows the components
shipped with the Model 651.

Table 2-2 shows the components included in the Model 651
Maintenance Kit.

Table 2-1 Model 651 Packing List

Part Number/

Qty.

1 081000000 Ultrafine Particle Monitor - Model 651
1 076220000 TAPI Manuals on CD-ROM(KB)
1 075070000 Model 651 Quick Start Guide
1 WR0000008 Power cable, 10A
1 DU0000167 Water supply bottle
1 DU0000168 Water drain bottle
1 DU0000177 Vacuum pump tubing
1 WR0000257 Cable, USB, com
1 WR0000101 RS-232 Serial cable, DB9 M/F

1 DU0000169 Maintenance Kit (for details see Table 2-2 below)
1 KIT000400 Inlet Mounting Kit

Model Number Description

DU0000175 Vacuum pump, 115V, 60Hz

Note: Some items above and those for future maintenance are

available for purchase as kits from TAPI. A complete list of
replacement parts is included in the Maintenance section in

Chapter 9

07506C DCN6727 23

.

Unpacking and Setting Up the Model 651 Teledyne API Ultrafine Particle Monitor - Model 651

Table 2-2 Model 651 Maintenance Kit PN DU0000169

Qty. Part Number Description

1 DU0000150 Static Dissipative Sample Inlet Tubing (3M)
3 DU0000234 Filter Replacements M651
1 DU0000161 Replacement Critical Flow Control Orifice .005 inch
1 DU0000162

1 DU0000163

1 DU0000157 3783 Wick Cartridge
12 DU0000158 Wick 3783: Replacement Wicks
1 DU0000178 Three-foot length of 1/8 inch tubing

Replacement Critical Transport Flow Control Orifice
.0095 inch

Replacement Critical Auxiliary Flow Control Orifice
.0225 inch

Unpacking

Carefully unpack the Model 651 from the shipping container (refer
to Chapter 10
Check to ensure there is no damage to the instrument. If any
damage is found, contact the carrier. Use the Packing List in Table
2

-1 to verify that there are no missing components.

to avoid damage due to Electro-Static Discharge).

Save the original shipping container to be used for future shipping.

If anything is missing, TAPI Technical Support by phone or by email:

Phone: [phone] (within the US)
001-858-657-9800 (outside the US)

858-657-9800 (local)
E-mail: [e-mail].

See Chapter 9
to TAPI, and Chapter 3

for instructions on how to return the instrument

for moving/shipping procedures.

Caution – Prevent Damage and Avoid Warranty Invalidation

The Ultrafine Particle Monitor - Model 651 operates using distilled

(<6 ppm) or HPLC water as a working fluid. Do not tip the instrument

more than 10 degrees during normal operation. Perform the procedures
described in Chapter 3

Do not:

 Ship an “undried” instrument.
 Transport an “undried” instrument over long distances.
 Subject an “undried” instrument to freezing temperatures.

Any of the above actions can result in the flooding of the optical system,
performance degradation, and possible damage to the instrument. Such
neglect is not covered under the manufacturer’s warranty.

before moving or shipping the instrument.

24 07506C DCN6727

Teledyne API Ultrafine Particle Monitor - Model 651 Unpacking and Setting Up the Model 651

Installation

IMPORTANT

The wick used in the M651 must be changed every 4 weeks (800
hours), and distilled (<6 ppm) or HPLC water must be used as the water
source. Follow the instructions in Chapter 9

This section contains instructions for installing the Model 651
instrument. Follow the instructions in the order given.

The installation procedures, described on the following pages,
include the following:

 Removing protective caps.

 Connecting the water supply.

 Connecting the water exhaust tube.

 Connecting the aerosol supply and vacuum line.

 Installing the Model 651 in a rack (if desired).

 Connecting the USB cable.

 Connecting the power and warming up the Model 651.

for wick replacement.

Equipment

You will need the following equipment to install the Model 651:

 9/16 inch wrench.

 7/64 inch hex driver.

 ¼-inch, thick-walled, plastic tubing.

 Water supply.

Note: Use either distilled (<6 ppm) or HPLC water. Do not use

tap water.

Remove Protective Caps

After unpacking the Model 651, remove the protective caps from the

AEROSOL INLETs on the front and back panels of the instrument
and from the PUMP EXHAUST. Then remove the covers from the

BNC

connectors.

Connecting the Water Supply

The Model 651 uses a gravity-fed water fill system.

Note: To prevent the water from draining back into the bottle during

operation, the bottle must always be placed at a higher level
than the instrument.

07506C DCN6727 25

Unpacking and Setting Up the Model 651 Teledyne API Ultrafine Particle Monitor - Model 651

To connect the water supply, follow these instructions:

1. Using a 7/64 inch hex driver, mount the water supply bottle

bracket to the front or back of the particle counter using the
provided bottle bracket mounting screws. The figure below
shows the bracket mounted on the back.

Bracket

Screw

Figure 2-1

Connecting the Water Supply

2. Fill the water supply bottle with either distilled (<6 ppm) or

HPLC water and place the bottle in the bracket.

Note: A filled water supply bottle will typically allow the Model

651 to operate for more than the 4-weeks wick
replacement interval. If water is added between the wick
change, it is recommended that the water be added to the
bottle without disconnecting it from the Model 651 to avoid
adding any bubbles into the water supply line.

3. Push the connector on the water supply bottle tubing into the

WATER FILL fitting on either the front or back of the

instrument (figure below shows the back).

26 07506C DCN6727

Teledyne API Ultrafine Particle Monitor - Model 651 Unpacking and Setting Up the Model 651

WATER FILL

Fitting

WATER EXHAUST

Fitting

Figure 2-2

Water Fill and Water Exhaust Fittings

Connecting the Water Exhaust Tube

The waste water should pass into a suitable drain such as a floor
drain or a vented container. To connect the drain tube:

1. Push the connector on the supplied length of drain tubing into

the WATER EXHAUST fitting on the back panel.

2. Place the other end of the drain tube in a vented container or

over a floor drain.

Connecting the Aerosol Supply

The Model 651 allows you to conduct aerosol sampling from either
the front or the back of the instrument. To run the instrument
effectively, you need an external vacuum capable of drawing
6 SLPM at 400 mbar absolute pressure.
Sampling options include the following:

 Ambient sampling using the inlet screen assembly (provided

with the monitor) connected to the Model 651 inlet. The inlet
screen assembly prevents large matter (such as insects and dirt)
from entering the instrument.

Note: If you are sampling from the back of the instrument, you

must use the inlet screen assembly and the flow rate must
be 3 L/min when using the inlet screen.

07506C DCN6727 27

Unpacking and Setting Up the Model 651 Teledyne API Ultrafine Particle Monitor - Model 651

 Using a sampling system connected directly to the aerosol inlet.

 Environmental monitoring using tubing connected directly to

the aerosol inlet.

IMPORTANT

The gauge pressure of the sampled aerosol must be within +4/-20 in.
H

O pressure relative to the ambient pressure. Pressures outside of this

2

range will result in water-handling failures.

To set up the aerosol supply, follow these instructions:

1. Decide whether you will sample from the front or the back of

the instrument.

2. Place the aerosol sample inlet cap over the sample port that you

will not be using.

3. Determine your sampling method. The instrument is shipped

with the inlet screen assembly in place, but if it has been
removed and you wish to use it, you must reconnect it to the
Model 651 inlet. If you are not using the inlet screen, connect
the aerosol sample line to the aerosol inlet.

Figure 2-3

Connecting the Aerosol Supply

4. If you are using the inlet screen assembly and it needs to be

connected, line up the two captive screws with the
corresponding holes on the front panel. The elbow tube should
line up with the nozzle.

28 07506C DCN6727