EVM-4


EVM-4

The EVM-4 monitor is specifically designed for indoor air quality studies, and measures temperature, relative humidity, air velocity, toxic gas, and carbon dioxide. Does not measure particulates or select volatile organic compounds.

*Includes base model with CO2 Sensor, two Dummy Sensors (used to seal socket when no sensor is present), 053- 263 12V DC Universal Input Power Supply, 053-575 USB Cable, 074-726 Toxic Calibration Adapter and 074-718 Storage Case.*
  • Particulate, gas and photoionization detector (PID) measurement from a single device
  • Less equipment to carry to job site; compact, user-friendly design
  • 90-degree light scattering laser photometer measures particulates in real-time
  • Proprietary technology for selecting particulate settings; no need for external cyclones
  • Built in sampling pump allows for gravimetric analysis
  • Large, easy-to-read display with trend graphing for measurements
  • Time history data logging and compatibility with Detection Management Software makes analysis efficient
General
Display LanguagesEnglish, French, German, Italian, Portuguese, and Spanish
User Interface10 pushbuttons and 4 softkeys, menu driven
Display TypeTransreflective 128 x 64 LCD with backlighting
Software CompatibilityTSI Quest Detection Management Software DMS
StandardsCE Mark and RoHS compliant
Particulate Impactors Size FractionsPM2.5, PM4, PM10 or TSP (within the
instrument’s measurement range)
Flow Rate1.67 L/min
Displayed Data
MeasurementsLevel, Minimum, Maximum, Average, Short-Term Exposure Level (STEL), Time Weighted Average (TWA)
Real-Time MeasurementOnce per second display update rate
Time History Data Logging IntervalsSeconds: 1, 5, 15, 30
Minutes: 1, 5, 10, 15, 30, 60
Trend Graphing Intervals for All ParametersMinutes: 1.5, 3, 15
Hours: 1.5, 3, 8, 12, 24
Status IndicatorsBattery, Run, Stop, Overload and UnderRange
Averaging Time1 to 30 seconds
Physical Characteristics
Size7.5” x 7.5” x 2.75” (19 cm x 19 cm x 7 cm)
Weight2.9 lb (1.3 kg)
HousingStatic dissipative ABS Polycarbonate housing
Tripod Mount Standard photographic mount on bottom, 1/4” - 20 screw heads
Operating Conditions
Temperature Range32 °F - 122 °F (0 °C to 50 °C)
Pressure Range65 kPa to 108 kPa
Relative Humidity Range10% to 90% non-condensing
Storage Conditions
Temperature-4 °F to 140 °F (-20 °C to 60 °C)
Humidity0% to 95% RH, non-condensing
Electrical Characteristics
Intelligent SensorsAuto-detectable when inserted at power-off mode
Battery PackRechargeable lithium-ion
Battery LifeMinimum of 8 hours under continuous operation
External DC Power Input10 to 16 Volt power inlet (nominal 12V DC) 1.5A
Power AdapterUniversal AC adapter 100 to 240 Volt AC, 50-60 Hz
MethodBase UnitsDisplay ResolutionDisplay RangeAccuracy Repeatability
VOC: 10.6eV Photoionization Detector
Low Sensitivity PIDselect ppb or mg /m30.010.00 - 2,000+/-5% / 2%*** at calibration level
High Sensitivity PIDselect ppb or μg /m310 - 50,000+/-5% / 2%*** at calibration level
CO2
NDIR (Non-Dispersive
Infrared)
ppm10 - 5,000 ppm; autoranging (Noncondensing)+/-100 ppm @ 20 deg C, 1 bar pressure at 2,000 ppm applied gas
Temperature
Junction Diodedeg C0.10.0 - 60.0+/- 1.1 deg C
deg F0.132.0 - 140+/- 2 deg F
Relative Humidity
Capacitive% humidity0.10.0 - 100+/-5% RH* of signal between 10%-90%
Air Velocity
Omni-directional Heated Thermistor Windprobemeter/sec0.10.0 - 20+/-0.12 m/s + 4.5% of signal
feet/min10 - 3940+/-23.6 ft/min + 4.5% of signal
Particulates
90° Light Scattering / Integrating Photometermg / m30.0010.000 - 200.0+/-15% (rel ARD*)
μg / m310 - 20,000+/-15% (rel ARD*)
Particulates Size RangeμmN/A0.1 - 10**
Electrochemical Sensor
CO - Carbon Monoxide Sensorppm10 - 1,000+/-5% / 2% of signal
Cl2 - Chlorine Sensorppm0.10.0 - 20+/-5% / 2% of signal
EtO - Ethylene Oxide Sensorppm0.10.0 - 20+/-5% / 2% of signal
HCN - Hydrogen Cyanide Sensorppm0.10.0 - 50+/-5% / 2% of signal
H2S - Hydrogen Sulfide Sensorppm10.0 - 500+/-5% / 2% of signal
NO - Nitric Oxide Sensorppm0.10.0 - 100+/-5% / 2% of signal
NO2 - Nitrogen Dioxide Sensorppm0.10.0 - 50+/-5% / 2% of signal
O2 - Oxygen Sensor%0.10.0 - 30+/-5% / 2% of signal
SO2 - Sulfur Dioxide Sensorppm0.10.0 - 50+/-5% / 2% of signal
 EVM-3EVM-4EVM-7
EVM Monitor TypesParticulate Monitor (no indoor air quality monitor)Indoor Air Quality Monitor (no particulates)Indoor Air Quality/Particulate Monitor (eliminates the need for separate meters)
Temperature+++
Relative Humidity+++
Air Velocity (With Purchase of Optional Accessory)+++
Particulates (Mass Concentration)++
Toxic Gas (Choose from 9 Sensors)++
Carbon Dioxide++
Select Volatile Organic Compounds+