ENVEA

- Model AirSafe 2 - Ambient Air Dust Monitoring

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Continuous dust monitoring in ambient air: control system areas, silo areas, boiler houses, work stations. AirSafe 2 is an electrodynamic dust sensor monitoring leakages and dust concentration in ambient air in production facilities or workplaces. This versatile sensor allows you to keep under control your ambient environment. An alarm is generated when a threshold is exceeded.

  • Controlled and self-monitored system
  • Calibratable alarm
  • Prevents creation of dust explosion zones
  • Dust concentrations in the ambient air are safely monitored
  • AirSafe can be used as early detection for dust which could endanger the workplace
  • Adapted for applications in zone 22 dust
  • Possible dust leakage from the process is quickly detected

  • Food
  • Paper
  • Chemistry
  • Power Plant
  • Cement
  • Hospital

  • Monitors dust concentrations on the basis of pre-set limit values
  • Can be used as early detection of particulate concentrations which could endanger the workplace

Sensor Technical Data

  • Measuring: Solid particles in ambient air
  • Particle size: 0.3 µm or larger
  • Measurement range: From 0.1 mg/m3
  • Ambient temperature: – 20 . . . + 60 °C
  • Humidity: 95 % RH (non-condensing)
  • Measurement principle: Electrodynamic
  • Damping time: 1 s
  • Output signals: Relay output, either NC or NO
  • Dimensions (L x W x H): 500 x 100 x 240
  • Housing material: Sensor: Aluminium
  • Flow duct: St52 power-coated
  • Power supply: 24 ± 10 % V DC
  • Rating: Max. 10 W
  • MElectrical connection: Screw terminals
  • Weight: 5.5 kg

Transmitter Technical Data

  • Power supply: 24 V DC ±10 %
  • Power consumption: 20 W / 24 VA
  • Protection type: IP 40 to EN 60 529
  • Ambient operating temperature: -10 … +45 °C
  • Dimensions (W x H x D): 23 x 90 x 118 mm
  • Weight: Approx. 172 g
  • DIN rail fastening: DIN 60715 TH35
  • Connection terminals cable
  • cross-section: 0.2-2.5 mm2 [AWG 24-14]
  • Current output: 1 x 4 … 20 mA (0 … 20 mA), load < 500 Ω
  • Interface: ModBus RTU (RS 485) / USB
  • Pulse output: Open collector – max. 30 V, 20 mA
  • Relay contact: Max. rated load: 250 V AC
  • Max. peak current: 6 A
  • Max. rated load 230 V AC: 250 VA
  • Max. breaking capacity DC1: 3/110/220 V: 3/0.35/0.2 A
  • Min. switching load: 500 mW (10 V / 5 mA)
  • Data backup: Flash memory

AirSafe 2 can be installed anywhere in a room.
Except of high ambient temperatures, there is no need to maintain distances from units or walls.

AirSafe 2 can be wall-mounted using brackets provided.

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