Ambient air dust monitoring

AirSafe 2

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

Application examples:

  • 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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