SMART-Dust-Sensor SM-PWM-01A-Datasheeet-Jun15

Amphenol
Advanced Sensors
®
SMART
Dust Sensor
SM-PWM-01A
SM-PWM-01A is a dust sensor that detects the
dust particle concentration in air by using optical
sensing method. An infrared light emitting diode (IR
LED) and a photo-sensor are optically arranged in
the device. The photo-sensor detects the reflected
IR LED light by dust particles in air.
The SMART Dust Sensor can detect the small
particles like cigarette smoke and it can distinguish
small particles like smoke from large house dust by
pulse pattern of signal output.
Applications
Features
• Detection for dust in the air, Indoor Air quality
monitoring
• Compact size, light weight (about W59x H46x
D18 mm, 23g)
• Air cleaner, Air
• PWM (pulse width modulation) output (Low pulse
output)
Air conditioner
• Outdoor dust monitoring with the IAQ monitor
special mechanical design for customer
• Smoke type Fire alarm application by different
sensor adjustments (customer option)
• Able to distinguish small particles of cigarette
smoke from large particles of house dust
• The Low pulse width is proportion to particle size
and concentration
• Constant forced air convection
resister in dust sensor
by heater
• Lead free and ROHS directive compliant
• Minimum particle size can be detected over 1µm
(House dust size: avg 20µm, yellow dust size: avg
20um, cigarette dust size: avg 1µm)
Page 1 of 4
Willow Technologies Ltd.
+ 44 (0) 1342 717102
Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom.
+ 44 (0) 1342 717014  [email protected] http://www.willow.co.uk
W262015
SMART Dust Sensor Specifications
Electrical Characteristic
Internal Schematic
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage
Vcc
-0.3 to + 7.0
V
Operating temperature
Topr
-10 to 60
°C
Signal Output (P1)
Storage temperature
Tstg
-30 to 80
°C
Signal Output (P2)
Dust,
Cigarette Smoke
GND
Vcc (+5 V)
No Connection
Operating Supply Voltage and Signal Output
(Ta=25
°C )
Parameter
Symbol
Rating
Supply voltage
Vcc
DC 5 ± 5%,
Ripple <100mV
Current
Consumption
Icc
< 100± 5%
P1, P2
Hi : > 4.5V,
Lo : <0.7V, *1
Negative Logic Pulse
output
Signal output
Power up time *
90
Unit
V
mA
P1: small particle (1~ 2µm),
P2: large particle (3 ~10µm)
• SM-PWM-01A dust sensor cannot count particles
or measure quantitatively; the size is only for
reference.
Sec
*2
*1. Input impedance 200 kΩ, Pull-Up 10 kΩ, recommend 30 sec
moving average of output signal
*2. To stabilize heater resister and air
in dust sensor
Recommend Operating Temperature/Humidity
Parameter
Rating
Operating Temp./
Humidity
-10°C ~ 45°C,
< 85%RH *1
Unit
°C, %RH
*1. Dust sensor can detect the micro size water droplet, like fog
and mist, as particles.
Do not use the dust sensor in high humidly environments as the humid air
is under submicron size and the dust sensor cannot differentiate this
.
Page 2 of 4
Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom.
+ 44 (0) 1342 717102
+ 44 (0) 1342 717014  [email protected] http://www.willow.co.uk
W262015
Connector
Standard connector (SM-PWM-01A)
Connector
Part No.
Symbol
Connector
SMAW250-05G
Housing
25048HS-05
Terminal
YST025
• SMAW250-05G
Description
Maker
2.5mm
pitch
YeonHo Elec.(Korea)
www.yeonho.com/
is standard
Pin
Number
Symbol
1
GND
Pin Description
2
P2
Low pulse Signal output(P2) of large
particle, active low
3
Vcc
Input Supply voltage
4
P1
Low pulse Signal output(P1) of small
particle, active low
5
NC
no connected,
Ground, Connect with System ground
• Please refer the drawing for pin sequence.
• For P1 and P2, Do not need to external pull up resister, internal pull up resistor is 10K.
Page 3 of 4
Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom.
+ 44 (0) 1342 717102
+ 44 (0) 1342 717014  [email protected] http://www.willow.co.uk
W262015
Amphenol
Advanced Sensors
are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
AAS-920-643A
Page 4 of 4
Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom.
+ 44 (0) 1342 717102
+ 44 (0) 1342 717014  [email protected] http://www.willow.co.uk
W262015