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EVM-7 Environmental Monitor
2-in-1 Particulate and Gas Concentration Measurement
EVM-7 Key Features:
- Simultaneous particulate mass and gas concentration
measurement
- Twist and click impactor for PM2.5, PM4, PM10,
or TSP* measurement without
disassembly and external cyclones
- 90-degree light scattering photometer for
mass particle concentration measurement and real-time display
- Built-in compensating sample pump for
simultaneous gravimetric sampling on a 25 or 37-mm filter
cassette inside the instrument.
- Smart auto-recognized toxic gas sensors
- High-performance 10.6 eV PID for VOCs
* Within
the instrument’s measurement range
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Monitor multiple air quality hazards/parameters using one instrument with
the Quest® EVM-7 environmental monitor. EVM-7 simultaneously measures
particulates, volatile organic compounds (VOCs), toxic gas, carbon
dioxide, relative humidity, temperature, and air velocity (with accessory
probe).
Two instruments in one means lower cost of ownership and elimination
of multiple instruments.
Additional EVM-7 Features:
- Time history datalogging
- Factory calibrated relative to ISO 12103-1, A2 (Arizona Road Dust)
- Site correction factors for particulates (user supplied)
- Auto run and security code protection for unattended monitoring
- Carbon dioxide trending algorithms for calculation of room air exchange rates (with QuestSuite Pro II Software)
- Real-time measurement with once-per-second update rate
- Trend graphing for all parameters
- Menu-driven user interface with 10 pushbuttons/4 softkeys
- User selectable digital output for external functions
- Displayed measurements of Level, Minimum, Maximum, Average, STEL, and TWA
- Displays in 6 languages
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Easy Access to gravimetric
sample filter cassette |
Removable sensor bar for
easy access to sensors |
EVM-7 Applications
- Worksite monitoring
- Industrial hygiene surveys
- Military site evaluation
- Aircraft and train environment sampling
- Construction/mining site monitoring
- Engineering studies
- Industrial fenceline monitoring
- Remediation sampling
- IAQ walk-through and stationary studies
- Air quality assessment
- VOC screening and monitoring
- Regulatory compliance
Additional EVM Models
EVM-4 and EVM-3 feature the durability,
quality, and overall design of the EVM-7.
EVM-4 Comprehensive IAQ Analysis
Monitors and logs:
- Carbon monoxide
- Relative humidity
- Temperature
- Carbon dioxide (room air exchange rates calculated in QuestSuite Pro II Software)
- Optional sensor accessories: AirProbe-10 velocity probe, PID, particulates, replace CO sensor with one of 8 other toxic gas sensors
EVM-3 Real-time Direct-reading Particulate Monitor
Measures and logs:
- Particulate mass concentration (PM2.5, PM4, PM10, or TSP*)
- Temperature
- Relative humidity
- Optional sensor accessories: AirProbe-10 velocity probe, CO or select from 8 other toxic gas sensors, CO2, PID
Performance Profile
| Method |
Base Units |
Display Res. |
Display Range |
Accuracy/Repeatability |
| Particulates |
| Light-scattering Photometer |
mg/m3 |
0.001 |
0.000-199.9 |
± 15% (rel ARD†) |
| Particulates Size Range |
µm |
N/A |
0.1-10 |
** |
| VOCs |
| 10.6 eV PID |
ppm |
0.01 |
0.00-2000 |
± 5%/2% (rel to Isobutylene) at calibration level |
| Carbon Dioxide |
| NDIR |
ppm |
1 |
0-20,000 |
± 2% of signal, ± 50 ppm between 0-2500 |
| Toxic Gas (Electrochemical Sensors) |
| Carbon Monoxide |
ppm |
1 |
0-1000 |
± 5%/2% of signal |
| Chlorine |
ppm |
0.1 |
0.0-20 |
± 5%/2% of signal |
| Ethylene Oxide |
ppm |
0.1 |
0.0-20 |
± 5%/2% of signal |
| Hydrogen Cyanide |
ppm |
0.1 |
0.0-50 |
± 5%/2% of signal |
| Hydrogen Sulfide |
ppm |
1 |
0-500 |
± 5%/2% of signal |
| Nitric Oxide |
ppm |
0.1 |
0.0-100 |
± 5%/2% of signal |
| Nitrogen Dioxide |
ppm |
0.1 |
0.0-50 |
± 5%/2% of signal |
| Oxygen |
% |
0.1 |
0.0-30 |
± 5%/2% of signal |
| Sulfur Dioxide |
ppm |
0.1 |
0.0-50 |
± 5%/2% of signal |
| Temperature |
| Junction Diode |
deg C |
0.1 |
-10.0- 60.0 |
± 1.1 deg C |
deg F |
0.1 |
14.0- 140.0 |
± 2 deg F |
| Relative Humidity |
| Capacitive |
% humidity |
0.1 |
0.0-100 |
± 5% RH of signal between 10 - 90% |
| Air Velocity |
| Omni-directional Heated Thermistor Windprobe |
m/sec |
0.1 |
0.0-20 |
± 0.12 m/s + 4.5% of signal |
ft/min |
1 |
0-3940 |
± 23.6 ft/min + 4.5% of signal |
| General |
| Size Fractions |
PM2.5, PM4, PM10, or TSP** |
| Sample Pump Flow Rate |
1.7 L/min |
| Power/Run Time |
Rechargeable Li-Ion battery pack provides minimum of 8 hrs of continuous operation |
| Weight |
2.9 lb (1.3 kg) |
| Standards |
CE marked and RoHS compliant |
| † |
Arizona Road Dust (ARD) |
| ** |
The photometer can detect particles up to 100 µm; however, accuracy
is reduced for sizes greater than 10 µm. |
Ordering information
| EVM Monitors |
Cat. No. |
| EVM-7 IAQ/Dust Monitor with 5 Sensors: VOCs, CO2, Dust, Temperature,
and Humidity includes datalogging monitor with sensors for VOCs (PID), CO2, particulates, temperature, and humidity (with air probe input connector), two 37-mm filter cassettes (for pump protection), 12-V DC universal power supply, USB cable, silicone dielectric grease, PID cleaning kit, 10-pk pump protection filters, dust zero calibration assembly, toxic gas calibration adapter, and storage case.
Purchase Air Probe-10 Air Velocity Probe separately. | |
| EVM-7 CO/IAQ/Dust Monitor with 6 Sensors: VOCs, CO2, CO, Dust,
Temperature, and Humidity includes datalogging monitor with sensors for VOCs (PID), CO2, CO, particulates, temperature, and humidity (with air probe input connector), two 37-mm filter cassettes (for pump protection), 12-V DC universal power supply, USB cable, silicone dielectric grease, PID cleaning kit, 10-pk pump protection filters, dust zero calibration assembly, toxic gas calibration adapter, and storage case.
Purchase Air Probe-10 Air Velocity Probe separately. | |
| EVM-4 IAQ Monitor with 3 Sensors: CO2, Temperature, and Humidity includes datalogging monitor with sensors for CO2, temperature, and humidity (with air probe input connector), 12-V DC universal power supply, toxic gas calibration adapter, USB cable, and storage case.
Purchase Air Probe-10 Air Velocity Probe separately. | |
| EVM-4 CO/IAQ Monitor with 4 Sensors: CO2,
CO, Temperature, and Humidity includes datalogging monitor with
sensors for CO2, CO, temperature, and humidity (with air probe
input connector), 12-V DC universal power supply, toxic gas calibration adapter,
USB cable, and storage case.
Purchase Air Probe-10 Air Velocity Probe separately. |
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| EVM-3 Dust Monitor with 3 Sensors: Dust, Temperature,
and Humidity includes datalogging monitor with sensors for particulates,
temperature, and humidity (with air probe input connector), two 37-mm filter
cassettes (for pump protection), 12-V DC universal power supply, USB cable,
silicone dielectric grease, 10-pk pump protection filters, dust zero calibration
assembly, and storage case.
Purchase Air Probe-10 Air Velocity Probe separately. |
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| Dummy Sensor, seals empty sensor socket | |
| Carbon Monoxide Smart Sensor | |
| Chlorine Smart Sensor |
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| Ethylene Oxide Smart Sensor |
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| Hydrogen Cyanide Smart Sensor |
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| Hydrogen Sulfide Smart Sensor |
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| Nitric Oxide Smart Sensor | |
| Nitrogen Dioxide Smart Sensor | |
| Oxygen Smart Sensor |
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| Sulfur Dioxide Smart Sensor |
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| AirProbe-10 Air Velocity Kit includes
AirProbe-10, mounting bracket, adapter cable, AC charger, and carry
case |
120 V |
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220 V |
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Additional accessories are available. Contact SKC
EVM Monitor Spec. Sheet
(PDF)
This page was last modified May 5, 2009
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