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.
1997 Environmental Devices Corporation. All rights reserved throughout
the world.
Haz-Dust IV
™
is a registered trademark of Environmental Devices
Corporation. Other trademarks are the property of their respective holders.
ii
Page 4
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.
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Warranty
Environmental Devices Corporation (EDC) warrants only non-expendable
products, 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.
Expendable products (battery, o-rings, tubing, disposable filter cassette, etc.)
are warranted for a period of 90 days from receipt of shipment.
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.
If unit is still under warranty EDC will pay for its return to the purchaser.
EDC makes no other express warranty and disclaims any implied warranty of
fitness or merchantability.
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Table of Contents
Chapter 1 - Introduction to the Haz-Dust IV........................................................................................................ 1-1
Introduction to the Haz-Dust IV......................................................................................................................... 1-2
Overview of the Haz-Dust IV ............................................................................................................................ 1-4
Features .............................................................................................................................................................. 1-7
Chapter 2 - Operating Parameters of the HAZ-DUST IV................................................................................... 2-1
Turning the Haz-Dust IV On and Off ................................................................................................................ 2-2
Using the Menu .................................................................................................................................................. 2-3
Setting the Alarm................................................................................................................................................ 2-4
Setting the Date and Time .................................................................................................................................. 2-5
Clearing the Memory.......................................................................................................................................... 2-6
Chapter 3 - Operating the Haz-Dust IV ................................................................................................................ 3-1
Selecting the Particle Size..... ............................................................................................................................. 3-2
Chapter 4 - DustComm Pro V.1.2.......................................................................................................................... 4-1
Introduction to DustComm Pro V.1.2 ................................................................................................................ 4-2
Menu Selections ................................................................................................................................................. 4-5
File Menu Command ......................................................................................................................................... 4-6
DustComm Pro Window .................................................................................................................................. 4-11
Translating Data into ASCII Text File. ............................................................................................................ 4-14
Generating a Plot.............................................................................................................................................. 4-15
Data Plot Menu Selections ............................................................................................................................... 4-16
Editing a Title................................................................................................................................................... 4-17
Applying a Correction Factor........................................................................................................................... 4-18
Inability to Download....................................................................................................................................... 4-19
Checking the Calibration Span........................................................................................................................... 5-2
Checking the Flow Rate ..................................................................................................................................... 5-5
Adjusting the Flow Rate..................................................................................................................................... 5-7
Cleaning the Sensor Optics .............................................................................................................................. 5-12
Appendix A - NIOSH/OSHA Particulate Air Monitoring Reference.................................................................A-1
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Appendix B - Particle Size Selections.....................................................................................................................B-1
Appendix C - Glossary of Terms............................................................................................................................C-1
Appendix D - Haz-Dust IV Accessories .................................................................................................................D-1
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Chapter 1 - Introduction to the Haz-Dust IV
Page 9
Chapter Overview
Introduction
In this chapter
This chapter gives a complete overview of the Haz-Dust IV.
This chapter:
• Introduces and describes Haz-Dust IV.
• Explains operating principles of the Haz-Dust IV.
• Identifies features, specifications and components of Haz-Dust IV.
This chapter contains the following topics.
Introduction to the Haz-Dust IV 1-2
Overview of the Haz-Dust IV 1-4
Real-Time Dust Monitoring Principles 1-6
Features 1-7
Specifications 1-8
Components 1-9
Chapter 1
Introduction to the Haz-Dust IV
Topic See Page
Figure 1-1. Picture of the Haz-Dust IV.
1 -
1
Page 10
Introduction to the Haz-Dust IV
Introduction
The Haz-Dust IV is the worlds first personal dust monitor to combine
traditional filter techniques with real-time monitoring methods. These
techniques combine to overcome limitations of all other dust monitoring
products.
Figure 1-2. Diagram of the Haz-Dust IV.
Figure 1-3. Diagram showing components used for both the traditional and real-time dust
monitoring methods.
Continued on next page
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2
Page 11
Introduction to the Haz-Dust IV, Continued
Comparison of
methods
Description of
traditional
method
Advantages of
traditional
method
Description of
real-time
method
1
The traditional and real-time dust monitoring methods are described below.
Air is drawn by a vacuum pump through a 25mm or 37mm diameter
membrane filter. The fibers and particles collected on the membrane filter
must be counted or weighed in a laboratory for further analysis.
• 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 IV’s LCD. All data points are stored in memory for later
analysis.
Advantages of
real-time
method
1
• Immediate estimations of the concentration of a contaminant, permitting
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 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, DCD,
NIOSH, 1973.
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Page 12
Overview of the Haz-Dust IV
Ease of use
General
Information
• The user controls all functionality and programming using menus displayed
on a high contrast LCD.
• The compact unit attaches to the workers waist allowing for flexibility
during on-site monitoring.
• A detached sensor head easily attaches to the worker for true breathing zone
measurements.
• A user adjustable alarm can be preset to alert the worker of approaching
threshold limits.
• The LCD displays real-time concentration in milligram per cubic meter
(mg/m
3
) in accordance with OSHA Reference Methods.
• Statistical information of TWA, STEL, Max and Min levels can be viewed
instantly.
• The Haz-Dust IV is calibrated using Arizona Road Dust (ARD) against
NIOSH method 0600 for Respirable dust with a +
• The calibration of the Haz-Dust IV can be adjusted to compensate for
Thoracic, Respirable, or Inhalable changes in particle composition and
distribution.
10% accuracy.
Figure 1-4. Diagram showing breathing zones of Inhalable, Thoracic, and Respirable dust
particles.
Continued on next page
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4
Page 13
Overview of the Haz-Dust IV, Continued
DustComm Pro
Software
The Haz-Dust IV comes equipped with DustComm Pro software, which
allows internally stored data to be downloaded to a PC for further analysis.
DustComm Pro software is designed for more detailed analysis of sampled
data. Pull down menus provides a user-friendly environment to store and
analyze data and print management ready reports.
Data can easily be exported in comma-delimited ASCII Text Files importable
into spreadsheet programs such as Microsoft Excel.
The data plots provided with DustComm Pro enable:
• Detailed statistical analysis.
• Creation of graphics and charts.
• Mathematical correction of particle characteristics when aerosol
significantly differs from calibration dust.
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Page 14
Features
Introduction
Real-time
display of
Functional
features
The Haz-Dust IV 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.
• Thoracic, Respirable or Inhalable Particulate Mass.
• True breathing zone measurements.
• Stored data by location code.
• Calibration to NIOSH methods for lung damaging particles.
• In line concurrent filter samples for gravimetric analysis.
• High sensitivity of 0.01 to 200 mg/m
3.
• Interchangeable size-selective sampling inlets.
• Internal air sampling pump.
• Simple cleaning of sensor hardware.
• Easy user access to rechargeable battery and internal filter.
Operational
features
Data
management
Security feature
• On-screen programming of sampling and data storage parameters.
• Real-time clock.
• User selectable audible alarm.
• In-field zero and span check of instrument calibration.
• Choice of 1 second, 1 minute, or 10 minute averaging/storage intervals.
• Up to 21 weeks of sample/record time.
• Memory storage of up to 21,500 data points that can be distributed into a
maximum of 999 location files.
• DustComm Pro Software supplied with RS-232 cable for downloading data
to a PC.
• Data translation to ASCII text files, importable into Excel or Lotus 1-2-3.
Security access code of 1209 which prevents anyone from viewing, printing
or downloading the data stored in the Haz-Dust IV.
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Page 15
Specifications
Introduction
The Haz-Dust IV meets the following specifications.
SPECIFICATION RANGE
Calibration NIOSH 0600 with SAE Test Dust
Accuracy + 10%
Precision 0.02 mg/m3
Sensing range 0.01 to 200 mg/m3
Particle size range
Recording time 1 second, 1 minute and 10 minute averages
Flow rate 1.5 to 2.3 LPM
Memory 21,500 data points
Locations Up to 999 storage locations
Output RS-232
Operating temperature
Humidity range 95% non-condensing
Battery Rechargeable NiCad
Battery life 8 hours
Charging time 8 hours
Size 9 x 3.5 x 2.5 in (22.9 x 8.9 x 6.4 cm)
Weight 3 lbs. (1.4 kg)
0.1 to 10 µm Respirable
0.1 to 50 µm Thoracic
0.1 to 100 µm Inhalable (IOM)
32 to 120° F (0° -50°C)
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Page 16
Components
Components
The following components ship with the Haz-Dust IV.
• Haz-Dust IV Monitor.
• Battery charger.
• Trimming tool.
• Detachable Thoracic sampling inlet.
• Opaque filter cassette holder.
• Haz-Dust IV Multi Media CD-Rom Including: DustComm Pro Software
and the Instruction Manual.
• RS232 9-pin serial cable (female to male).
• Zeroing filter.
• Durable carrying case.
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Page 17
Chapter 2 - Operating Parameters of the Haz-Dust IV
Page 18
Operating Parameters of the Haz-Dust IV
Chapter Overview
Introduction
In this chapter
This chapter describes the steps involved in starting the Haz-Dust IV and
configuring its operating parameters.
This chapter contains the following topics.
Turning the Haz-Dust IV on and off. 2-2
Using the Menu. 2-3
Setting the Alarm. 2-4
Setting the Date and Time. 2-5
Clearing the Memory. 2-6
Chapter 2
Topic See Page
2 -
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Page 19
Turning the Haz-Dust IV On and Off
Introduction
Power-On
Power-Off
Power can be supplied to the Haz-Dust IV either from its internal battery or
from an AC power source.
Note
: THE BATTERY MUST BE FULLY CHARGED before each use. See page 5-
8 for information on battery maintenance.
Press the ON/OFF key to turn the Haz-Dust IV monitor on.
Result:
The unit will turn on and the Title Screen will appear.
Note:
Allow at least two minutes for the Haz-Dust IV to equilibrate and
stabilize.
Press the ON/OFF key a second time to turn the Haz-Dust IV off.
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Page 20
Using the Menu
Introduction
Accessing the
main menu
Using the menu
The Haz-Dust IV menu appears on the 4x20-character liquid crystal display
(LCD).
Note:
Press ENTER from the Title Screen to access the Main Menu.
The Haz-Dust IV is operated using the following menu selections.
<I/O>
<ENTER>
< → >
< ↑ >
< ↓ >
See Appendix A for menu option flow charts.
Selection Function
Turns the Haz-Dust IV on and off.
Activates the selected option.
Selection Arrow. Indicates the
selected menu option. Located on the
LCD Display.
Scrolls the Selection Arrow up one
line in a menu list.
Scrolls the Selection Arrow down
one line in a menu list.
** Haz-Dust IV **
Personal Real-Time
Particulate Monitor
E.D.C. Ver 1.0 5/05
Figure 2-2. The Title Screen of the Haz-Dust IV.
→ Run
Review Data
Special Functions
Auto Zero
Figure 2-3. The Main Menu of the Haz-Dust IV.
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Page 21
Setting the Alarm
Introduction
Alarm settings
Using the 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 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
2
3 Enter the appropriate concentration level using the table below.
Increase the value of the
Decrease the value of the
Select the next digit.
4
Select Special Functions from the Main Menu.
Select Set Alarm.
To... Press...
< ↑ >
selected digit.
< ↓ >
selected digit.
ENTER
Press ENTER after the last digit is entered.
Result:
The alarm has been set and the Main Menu appears.
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Page 22
Setting the Date and Time
Introduction
Date and Time
settings
View 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.
Date is entered and displayed in European format (i.e., MON. 17-DEC-04).
Follow the steps in the table below to check the units date and time.
Step Action
1
2
3
4
Select Special Functions from the Main Menu.
Select Date/Time.
Select View Date/Time.
Result:
Press ENTER to return to the Date/Time Screen.
The unit’s current date and time will display.
Change settings
Follow the steps in the table below to change the units date and time.
Step Action
1
2
3
4 Enter the correct date and time using the steps in the table below.
5
Select Special Functions from the Main Menu.
Select Date/Time.
Select Set Date/Time.
Increase the value of the selected digit.
Decrease the value of the selected digit.
Select the next digit or field.
Update the selected date and time.
Return to the Date/Time screen without
To... Press...
Press ENTER when the correct information has entered.
To... Select...
saving changes.
< ↑ >
< ↓ >
ENTER
Set Date/Time
Cancel
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Clearing the Memory
Introduction
Clearing
memory
The memory of the Haz-Dust IV can be cleared at any time.
Note:
All data points in all locations will be deleted from memory.
Follow the steps in the table below to clear the memory of the Haz-Dust IV.
Step Action
1
2
3
4
Select Special Functions from the Main Menu.
Select System Options.
Select Erase Memory.
Select Yes to clear memory.
Note:
memory.
Selecting No will cancel the process without clearing
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Chapter 3 - Operating the Haz-Dust IV
Page 25
Chapter Overview
Introduction
In this chapter
This chapter describes and diagrams operation procedures of the Haz-Dust
IV.
Inhalable Dust Particulates 3-5
Auto-Zero 3-7
Sampling 3-10
Location Codes 3-13
Reviewing Stored Data 3-14
Statistics Menu Tree 3-16
Chapter 3
Operating the Haz-Dust IV
Topic See Page
3 -
1
Page 26
Selecting The Particle Size
Introduction
Inlets
The inlet system of the Haz-Dust IV can be configured to sample Thoracic,
Respirable, or Inhalable dust particulates. The following pages detail the
selection process for each of these particle types.
The table below lists the particulate type, agency standard, and required
inlets.
Note: Inhalable particulate samples require the IOM inlet (detail C) to be
inserted into the Thoracic sampling inlet.
Detail
B
25mm Cyclone Inlet
C
Adapter Inlet
Figure 3-1. Diagram of sampling inlets for Thoracic (A), Respirable (B) and Inhalable (C)
dust particles.
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Page 27
Thoracic Dust Particulates
Thoracic Follow the steps in the table below to select Thoracic dust particulates.
Step Action
1
2
3
4
5
6 Thread the Thoracic sampling inlet into Haz-Dust IV sensor.
7 Attach the filter cassette to the sensor head of the Haz-Dust IV.
8 Attach the air intake tubing to the filter cassette.
9 Turn to page 3-7 and follow the instructions to Auto-Zero the Haz-
Select Special Functions from the Main Menu.
Select System Options.
Select Extended Options.
Select Size Select, then Select.
Select Thoracic.
Result:
The Main Menu is displayed.
Note:
The sampling inlet contains plastic threads be careful not to
cross threads. To insert and remove the sampling inlet it must be
screwed in and out.
NOTE: Sensor must be removed from lapel bracket prior to
installation.
Note:
If also collecting concurrent 37mm 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.
Dust IV.
Figure 3.2a
Figure 3-2 and 3-2a. Thoracic Inlet, sensor head, disassembled filter cassette, 37 mm filter, and
air intake tubing. Optical sensor mounted on lapel bracket.
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Respirable Dust Particulates
Respirable Follow the steps in the table below to select Respirable dust particulates.
Step Action
1
2
3
4
5
6 Screw in GS cyclone adapter p/n GSA-202 into bottom of sensor.
7 Attach the filter cassette to the sensor of the Haz-Dust IV.
8 Attach the air intake tubing to the filter cassette.
9 Turn to page 3-7 and follow the instructions to Auto-Zero the Haz-
Select Special Functions from the Main Menu.
Select System Options.
Select Extended Options.
Select Size Select, then Select.
Select Respirable.
Result:
The Main Menu is displayed.
Insert the GS-Cyclone into the GSA-202.
NOTE: The sensor lapel bracket will have to be removed to install
the GSA-202 and GS Cyclone.
Note:
If also collecting concurrent 37mm 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 55 for information on checking the flow rate.
Dust IV.
Figure 3.3. Component identifications from left to right: SKC GS-Cyclone for Respirable
sampling, GSA-202 adapter, sensor head, disassembled filter cassette, filter, and air intake
tubing.
*Requires the GSA-202 Cyclone adapter to fit.
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Page 29
Inhalable Dust Particulates
Inhalable
Selecting
Inhalable
When using the Haz-Dust IV monitor for Inhalable sampling a suitable entry
must be used.
The SKC IOM Adapter is designed to allow the use of the front half of an
IOM cassette and lock ring as an Inhalable entry to the Haz-Dust IV sensing
chamber.
Follow the steps in the table below to select Inhalable dust particulates.
Step Action
1
2
3
4
5
Select Special Functions from the Main Menu.
Select System Options.
Select Extended Options.
Select Size Select, Then Select.
Select Inhalable.
Result:
The Main Menu is displayed.
6 Assemble the IOM & IA-202 as configured in diagram 3.4 &
illustration 3.5.
Note:
If also collecting concurrent 37mm 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.
SKC IOM components used consists of IOM front plate, cassette front and cassette
grid. IA-202 accessories consist of rubber washer, ring filter and end cover
adapter.
Figure 3-4.IOM component identification layout from left to right. IOM front
plate, cassette front, rubber washer, sensor head, filter ring, cassette grid and end
cover adapter.
Continued on next page
3 -
5
Page 30
Inhalable Dust Particulates, Continued
7 Follow the steps in the table below to prepare the IOM sampling
adapter for use with the Haz-Dust IV.
Step Action 1 Insert rubber washer into IOM cassette front.
Place into sensor and screw the IOM front plate
over it into the sensor.
2 Attach the cassette grid to the filter ring. 3 Push end cover over cassette grid and filter ring.
See figure 3.5 for visual aid.
8 Attach the air intake tubing to the end cover.
9 Turn to page 3-7 and follow the instructions to Auto-Zero the Haz-
Dust IV.
Figure 3-5. Disassembled IOM Sampling Adapter. SKC catalog number 225-70.
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Page 31
Auto-Zero
Introduction
Auto-Zero
Auto-Zero sets the measurement baseline of the Haz-Dust IV to zero mg/m3.
The Auto-Zero check should take place prior to beginning a new set of
measurements.
Follow the steps in the table below to Auto-Zero the Haz-Dust IV.
Note:
The battery should be fully charged before beginning the Auto-Zero
process.
Step Action
1 Be sure the appropriate sampling inlet is attached to the sensor
head of the Haz-Dust IV using the table below.
If sampling... Then insert the...
Thoracic Particulates Thoracic sampling inlet Inhalable Particulate SKC IOM and IA-202
sampling inlet
Respirable Particulates SKC GS Cyclone and GSA-
202 sampling inlet
Figure 3-6. Diagram of zeroing filter being inserted into the Thoracic sampling inlet. This
procedure is used for both Thoracic and Inhalable dust particles.
Continued on next page
3 -
7
Page 32
Auto-Zero, Continued
2 Insert the Zeroing Filter using the table below.
Thoracic Particulates
Inhalable Particulates
Respirable Particulates
If Sampling... Then...
Insert the zeroing filter into the
(Figure 3.7a)
(Figure 3.7b)
(Figure 3.7c)
Thoracic sampling inlet.
Insert the zeroing filter (p/n ZA202A) into the front of the IOM
front plate refers to figure 3.7b.
Insert the zeroing filter into the
bottom of the GSA-202. GS-Cyclone
adapter.
Figure 3.7a Zeroing filter (p/n ZF-102) being attached to the Thoracic sampling inlet.
Figure 3.7b. Zeroing filter (p/n ZA-202A) being attached to the Inhalable sampling
inlet.
Figure 3.7c. Zeroing filter (p/n ZF-102) being attached to GSAS-202 GS-Cyclone
adapter.
Continued on next page
3 -
8
Page 33
Auto-Zero, Continued
3
4
5 Remove the zeroing filter and begin the sampling process
Select Auto Zero from the Main Menu.
Select Auto-Zero.
Result:
Note:
necessary to reestablish the baseline.
Result:
is complete.
described on page 3-10.
The Auto-Zeroing screen appears briefly.
Wait 50 Seconds. The unit automatically executes the steps
The Main Menu is displayed when the auto-zero process
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Page 34
Sampling
Introduction
Conditions
Once you have selected a Particle Size and completed the Auto-Zero process
the Haz-Dust IV is ready to begin sampling.
The following conditions must 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
The correct date and time must be set. 2-5
The Auto-Zero process must be complete. 3-7
The alarm level must be set if sampling with
2-4
the alarm feature.
Sampling
Follow the steps in the table below to begin dust sampling.
Step Action
1
Select Sample Rate from the Special Functions Menu.
Figure 3.10. The Data Record Screen. The table below describes the
diagram details.
Detail Explanation
A Indicates Location Code of data being sampled. A record
B Particulate type being sampled.
C Concentration. A negative number may indicate the baseline of
A
C
should be kept of the site that corresponds to each location
code.
Note:
See page 3-13 for explanation of location codes.
T = Thoracic
R = Respirable
I = Inhalable
the unit is not set to zero and the Auto-Zero process should be
performed (page 3-7).
Ending the
Sampling
process
Press ENTER to stop data collection and return to the Main Menu.
Note:
If the security feature was used during sampling a confirmation screen
will require the security code of 1209 to be entered.
3 -
12
Page 37
Custom Correction Factor on HD-1004
Before a SCALE factor can be entered, a gravimetric result must be obtained from the filter
contained behind the sensing head. The filter must be preweighed.
Step 1:
Go to Special Functions option by pressing either the down button or the up
button until the arrow is opposite Special Functions. Press ENTER button.
Step 2:
Scroll arrow to System Options option and press the ENTER button.
Step 3:
Scroll arrow to Extended Options and press ENTER button.
Step 4:
Scroll arrow to Size Select Option and press ENTER button.
Step 5:
Scroll arrow to Apply Scale Option and press ENTER button.
Step 6:
Scroll arrow to Respirable, Thoracic, or Inhalable Option and press ENTER.
The fraction selected depends on the fraction you have sampled and obtained
a gravimetric result for. NOTE: To do this for respirable you must have a
gravimetric result, obtained by using the IOM with foam and filter.
Step 7:
Default scale of 01.00 will be seen. Enter the SCALE factor required by using
the UP, DOWN and ENTER buttons. The screen will now return to the
APPLY SCALE screen.
How to Calculate the SCALE Factor:
The TWA result obtained from the filter used during a monitoring exercise
is compared against the TWA displayed by the HD-1004 LCD in the
REVIEW DATA option.
From the two results a simple calculation is used to obtain the SCALE
factor for that sample and atmosphere type.
Run
Review Data
Special Functions
Auto-Zero
System Options
Date/Time
Set Alarm
Cancel
Extended Options
Sample Rate
Erase Memory
Cancel
Size Select
Battery Status
Cancel
Select
Apply Scale
Restore Default
Cancel
Respirable
Thoracic
Inhalable
* SCALE *
Scale: 01.00
Filter TWA result
HD-1004 TWA result
EXAMPLE:
Filter TWA was 5 mg/m
HD-1004 TWA was 2.5 mg/m3
2.5
Scale factor to be entered for the next
sample in the same atmosphere is 02.00
5
=
3 -
= SCALE
3
13
Page 38
Location Codes
Introduction
Maximum
location codes
Assigning
location codes
The Haz-Dust IV assigns a location code to each sampling sequence. The
active location is indicated in the Data Record Screen (figure 3.10).
The Haz-Dust III can store a total of 21,500 data points, which can be
distributed into a maximum of 999 locations.
The location code assigned to the site is determined by the memory storage
type selected in step number three of the sampling process (page 3-10).
Use the table below to identify the location code being used.
Data storage type selected... The Haz-Dust IIV Assigns...
Continuation
Overwrite
The Next Consecutive Value as the
Location Code.
Example:
If data was previously stored
in locations #001 and #002 the data being
collected will be stored in location #003.
001 as the Location Code and all
previously stored data points in all
locations are erased.
3 -
14
Page 39
Reviewing Stored Data
Introduction
LCD display
The Haz-Dust IV provides extensive capabilities for reviewing internally
stored data and statistics on the LCD.
The following information is displayed on the LCD.
Display Description
Date Date of sampling.
Start Time sampling began.
Stop Time sampling was terminated.
Time 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
Elapsed Elapsed time of the time weighted average.
S.T.E.L. Short-term exposure limit.
particles.
Viewing data
on the LCD
Follow the steps in the table below to review stored information and statistics.
Review the flow chart on page 3-16.
Step Action
1
2
Select Review Data.
Select Statistics.
3 Determine your next step using the table below.
Memory holds data points in
Memory has been cleared of
If... Then the...
Review Location Screen
other locations.
appears.
The Scanning Memory
all data points.
Screen displays. Go to step 7.
4 Select the Location using the table below.
The Location displayed in the
A different Location
To review... Select...
Review Loc XXX and go to
Review Loc field.
step 7.
New Location and continue
to step 5.
Continued on next page
3 -
15
Page 40
Reviewing Stored Data, Continued
5 Enter the desired Location in the Location Select Screen using the
table below (figure 3-11).
Increase the value of the selected digit.
Decrease the value of the selected digit.
Select the next digit or field.
6
7 The first of five statistics screen appears when data is computed.
To... Press...
Press ENTER when the desired location code has been entered.
Result:
being reviewed for the first time scrolling dots will appear
indicating the microprocessor is computing data.
Scroll through the statistics screens using the table below.
The Scanning Memory Screen displays. If the location is
Press... To Scroll...
< ↓ >
< ↑ >
Forward through the statistic screens.
Backward through the statistic screens.
Figure 3-11. Location Select Screen. Range: indicates number of location files stored in
memory. Loc: indicates location code being reviewed.
3 -
16
Page 41
Chapter 4 – DustComm Pro V.1.2
Page 42
Introduction to the DustComm Software
Introduction
Spreadsheet
applications
Data plots
DustComm is a powerful and flexible Windows application software package
designed for use with the Haz-Dust Particulate Monitoring Equipment.
DustComm is both communications software that enables stored project data
to be downloaded to a PC, and a data manipulation tool, enabling detailed
analysis and reporting of sampled data.
DustComm easily translates data into spreadsheet ASCII text files. These
files can be open into spreadsheet programs such as Microsoft Excel
The data plots provided with DustComm enable:
• Detailed statistical analysis.
• The creation of graphics and charts.
• The mathematical correction of particle characteristics when aerosol
significantly differs from calibration dust.
4-
2
Page 43
Installing DustComm
Introduction
Minimum
system
requirements
Software
installation
DustComm installation is easy and quick, the entire process should take less
than 5 minutes.
Windows ME or Higher.
4 MB available disk space.
8 MB RAM.
Follow the steps in the table below to install DustComm.
Note:
It is assumed that the CD-Rom Drive is the “D” Drive. Substitute D
with the appropriate drive letter if necessary.
Step Action
1 Start Windows.
2 Close all open applications.
3 Insert Installation Disk into the D drive.
4 Open My Computer
5 Select the folder named “DustComm V1.2” and double click to
enter.
6 Select the icon named “Setup” and double click. See Figure1.
7 Follow the installation wizard steps.
Figure 1: DustComm Software Folder with “Setup” Selected in Windows XP.
4-
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Page 44
Loading the DustComm Software
Windows ME
Windows NT,
2000 & XP
Follow the steps in the table below to load the DustComm software if using
Windows ME.
Step Action
1 Select the Start Menu.
2 Select Programs.
3 Select the folder EDC DustComm Pro 1.2
4 Select DustComm Pro 1.2
Follow the steps in the table below to load the DustComm Software if using
Windows NT, 2000 & XP.
Step Action
1 Double Click on the icon on your desktop.
NOTE: If shortcut icon does not appear on desktop follow the
steps for Windows ME.
Figure 2. DustComm Screen immediately after loading software.
4-
4
Page 45
d
Menu Selections
Introduction
Figures 3 through 5 show each of the DustComm menu options.
Note:
If a menu option is displayed in light type it is not available during the
current task.
Opens Saved Files
Saves Current Open Files if changed
Saves Current Open Files, that have not yet been saved
Closes Open Files
Saves Current Open Files as a text file, so that you can
open the data up in a spreadsheet
Exits the entire Program
Figure 3. File Menu Options.
Downloads Instrument
Figure 4. Unit Menu Options.
Selects Instrument and Com Port that you want to
downloa
Write Notes about the Open File
Print Current Open Location
Figure 5. Location Menu Options.
Figure 6. Plot Menu Options.
Figure 7. Help Menu Options.
Review the data in a statistical graph that was previously
saved
Register the DustComm Software and Instrument
Information about DustComm Pro 1.2
4-
5
Page 46
File Menu Commands
Introduction
Opening an
existing project
folder
Saving a
project folder
Use the File Menu option to open, save, print, close and export sampled data.
You can also use the File Menu to Exit the DustComm Pro Software
Notes:
• Data is sorted by time collected.
• Data points are reported in mg/m
Follow the steps in the table below to retrieve stored project data.
NOTE: A sample .dcm file is preloaded for review of software options.
Step Action
1
2
Select File.
Select Open.
3 Double click on the desired Project Folder.
Note:
DustComm will save all files in My Documents, or user
selected folder.
Follow the steps in the table below to store project data.
Step Action
1
2
Select File.
If... Then Select...
• Saving the data in the project
folder for the first time, or,
• Saving an existing folder to a
new name or location.
Saving an updated version of an
existing project folder to the same
file name and location.
Result:
file name is displayed in the title bar. Only with Save As with the
data have a new file name and location if selected.
3
.
1. Save As, then,
2. Type a file name for
the project file.
3. Select OK.
Save
The data is saved in the new project folder and the new
Continued on next page
4-
6
Page 47
File Menu Commands, Continued
Exit software
Exit Communication Software in one of two ways.
Option
number
1
Or
2 Single click on the “X” in the upper right hand corner of the
1. Select File.
2. Select Exit.
screen.
Action
4-
7
Page 48
Downloading Data
Introduction
Downloading
data
Connect the
cable
Preparing the
PC
Internally stored data can be downloaded to DustComm for detailed analysis.
The three major steps used to download data from the EDC dust-monitoring
unit to a PC are listed below and detailed in the next few pages.
1. Connect the cable.
2. Prepare the PC for data transmission.
3. Prepare the EDC dust-monitoring unit for data transmission.
Follow the steps in the table below to connect the cable for data transmission.
Step Action
1 Connect one end of the supplied RS232 cable to the EDC dust-
monitoring unit.
Note:
serial to USB adapter.
2 Connect the other end of the RS232 cable to the appropriate
COMM port on the PC.
Note:
connection can disrupt data transmission.
Follow the steps in the table below to prepare the PC for data transmission.
Note:
Multiple locations will be separated by tabs at the bottom of the
program.
Step Action
1 Open DustComm.
2
3
Select Unit and Select Properties.
Under the Properties selection choose your unit and the Com Port
that you want to connect. Press Ok when you are finished
4
Select Unit and Select Download.
5 When the items above are finished you should see the download
box appear.
If USB compatibility needed you will need to purchase a
Check that both connections are secure. An intermittent
Continued on next page
4-
8
Page 49
Downloading Data, Continued
Preparing the
unit.
Follow the steps in the table below to prepare the EDC unit for data
transmission.
Step Action
1
Select Playback or Review Data (depending on your instrument)
from the Main Menu on the unit.
2
3
4
Select Download.
Select To Dust Data Collector.
Press ENTER.
Result:
The Transmitting window appears.
Note:
Bars on the PC screen should increase as the unit
downloads.
5 When the transmission is complete...
• The To Dust Data Collector selection screen is displayed on
the units monitor. The unit may be shut off at this time.
• The downloaded data is displayed in the Project Folder on the
PC. (Figure 8).
Figure 8. Project File after data has been transmitted.
4-
9
Page 50
DustComm Pro Window
Introduction
Each section of the DustComm Pro Window will explain a different part of
the statistics.
Location
Information
Dataset
Information
The Location information will give you general details about the
downloading statistics. Such as date, time, start/stop time, data rate, duration,
how many samples where downloaded and the unit. There is also box so that
you can name the location and a shortcut to type in any notes you would like
to add.
Figure 9. Location Information section of the DustComm Pro Window.
The Dataset Information will tell you more specific information about the
downloaded statistics. Such as type of data, the average, the Max/Min
Sample and the Max STEL.
Figure 10. Dataset Information section of the DustComm Pro Window.
Continued on the next page
4-
10
Page 51
DustComm Pro Window, Continued
Dataset Scale
Factor
Quick Plot
The dataset scale factor section of the DustComm Pro Window, is so that you
can adjust the scale to be equal to your specific type of dust. You can read
more about adjusting the scale factor on page15.
Figure 11. Dataset scale factor section of the DustComm Pro Window.
The Quick Plot graph shows you a miniature version of the Full Plot. The
Full Plot button is located directly below Quick Plot can you can read more
about Full Plot on pages11-14.
Figure 12. Quick Plot & Full Plot Button on the DustComm Pro Window.
4-
11
Page 52
DustComm Pro Window, Continued
Location Data
The location data section shows you the milligrams per cubic meter you
sampled for and the times that they were sampled at.
Figure 13. Location Data on the DustComm Pro Window.
4-
12
Page 53
Translating Data to an ASCII Text File
Introduction
Translating
data
Project Data must be translated into ASCII text format before it can be read
by a spreadsheet application.
Follow the steps in the table below to Translate Project Data into ASCII Text
format.
Note:
A Project Folder must be open to access the translate feature.
Step Action
1
2 Select Export.
3 An “Export Locations” Window will appear. Select either All for
4 An “Export To…” Window will appear. Type in the name that
6 When you are ready to open the data in a spreadsheet application.
Select File from the Main Menu.
all locations or select the range of locations you would like to
export. Click OK when you have selected your locations.
you would like to call your exported data and click Save.
Open the spreadsheet program go to the Open menu, select all
files under type of file name and double click on the file you want
to review. This will result in your saved data opening in your
spreadsheet program.
Figure 14. Exported Excel information.
4-
13
Page 54
Generating a Plot
Introduction
Generating a
graph
A graph can be plotted with full plot located at the bottom of the DustComm
Pro Window.
Follow the steps in the table below to generate a graph using the DustComm
Plot menu selections.
Step Action
1
2
3 The result is graph will be plotted to the screen (see figure 15
Select Plot.
Select Review. This option is for graphs that have already been
saved.
Note: For new statistics click on the “Full Plot” Icon on the
DustComm Pro Window.
below).
Continued on next page
4-
14
Page 55
Data Plot Menu Selections
Introduction
At the top of the data plot will be a button bar. Below is an explanation of
what each button does.
Number Function
1 Saves plotted information as a DustComm Pro Chart (*.dcc).
2 Copies plot to a bitmap file.
3 Edits the title of the plot.
4 Page Setup Properties.
5 Prints the current plot.
6 Zooms into plot. By Highlighting from point to point that you want
zoomed in on.
7 Returns to full screen of plot.
8 Adds or removes vertical lines.
9 Adds or removes horizontal lines.
10 Select the specific type of graph, i.e. bar or line graphs.
11 Changes color of the graph.
111098 7 6 5 4 3 2 1
4-
15
Page 56
Data Plot Menu Selections, Continued
Number Function
1 Pointer tool.
2 Insert Squares.
3 Insert Ovals.
4 Insert arrows.
5 Insert arched lines.
6 Insert a picture. Choose the size of your picture and then right
click on the box and select properties. Select the picture tab and
select picture. The picture you chose will appear in the box.
7 Insert a text box.
8 Insert a callouts with text.
9 Change the color of your squares, ovals, text boxes and callouts.
10 Change the color of the text in your text boxes and callouts.
11 Copy squares, ovals, text boxes and callouts.
12 Paste squares, ovals, text boxes and callouts.
13 Bring squares, ovals, text boxes and callouts to front.
14 Send squares, ovals, text boxes and callouts to the back.
15 Group squares, ovals, text boxes and callouts.
16 Ungroup squares, ovals, text boxes and callouts.
17
18 Flip over up and down squares, ovals, text boxes and callouts.
19 Rotate squares, ovals, text boxes and callouts clockwise.
20 Rotate squares, ovals, text boxes and callouts counterclockwise.
21 Properties of selected squares, ovals, text boxes and callouts.
Flip over left to right squares, ovals, text boxes and callouts.
15 16 17 18 2120 19141312111098 7 6 5 4 3 2 1
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Page 57
Editing Title
Introduction
Editing the title
A customized title can be added to a graph before printing.
Follow the steps in the table below to add a title to the graph.
Step Action
1 Have location plotted already.
2
Select the Edit Title button on the menu bar.
3 A Window will appear where you can edit the title for what you
would like its name to be.
4
Select OK when the correct title is in the box.
Result:
The graph will be created with the new caption.
Figure 16. Edit Title Window.
4-
17
Page 58
Applying a Correction Factor
Introduction
Calculating a
correction
factor
Applying a
correction
factor
A correction factor can be applied to the data collected with the EDC unit to
account for variances in gravimetric readings.
The correction factor is calculated by dividing the Gravimetric reading by the
EDC unit reading.
Follow the steps in the table below to apply a correction factor to all data
points in the current project folder.
Step Action
1
Select the 2nd Scale= with a box where you can type in your scale
factor.
2 Type in the Scale factor.
3 After the scale factor is entered press enter.
Result:
All data points in the project folder have been multiplied
by the correction factor.
Removing the
correction
factor
Follow the steps in the table below to remove the correction factor from the
data points in the project folder.
Step Action
1
Select the 1st Scale= under the Dataset Scale Factor.
Result:
Data points should return to original state.
4-
18
Page 59
Inability to Download Data to PC
Introduction
If DustComm Software installs properly but downloading instrument to
computer is unsuccessful try the following:
• Ensure that the RS232 cable connectors from the PC are tightly
screwed into place.
• Ensure that the communications settings are set appropriately in the
Download Properties screen of the DustComm program. Select Unit,
Properties to access this dialog box. The communications port must be
set to the appropriate Com Port used on the PC.
• If you are experiencing problems downloading your unit’s results to
your PC, and the RS232 cable connectors are secured tightly, your
cable may be connected to the wrong 9-pin port on your PC. If your
PC has more than one 9-pin connection port, attach the cable to
another 9-pin port and try to download the dust monitor’s results at
that port. You may need to try all of your PC’s 9-pin ports before
finding the correct connection.
• If the previous steps check out, try using the Windows supplied
HyperTerminal or other appropriately configured communications
software to receive data when downloading from the Haz-Dust
Monitor.
• If using a USB port, make sure you are using the proper USB to serial
adapter.
For service or Technical Questions please call 800-234-2589 or e-mail
techsupport@hazdust.com
Page 60
Chapter 5 - Maintenance
Page 61
Chapter Overview
Introduction
In this chapter
This chapter covers the maintenance procedures for the Haz-Dust IV.
This chapter contains the following topics.
Checking the Calibration Span. 5-2
Checking the Flow Rate. 5-5
Adjusting the Flow Rate. 5-7
Battery Maintenance. 5-8
Cleaning the Sensor Optics. 5-12
Chapter 5
Maintenance
Topic See Page
5 -
1
Page 62
Checking the Calibration Span
Introduction
When to check
the calibration
span
The Calibration Reference is a light scattering device that provides a constant
value (termed a “k” factor).
The Calibration Reference should be used as a reference to check factory
calibration span of the Haz-Dust IV.
The calibration span should be checked under the following conditions:
• Once a month with normal usage.
• If the Haz-Dust IV is dropped or otherwise damaged.
• The first time you use the unit to double check the factory calibration.
Note
: The Haz-Dust IV should be sent into EDC annually for recalibration.
Conditions
The following conditions must be met before checking the calibration span.
Condition... For further information
see page...
The Sensor Optics must be clean. 5-11
The Environment must be clean. --The Battery must be fully charged. 5-7
Figure 5-1. Diagram of the Haz-Dust IV showing the locating pin on the calibration
reference.
Continued on next page
5 -
2
Page 63
Checking the Calibration Span, Continued
Checking
Calibration
Span
Follow the steps in the table below to check the Calibration Span of the HazDust IV.
Note:
Failure to follow this procedure in its entirety may cause an incorrect
“k” value reading.
Step Action
1 Insert the Thoracic sampling inlet into the sensor head of the Haz-
Dust IV.
2 Attach the filter cassette to the sensor of the Haz-Dust IV.
3 Attach the air intake hose to the filter cassette.
4 Put the Haz-Dust IV into Respirable mode using the steps below.
4-1
4-2
4-3
4-4
4-5
Step Action
Select Special Functions from the Main Menu.
Select System Options.
Select Extended Options.
Select Size Select.
Select Respirable.
Result:
The Main Menu is displayed and the Haz-
Dust IV is in Respirable mode.
5 Activate the internal pump using the steps in the table below.
5-1
5-2
5-3
5-4
5-5
5-6
Step Action
Select Sample/Record from the Main Menu.
Select 1 Second.
Select Overwrite.
Select Yes.
Select No.
Select Sample/Rec and allow the Haz-Dust IV to
run for at least 2 minutes to stabilize.
Result:
5-7
Press ENTER after at least two minutes to stop the
The internal sampling pump is activated.
sampling process.
Continued on next page
5 -
3
Page 64
Checking the Calibration Span, Continued
6 Perform the Auto-Zero process using the steps in the table below.
6-1 Insert the zeroing filter into the Thoracic sampling inlet.
6-2
6-3
6-4
6-5
6-6
7 Remove the Thoracic sampling inlet from the sensor head.
8 Disconnect the air intake tubing.
9 Insert the calibration reference into the sensor head (see diagram
10 Activate the internal sampling pump again by repeating the
11 Observe the printed “k” value on the calibration reference.
The numbers agree
The two numbers
Step Action
Select Special Functions from the Main Menu.
Select System Options.
Select Extended Options.
Select Auto-Zero.Result: The Auto-Zeroing screen appears briefly.
Select Auto-Zero.
Results:
• The Auto-Zeroing screen appears during the auto-
• The Main Menu is displayed when the Auto-Zero
5-1 on page 5-2).
Note:
Be sure the locating pin on the calibration reference slides
into the locating hole on the sensor head.
process described in step number five on page 5-3. Skip step
number 5-7 and leave the sampling pump running.
Note:
The printed “k” value should match the concentration value
shown on the Haz-Dust IV LCD to within +
Note: If the CS-103 is purchased as an after market accessory or
from SKC, Inc., then the user must assign a “k” value.
IF THEN
within +
do not agree within
+
10%.
10%
zero process.
process is complete.
The Haz-Dust IV has passed the span
check test.
1. Repeat the process to rule out error,
2. Call EDC technical support or
10%.
then
return the Haz-Dust IV for
recalibration.
5 -
4
Page 65
Checking the Flow Rate
Introduction
Checking the
flow rate
It is good technique to check the flow rate every time a new gravimetric filter
is used for sampling.
Use the steps in the table below to check the flow rate.
Notes:
• If sampling Thoracic or Inhalable particulates make sure the Thoracic
• If sampling Respirable particulates make sure the Respirable sampling
sampling inlet is attached to the sensor head.
inlet is attached to the sensor head.
Step Action
1 Attach your airflow calibrator to the Haz-Dust IV using the table
below.
Thoracic or
Respirable
If sampling... Then...
Inhalable
Particulates
Particulates
1. Attach one end of the calibration airflow
tubing to the Thoracic sampling inlet.
2. Connect the other end of the calibration
airflow tubing to your airflow calibrator.
1. Insert GS-Cyclone into cover of
calibration chamber. Screw cover on
tight.
2. Attach airflow calibrator to 90
fitting. Attach Haz-Dust IV sensor to
tygon tubing. See figure 5.2a. Consult
calibration chamber instructions, p/n
CH-103, for further detail.
° nylon
Figure 5-2a. Haz-Dust IV sensor connected to CH-103 calibration chamber.
Continued on next page
5 -
5
Page 66
Checking the Flow Rate, Continued
2 Activate the internal sampling pump using the steps below.
1
2
3
4
5
6
3 Observe the flow rate on your air flow calibrator.
The flow rate is 2.75 LPM. The flow rate is properly
The flow rate is not 2.75
Using the Thoracic inlet
The flow rate is not 2.0
Using the Inhalable inlet
The Flow rate is not 2.0
Step Action
Select Sample/Record from the Main Menu
Select 1 Second.
Select Overwrite.
Select Yes.
Select No.
Select Sample/Rec and allow the Haz-Dust IV to
run for at least two minutes to stabilize.
If... Then...
LPM.
NOTE: The GS-3 Cyclone is an optional accessory for the HazDust IV. Its optimal flow rate is 2.75 LPM. The GS-1 Cyclone may
be used, however, its optimal flow rate of 2.0 LPM to a 4µm
respirable cut point.
and the flow rate is 2.0
LPM.
LPM.
the flow rate is 2.0 LPM.
LPM.
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.
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.
The flow rate is properly
calibrated. Detach the airflow
calibrator tubing and continue
with the “Selecting the Particle
Size” process.
The rate must be adjusted. See
page 5-7 for instructions.
5 -
6
Page 67
Adjusting the Flow Rate
Introduction
Adjusting the
flow rate
The flow rate must be adjusted when it does not equal:
•
2.75 LPM for 25-mm cyclone Respirable Inlet
•
2.0 LPM for Thoracic Inlet
•
2.0 LPM for Inhalable Inlet
Follow the steps in the table below to adjust the flow rate.
1 Locate the adjustment screw on the bottom of the Haz-Dust IV
next to the charging jack.
2 Use the flow adjustment screw to adjust the flow rate.
Decrease the flow rate Counterclockwise Increase the flow rate Clockwise
3 Record the Flow Rate.
4 Detach the airflow calibrator and calibration airflow tubing.
5 Continue with the “Selecting the Particle Size” process.
To... Turn the adjustment screw...
5 -
7
Page 68
Battery Maintenance
Introduction
Checking the
Battery
The battery pack is a 6.0 V NiMH rechargeable battery that can hold a charge
for up to 8 hours. It is important to check the battery periodically and
recharge when necessary.
The battery status can be checked using the menu options on the Haz-Dust
IV. Use the following menu options to check the battery.
Step Action
1
2
3
4
Select Special Functions from the Main Menu.
Select Systems Options.
Select Extended Options.
Select Battery Status.
Result:
the unit’s battery in VDC.
5
6.2 VDC or higher The battery is fully charged.
6.2 VDC or lower The battery must be recharged.
The Battery Level Screen displays the charging level of
If the charge level is... Then...
See instructions on page 5-9.
Continued on next page
5 -
8
Page 69
Battery Maintenance, Continued
Recharging the
battery
Follow the steps in the table below to recharge the battery using the supplied
charger.
Note:
If the battery is low the sampling process will terminate and the low
battery screen will display.
Step Action
1 Plug the battery charger into an electrical outlet.
2 Plug the battery charger into the battery charge jack on the back of
the battery plate.
Results:
• The battery charge begins.
• If the unit is off there will be no visible indication of the
Note:
be powered off when charging. If battery does not hold a charge
for 8 hours, charge time can be increased to 24 hours. Typical
lifetime of battery is 18 to 24 months. Batteries are warranty for
90 days upon receipt of shipment.
charge.
Recharging time is approximately 16 hours, and unit must
CAUTION:Do not charge in a hazardous environment. Use only
the EDC approved charger designed for the Haz-Dust IV.
Continued on next page
5 -
9
Page 70
Battery Maintenance, Continued
Removing and
replacing the
battery pack
Removing the
battery
The battery pack can be removed and replaced whenever necessary.
Note:
The battery of the Haz-Dust IV can be recharged while either inside or
outside of the instrument.
Follow the steps in the table below to remove the battery pack.
Step Action
1 Remove the two thumbscrews from the back plate of the Haz-Dust
IV.
Note:
Screws are located under the waist belt.
2 Slide the battery plate out of the unit.
3 Unplug the nylon connector from its mating plug.
Note: The battery pack is attached to the battery plate with a
retaining bracket. The battery is not removable from the plate.
Replacement batteries will come mounted on battery plates for
easy replacement.
Continued on next page
5 -
10
Page 71
Battery Maintenance, Continued
Reinstalling the
battery
Follow the steps in the table below to reinstall the battery pack.
Step Action
2 Plug the nylon connector into its mating plug.
3 Slide the battery in the appropriate orientation into the battery
cavity of the unit.
4 Insert the two thumbscrews to secure the battery pack in place.
5 -
12
Page 72
Cleaning the Sensor Optics
Introduction
Cleaning the
Sensor Optics
It is important to keep the sensor optics of the Haz-Dust IV clean to ensure
the integrity of the optical sensor.
The sensor optics need to be checked every 48 hours when used in a
2 to 3 mg/m
3
T.W.A. environment, and on a weekly or monthly basis in less
contaminated locations.
Follow the steps in the table below to clean the sensor optics.
Figure 5-2. Picture of the cleaning kit.
Continued on next page
5 -
12
Page 73
Cleaning the Sensor Optics, Continued
Step Action
1 Remove the three thumbscrews from the sensor cover.
2 Remove the sensor cover.
3 Remove the sampling head from the bottom of the sensor.
4 Inspect the sensor cover for residual dust.
Note:
Use one of the following methods to clean the surface.
• Blow the dust away with low pressure air, or,
• Wipe with a soft lint-free cloth.
5 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 internals of the
Haz-Dust IV.
6 Replace the sampling head.
7 Replace the sensor cover.
8 Tighten the three thumbscrews snugly into place.
Continued on next page
5 -
13
Page 74
Cleaning the Sensor Optics, Continued
Figure 5-3. Removing the sensor cover.
Figure 5-4. Dust being removed with low
pressure air.
Figure 5-5. Isopropyl alcohol being applied
to cotton swab.
Figure 5-6. Sensor head being cleaned with
cotton swab.
The tables below show the particle size cut point for Thoracic, Inhalable, and
Respirable dust particles.
Respirable
Inhalable
Inhalable
Particulate Mass
(IPM) (%)
Particle
Aerodynamic
Diameter (µm)
0 100
1 97
2 91
3 74
4 50
5 30
6 17
7 9
8 5
10 1
Thoracic
Particle
Aerodynamic
Diameter (µm)
0 100
2 94
4 89
6 80.5
8 67
10 50*
12 35
14 23
16 15
18 9.5
20 6
25 2
* Same cut point as EPA PM-10.
Respirable
Particulate Mass
(RPM) (%)
Thoracic
Particulate Mass
(TPM) (%)
B -
1
Page 80
Appendix C
Glossary of Terms
Term Definition/Standard
µm
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
TWA Time Weighted Average. Average particulate
Micron, 1/1000 of a meter.
Particulates having a 50% cut point at 100µm.
Particulates having a 50% cut point at 3.5µm.
concentration over a 15 minute period.
Particulates having a 50% cut point at 10µm.
concentration over a period of time.
C -
1
Page 81
Overview
Introduction
Accessory and
part number
Accessories may be purchased separately for the Haz-Dust IV.
Use the part number from the table below to order Haz-Dust IV accessories.
110 V BC-104-110
220 V BC-104-220
37 mm Opaque Filter Cassette Blanks CAS-103
5.0 µm PVC 37 mm Filter
Battery Pack BP-104
Calibration Reference CS-103
Calibration Chamber CH-103
Cleaning Kit KK-101
Computer Interface Cable CC-102
Durable Carrying Case DCC-104
Flow Meter FM-103
HD-1003 Media CD-Rom Includes: Computer
Software and Instructions Manual
IOM Sensor Inlet IS-104
Respirable Dust Cyclone Inlet RS-103
Thoracic Sample Inlet TS-103
Tripod Stand TP-104
Zeroing Filter ZF-102
Appendix D
Haz-Dust IV Accessories
Accessory Part Number
225-806
CD-104
D -
1
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