HAZ-DUST HD-1100 User manual

INSTRUCTIONS
FOR HAZ-DUST
RESPIRATORY PARTICULATE
AIR MONITOR
MODEL HD-1100
Environmental Devices Corporation
4 Wilder Drive Bldg. 15 ●Plaistow, NH 03865
Tel: [phone] ●Fax: [phone]
E-mail: [email protected]
Website: www.hazdust.com
DOC# HD110503

Table of Contents
Page Number
WARRANTY 2
INTRODUCTION 3
FEATURES 4
A. RANGE SWITCH
B. ANALOG OUTPUT
OPERATION 5-6
A. START-UP
B. CHARGING THE UNIT
C. ZEROING
D. MONITORING
MAINTENANCE 7-8
A. CLEANING THE OPTICS
B. BATTERY REPLACEMENT
ACCESSORIES 9
SPECIFICATIONS 10
SERVICE INFORMATION 11
1

WARRANTY
Environmental Devices Corporation 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.
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). Environmental Devices Corporation must be
notified of all returning warranty repair products, either in writing
or by telephone, along with a description of product malfunction.
Shipping and insurance cost will be prepaid by the purchaser.
Environmental Devices Corporation makes no other express
warranty and disclaims any implied warranty and disclaims any
implied warranty of fitness or merchantability.
2

INTRODUCTION
HAZ-DUST is a portable direct reading particulate monitor that uses infrared
electromagnetic radiation to sense airborne particles. The sensing method is
traditionally referred to as near forward light scattering. The principle of near
forward light scattering utilizes a light source emitter and a photodetector
positioned at a 90-degree angle. As particles transverse the sensing volume, they
scatter IR light at a forward angle of 45-90 degrees. The amount of scattered light
is directly proportional to the aerosol concentration.
The mass concentration readout is expressed in milligrams per cubic meter
(mg/m³). The calibration of the instrument can be changed to compensate for any
changes in particle composition and distribution.
HAZ-DUST is calibrated with standard test dust. The particle size range is from
0.1 to 50um this represents the EPA PM10 criteria and thoracic region for airborne
particles as defined by the ACGIH (American Conference of Government
Industrial Hygienists) and the NIOSH (National Institute of Occupational Health
and Safety) Reference method #600.
This instrument can be used for all Industrial and environmental particulate air
monitoring applications. In addition the unit is valuable for aiding in the
compliance to OSHA (Occupational Safety and Health Administration) Air
Contaminant Exposure Standards. OSHA has prepared an 86 page booklet titled
“Air Contaminants Permissible Exposure Limits” OSHA publication #3112. Free
copies may be obtained by sending a self-addressed envelope to:
OSHA Publications Office
Room N-3101
U.S. Dept. of Labor
Washington, DC 20210
3

FEATURES
A. RANGE SWITCH
Hi range - This range provides the most sensitivity. The range span is from 0-20
mg/m³.
Lo range - This range setting is recommended for monitoring in areas that generate
more than 10mg/m³ of dust. The range span is from 0-200 mg/m³.
B. ANALOG OUTPUT
Although the DL-103 Data Logger is recommended, the 0-2v output can transfer
its linear analog voltage to any data logging device that can accept an analog
signal. This output should be utilized if hard copy documentation is needed. 0-1v
corresponds to 0-100mg/m³. The HD-1100 will over range to 2volts or 200mg/m³.
4

OPERATION
A. Start up
To start measuring particle concentrations turn power switch to “on” and allow unit
to warm-up for a few minutes. Set range switch to “0-20mg/m3” position.
B. Battery Status and Charging.
The Haz-Dust HD-1100 is powered by NiMH batteries, which have a variable
lifetime that can range from 500-1000 hours. The batteries need to be replaced
when they do not hold a charge for 8 hours. To check to see if batteries need
charging depress “Bat” on power switch and observe reading on display. Reading
should be greater than 6.0 when range switch is in the high position to use
equipment.
NOTE: Be sure to set the switch to the “off” position when you are finished
checking the battery status batteries will discharge.
When charging batteries leave charger connected for 10-12 hours with unit “off”.
NOTE: Unit should not be connected to charger when off for more than 12 hours.
C. ZEROING
For this procedure it is very important to perform the zero adjustment in a clean
environment with respect to the environment being monitored. It is recommended
to purchase the optional accessory ZA-111 is available for zeroing monitor.
To zero the unit, turn the zero adjustment screw with the provided trim stick, so
that the display reads 0.00+/-0.02mg/m³. This process requires patience. It is
recommended to turn the zero adjustment in very small increments and wait for
one minute for readings to stabilize.
After the unit has been zeroed, the range switch can be set to the “0-200mg/m3”
position. Now you are ready to start monitoring for airborne particulates.
5

OPERATION, Continued
D. MONITORING
When monitoring hold unit in the palm of your hand, or place on the optional
tripod accessory1, so that the display is facing in the up position. Take precaution
in monitoring in areas that produce high reflective light (i.e., directly next to arc
welding, flash explosions, reflected sun light etc.). When necessary position the
unit so that the air intake is opposite bright light. Bright fluctuation may produce
erroneous data. The unit will provide readings in milligrams per cubic meter
(mg/m³) and is calibrated to against a standard test dust using NIOSH method
#600.
LCD Display
with readouts
in mg/m³
(milligrams per
cubic meter).
Zero Adjustment
On/Off and
battery status
switch.
Range Switch:
Push up for 0-
20 read out and
p
ush down for
0-200 readout.
6
1Tripod accessory sold separately P/N TP-111.

MAINTENANCE
Annual factory re-calibration recommended.
Maintenance on the unit is minimal. Replacement of the battery pack and cleaning
of the sensing chamber are the most frequent procedures that must be performed.
An annual re-calibration is recommended.
Cleaning the instrument sensing chamber depends on the length of time and the
concentration of dust the unit has been exposed to. In general, if monitoring a
concentration of 1 mg/m³ for a period of 8 hours, cleaning should be performed
every 24 hours. It is always recommend checking the zero reading after cleaning.
Procedures for Cleaning
1. Remove optical light trap that is held in place by brass thumbnuts located on
the reverse side of the unit.
2. Observe optical block. Using the dust free air, blow off any residue dust
inside the optical light trap and on the optical block.
3. Clean windows with cotton swab rinsed in cleaning solution and allow air to
dry.
4. Replace optical light trap.
5. Re-zero Unit (see Zeroing instructions.)
7

Replacement Battery Pack for the HD-1100
Part Number BP-111
Figure 2A: Disconnect battery from
nylon connectors. NOTE: DO NOT
PULL ON WIRES.
Figure 2B: Reconnect battery from nylon
connectors. NOTE: DO NOT PULL ON
WIRES.
Figure 1: Remove six
screws
Instructions to replace battery pack
1. Remove optical cover from sensor.
2. Unscrew the screws on back of HD-1100 housing. See figure
1.
3. After screws are removed gently remove back cover to HD-
1100.
4. To remove the battery pack, disconnect the nylon connectors
and remove battery. See figure 2A.
5. Insert new battery pack and connect nylon connectors. See
figure 2B.
6. Replace back cover of housing and screw back together.
8

ACCESSORIES
Order Number Description
DL-103 Data Logger
BP-111 Replacement Battery Pack
BC-111 Battery Charger
TP-111 Tripod Mounting Stand
CS-111 Calibration Standard
AS-111 Analog Signal Cable
KK-101 Cleaning Kit
DA-101 Dust Free Air
ZA-111 Zeroing Accessory
9

SPECIFICATIONS
Sensing range: 0.01-200 mg/m³
Particle size range: 0.1-50um
Precision: +/-0.02mg/m³
Accuracy: +/-10%
Power: NiMH battery
Operating time: >8hrs (fully charged)
Charging time: 10-12 hours
Signal output: 0-2 volts
Operating temperature: 0-50 degrees Celsius
(32-120 degrees Fahrenheit)
Dimensions: 9” x 3” x 1.5”
Weight: 2 lb.
10

SERVICE INFORMATION
All service functions are performed at the factory by qualified service technicians.
Please call or write Environmental Devices before returning any products. Before
returning a unit for servicing a Return Authorization Number (RMA number) must
be issued by Environmental Devices.
Send all return products to:
Environmental Devices Corp.
4 Wilder Drive Bldg. 15
Plaistow, NH 03865 USA
Phone: [phone]
E-mail: [email protected]
Website: www.hazdust.com
For warranty returns please see section labeled Warranty.
11