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EVM-7 Environmental Monitor
2 Instruments in 1 for Particulate and Gas Measurement
EVM Monitor
Spec. Sheet (PDF) EVM-7 Key Features:
- Simultaneously measures particulate and gas concentrations
- Reduces the need for multiple instruments
- Also measures VOCs (PID), toxic gas, carbon dioxide, relative humidity, temperature, and air velocity (with Air Probe-10 accessory)
- Dial-in rotary impactor
- Twist and click selection of PM2.5, PM4, PM10, or TSP* without
disassembly and external cyclones
- 90-degree light scattering photometer
- Mass concentration engine provides real-time particulate measurement and display
- Built-in compensating sample pump
- Simultaneous gravimetric sampling on a 25 or 37-mm filter internal cassette
- Smart auto-recognized toxic gas sensors
- Carbon dioxide trending algorithms for calculation of room air exchange rates
(with QuestSuite Pro II Software, see ordering information)
- Displays Level, Minimum, Maximum, Average, STEL, and TWA in 6 languages
- Trend graphing for all parameters
- Menu-driven user interface with 10 push buttons/4 softkeys
- Time history datalogging
- Specialized models available for IAQ analysis and particulate monitoring (within the instrument’s measurement range)
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) with PID, 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:
- 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
- Real-time measurement with once-per-second update rate
- User selectable digital output for external functions
 |
 |
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
Specialized EVM Models
EVM-4 and EVM-3 feature the durability, quality, and overall design of the
EVM-7, but provide a sensor configuration for specific applications.
- EVM-4 for Comprehensive IAQ Analysis Monitors and logs CO, RH, temperature, and CO2 (with QuestSuite Pro II Software). Optional sensor accessories are available for air velocity, VOCs, particulates, and an alternate toxic gas.
- EVM-3 Real-time Direct-reading Particulate Monitor Measures and logs particulate mass concentration (PM2.5, PM4, PM10, or TSP*), temperature, and RH. Optional sensor accessories are available for air velocity, CO2, VOCs, and CO or other toxic gas
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 and 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 and 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. |
QuestSuite Pro II System
Software
Expand data management and reporting capabilities
for NoisePro, SoundPro SE & DL, HavPro, and QUESTemp° 34/36
instruments with QuestSuite Pro II (QSPII) Software. Manage an entire
instrument inventory, including non-Quest instruments, from one easy-to-use
software application. Program QuestSuite Pro II Software to automatically
prompt when calibrations are due for inventory instruments. QuestSuite
Pro II allows email direct from an error screen to technical support.
Data deletion, import, and export occur at increased speed and data
export to network drives is facilitated. Single and multiple user licenses
are available. Contact SKC for
multiple user information.
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-volt DC universal power supply, USB cable, silicone
dielectric grease, PID cleaning kit, 10-pack 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-volt DC universal
power supply, USB cable, silicone dielectric grease, PID cleaning kit,
10-pack 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-volt 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-volt DC universal power supply, toxic gas calibration
adapter, USB cable, and storage case Purchase Air Probe-10 Air Velocity Probe separately. |
||
| 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-volt DC universal power supply, USB cable,
silicone dielectric grease, 10-pack pump protection filters, dust zero calibration
assembly, and storage case Purchase Air Probe-10 Air Velocity Probe separately. |
||
| Dummy Sensor, seals empty sensor socket | ||
| Carbon Monoxide Smart Sensor | ||
| Chlorine Smart Sensor | ||
| Ethylene Oxide Smart Sensor | ||
| Hydrogen Cyanide Smart Sensor | ||
| Hydrogen Sulfide Smart Sensor | ||
| Nitric Oxide Smart Sensor | ||
| Nitrogen Dioxide Smart Sensor | ||
| Oxygen Smart Sensor | ||
| Sulfur Dioxide Smart Sensor | ||
| AirProbe-10 Air Velocity Kit includes AirProbe-10, mounting bracket, adapter cable, AC charger, and carry case | 120 V |
|
220 V |
||
| QuestSuite Professional
II System software single user license For additional user authorization codes, contact SKC. |
||
Additional accessories are available. Contact SKC.
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