Datasheet

3
B5W-LD0101-1/2
Engineering Data (Reference value)
Dust concentration - Number of Detected Particles Correlation Graph
Mesurement evironment
Dust monitor Model: TSI DUSTTRAK II MODEL8530
Impactor: 1.0 μm, Calibration factor=1
Air Quality Sensor Threshold voltage: 0.5 V
Measurement time: 20 sec
Detection object: Smoke of incense
Conditions: Ta=25°C, Vcc=5 V, 0 Lx
Note: The above figure shows reference information from 30 pcs measurement.
Output Signals
Internal Block Diagram
Dust concentration [µg/m
3
]
V (OUT1)
V (OUT2)
0
100
200
300
400
500
600
0 100 200 300 400 500 600
700
Number of
detected
particles
[count]
V (OUT1), V (OUT2)
Low
High
• A positive pulse of 0 V is output when particles are not detected and 5 V when particles are detected
• Count the number of pulses within the measurement time and take this number to be the sensor count.
• The minimum pulse width is 0.5 msec.
• Use a sampling frequency of 4 kHz or more.
Sensing
station
(1) Vcc
(3) GND
(2) V (OUT1)
(5) V (OUT2)
(4) Vth
3 kΩ
3 kΩ
Signal
processing 1
Signal
processing 2