ES-642 Cloud Lite

The ES-642 Cloud Lite brings together the Met One ES-642 MCERTS dust system with Svantek’s leading Class 1 sound level meter, the SV 307A. The ES-642 Cloud Lite is plugged directly into the SV 307A with data from both systems being uploaded live to our cloud platform, SvanNET, providing you with full PM10 and noise data sets.


For more information on ES-642 Cloud Lite or to request a quote, contact our team now:


The ES-642 Cloud Lite system offers:

  • PM10 or PM2.5 averaged and instantaneous results
  • Configurable logger steps
  • Advanced alarms for dust data alongside noise and vibration alarms
  • Controlled input heater
  • Lifetime warranty on microphone
  • Inbuilt acoustic calibrator
  • Automatic advanced alarms

Our dust system, has the advantage of only needing to be calibrated every 2 years, bringing the dust calibration interval in line with noise and vibration systems. This keeps your calibrations aligned and reduces the total cost of ownership, making it much lower than other solutions available.


  • Construction
  • Infrastructure
  • Demolition
  • Military Applications
  • Environmental Clean Up Sites
  • Air Pollution Level Monitoring

ES-642 Unit Specifications:

Measurement PrinciplesParticulate concentration by forward light scatter laser Nephelometer
Available Cut PointsTSP Inlet Standard. PM10, PM2.5, and PM1 sharpcut cyclone inlets available
Measurement Range0 to 100 mg/m3 (0 to 100,000 μ g/m3)
Display2 X 16 back lit LCD. Provides information on operation including Power, Flow Operation, Status and Concentration
Zero CalibrationAutomatic Zero Calibration every hour or as programmed from 1 to 999 minutes
Power Consumption350 mA (no heater) 1.1 A (with heater) @ 15 VDC
Operating Temperature0 to +50°C . (Ambient Temperature Sensor Range -30 to +50°C)
Intake Moisture ControlAutomatic 10 Watt inlet heater module controlled to sample RH set point
Factory Service Interval24 Months typical, under continuous use in normal ambient air
Mounting OptionsWall mount bracket standard or EX-905 tripod

SV 307A Specifications

StandardsClass 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014
Weighting FiltersA, B, C, Z, LF
Time ConstantsSlow, Fast, Impulse
RMS DetectorDigital True RMS detector with Peak detection, resolution 0.1 dB
MicrophonePatented MEMS based design microphone ST 30A in 1/2” housing
Linear Operating Range30 dBA RMS ÷ 128 dBA Peak (in accordance to IEC 61672)
Total Dynamic Measurement Range23 dBA RMS ÷ 128 dBA Peak (typical from noise floor to the maximum level)
Internal Noise Levelless than 23 dBA RMS
Dynamic Range>100 dB
Frequency Range20 Hz ÷ 20 kHz
Meter Mode ResultsElapsed time, Lxy, Lxeq (LEQ), Lxpeak (PEAK), Lxymax (MAX), Lxymin (MIN), LxyE (SEL),
2 x LR (ROLLING LEQ),10 x LN (LEQ STATISTICS), Lden, LEPd, Ltm3, Ltm5, GPS coordinates
Measurement ProfilesSimultaneous measurement in three profiles with independent set of filters (x) and detectors (y)
StatisticsLn (L1-L99), complete histogram in meter mode and 1/1 & 1/3 octave analysis
Data LoggerLogging of summary results (SR) and spectra data with interval step down to 1 s
and time history (TH) of selected parameters with shorter interval step down to 100 ms
1/1 Octave Analysis (option)Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 31.5 Hz to 16 kHz
1/3 Octave Analysis (option)Real-time analysis meeting Class 1 requirements of IEC 61260, centre frequencies from 20 Hz to 20 kHz
Audio Recording (option)Time domain records to wav file format on demand with selectable bandwidth and recording period
Ingress Protection RatingIP 64
GPSTime synchronization and localization
Remote system checkInbuilt reference sound source producing level of 100 dB at 1 kHz
MemoryMicroSD card 32 GB (removable & upgradeable up to 128 GB)
Display & KeyboardOLED colour display 128 x 160 px and 10 push-button keyboard
Communication InterfacesUSB 2.0
4G modem
RS 232 for meteo module or dust monitor
Power supplyLi-Ion rechargeable battery (non-removable)
Operation time on battery (7.2 V / 10 Ah):
Modem off
Modem on
Solar Panel (not included)
AC power supply (included)
External DC source (not included)up to 6 days
up to 5 days (depends on modem usage)
MPPT voltage 17.0 V ÷ 20.0 V
Input 100 ÷ 240 VAC
output +15 VDC 2.5 A, IP 67 housing
voltage range 10.5 V ÷ 24 V
e.g. 12 V or 24 V accumulator
Environmental ConditionsTemperature
from -20 °C to 50 °C
up to 95 % RH, non-condensed
Dimensions680 mm length; 80 mm diameter excluding windscreen (windscreen diameter 130 mm)
WeightApprox. 2.0 kg

*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice

Unit Weight: 2.27 kg ( 6.0 lbs)
Unit Dimensions: 22.9cm high, 17.8cm wide, 10.8cm deep, (9.0” x 7.0” x 4.25”), w/out inlet assy. 48.3cm high, 17.8cm wide, 10.8cm deep, (19.0” x 7.0” x 4.25”), w/ inlet assy.



ES-642 Cloud Lite

Advanced alarms for dust data alongside noise and vibration alarms

Related Products