FS1308 Transmitter particulate matter/particles, digital output Modbus


Fuehler Systeme


  • 0 μg/m³ ... 1000 μg/m³
  • Modbus
  • LCD-Display

Add to wishlist

With Display LCD
IP Classification IP65
Type of Instrument Particles in Air Monitor
The instrument measures: Optical Particle Counting
The Sensor measures: Particles
Output Signal: Modbus
Power Supply: 24 Vdc

The laser-based fine dust / particle sensor detects and quantifies particles PM2.5 / PM10 in the ambient air and converts the result into a BUS signal (Modbus RTU). For the optional relay output, the switching threshold and hysteresis can be specified per register. Also for the optional display, adjustments such as display content, orientation in 90 ° increments, mode of the backlight, etc. can be specified per register.
As special functions a series of defined measured values from other bus-participants (also cross-manufacturers) can be shown in the display. To display measured values from other bus-participants these are entered into the corresponding register by the bus-Master. The optional alternating contact can be configurated for measured values from other bus-participants.
The configuration of address, transmission mode/speed, terminating resistor and master/slave function of the bus-devices can easily be done using the innovative DIP switch technology. Thus devices can quickly and easily integrated into the system and later parameterised via the master.
The bus-devices can even be reset to the works settings during operation of the master. Thus the basic functionality of the device is recreated in a matter of seconds. This can be necessary in the event of incorrect parameterisations of, e.g. offset, switching threshold, display modes etc..
By means of the FS master/slave topology autarkic nodes without additional SPS master can be installed within the device series. Hereby a bus-device assumes the master function in the node. This requests the measured values from other bus-participants, automatically enters these into the corresponding register and shows them in the internal display. Furthermore the master can evaluate and operate additional actuators in the device series (analogue in- and outputs, relay station).

Measurement range PM2.5/PM10 0 μg/m³ ... 1000 μg/m³
Accuracy PM2.5/PM10 ±5 μg/m³ + max. ±4% FS (@ 20°C, 45% r.F., 1013 mbar)
Temperature dependency ±1% FS / 10 K
Response time (t90) < 1 s
Long term stability ±1% FS/year
Sensor laser-based sensor
Supply voltage 24 V DC (±5%)
Digital output Modbus RTU
Alarm output 1 x potential-free change-over contact, 48 V, 1 A
Switching Hysteresis Relay can be entered in the register
Electrical connection push-in terminal, no tools required, time-saving
Housing Polycarbonate PC UL 94 V0 with hinge locks, color signal white similar to RAL 9003
Cable gland PG11 high-strength cable gland with strain relief
Display optional LCD display with backlight on/off/auto
Dimensions Housing: L 89 x W 80 x H 47 mm
Protection type IP65 (housing/electronic), IP20 (sensor)
Protection class III
Working range r.H. 0...98% r.H. in contaminant-free, non-condensing air
Working temperature 0...+50°C
Storage temperature -20...+50°C
Initial operation After switch-on of the device it runs a self-test and the zero-point calibration. Depending on the ambient conditions, this process takes approx. 1 min., during this time, the digitally output value deviates from the actual value.
Installation screw fastening
Approvals CE, EAC, RoHS

30 other products in the same category: