SKC Limited EPAM-7500 User Manual

EDC

EDCEDC

EDC

USER’S GUIDE

™

HAZ-DUST

ENVIRONMENTAL PARTICULATE

AIR MONITOR

MODEL EPAM-7500

DOC# HD71112

Environmental Devices Corporation

4 Wilder Drive Bldg. # 15

Plaistow, NH 03865

Phone: [phone]
Phone: [phone]

Fax: [phone]

E-mail: [e-mail]

Website: www.hazdust.com

E

c

Innovative technologies for monitoring air quality

Haz-Dust

Model EPAM-7500

User’s Guide

Licenses, Copyrights and Trademarks

This documentation contains trade secrets and confidential information
proprietary to Environmental Devices Corporation (EDC). The software
supplied with the instrumentation, documentation and any information
contained therein may not be used, duplicated or disclosed to anyone, in
whole or in part, other than as authorized in a fully executed EDC End User
License or with the express written permission of EDC.

© 1999 Environmental Devices Corporation. All rights reserved throughout
the world.

Haz-Dust ™ is a registered trademark of Environmental Devices Corporation.
Other trademarks are the property of their respective holders.

ii

Safety Notice

Repair of instrumentation supplied by Environmental Devices Corporation
(EDC) should only be attempted by properly trained service personnel, and
should only be conducted in accordance with the EDC system documentation.
Do not tamper with this hardware. High voltages may be present in all
instrument enclosures. Use established safety precautions when working with
this instrument.

The seller cannot foresee all possible modes of operation in which the user
may attempt to utilize this instrumentation. The user assumes all liability
associated with the use of this instrumentation. The seller further disclaims
any responsibility for consequential damages.

iii

Warranty

Environmental Devices Corporation (EDC) warrants only non-expendable
products (expendable items include batteries disposable filters and cassettes
or other consumables), parts and labor, for a period of one year from date of
shipment to the original purchaser. The warranty covers only product parts
and labor that failed due to normal operation of the instrument and not due to
abuse or negligence. The product will be delivered in accordance to its
published specifications and free from defects in materials or workmanship.

If a product fails to conform to this one year limited warranty it may be
returned to the factory for repair or replacement of the defected part(s). EDC
must be notified of all returning warranty repair products, either in writing or
by telephone. Shipping and insurance cost will be prepaid by the purchaser.

EDC makes no other express warranty and disclaims any implied warranty of
fitness or merchantability.

iv

Table of Contents

Licenses, Copyrights and Trademarks ............................................................................................. ii

Safety Notice ..................................................................................................................................... iii

Warranty .......................................................................................................................................... iv

Chapter 1 Introduction to the Haz-Dust Model EPAM-7500..................................................................

Introduction to the Haz-Dust Model EPAM-7500 ......................................................................... 1-1

Introduction to the EPAM-7500 ................................................................................................... 1-2

Overview of the EPAM-7500 ........................................................................................................ 1-4

Real-Time Dust Monitoring Principles .......................................................................................... 1-6

Features ........................................................................................................................................ 1-7

Specifications ............................................................................................................................... 1-8

Components.................................................................................................................................. 1-9

Chapter 2 - Operating Parameters of the EPAM-7500 ...........................................................................

Operating Parameters of the EPAM-7500 ..................................................................................... 2-1

Turning the EPAM-7500 On and Off ............................................................................................ 2-2

Using the Main Menu ................................................................................................................... 2-3

Setting the Date and Time ............................................................................................................. 2-4

Setting the Alarm .......................................................................................................................... 2-5

Clearing the Memory .................................................................................................................... 2-6

Chapter 3 - Operating the Haz-Dust EPAM-7500 ...................................................................................

Operating the Haz-Dust EPAM-7500 ............................................................................................ 3-1

Selecting The Particle Size ............................................................................................................ 3-2

EPAM-7500 Impactor Instructions ................................................................................................ 3-3

1.0um Dust Particulates ................................................................................................................ 3-5

2.5 um Dust Particulates ............................................................................................................... 3-6

4.0um Dust Particulates ................................................................................................................ 3-7

10.0um Dust Particulates .............................................................................................................. 3-8

Auto-Zero ..................................................................................................................................... 3-9

Sampling .................................................................................................................................... 3-10

Location Codes ........................................................................................................................... 3-11

Reviewing Stored Data ............................................................................................................... 3-12

Chapter 4 – DustComm 7 Software .......................................................................................................

v

Introduction to the DustComm 7 Software ................................................................................... 4-1

DustComm 7 Software Screen Shot ............................................................................................... 4-2

Connecting the EPAM-7500 to the PC USB .................................................................................... 4-3

Chapter 5 - Maintenance ......................................................................................................................

Maintenance ................................................................................................................................. 5-1

Checking the Calibration Span ...................................................................................................... 5-2

Checking the Flow Rate ................................................................................................................ 5-4

Adjusting the Flow Rate ............................................................................................................... 5-5

Battery Maintenance ..................................................................................................................... 5-6

Cleaning the Impactors ................................................................................................................ 5-8

Cleaning the Sensor Optics ......................................................................................................... 5-10

Appendix ..............................................................................................................................................

Appendix A Menu Screens .............................................................................................. Appendix A

Appendix B NIOSH/OSHA Particulate Air Monitoring Reference ...................................... Appendix B

Appendix C Glossary of Terms .......................................................................................... Appendix C

vi

Chapter 1 Introduction to the Haz-Dust Model EPAM-7500

Introduction to the Haz-Dust Model EPAM-7500

Introduction

In this chapter

Chapter Overview

This chapter gives a complete overview of the Haz-Dust Model EPAM-7500.

This chapter:

• Introduces and describes EPAM-7500.

• Explains operating principles of the EPAM-7500.

• Identifies features, specifications and components of EPAM-7500.

This chapter contains the following topics.

Introduction to the EPAM-7500 1-2
Overview of the EPAM-7500 1-4
Real-Time Dust Monitoring Principles 1-6
Features 1-7
Specifications 1-8
Components 1-9

Topic See Page

1-1

Introduction to the EPAM-7500

Introduc

tion

Figure 1.2. Picture of the Haz

-

Dust EPAM

-

7500

The Haz-Dust EPAM-7500 is a high sensitivity real-time particulate monitor
designed for ambient environmental and indoor air quality applications. This
unit combines traditional filter techniques with real-time monitoring methods.
These techniques combined overcome limitations of all other aerosol
monitoring products.

Continued on next page

1-2

Introduction to the Haz-Dust EPAM-7500, Continued

Comparison of

Description of

Advantages of

•

Description of

Advantag

es of

•

The traditional and real-time dust monitoring methods are described below.

methods

Air is drawn by a vacuum pump through a 47mm diameter membrane filter

traditional
method

traditional
method1

real-time
method

EPA FRM Style. The fibers and particles collected on the membrane filter
must be counted or weighed in a laboratory for further analysis.

EPA or OSHA compliance reference method.

• High level of specificity and accuracy.

• Collection of dust particles, which are available for further chemical

analysis.

Dust particles are drawn into the sensor head and are detected once every
second. Dust concentrations are instantaneously calculated and displayed on
the Haz-Dust EPAM-7500’s LCD. All data points are stored in memory for
later analysis.

Immediate estimations of the concentration of a contaminant, permitting

real-time
method1

on-site evaluations.

• Provision of permanent 24-hour records of contaminant concentrations

using continuous monitors.

• Internal audible alarm to warn workers of approaching hazardous

situations.

• Reduction of number of manual filter tests.

• Reduction of number of laboratory analyses.

• Provision of more convincing evidence for presentation at hearings and

litigation proceedings.

• Reduced cost of obtaining individual results.

1

“The Industrial Environment - It’s Evaluation & Control”, U.S. Department of Health & Human Services, CDC,

NIOSH, 1973.

1-3

Overview of the EPAM-7500

Ease of use

General

•

Figure 1.4. Diagram showing breathing zones of Inhalable, Thoracic, and Respirable dust

• The user controls all functionality and programming using menus displayed

on a high contrast LCD.

• A 24-hour rechargeable battery capacity.

• Automatic clean air purging of sensor for increased stability and accuracy.

• Internal temperature compensation for ambient use.

The LCD displays real-time concentration in milligram per cubic meter

Information

(mg/m3) in accordance with EPA or OSHA Reference Methods.

• Statistical information of TWA, STEL, Max and Min levels can be viewed

instantly.

• The Haz-Dust is calibrated using Arizona Road Dust (ARD) against NIOSH

method 0600 for Respirable dust with a + 10% accuracy.

• The calibration of the Haz-Dust can be adjusted to compensate for changes

in particle composition and distribution.

particles.

Continued on next page

1-4

Overview of the EPAM-7500, Continued

DustComm 7
Series Software

DustComm 7 Series supplied software is designed for more detailed

analysis of sampled data.

Data can easily be exported in comma-delimited ASCII Text Files

importable into spreadsheet programs such as Microsoft Excel and Lotus
1-2-3.

The EPAM-7500 data can be translated to a PC using DustComm 7 Series

Software or Windows Mobile.

The data plots provided with DustComm 7 series enable:

· Detailed statistical analysis.

· Creation of charts.

1-5

Real-Time Dust Monitoring Principles

Principles

Figure 1.5. Diagram showing

the principle of near

-

forward light scattering used in the Haz

-

Figure 1.6. Graph illustrating the principle of near

-

forward light scattering.

•

The EPAM-7500 uses the principle of near-forward light scattering of an

infrared radiation to immediately and continuously measure the
concentration in mg/m3 of airborne dust particles.

•

This principle utilizes an infrared light source positioned at a 90-degree

angle from a photo detector.

•

As the airborne particles enter the infrared beam, they scatter the light. The

amount of light received by the photo detector is directly proportional to the
aerosol concentration.

•

A unique signal processes internally and compensates for noise and drift.

This allows high resolution, low detection limits and excellent base line
stability.

Dust..

Light Scattering vs. Gravimetric Filter

1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1
0

Response

Relative Optical

0 0.5 1

Gravimetric Filter Weight

ARD

ARD

Filter

0.1

ARD = Arizona Road Dust
RTD = Real-Time Dust

1-6

Features

Introduction

Real

-

time

•

Functional

•

Operational

Data

display of

features

The EPAM-7500 provides a unique combination of features to provide
superior data quality, ease of use, and flexibility to the user. Below is a
partial list of distinctive features.

Particulate exposure levels.

• TWA, STEL, Min, and Max levels.

• PM 1.0, PM 2.5, PM 4.0, PM 10, or TSP.

• Stored data by date and location code.

• Real-Time graphing capability

• Touch Display

Calibrated to NIOSH methods for lung damaging particles.

• In line concurrent filter samples for gravimetric analysis.

• High sensitivity of 0.001 to 40 mg/m3 (1 µg/m3 – 4000 µg/m3).

• Optional sensitivity of 0.01 to 400 mg/m3

• Interchangeable size-selective sampling inlets.

• Internal air sampling pump.

• Auto purging sensor.

• Easy user access to rechargeable battery and internal filter.

• On-screen programming of sampling and data storage parameters.

features

• Real-time clock.

• User selectable audible alarm.

• In-field zero and span check of instrument calibration.

• Choice of 1 second, 5 second, 10 second, 1 minute, 15 minute, 30 minute,

management

or 60 minute averaging/storage intervals.

• Memory storage of greater than 120,000 data points per location.

• Data translation to ASCII text files, importable into Excel or Lotus 1-2-3.

• DustComm 7 software offers comparative graphical and statistical analysis.

1-7

Specifications

Introduction

The EPAM-7500 meets the following specifications.

Specifications
Display: Graphical touch LCD
Operation: Touch menu driven
Calibration: NIOSH gravimetric method
Sensing range: .001-40.000 mg/m3, 01-400.0 mg/m3
Particle size range: 0.1-100 µm
Precision: +/- 0.003 mg/m3 (3 µ m/m3)
Accuracy: +/-10% to NIOSH #0600 using ARD
Sampling flow rate: 2.0 liters/minute
Filter cassette: 47mm disposable EPA FRM Style
Alarm output: 90db at 3ft.
Recording time: 1 sec. To 15 months
Sampling rate: 1 sec., 5 sec., 10 sec., 1 min., 15 min., 30 min. and 60 min.
Data storage: Greater than 120,000 data points
Memory & time storage: > 10yrs
Real-time clock & data display
Data display: concentration in mg/m3 & TWA, MAX, MIN, STEL, DATE/TIME
Digital output: USB
Operating Temperature: -10oC to 50oC
Storage Temperature: -20 to 60oC
DustComm 7 software: Windows™ driven for graphical and data translation
Power: Rechargeable battery
Operating time: > 24 hours
Charging time: 22 hours
Humidity: 95% non-condensing
Dimensions (case): 14.0” x 6.0” x 10.0”
Weight: 7 lbs.

1-8

Components

Components

The following components ship with the EPAM-7500.

* EPAM-7500
* Battery charger.
* Rechargeable battery pack
* EPAM-7500 Media CD-ROM Includes: DustComm 7 Software and

Instruction Manual.

* USB cable
* TSP Sampling inlet (1.0 µm, 2.5 µm, or 10 µm sampling inlet optional. If

ordered from SKC, Inc. distribution channel.).

* Flow Audit Measuring Device Adapter
* Flow Audit Measuring Device.

1-9

Chapter 2 - Operating Parameters of the EPAM-7500

Operating Parameters of the EPAM-7500

Introduction

In this chapter

Chapter Overview

This chapter describes the steps involved in starting the EPAM-7500 and
configuring its operating parameters.

This chapter contains the following topics.

Turning the EPAM-7500 on and off. 2-2
Using the Main Menu. 2-3
Setting the Date and Time. 2-4
Setting the Alarm. 2-5
Clearing the Memory. 2-6

Topic See Page

2-1

Turning the EPAM-7500 On and Off

Introduction

Power

-On

Power

-

Off

Result:

Power can be supplied to the EPAM-7500 either from its internal battery or
from the provided AC power transformer (Battery Charger).

Note: THE BATTERY SHOULD BE FULLY CHARGED before each use. To
charge battery use the EDC supplied charger only. LED indicator on the
EPAM-7500 will turn green when the battery is fully charged. Charge time is
approximately 22 hours and will run for approximately 24 hours. To check
battery status see Page 5-8.

Plug battery pack into EPAM-7500. When power is connected to the EPAM­7500, the instrument will turn itself on. There will be a blinking green LED
on the front of the instrument when the EPAM-7500 begins to boot up.

If the EPAM-7500 does not turn on, press the green I/O power button on the
front of the EPAM-7500.

Press the green I/O power button on the front of the EPAM-7500 to
turn the EPAM-7500 off. Also, pressing the red I/O graphic on the display
can turn the EPAM-7500 off or go to standby mode.

2-2

Using the Main Menu

Introdu

ction

Accessing the

Using the menu

The EPAM-7500 graphic menu appears on the graphical display.

Note: See Appendix A for menu option flow charts.

The Main Menu is displayed when the EPAM-7500 is first powered on.

main menu

The EPAM-7500 is operated using the following menu selections.

<ON/OFF>

<Settings>

< Upload To Card >

< Review >

< Monitor >

Selection Function

Turns the EPAM-7500 off or into
standby mode.
Changes the settings of the EPAM-

7500.
Allows the user to upload any data
saved from the internal memory to
the Compact Flash Card.
Allows the user to look at the
statistical data before uploading to
the PC or Compact Flash Card
Runs the EPAM-7500. The EPAM­7500 does not start logging when the
monitor graphic is pressed. To start
logging in monitor mode, press the
record graphic.

2-3

Setting the Date and Time

Introduction

Date and Time

View settings

Settings

Date/Time

Change s

ettings

Settings

The date and time are pre-set by the factory to Eastern Standard Time and are
maintained by an internal clock. It may be necessary to change the date and
time due to local time zones or daylight savings time.

Note: It is important that the system date and time are correct for accurate
record keeping.

Time is entered and displayed in military time format.

settings

Date is entered and displayed in European format (i.e., 03-DEC-2011).

Follow the steps in the table below to check the unit’s date and time.

Step Action

1 Select
2

Follow the steps in the table below to change the unit’s date and time.

Step Action

1 Select
2 Press on time zone drop down menu and select your timezone.
3 Press on the date drop down menu and select the year, month, and

date.

4 Press on the hour position on the time box.

To... Press...

Increase the value of the selected digit.
Decrease the value of the selected digit.
Change minutes or seconds Press on minutes or

5 Press Green check mark when the correct information has been

entered.

from the Main Menu.

is shown on the first screen and in the first three boxes.

from the Main Menu.

< >
< >

seconds and change the
value as described
above.

2-4

Setting the Alarm

Introduction

Alarm settings

Using the alarm

Monitor

Alarm

<

<

An audible alarm can be set to alert the worker of approaching threshold
limits.

The concentration level must be set to the defined agency standard for the
particulate type being sampled.

Note: See Appendix B for a partial listing of the most common dust
particulates and their corresponding concentration levels.

Follow the steps in the table below to set the alarm level.

Step Action

1 Select
2 Select
3 Enter the appropriate concentration level using the table below.

Increase the value of the

Decrease the value of the

5 Click on Green check mark to accept the alarm set point.

To run unit with alarm, after setting alarm click on the alarm

graphic from the Main Menu.

graphic.

To... Press...

Scroll the bar to the

selected digit.

or press on the concentration
number and enter the value you
would like to set. >

Scroll the bar to the

selected digit.

or press on the concentration
number and enter the value you
would like to set. >

graphic. This will remove the red X on the alarm. Press the alarm
again to put the red X back on mute the alarm.

Result: The alarm has been set.

2-5

Clearing the Memory

Introduction

Clearing

Upload To Card

The memory of the EPAM-7500 can be cleared at any time.

Note: User can select one data file or many data files at once to delete.

Follow the steps in the table below to clear the memory of the EPAM-7500.

memory

Step Action

1 Select
2 Select the files you wish to remove.
3 Select the green check button to move the files to the Compact

Flash Card.

4 Connect the Compact Flash Card to a computer and delete the files.

Note: The EPAM-7500 can also be connected to a computer using
a USB cable and files can be deleted from the PC.

graphic from the Main Menu.

Chapter 3 - Operating the Haz-Dust EPAM-7500

Operating the Haz-Dust EPAM-7500

Introduction

In this chapter

Chapter Overview

This chapter describes and diagrams operation procedures of the EPAM-

7500.

This chapter contains the following topics.

Selecting the Particle Size: 3-2
EPAM-7500 Impactor Instructions 3-3

1.0 micron Dust Particulates 3-5

2.5 micron Dust Particulates 3-6

4.0 micron Dust Particulates 3-7

10 micron Dust Particulates 3-8
Auto-Zero 3-9
Sampling 3-10
Location Codes 3-12
Reviewing Stored Data 3-13

Topic See Page

3-1

Selecting The Particle Size

Introductio

n

The inlet system of the EPAM-7500 can be configured to sample TSP, PM

1.0, 2.5, 10.0 µm dust particulates. The following pages detail the selection
process for each of these particle types. Impactor Sleeve holds one optional
Impactor accessory.

Figure 3-1. Picture: A) Impactor Jet, B) Impaction cup, and C) Impactor
Sleeve. For TSP sampling use impactor sleeve without impactor.
Impactor values are engraved on bottom of impactor jet.

3-2

EPAM-7500 Impactor Instructions

Impactor Part Number: EPAM-1.0, EPAM-2.5, EPAM-4.0, and EPAM-10

Impactor Sleeve Part Number: IMS-105

The Impactor consists of the cup and the impactor jet. The Impactor cup fits onto the impactor
jet. The cup has three female connectors and the jet has three pins. User can easily remove for
cleaning without the use of any tools.

STEP 1: The completed assembly of the impactor fits into the impactor sleeve. Insert the cup
end of the impactor first into the impactor sleeve. You will need to insert the impactor
approximately one inch or 25mm down into the impactor sleeve.

Impactor Sleeve

Impactor Jet
Sizes 1.0um, 4.0, 2.5um, 10um

Impaction Cup
remove for applying
impactor grease & cleaning

Impactor Assembly
Push down into sleeve 1
inch (25mm)

3-3

STEP 2: Place impactor sleeve with impactor inserted into sensor of EPAM-7500 monitor.

STEP 3: In order to change impactor to different size, to clean or to grease impactor cup,

impactor must be removed. To remove impactor from sleeve, push upward with the trim stick
provided with model EPAM-5000, a pencil, or similar from bottom of sleeve.

Push up to remove

3-4

1.0um Dust Particulates

Settings

Sample Type

1.0 um

– E

Green

Follow the steps in the table below to select PM-1.0 dust particulates.

Step Action

Install 47mm filter if
desired.
Remove filter holder
by unscrewing
bottom round cover.

1 Select
2 Select
3 Select
4 Select
6 Insert the sampling inlet into the sensor head of the EPAM-7500.

Note: If also collecting concurrent 47mm EPA FRM Style filter
samples place a clean gravimetric filter in the filter cassette. The
flow rate should be checked each time a new gravimetric filter is
used. See page 5-5 for information on checking the flow rate.

7 Attach the filter cassette to the sensor head of the EPAM-7500.

See diagram below.

8 Turn to page 3-7 and follow the instructions to Manual-Zero the

EPAM-7500.

Figure 3-2. Diagram of sensor lid. To unlock sensor lid unscrew pem screw
located on right side of sensor lid to expose the filter cassette. *NOTE: When
closing sensor cover be sure not to tighten pem screw too tightly the spring
inside the screw can break.

from the Main Menu.

.

.

check mark button to accept Changes.

3-5

2.5 um Dust Particulates

Settings

Sample Type

2.5 um

– S

Green

Follow the steps in the table below to select PM-2.5 dust particulates.

Step Action

1 Select
2 Select
3 Select
4 Select
6 Insert the sampling inlet into the sensor head of the EPAM-7500.

Note: If also collecting concurrent 47mm EPA FRM Style filter
samples place a clean gravimetric filter in the filter cassette. The
flow rate should be checked each time a new gravimetric filter is
used. See page 5-5 for information on checking the flow rate.

7 Attach the filter cassette to the sensor head of the EPAM-7500.

See diagram below.

8 Turn to page 3-7 and follow the instructions to Manual-Zero the

EPAM-7500.

from the Main Menu.

.

.

check mark button to accept Changes.

3-6

4.0um Dust Particulates

Settings

Sample Type

4.0 um

– SM

Green

Follow the steps in the table below to select PM-4.0 dust particulates.

Step Action

1 Select
2 Select
3 Select
4 Select
6 Insert the sampling inlet into the sensor head of the EPAM-7500.

Note: If also collecting concurrent 47mm EPA FRM Style filter
samples place a clean gravimetric filter in the filter cassette. The
flow rate should be checked each time a new gravimetric filter is
used. See page 5-5 for information on checking the flow rate.

7 Attach the filter cassette to the sensor head of the EPAM-7500.

See diagram below.

8 Turn to page 3-7 and follow the instructions to Manual-Zero the

EPAM-7500.

from the Main Menu.

.

.

check mark button to accept Changes.

3-7

10.0um Dust Particulates

Settings

Sample Type

10

.0 um

– M

Green

Follow the steps in the table below to select PM-1.0 dust particulates.

Step Action

1 Select
2 Select
3 Select
4 Select
6 Insert the sampling inlet into the sensor head of the EPAM-7500.

Note: If also collecting concurrent 47mm EPA FRM Style filter
samples place a clean gravimetric filter in the filter cassette. The
flow rate should be checked each time a new gravimetric filter is
used. See page 5-5 for information on checking the flow rate.

7 Attach the filter cassette to the sensor head of the EPAM-7500.

See diagram below.

8 Turn to page 3-7 and follow the instructions to Manual-Zero the

EPAM-7500.

from the Main Menu.

.

.

check mark button to accept Changes.

3-8

Auto-Zero

Introduction

Auto

-

Zero

Settings

Auto Zero

Green

Auto-Zero purging feature automatically adjusts for baseline drift due to
severe ambient temperature change.
This feature is a default setting on the EPAM-7500.
The Auto-Zero feature purges the sensor optics with clean air and re­establishes the baseline every 30 minutes as a default.

To deactivate or reactivate the Auto Zero purging feature follow the table
below.

Step Action

1 Select

2 Select blue

3 Select
4 Select desired Auto Zero time.

5 Select

from the Main Menu.

drop down menu.

check button to accept changes.

3-9

Sampling

Introduction

Conditions

Sampling

Monitor

Record

Note:

Monitor

Once you have selected a Particle Size and completed the EPAM-7500 is
ready to begin sampling.
Note: It is recommended to trial sample in the environment where you will be
air monitoring for 15 minutes to allow EPAM-7500 to stabilize prior to
beginning first sample.

The following conditions should be met before starting the sampling process.

Condition... For further Information

See Page...

The correct particle size must be selected. 3-2
The correct sampling inlet must be attached. 3-2 to 3-8
The date and time must be checked and/or set. 2-4
The alarm level must be set if sampling with

2-5

the alarm feature.

Follow the steps in the table below to begin the particle sampling.

Step Action

1 Turn unit on.
2 Select
3 Select the
4

See page 3-13 for explanation of location codes.

5 When in

.

graphic to start recording.

, select the information graphic to see the

settings of the EPAM-7500.

3-10

Location Codes

Introduction

Maximum

Assigning

The EPAM-7500 assigns a location code to each sampling sequence. The
active location is indicated in information screen (See figure 3.10).

The EPAM-7500 can store a total of greater than 120,000 data points.

location codes

The location code assigned to the site is determined by the date and runs for

location codes

the day (ex. P10NOV2012-000).

3-11

Reviewing Stored Data

Graphical

Viewing data

Review

Record Name

Green

Introduction

display

The EPAM-7500 provides extensive capabilities for reviewing internally
stored data and statistics on the graphical display or downloading to a PC
using DustComm 7 Software (Chapter 4).

The following information can be displayed on the graphical display.

Display Description Tag #

Date Date of sampling.
Start Time sampling began.
Stop Time sampling was terminated.
Duration Time of occurrence of reported statistic.
MAXIMUM Sample Highest concentration of dust particles.
MINIMUM Sample Lowest concentration of dust particles.
T.W.A. Time weighted average concentration of dust

Samples How many samples were taken during the logging

S.T.E.L. Short-term exposure limit.

particles.

session.

on the
graphical
display

Follow the steps in the table below to review stored information and statistics.

Step Action

1 Select
2 Select
3 Select

graphic

.

check mark button.

4 Review Screen will have the data from the above chart.

3-12

Chapter 4 – DustComm 7 Software

Introduction to the DustComm 7 Software

Introduction

Spreadsh

eet

Data plots

Open a File

Statistics

Notes

Export to Excel

Import into

DustComm 7 is a powerful and flexible Windows application software
package designed for use with the EPAM-7500 Particulate Monitoring
Equipment.

DustComm 7 is a data manipulation tool, enabling detailed analysis and
reporting of sampled data.

DustComm 7 easily translates data into spreadsheet ASCII text files. These

applications

files can be open into spreadsheet programs such as Microsoft Excel

The data plots provided with DustComm 7 enable:

• Detailed statistical analysis.

• The creation of charts.

To open a file in DustComm 7 software, press file, then open. Go to where
the file was saved on the Flash Card and open the file.

DustComm 7 will display a graph of the data at the bottom of DustComm7.
The statistical data is above the graph.

Notes can be added to the DustComm 7. The notes field is on the right side of
the statistical data.

To export the data into excel, press File and select export to CSV.

To import the data into excel, open Microsoft Excel. Press File and Open.

Excel

Open the CSV data file from above. When importing the data, ensure to select
comma delimited data.

4-1

File Menu

DustComm 7 Software Screen Shot

File Name

Statistical
Data

Graphed
Data

Notes

4-2

Connecting the EPAM-7500 to the PC USB

Introduction

Windows

The EPAM-7500 can also download the data through the USB connector on
the top of the instrument. To download the EPAM-7500 through USB, the PC
would need ActivSync. ActivSync can be downloaded from the Microsoft
website. The address is http://www.microsoft.com/en-

us/download/details.aspx?id=15 to download the ActivSync.

Windows Mobile can also be downloaded on Microsoft’s website if your
computer does not have the software included. The address to download
Windows Mobile is http://www.microsoft.com/en-

us/download/details.aspx?id=14 for a 32-bit system. Windows Mobile can be

downloaded and installed instead of using ActivSync.

Windows Mobile can also be used on the PC with ActivSync to browse the

Mobile

files on the flash card as well as the internal memory.

4-3

Windows

Mobile

Once the EPAM-7500 is connected, click on the browse files. You can drag
the files you want onto the desktop and use the DustComm 7 software.

4-4

Chapter 5 - Maintenance

Maintenance

Introduction

In this chapter

Chapter Overview

This chapter covers the routine maintenance procedures for the Haz-Dust
EPAM-7500.

This chapter contains the following topics.

Checking the Calibration Span. (Optional Accessory). 5-2
Checking the Flow Rate. 5-4
Adjusting the Flow Rate. 5-5
Battery Maintenance. 5-6
Cleaning the Impactors 5-8
Cleaning the Sensor Optics. 5-10

Topic See Page

5-1

Checking the Calibration Span

Introduction

When to check

Conditi

ons

The Span Reference Insert Part Number CS-105 is a light scattering device
that provides a constant value (termed a “k” factor).

The Span Reference should be used as a reference to check factory calibration
of the EPAM-7500 Monitor.

The calibration span should be checked under the following conditions:

the calibration
span

• Once a month with normal usage. (Normal use is twice a week).

• If the EPAM-7500 is dropped or otherwise damaged.

• The first time you use the unit to double check the factory calibration.

Note: The EPAM-7500 must be sent into EDC annually for recalibration. In
accordance with ISO procedures.

The following conditions must be met before checking the calibration span.

Condition... For further information

The Environment must be clean. --­The Battery must be fully charged. 5-7

Figure 5-1. Inserting CS-105 into Haz-Dust Sensor.

see page...

5-2

Checking the Calibration Span, Continued

Checking

Monitor

Follow the steps in the table below to check the Span of the EPAM-7500

Calibration
Span

Monitor.

Note: Failure to follow this procedure in its entirety may cause an incorrect
“k” value reading.

Step Action

1 Turn EPAM-7500 on.
2 Press
3 When the EPAM-7500 starts to begin monitoring, the instrument

will run an auto zero one minute after beginning.
5 Remove Auto Zero filter and impactor sleeve.
6 Insert the span reference into the sensor head (see diagram 5.1).

Allow 2-3 minutes for reading to stabilize.
Note: Be sure the locating pin on the calibration reference slides
into the locating hole on the sensor head. Also, Push down on the
calibration reference to be sure it is aligned properly. Slightly twist
CS-105 clockwise when positioned in alignment hole. This will
ensure the CS-105 is in the exact position and ensure
reproducibility when “K” value is displayed on the EPAM monitor.

7 Observe the printed “k” value on the calibration reference.

Note: The printed “k” value should match the concentration value
shown on the Haz-Dust LCD to within + 10%.

graphic.

IF THEN

The numbers agree

within + 10%

The two numbers

do not agree within
+ 10%.

8 Remove Span Reference and place in its protective sleeve.

Note: Optical windows on CS-105 cannot have fingerprints or
contamination, please clean using KK-101 Cleaning Kit.

Note: If the CS-105 is purchased from SKC or as an after-market accessory,
the end user must assign “k” value. To assign “k” value repeat steps 1-6 three
times. Take an average of the three numbers you recorded to get your “k”
value.

The EPAM-7500 has passed the span
check test.

1. Repeat the process to rule out error,
then:

2. Call EDC technical support or
return the EPAM-7500 for
recalibration.

5-3

Checking the Flow Rate

Introduction

Checking the

Monitor

It is good technique to check the flow rate every time before and after a new
gravimetric filter is used for sampling.

Use the steps in the table below to check the flow rate.

flow rate

Notes:

• When using an impactor, be sure the proper sampling inlet is attached to

the sensor head.

Step Action

1 Attach your airflow calibrator to the EPAM-7500 using the table

below.

If sampling... Then...

PM-10, PM-

4.0, PM-2.5,
PM-1.0 or
TSP

2 Activate the internal sampling pump using the steps below.

Step Action

1 Select

3 Observe the flow rate on your air flow calibrator.

If... Then...

1. Attach one end of the calibration airflow
tubing to flow adapter.

2. Connect the other end of the calibration airflow
tubing to your airflow calibrator.

from the Main Menu.

The flow rate
is 2.0 LPM.

The flow rate
is not 2.0
LPM.
No flow is
present.

The flow rate is properly calibrated. Detach the
airflow calibrator tubing and continue with the
“Selecting the Particle Size” process.
The flow rate must be adjusted. See page 5-7 for
instructions.

See Troubleshooting section on Chapter 6.

5-4

Adjusting the Flow Rate

Introduction

Adjusting the

Settings

Lock

white box

HD7

Enter

Check Box

Force Pump On

Pump

Green

The flow rate must be adjusted when it does not equal 2.0 LPM.

Follow the steps in the table below to adjust the flow rate.

flow rate

1 Press
2 Press the button until you are on the last screen.
3 Press the
4 Press the
5 Press
6 Press the
7 Press the
8 Press the or to adjust

9 Record the Flow Rate.
10 Detach the airflow calibrator and calibration airflow tubing.
11 Press

from the main menu.

graphic to unlock the settings.

to enter the security code.

on the keyboard.

button on the keyboard.

next to the

to 2.0 LPM.

check button to accept changes.

.

5-5

Battery Maintenance

Introduction

Checking the

Recharging the

The battery pack is a 10.8-volt Li-Ion rechargeable battery. It is important to
check the battery periodically and recharge when necessary.

The battery status can be checked from any screen on the EPAM-7500. The

Battery

battery

graphical icon is on the bottom middle of the screen.

Follow the steps in the table below to recharge the battery using the supplied
charger.

Note: If the battery is too low, the EPAM-7500 will turn off. Charge the
battery for 15 minutes before turning on.

Step Action

1 Plug the battery charger into an electrical outlet.

2 Plug the battery charger into the battery charge jack on the top

panel of EPAM-7500, or into the supplied charging cord.

Results:

• LED indicator on front of the EPAM-7500 should be Red.

• When LED is green battery is fully charged.

Note: Recharging time is approximately 22 hours when the
instrument is not operating.

CAUTION: Do not charge in a hazardous environment. Use only

the EDC approved charger designed for the EPAM-7500.

5-6

Battery Maintenance, Continued

Removin

g and

Removing the

The battery pack can be removed and replaced whenever necessary.

replacing the
battery pack

Follow the steps in the table below to remove the battery pack.

battery

Step Action

1 Loosen the two retaining pem screws from the top plate of the

EPAM-7500.

NOTE: These are special inserts and the screws are attached by a
spring to tighten push the screw down and turn to loosen turn the
screw and it will pop on the spring DO NOT pull the screw
because you will break the spring and be unable to secure your

battery pack.
2 Slide the battery plate sideways out of the unit.
3 To re-install reverse above proceeding

Figure 5-3. Diagram of battery being removed from Haz-Dust.

5-7

Cleaning the Impactors

Cleaning the

Introduction

Impactors should be disassembled and cleaned and greased at regular
intervals.

Example: You should clean impactors every thirtieth sample or once a month
to start, but heavy loadings are observed on the target disk, as often as
appropriate.

Impactors

Follow the Steps in the table below to clean the impactors.

Step Action

1 Pushing with a pen from bottom remove the impactor through

top of impactor sleeve into the palm of your free hand.

2 Rinse the impactor from top to bottom with a solvent

(hexane, white gas, lantern gas) using a squeeze bottle,
paying particular attention to the impaction target disks. An
acceptable alternative method of cleaning involves the use of
an ultrasonic bath with mild soapy water solution.

Note: The impaction cup should be removed prior to re­greasing. This is accomplished by pulling the impaction cup
apart from the impactor jet gently.

3 Let all parts of the impactor air-dry.
4 Prepare a mixture of solvent and impactor grease (Apiezon ®

M, Glisseal ® Ht) or similar grease in a dropper bottle until
thoroughly mixed and of a fluid consistency. Use a 1-inch
length of grease to 30ml of solvent. Vigorously shake the
mixture until an opaque, uniform suspension, free from
grease globs, is obtained.

5-8

5 Put two or three drops of the solution on the impaction cup.

The drops should saturate the disk, flowing freely to the edge.

6 Let the impaction cup “dry” by allowing the solvent to

volatilize, leaving a thin film of grease on the impaction cup.

7 Replace the impaction cup onto the impactor jet. Re-insert

the impactor into the impactor sleeve.

5-9

Cleaning the Sensor Optics

Introduction

Cleaning the

Figure 5

-

4. Picture of the cleaning kit.

Although the EPAM-7500 has an internal sensor purge it is important to keep
the sensor optics of the EPAM-5000 clean to ensure the integrity of the
optical sensor.

The sensor optics needs to be checked every 2 months or on a weekly basis,
when used in a 2 to 3 mg/m3 T.W.A. environment.

Follow the steps in the table below to clean the sensor optics.

Sensor Optics

5-10

Cleaning the Sensor Optics, Continued

Step Action

1 Remove the screws located on sensor cover.
2 Inspect internal sensor. Inspect cavities for residual dust. Blow the

dust away with low-pressure air or wipe with foam tipped cotton
swab.

3 Inspect the glass lens covers for dust.

Note: Use one of the following methods to clean the glass lens.

• Blow the dust away with low pressure air, or,

• Use a small amount of isopropyl alcohol and wipe with cotton

swabs.

CAUTION: Do not spill any alcohol into the internal cavity of

the EPAM-7500.

4 Replace the sensor cover.
5 Tighten the screws snugly into place.

NOTE: If screws are not tightened enough the flow of the EPAM­7500 could be off.

5-11

Appendix

Appendix A Menu Screens

Introduction

This Appendix contains a complete overview of the Menu Screens for the
EPAM-7500.

The following pages show diagrams of the Main Menu Screens.
Note: Selecting Red X button will cancel from any Menu Screen will back
out of the current function.

Monitor

Run

Instrument

Record

Instrument

Settings

Alarm

Review

Unit/Card

Files

Upload To

Card

Compact

Flash Card

Settings

Date/time

Sample type

Auto Zero

Sensor

Settings

Flow Rate

Adjustment

Power

OFF

Suspend

Appendix A

Appendix B NIOSH/OSHA Particulate Air Monitoring
Reference

Dust/Hazard Agency Reference TWA STEL

alpha-Alumina (Respirable fraction) OSHA CIM 5 mg/m3
alpha-Alumina (Total dust) OSHA CIM 15 mg/m3
Aluminum, Pyro powders OSHA CIM *
Aluminum (Respirable fraction) 5 mg/m3
Ammonium nitrate OSHA CIM *
Ammonium sulfamate (Respirable dust) OSHA CIM 5 mg/m3
Ammonium sulfamate (Total dust) OSHA CIM 15 mg/m3
Ammonium sulfamate (Total dust) OSHA ID 188 15 mg/m3
Bismuth telluride, Se-Doped OSHA ID 121 5 mg/m3
Bismuth telluride, Undoped (Respirable dust) OSHA ID 121 5 mg/m3
Bismuth telluride, Undoped (Total dust) OSHA CIM 15 mg/m3
Boron oxide (Total dust) OSHA ID 125G 15 mg/m3
Boron oxide (Total dust) (Particulates, Total) NIOSH 0500 10 mg/m3
Carbon black NIOSH 5000 3.5 mg/m3
Carbon black OSHA ID 196 3.5 mg/m3
Chromium, Metal & Insol cpds OSHA ID 121 1 mg/m3
Chromium, Metal & Insol cpds OSHA ID 125 1 mg/m3
Chrysene OSHA 58 0.2 mg/m3
Coal dust (<than 5% SiO2) OSHA CIM 2.4 mg/m3
Coal dust (>than 5% SiO2) OSHA ID 142 10 mg/m3
Coal tar pitch volatiles OSHA 58 0.2 mg/m3
Copper dust NIOSH 7029 1 mg/m3
Copper, Dusts & Mists OSHA ID 125G 1 mg/m3
Copper, Dusts & Mists OSHA ID 121 1 mg/m3
Copper (Elements) NIOSH 7300 1 mg/m3
Copper fume NIOSH 7029 0.1 mg/m3
Copper fume OSHA ID 121 0.1 mg/m3
Copper fume OSHA ID 125G 0.1 mg/m3
Cotton dust (Raw) OSHA CIM 1 mg/m3
* Refer to Agency Method

Continued on next page

B - 1

NIOSH/OSHA Particulate Air Monitoring Reference, Continued

3

Dust/Hazard Agency Reference TWA STEL

Crag herbicide (Respirable dust) OSHA CIM 5 mg/m3
Crag herbicide (Total dust) NIOSH 5(S356) 10 mg/m3
Crag herbicide (Total dust) OSHA CIM 15 mg/m3
Cresol, All isomers NIOSH 2546 10 mg/m3
Cresol, All isomers OSHA 32 15 mg/m3
Cyanide (as Cn) OSHA ID 120 5 mg/m3
Fluorides (Aerosol & Gas) NIOSH 7902 2.5 mg/m3 5.0 (HF)
Glass, Fibrous dust OSHA CIM *
Glycerin mist (Particulates) NIOSH 0600 *
Glycerin mist (Respirable) OSHA CIM 5 mg/m3
Glycerin mist (Total dust) OSHA CIM 15 mg/m3
Grain dust (Oats, Wheat & Barely) OSHA CIM 10 mg/m3
Graphite, Synthetic (Respirable dust) OSHA CIM 5 mg/m3
Graphite, Synthetic (Total dust) OSHA CIM 15 mg/m3
Iodine (Particulates) OSHA ID 212 * 0.1
Kaolin (Respirable dust) OSHA CIM 5 mg/m3
Kaolin (Total dust) OSHA CIM 15 mg/m3
Lead NIOSH 7082 <0.1

mg/m3

Lead NIOSH 7105 <0.1

mg/m3

Lead NIOSH 7700 <0.1

mg/m3

Lead (Elements) NIOSH 7300 <0.1

mg/m3
Lead, Inorganic fumes & dusts (as Pb) OSHA ID 121 0.05 mg/m
Lithium (Elements) NIOSH 7300 *
Lithium hydride OSHA CIM 25 µ g/m3
Magnesium oxide fume (Total dust) OSHA ID 121 15 mg/m3
Manganese (Elements) NIOSH 7300 1 mg/m3 3 mg/m3
Manganese fume (as Mn) OSHA ID 121 * 5 mg/m3
Methoxychlor (Total Dust) OSHA CIM 15 mg/m3
Oil mist (Mineral) OSHA ID 128 5 mg/m3
Oil mist (Mineral) OSHA ID 178SG 5 mg/m3
Oil mist (Vegetable) (see Dust, Total and
Respirable nuisance)
Pentaerythritol (Total dust) OSHA CIM 15 mg/m3
Pentaerytritol (Respirable dust) OSHA CIM 5 mg/m3

Continued on next page

B - 2

NIOSH/OSHA Particulate Air Monitoring Reference, Continued

3

Dust/Hazard Agency Reference TWA STEL

Picloram (Tordon), Respirable dust OSHA CIM 5 mg/m3
Picloram (Tordon), Total dust OSHA CIM 15 mg/m3
Plaster of Paris (see Dust, Respirable
nuisance)
Portland cement (Respirable dust) OSHA ID 142 5 mg/m3
Portland cement (Total dust) OSHA ID 142 15 mg/m3
Respirable nuisance OSHA CIM 5.0 mg/m3
Respirable nuisance (Particulates) NIOSH 0600 *
Total nuisance OSHA CIM 15 mg/m3
Total nuisance (Particulates) NIOSH 0500 10 mg/m3
Rouge (Respirable dust) OSHA CIM 5 mg/m3
Rouge (Total dust) OSHA CIM 15 mg/m3
Silica, Amorphous OSHA CIM 20 mppcf
Silica, Crystalline tripoli, Respirable dust OSHA ID 142 0.05 mg/m
Silicon carbide (Respirable dust) OSHA CIM 5 mg/m3
Silicon carbide (Total dust) OSHA CIM 15 mg/m3
Silicon (Respirable dust) OSHA CIM 5 mg/m3
Silicon (Total dust) OSHA CIM 15 mg/m3
Soapstone (Respirable dust) OSHA CIM 20 mppcf
Soapstone (Total dust) OSHA CIM 6 mg/m3
Wood dust (except Western red cedar) OSHA CIM *
Wood dust (Western red cedar) OSHA CIM 2.5 mg/m3
Zinc bromide (see Dust, Total and Nuisance) *
Zinc oxide dust (see Dust, Total &
Respirable)
Zinc oxide fume OSHA ID 121 5 mg/m3
Zinc oxide fume OSHA ID 125 5 mg/m3
Zinc oxide fume OSHA ID 143 5 mg/m3
Zinc stearate (Respirable dust) OSHA CIM 5 mg/m3
Zinc stearate (Total dust) OSHA ID 121 15 mg/m3
Zinc stearate (Total dust) OSHA ID 125 15 mg/m3
Zirconium cpds (as Zr) OSHA ID 121 5 mg/m3

OSHA CIM

OSHA CIM

B - 3

Appendix C Glossary of Terms

Term Definition/Standard

µm Micron, 1/1000 of a meter.
ARD Arizona Road Dust
Inhalable Dust
Particulates
LPM Liters per minute.
mg/m3 Milligrams per cubic meter.
NIOSH National Institute of Occupational Safety & Health
OSHA Occupational Safety & Health Administration.
Respirable Dust
Particulates
STEL Short-term exposure level. Maximum dust

Thoracic Particulates Particulates having a 50% cut point at 10µm.
TWA Time Weighted Average. Average particulate

Particulates having a 50% cut point at 100µm.

Particulates having a 50% cut point at 3.5µm.

concentration over a 15-minute period.

concentration over a period of time.

Appendix C