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High Volume Aerosol Sampler DH-77

with single filter unit for autonomous, continuous aerosol sampling

High Volume Aerosol Sampler
High Volume Aerosol Sampler DH-77 - Image 2
High Volume Aerosol Sampler DH-77 - Image 3

Key Features

  • Autonomous, continuous sampling
  • For single filter sampling
  • Constant and precise flow
  • Flow range 100 to 1’500 l / min
  • Filter diameter 150 mm
  • TSP, PM10, PM2.5 and PM1 inlets
  • For PM 2.5 and PM 10 measurements according to EN12341: 2014, Annex B
Good to Know
  • Light weight but robust and weather proof (field housing)
  • Low energy consumption, low energy cost
  • Low maintenance cost
  • Maintenance free blower
  • Low noise
  • Easy programming with touchscreen
  • Easy filter handling
  • Software for EN12341 tests

Description

DIGITEL High Volume Aerosol Samplers DH-77 are fully automatic systems to sample dust and aerosol particles for later assessment and analysis (gravimetric and analytical determination). The sampler operation range is 100 to 1’500 litres per minute (6 to 90 m³/h). The sampling can be programmed with starting time and duration but also for more complex applications using cycles for interrupted sampling or wind dependant sampling (with optional wind sensor). The field housing of the DIGITEL HVS DH-77 is suited for outdoor installation. It is easy to transport and because of a good sound insulation, very quiet. Superior workmanship in sampler mechanics backed by the latest electronic control guarantees a long lifetime and absolutely reliable operation.

Specifications

Sampling
  • Flow rate: 100-1,500 l/min, delivered with 420-600 lpm glass tube as a standard
  • Filter: 1 round filter of d = 150 mm, flowing area d = 140 mm
  • Application range: -10° to 50° C; 0 % to 95 % RH with interior heating, 2000 amsl
Time programs
  • Work, Pause (0 to 99’999 minutes each)
  • Start time adjustable, using date and time
  • Different sampling cycles programmable
Protocol files
  • Data of filter, temperature, pressure, humidity, flow, blower load
Accuracy
  • Constancy of sample flow: <2% with calibration at 20°C, operating at -20°C-+50°C
  • Reproductible tolerance of settings: +/- 0.45 %
  • Accuracy of measured flow volume: +/- 2 %
  • Volume flow control accuracy: < 5 % of MRAV (uncalibrated)
Operating data
  • Power supply: 230V AC / 50-60 Hz; max. 1700 W
  • Mean life cycle suction unit: > 36’000 h
  • Sensors: Ambient and flow pressure, temperature, humidity, filter storage temperature
Interfaces
  • RS232C, USB, Ethernet, RS485
  • Interface protocols: DIGITEL, Bayern-Hessen, AK, TCP/IP, HTTP, FTP
  • Internal memory: 16MB, ring buffer, filter data of two years of daily sampling
Inlets
  • TSP, PM10, PM2.5 and PM1, customized inlets on request
Materials
  • Coated aluminium, stainless steel, POM, PTFE, NBR
  • Material of sampling line: EMATAL coated aluminium
Dimensions & Weight
  • Field housing (without inlet) 526x 235 x 1000 mm, 32 kg, protection class IP54
  • Component layout 20 kg
Sensor specifications
  • Ambient & internal pressure sensor range/ accuracy (calibrated): 300 – 1100 hPa/ ± 0.12 hPa
  • Ambient & internal temperature sensor range/ accuracy (calibrated): -40 – +65°C/ ± 0.5°C
  • Ambient & internal humidity sensor range/ accuracy: 0 – 60°C; 0 – 100 %/ ± 3 % rH

Options

  • PAH cartridges
  • LTE router for direct remote access
  • Text message (SMS) module for status and alert messages
  • Sampling controlled by external sensors (e.g.: wind sensor or particle counter)
  • FollowFlow option
  • Heating for inlet
  • External meteorological data collection (e.g.: wind direction and wind controlled measurement)
  • Customer- specific functions

Documents

Brochure-DH-77

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