USER MANUAL
Video Particle Counter with built-in Camera
Model VPC300
Additional User Manual Translations available at www.extech.com
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Introduction
Thank you for selecting the Extech Instruments Model VPC300 Particle Counter with Camera.
The VPC300 has a Color TFT LCD display, a 74MB internal data storage bank, a micro-SD memory
card slot for capturing images and video for viewing on a PC, and a built-in 320x240 pixel camera
for capturing stills/video of test locations. The VPC300 offers quick and accurate readings for
particle count, air temperature, most surface temperatures, and relative humidity. The VPC300
also offers a Dew Point and Wet Bulb temperature calculation geared for energy efficiency and
environmental protection applications. Supplied PC software allows the user to generate reports
based on records data, images, and video.
This device is shipped fully tested and calibrated and, with proper use, will provide years of
reliable service. Please visit our website (www.extech.com) to check for the latest version of this
User Guide, Product Updates, and Customer Support.
Features
2.8” TFT Color LCD display
Convenient keystroke menu structure for measurements, setup, and other programming
320 x 240 pixel built-in camera for still and video imaging
JPEG images and 3GP video
Meter’s internal memory 74MB.
Meter can store 5000 records (date, time, counts, humidity, temperature, sample
volumes) and 20 minutes of video to internal memory.
Micro-SD memory card slot (8GB maximum); card not included.
Selectable Test sample time, count data, and programmable delay
Simultaneously measure and display 6 channels of particle sizes (down to 0.3μm)
Air temperature and relative humidity
Dew point and Wet bulb temperature calculations
MIN/MAX/AVG/DIF record with date/time stamp
Auto power off
Language selection for English, French, German, and Spanish
Meter is shipped NIST calibrated with calibration certificate
Tripod mounting option
Includes universal AC adaptor/charger with a variety of plug options, USB cable, PC
software, tripod, Zero count filter, 7.4V Lithium-ion polymer rechargeable battery, and
protective case
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Meter Description
1. Isokinetic probe
2. Temperature and RH Sensor (note its protective cover that slides up and down)
3. Color TFT LCD
4. Compartment for USB interface port and AC Adaptor/Charger
5. Function F1, F2, F3 buttons
6. Control buttons: Page Up/Down, Enter, Run/Stop, and ESC
7. ON/OFF button
8. Battery and Micro-SD card compartment (SD card slot underneath battery)
9. Tripod mount
10. Camera lens
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Operation
Power ON-OFF
Press and hold the power button to switch the instrument ON or
OFF.
Important Notes
Note: Operating the particle counter with the isokinetic probe cap in
place will damage the pump and other internal components.
Note: Electrical noise, sensor leakage, or other interference may
cause the VPC300 to show incorrect particle count data.
Getting Started
When the meter powers ON, the Particle Counter icon is displayed at the center of the LCD and
the date, time, and battery status can be observed on the top row of the LCD. Three bottom row
options are also displayed and can be selected using the Function keys (F1, F2, and F3) as shown
below. These are explained in greater detail later in this user guide:
Memory (where data, images, and video are located)
System Setup Parameters
Help File
Symbol Glossary
Cumulative mode
Video Record start
Concentration mode
Video mode
Test is paused
Color coded particle scale (green is
low, yellow is moderate, and red is
high particle count)
CAM (Camera) mode
Alarm ON
Differential mode
Battery Status
Test is running
Particle Count Setup
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Sequence of Operation
To ensure that you measure the amount of particles accurately, perform this sequence of
operation.
1. Zero the particle count sensor
2. Setup your counter for proper operation. Sample time, mode, cycle, and interval.
3. Run your test cycles and evaluate the results.
Basic Operation
Press and hold the ON/OFF button for 3 to 5 seconds until the display illuminates to power on
the meter.
Press the enter button ( ) to get to setup mode.
Press F3 to enter settings mode.
Set each parameter to your preferred setting by pressing ENTER to enter each parameter. Then
press ENTER to enable editing of each parameter. Press ESC to exit parameter setup.
Sample Time: Length of time each test runs (3 to 60 seconds)
Start Delay: Duration of time from RUN to actual start of test. (3 to 100 seconds)
Channel Display: Particle sizes displayed during test.
Ambient Temp/RH: Allows the display of the air temp and %RH values
Sample Cycle: Number of test cycles to run (1 to 100)
Sample Mode: Cumulative, differential, concentration
Interval: Test cycle delay measured in seconds.
Level Indication: Particle level selection (highlighted on display)
Press ESC to return to testing screen
Press RUN/STOP to start the automated test sequence.
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Taking Measurements
After powering the meter, press the Enter ( ) button to access
the Particle Measurement screen. Then open the
temperature/RH sensor by sliding its protective cover
downward.
When measuring particle counts, these
icons correspond to the function keys (F1,F2,F3).
F1 is to enter Camera and video mode, F2 is to view your saved
data, and F3 is for Setup mode.
The display will show the particle count channels with readings,
air temperature (AT), Dew point temperature (DP), Wet bulb
temperature (WB), and Relative Humidity (%RH) as shown in
accompanying diagram.
Press the RUN/STOP button to start the air pump and the particle count measurement
process. When the programmed sampling time has elapsed, the particle measurement cycle
will automatically end and the measurement data will be automatically stored. To set the
sampling time, refer to the Particle Count SETUP MODE section. If desired, press the
RUN/STOP button and stop the session manually.
When measuring particle counts, these icons correspond to the function keys
(F1,F2,F3). F1 is to enter Camera and video mode, F2 is to view your saved data, and F3 is for
Setup mode.
Capturing Images
While measuring particle counts, press F1 to enter the camera mode. Press F1 to capture a
Still image. Then press F1 to Save the image or F3 to delete it. Press ESC to get back to exit
this mode.
Capturing Video
While measuring particle counts, press F1 to enter the camera mode. Press F3 to enter the
video mode. The LCD will show . Now press F2 to capure video and press
F2 again to stop the video capture. The video file will be automatically stored. The System
Setup mode section allows the user to store video to the meter’s internal memory or to an
installed Micro-SD card. Press ESC to exit this mode.
Particle Counter Setup Mode
When measuring, these display icons are visible. Press
F3 to enter the Setup mode. Use the up and down arrow keys to select
an option to edit and press ENTER ( ) to access the selection.
SAMPLE TIME (Test Cycle Time)
Select Sample Time. Press the Enter ( ) button to enter the option
and Press Enter again to activate the setting for editing. Use the arrow buttons to set the
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sampling time/gas volume (3 to 60 seconds). Use the Esc button to save and return to the
menu.
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START DELAY
The test start delay time is adjustable (3 to 100 seconds). From the Particle setup menu, use
the Up and Down arrows to select Start Delay. Press the Enter ( ) button to enter the option
and Press Enter again to activate the setting for editing. Use the arrow keys to select the
desire delay time. The test will not start until the programmed delay time has elapsed. Use
the Esc button to save the setting and to return to the menu.
CHANNEL DISPLAY
Select channels that are to be displayed. From the Particle setup menu, use the Up and Down
arrows to select Channel Display. Press the Enter ( ) button to enter the option. Use the
arrow keys to select the channel and press the Enter key to select or de-select the channel.
Use the Esc key to save the setting and to return to the menu.
AMBIENT TEMPERAURE / %RH
Enable or Disable the ambient temperature and relative humidity displays. From the Particle
setup menu, use the Up and Down arrows to select Ambient Temp/RH. Press the Enter ( )
button to enter the option. Use the arrow keys to select Enable or Disable and use the ESC
button to save and return to the menu.
SAMPLE CYCLE
Set the desired number of test cycles to run. From the Particle setup menu, use the Up and
Down arrows to select Sample Cycle. Press the Enter ( ) button to enter the option and
Press Enter again to activate the setting for editing. Use the arrow keys to select the number
of cycles to run the test (1 to 100). Press ESC to save setting and to return to the menu.
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SAMPLE MODE
Select desired mode ( Cumulative, Differential, or Concentration). From the Particle
setup menu, use the Up and Down arrows to select Sample Mode. Press the Enter ( ) button
to enter the option. Use the arrow buttons to select desired mode and then use ESC to save
and to return to the menu.
Cumulative Mode – measures all particles that are greater than or equal to the particle size
selected in the Sample Volume field.
Differential Mode – measures all particles that are greater than or equal to the particle size
selected in the Sample Volume field, but less than the next largest particle size.
Concentration Mode – used to take a quick sample of airborne particulates, performed
especially in areas where the particulate levels are unknown and may exceed the operating
levels of this counter.
INTERVAL (TIME BETWEEN REPEATED TEST CYCLES)
Set the time between tests for tests with more than one cycle (1 to 100 seconds). From the
Particle setup menu, use the Up and Down arrows to select Interval Time. Press the Enter ( )
button to enter the option and Press Enter again to activate the setting for editing. Use the
arrow buttons to set the desired interval time. Use the ESC button to save setting and to
return to the menu. Note: The INTERVAL setting is only for programming the time between
test cycles, not between individual measurements.
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LEVEL (ALARM LIMIT) INDICATION
Select the Alarm Limit (Level) of the corresponding particle size. When the selected particle
size is exceeded, the instrument alerts the user. From the Particle setup menu, use the Up and
Down arrows to select Level Indication. Press the Enter ( ) button to enter the option. Use
the arrow buttons to select the desired alarm limit and then press ESC to save setting and
return to the menu.
Memory Storage Browser
When the meter is switched ON, these LCD icons are
visible . Press F1 to enter the data memory
section. There are three options available in the memory mode,
Picture, Video, and Particle Logs.
Use the arrow buttons to select one and then press ENTER ( ) to
access the selection.
When browsing images, data, and video use the arrow buttons to
navigate, use the Enter button to select, and use the ESC or F3
button to return to the menu.
Press ESC again to exit to the power-on screen.
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System Setup Parameters
When the meter is switched ON, these LCD icons are visible . Click on the F2
key and the menu will appear. Detailed explanations are provided below for each parameter.
Use the Arrow keys to choose the desired parameter.
DATE/TIME Set the Date and Time. Press the Enter ( ) button to open the
selection for editing. Use the arrow keys to change a value, and use
the Enter button to go to the next item. Press the ESC button to save
the setting return to the Setup menu.
FONT COLOR Select the color for the Display font. Press the Enter ( ) button to
open the selection for editing. Use the arrow keys to select a color
and use the ESC button to save the setting and return to the Setup
menu.
LANGUAGE Select the desired language for menu text. Press the Enter ( )
button to open the selection for editing. Use the arrow keys to select
a language and use the ESC button to save the setting and return to
the Setup menu.
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BRIGHTNESS Adjust the display to the desired brightness level. Press the Enter
( ) button to open the selection for editing. Use the arrow keys to
select a level and use the ESC button to save the setting and return to
the Setup menu.
AUTO POWER OFF Select elapsed time value before meter switches OFF. Press the
Enter ( ) button to open the selection for editing. Use the arrow
keys to select the setting and use the ESC button to save the setting
and return to the Setup menu.
DISPLAY TIME-OUT Select display auto-off delay. Press the Enter ( ) button to open the
selection for editing. Use the arrow keys to select a setting and use
the ESC button to save the setting and return to the Setup menu.
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MEMORY STATUS Display the memory and the micro-SD card status. Press the Enter
( ) button to open the selection for editing. Use the arrow keys to
select ‘Device’ or ‘SD Card’ and then view the status for the selected
item. Use the ESC button to return to the Setup menu.
FACTORY DEFAULT Restore factory default settings. Press the Enter ( ) button to open
the selection for editing. Use the arrow keys to select YES or NO and
then use the ESC button to save the setting and return to the Setup
menu.
UNITS Select the desired unit of measure for temperature C or F. Press the
Enter ( ) button to open the selection for editing. Use the arrow
keys to select the Unit and use the ESC button to save the setting and
return to the Setup menu.
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Zero the Particle count Sensor
Particles must be purged (removed) from the sensor before and after each use in a high
sample count environment.
Zero the sensor:
1. Unscrew and remove the Isokinetic probe and attach the Zero count filter.
2. Turn on the meter and in the Setup mode,
a. Set the Sample mode to Cumulative.
b. Set the Channel Display to ensure all channels are selected.
c. Set Sample time to 60 seconds
d. Set Sample Cycle to 10
3. Start the meter
4. Allow the meter to run until all of the particle counts read zero. You may need to
run the meter multiple times to ensure that all channels read zero.
5. Turn off the meter.
6. Remove the Zero count filter and attach the Isokinetic probe.
Particle Count Table
Particle count readings, grouped by color, Green (good), Yellow (caution), and Red (hazard),
are shown for each channel.
Channel
Green
Yellow
Red
0.3um
0 to 100,000
100,001 to 250,000
250,001 to 500,000
0.5um
0 to 35,200
35,201 to 87,500
87,501 to 175,000
1.0um
0 to 8,320
8,321 to 20,800
20,801 to 41,600
2.5um
0 to 545
546 to 1,362
1,363 to 2,724
5.0um
0 to 193
194 to 483
484 to 966
10.0um
0 to 68
69 to 170
171 to 340
Note: This table is intended for reference use only
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Particle Counter Considerations
Particle pollution is a mixture of various components including smoke, dust, chemicals, mold,
and gases. Particle concentrations can affect our health and comfort levels. Evaluating the
quality of the air by determining the concentration and size of these particles can help to
determine if a problem exists. Locating the source of these various particles can help to
determine effective methods of reducing these and improving the Indoor Air Quality (IAQ).
One way to determine the source of air particulates in a room is to test the air outside of the
room under investigation. Determine the concentration and size of particulates at the air intake
to that room. Purge or Zero the particle counter and then measure the concentration and size
of particles in multiple areas of the room to be tested, to determine the effectiveness of the
incoming air filtration. The air temperature, relative humidity, and CO2 levels are also an
important consideration for IAQ as high humidity and lower temperatures can bring about mold
creation.
If a room is classified as an ISO clean room or clean zone, the counts of particle sizes for that
class cannot be exceeded when tested.
Refer to the ISO Clean Room Class chart (ISO 14644-1:1999) for values.
The VPC300 is equipped with a still/video camera to directly see the areas under test. Data,
images, and video can be stored on up to an 8GB micro-SD card (not included) or in the meter’s
internal 74MB memory.
The life of the meter can be maximized by testing only when necessary and securely storing the
instrument when it is not in use. Continuous use is not recommended and can shorten the life of
the instrument especially in dusty environments. Setting up a common sense maintenance
schedule and testing to the schedule will go a long way in lengthening the life of the instrument
sensor.
PC Interface and Supplied PC software
This meter has the capability to connect to and communicate with a PC. A USB cable is supplied
and connects to the jack on the meter’s left side compartment.
To install and use the software, please refer to the instructions provided on the supplied CDROM and/or the instructions provided in the HELP Utility within the software program.
Check the software download page of the website www.extech.com for the latest version of the
PC software and its operating system compatibility.
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Battery Charging and Replacement
When the battery icon appears drained on the LCD or if the meter will not switch ON, the
battery must be recharged using the supplied AC adaptor/charger. The charger plug connects to
the jack located on the meter’s left side compartment.
The battery compartment is located on the rear of the instrument.
The battery is a 7.4V Lithium-ion polymer rechargeable battery.
To access the meter’s battery for replacement:
1. On the rear of the meter, remove the Phillips head screw that secures the battery
compartment.
2. Open the compartment by carefully lifting the compartment cover.
3. Replace the battery with one of the same type (note that the Micro-SD card slot is
located underneath the battery as explained below).
4. Close the compartment and secure the compartment cover with the Phillips head screw
Battery Safety Reminders
o Please dispose of batteries responsibly; observe local, state, and national regulations.
o Never dispose of batteries in fire; batteries may explode or leak.
o Always install a new battery of the same type.
Micro-SD Card Slot (optional)
The micro-SD card slot is located inside the battery compartment underneath the battery.
Micro-SD cards up to 8GB can be inserted in the slot.
To access the SD memory card slot:
1. Turn off power to the meter and remove the AC adapter cable if connected.
2. Open the battery compartment as described in the battery replacement section.
3. Remove the battery.
4. Insert a micro-SD card (8GB max.) in the card slot underneath the battery by lifting up on
the metal card holder and placing the Micro SD card in the connector. The pins facing
towards the top of the meter. Close the metal holder.
5. Insert the battery and secure the compartment cover before powering on the meter.
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Specifications
Particle Counter
Channels Six channels: 0.3, 0.5, 1.0, 2.5, 5.0, 10μm
Flow Rate 0.1ft3/min (2.83L/min)
Counting Efficiency 50% at 0.3μm; 100% for particles > 0.45μm
Coincidence Limit (Coincidence Loss) 5% at 2,000,000 particles per ft3
Particle Count Modes Cumulative, Differential, and Concentration modes
Air Temperature and Relative Humidity Measurements
Air Temperature Range 32 to 122oF (0 to 50oC)
Dew Point/Wet Bulb Temperature Range 32 to 122oF (0 to 50oC)
Relative Humidity Range 0 to 100%RH
Air Temperature Accuracy ±0.9oF (0.5oC) 50 to 104oF (10oC to 40oC)
±1.8oF (1.0oC) all other ranges
Dew Point/Wet Bulb Temperature Accuracy ±0.9oF (0.5oC) 50 to 104oF (10oC to 40oC)
1.8oF (1.0oC) all other ranges
Relative Humidity Accuracy ±3%RH from 40 to 60%RH
±3.5%RH from 20 to 40%RH and from 60 to 80%RH
±5.0%RH from 0 to 20%RH and from 80 to 100%RH
General Specifications
Display 2.8” 320 x 240 pixel TFT Color LCD
Low battery indication Battery symbol appears on the LCD
Micro-SD Card Slot Accommodates up an 8GB card
Meter internal memory 5000 sample records; 74MB
Power supply Rechargeable 7.4V Lithium-ion polymer battery
Battery life Approx. 4 hours of continuous use
Battery charge time 2 hours approx. with AC adaptor/charger
Operating Temperature 32 to 122oF (0 to 50oC)
Operating/Storage Humidity 10 to 90% RH non-condensing
Storage Temperature 14 to 140oF (-10 to 60oC)
Dimensions 9.4 x 3.0 x 2.2” (240 x 75 x 57mm)
Weight 1.26 lbs. (570g)
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All rights reserved including the right of reproduction in whole or in part in any form
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