Particulate - 3M Nederland
3M Occupational Health & Environmental Safety Division
EVM Series Environmental Monitoring
Simultaneous
Particulate
and Gas
Concentration Measurement
Evolutionary Dual-Analysis Design
The 3M™ EVM Series monitors both particulates and air quality
in one compact instrument. This durable, easy-to-use model
provides simultaneous worksite area monitoring of:
• Particulate mass concentrations (0.1-10 um) •Select toxic gases*
• Select volatile organic compounds*
•Carbon dioxide
• Relative humidity
•Air velocity (with purchase
of optional accessory)
• Temperature
* Refer to Sensor Specifications chart on page 5 for details regarding toxic sensor selection.
Visit www.questtechnologies.com for details regarding volatile organic compounds and
toxic gas sensor selection.
From healthcare and manufacturing to construction and military
applications, the EVM Series provides a lower cost of ownership
by combining three instruments into one. Its user-friendly
interface, proprietary dial-in rotary impactor, and advanced
reporting and analysis features make it a particulate and IAQ
area monitoring instrument of choice for industrial hygienists
and safety professionals worldwide.
EVM-7: One Solution,
Multiple Measurements
Intuitive, User-Friendly Controls
Its large display and buttons, simple screens,
straightforward commands and robust software
solutions put all of the EVM-7’s capabilities right
at your fingertips.
Simultaneous Measurement of
Particulate and Gas Concentrations
Reduces the need for multiple instruments and lowers
the cost of ownership.
Dial-in Rotary Impactor
Twist and click selection of particulate settings:
PM2.5, PM4, PM10 or TSP.*
Eliminates disassembly and reduces the need for
external cyclones.
90° Light Scattering Photometer
Provides real-time measurement of particulates.
Built-in Sampling Pump for Gravimetric Analysis
Allows user to insert a 25 or 37 mm cassette to
capture particulates for laboratory testing.
Durable Design For
Real-World Applications
The EVM-7 is a durable yet lightweight instrument designed for
real-world use. It can be tripod mounted or hand-held, making
it well suited for a variety of area monitoring applications,
including:
• Industrial hygiene area surveys
• LEED building clearance screening
• Construction / mining site monitoring
*Within the instrument’s measurement range
• Engineering studies
• Industrial fence line monitoring
• IAQ walk through and stationary studies
• Air quality assessment
• VOC screening and monitoring
Technical Features and Advanced Monitoring Capabilities
From basic to advanced monitoring, the EVM-7 has the features needed for many
air quality and particulate concentration assessments. Here are just a few highlights:
•Factory calibrated to ISO 12103-1, A2 (Arizona Road Dust)
• Real-time measurement with once per second update rate
• Site correction factors for various particulates (user supplied)
• Time history data logging
• Auto run and security code protection for unattended sessions
• Trend graphing for all parameters
• Carbon dioxide (CO2) trending algorithms for calculation
of room air exchange rates (with purchase of QuestSuite™
Professional II software)
• Standard Quest menu-driven user interface with
10 pushbuttons / 4 softkeys
• Dew point readings for analysis of airborne moisture percentage
• Smart sensors which are auto-detectable at power on
Removal of the back cover allows for convenient access
and customization of gravimetric filter cassette for
sample collection.
• User selectable digital and analog output for external functions
• Displayed measurements of Level, Minimum, Maximum,
Average, Short-Term Exposure Level (STEL) and
Time Weighted Average (TWA)
Removable sensor bar provides easy access to toxic
electrochemical sensors.
Easy-to-Read Measurement Screens
Particulate Concentrations Screen
Trend Screen
Composite Screeen
Displays user-adjustable impactor setting
and six simultaneous measurements.
Provides synopsis of logged measurement
values in a graphical format. Available for
each parameter.
Displays available parameters for a snapshot overview of measurement values.
EVM-3 and EVM-4 Models
Ideal for organizations that do not require the full
functionality of the EVM-7
EVM-3
EVM-4
Specializes in real-time direct reading of particulate
concentrations. This tri-sensor instrument utilizes the
built-in sampling pump and dial-in impactors for
real-time mass concentration readings.
Multi-sensor instrument designed for indoor air quality
investigations. Simultaneously track, log and monitor
multiple indoor air quality parameters, including room
air exchange rates and dew point.
EVM-3 measures:
EVM-4 measures:
• Particulates (mass concentration)
• Toxic Gas (choose from nine sensors)
• Temperature
• Relative Humidity
• Relative Humidity
• Carbon Dioxide
• Temperature
Sensor Specifications
BASE UNITS
DISPLAY
RESOLUTION
DISPLAY
RANGE
Accuracy
Repeatability
mg / m3
0.001
0.000 - 199.9
+/-15% (rel ARD*)
ug / m3
1
0 - 20,000
+/-15% (rel ARD*)
µm
N/A
0.1 - 10
**
Low Sensitivity PID
select
ppm or mg / m 3
0.1
0.0 - 2,000
+/-5% / 2%***
at calibration level
High Sensitivity PID
select
ppm or ug / m 3
1
0 - 50,000
+/-5% / 2%***
at calibration level
ppm
1
0 - 20,000
+/-2% of signal
+/-50 ppm between
0-2,500
CO - Carbon Monoxide Sensor
ppm
1
0 - 1,000
+/-5% / 2%
of signal
Cl2 - Chlorine Sensor
ppm
0.1
0.0 - 20
+/-5% / 2%
of signal
EtO - Ethylene Oxide Sensor
ppm
0.1
0.0 - 20
+/-5% / 2%
of signal
HCN - Hydrogen Cyanide Sensor
ppm
0.1
0.0 - 50
+/-5% / 2%
of signal
H2 S - Hydrogen Sulfide Sensor
ppm
1
0 - 500
+/-5% / 2%
of signal
NO - Nitric Oxide Sensor
ppm
0.1
0.0 - 100
+/-5% / 2%
of signal
NO2 - Nitrogen Dioxide Sensor
ppm
0.1
0.0 - 50
+/-5% / 2%
of signal
O2 - Oxygen Sensor
%
0.1
0.0 - 30
+/-5% / 2%
of signal
O3 - Ozone Sensor
ppm
0.01
0 - 1.0
+/-10% / 2% of
signal at calibration level
SO2 - Sulfur Dioxide Sensor
ppm
0.1
0.0 - 50
+/-5% / 2%
of signal
deg C
0.1
0.0 - 60.0
+/- 1.1 deg C
deg F
0.1
32.0 - 140
+/- 2 deg F
% humidity
0.1
0.0 - 100
+/-5% RH* of signal
between 10%-90%
meter/sec
0.1
0.0 - 20
+/-0.12 m/s +
4.5% of signal
feet/min
1
0 - 3940
+/-23.6 ft/min +
4.5% of signal
METHOD
ParticulateS:
90° Light Scattering / Integrating Photometer
Particulates Size Range
VOC: 10.6eV Photoionization Detector
CO2 :
NDIR (Non-Dispersive Infrared)
Toxic Electrochemical Sensor:
Temperature:
Junction Diode
Relative Humidity:
Capacitive
Air Velocity:
Omni-directional Heated Thermistor Windprobe
* ARD - Arizona Road Dust, RH - Relative Humidity
** The photometer can detect particulates up to 100 µm; however, accuracy is reduced for sizes greater than 10 µm.
***Relative Isobutylene
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