Svantek UK

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 307. The ES-642 Cloud Lite is plugged directly into the SV 307 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:

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The ES-642 Cloud Lite and SV 307 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 Principles Particulate concentration by forward light scatter laser Nephelometer
Available Cut Points TSP Inlet Standard. PM10, PM2.5, and PM1 sharpcut cyclone inlets available
Measurement Range 0 to 100 mg/m3 (0 to 100,000 μ g/m3)
Display 2 X 16 back lit LCD. Provides information on operation including Power, Flow Operation, Status and Concentration
Zero Calibration Automatic Zero Calibration every hour or as programmed from 1 to 999 minutes
Power Consumption 350 mA (no heater) 1.1 A (with heater) @ 15 VDC
Operating Temperature 0 to +50°C . (Ambient Temperature Sensor Range -30 to +50°C)
Intake Moisture Control Automatic 10 Watt inlet heater module controlled to sample RH set point
Factory Service Interval 24 Months typical, under continuous use in normal ambient air
Mounting Options Wall mount bracket standard or EX-905 tripod

SV 307 Specifications

Standards Class 1: IEC 61672-1:2013, Class 1: IEC 61260:2002
Weighting Filters A, B, C, Z, LF
RMS Detector Digital True RMS detector with Peak detection, resolution 0.1 dB
Time constants: Slow, Fast, Impulse
Microphone Patented MEMS design microphone ST30 in 1/2” housing
Preamplifier Integrated
Linear Operating Range 30 dBA RMS ÷ 126 dBA Peak (in accordance to IEC 61672)
Total Dynamic Measurement Range 20 dBA RMS ÷ 126 dBA Peak (typical from noise floor to the maximum level)
Internal Noise Level less than 20 dBA RMS
Frequency Range 20 Hz ÷ 20 kHz
Meter Mode Results Elapsed time, Lxy (SPL), Lxeq (LEQ), Lxpeak (PEAK), Lxymax (MAX), Lxymin (MIN),
Lxye (SEL), 2 x LR (ROLLING LEQ), 10 x LN (LEQ STATISTICS), Lden, LEPd, Ltm3, Ltm5
Simultaneous measurement in three profiles with independent set of filters (x) and detectors (y)
Statistics Ln (L1-L99), complete histogram in meter mode

Ln (L1-L99) statistics in 1/1 or 1/3 octaves (if option is active)

Data Logger logging of summary results with step from 1 s (auto-save function)

logging of time history with step from 2 ms

1/1 Octave Analysis (option) Real-time analysis meeting Class 1 requirements of IEC 61260, centre 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 (full band), selectable weighting filter, detector linear
Audio Recording (option) Audio events recording during measurement, trigger or continuous mode, 12 / 24 / 48 kHz sampling rate, 16 or 24 bit, wav format
Ingress Protection Rating IP 65
Inputs Power supply LEMO 4-pin, extended I/O port LEMO 5-pin
Remote system check Inbuilt reference sound source producing level of 100 dB at 1 kHz
Memory Micro SD card 16 GB (removable)
Display & Keyboard OLED colour display 128 x 160 px and 10 push-button keyboard
Communication Interfaces USB, 3G modem
Power supply 3G modem (included in SV 200_3G)
Operation time on battery (7.2V / 10Ah)
Modem off up to 6 days
Modem on up to 5 days
Solar Panel (not included) MPPT voltage 17.0 V ÷ 20.0 V
AC power supply (included) – Input 100 ÷ 240 VAC, output +15 VDC 2.5 A, IP 67 housing
External DC source (not included) voltage range 10.5 V – 24 V
Environmental Conditions Temperature from -20 oC* to 50 oC

*Only with external powering otherwise -10oC to 50 oC

Humidity up to 95% RH, non-condensed
Dimensions 680 mm length; 80 mm diameter excluding windscreen; windscreen diameter 130 mm
Weight  Approx. 1.8 kg with batteries

*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

Introducing The Renew 1:
A solar only power solution using a 115W solar panel together
with a 38Ah deep cycle battery. Ideal for running systems requiring lower power such as the SV 307 noise monitor under typical environmental conditions.