1
Air Quality Sensor
B5W-LD0101-1/2
Highly Sensitive and Compact Air Quality Sensor
• Detection of particles down to 0.5 m in diameter is
possible while using an LED light source
• Features a unique flow path structure that efficiently sucks in air
• Small in size thanks to its compact optical system
Model Number Structure
Ordering Information
RoHS Compliant
Be sure to read Safety Precautions on page 4.
(1) (2)
B5W- L D 01 01 - @
(3) (5)(4)
(1) Standard type
L: Optical sensor
(2) Sensor type
D: Air Quality sensor
(3) Structure
01: Basic structure
(4) Function
01: Basic function
(5) Packing state
1: 1
2: 300
Appearance Sensing
method
Connecting
method Output type Model Packing state
Light scattering Connector Pulse output
(Built-in pull-up resistor 3 k )
B5W-LD0101-1 1
B5W-LD0101-2 300
17.6
52.3 39.3
2
B5W-LD0101-1/2
Ratings, Characteristics and Exterior Specifications
Absolute Maximum Ratings (Ta=25°C)
Exterior Specifications
Electrical Characteristics
(Ta=25°C, Vcc=5 V, 0 Lx)
*Ensure there is no noise below 300 Hz.
Confirm the allowable ripple voltage value using an actual machine.
Detection Characteristics
(Ta=25°C, Vcc=5 V, 0 Lx)
Minimum detectable particle
V (OUT1): Approx. 0.5 m or larger
V (OUT2): Approx. 2.5 m or larger
Parameter Symbol Ratings Unit
Supply voltage VCC 5.5 V
Input threshold
voltage Vth 5.5 V
Operating
temperature Topr 0 to 45 °C
Storage
temperature Tstg -25 to 65 °C
Connecting
method Weight (g) Material
Case Lens
Connector 20 PC PMMA
Parameter
Characteristics
value Unit Remarks
MIN TYP MAX
VCC 4.5 5 5.5 V
Ripple voltage range
30 mV or less (
*
) is
recommended
Vth 0 --- 3.5 V
V (OUT1)/
V (OUT2)
Hi level output
4.5 --- --- V Pulse output when
particles are detected
V (OUT1)/
V (OUT2)
Low level output
--- --- 0.7 V Pulse output when
particles are not detected
Supply current --- --- 90 mA LED-ON
Parameter
Characteristics
value Unit Remarks
MIN TYP MAX
V (OUT1)
Number of
detections
PN1 --- 300 --- count
Model of dust monitor:
TSI DUSTTRAK II
MODEL8530
Impactor: 1.0 m
Dust concentration = 100
g/m
3
Measurement time: 20 sec
Threshold voltage:
Vth=0.5 V
Detection object: 0.5 m
Polystyrene latex particles
V (OUT2)
Number of
detections
PN2 0 --- --- count
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/m3]
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
*For operation, the input threshold voltage Vth must be set to between 0.5 and 3.0 V. The recommended
threshold voltage Vth is 0.5 V, which is same detection characteristics for ratings, characteristics and
exterior specifications.
4
B5W-LD0101-1/2
Safety Precautions
To ensure safe operation, be sure to read and follow the Instruction Manual provided with the Sensor.
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Do not use the product with a voltage or current that
exceeds the rated range.
Applying a voltage or current that is higher than the rated range may
result in explosion or fire.
Do not miswire such as the polarity of the power supply
voltage.
Otherwise the product may be damaged or it may burn.
This product does not resist water. Do not use the
product in places where water or oil may be sprayed onto
the product.
When installing, arrange so that the heater portion cannot
be accessed by the end user.
Do not use the product in atmospheres or environments
that exceed product ratings.
Treat this product as industrial waste when disposing.
Mounting posture: Use this product standing vertically
(within ±3°).
Install with the suction inlet facing downwards and the
exhaust outlet facing upwards. Ensure that a space that
is the same as that specified on the following page is
secured in order to prevent the suction inlet and exhaust
outlet from becoming clogged with dust.
So that the detection area will be completely dark, place
a cap over the lens cleaning window.
Stable measurements can be performed approximately 1
minute after the power supply is turned on.
Remove any debris adhered to the lens using a dry cotton
swab.
When installing, arrange so that the heater portion cannot
be accessed by the end user.
Do not use organic solvents as they may alter lens
properties.
Elements of this product may be damaged or its reliability
may decrease due to surges in voltage caused by static
electricity, etc. When handling, take measures to prevent
static electricity, such as using wristbands or static
electricity preventing gloves.
Never insert or remove connectors while the power
supply is on.
Do not touch the pre-set resistors for adjusting sensor
sensitivity.
Do not apply mechanical stress to this product. Doing so
could result in damage to the product or defective sensor
properties. Also, sufficiently confirm that no such defects
have occurred when using while mounted to your
products.
Be aware that injuries may occur if sharp portions such
as the lead of the soldered surface or the edge of the
circuit board are touched when handling this product.
When handling this product, take care to prevent the lens
surface from being scratched or becoming dirty. Failure
to do so may result in changes to sensor properties. Also,
ensure that there is no freezing or condensation.
When inserting or removing connectors, do so in a level
and perpendicular manner. Never insert or remove
connectors by twisting vertically, horizontally, or in a
slanted manner. When inserting connectors, ensure that
they are fully inserted.
Do not use products that have been dropped. Doing so could
result in damage to the product or defective sensor
properties.
Only use after determining that usage is possible by
sufficiently evaluating for the following changes in
properties.
(a)Temperature properties (if there are changes in ambient
temperature when using this product, changes in output from
that sensor)
(b) Response properties (sensor output changes due to sampling
timing when using this product)
(c)Freezing/condensation conditions (if freezing or condensation
occur when using this product, changes in output from that
sensor)
Defects and damage caused by these changes in properties shall
not be covered by warranty.
CAUTION
Precautions for Safe Use
Precautions for Correct Use
5
B5W-LD0101-1/2
Dimensions (Unit: mm)
Air Quality Sensor
Mounting Conditions
The recommended dimensions for the suction inlet and exhaust outlet of the Air Quality Sensor are as follows.
Mount the Sensor with the suction inlet down and the exhaust outlet up as shown in the figure below.
Secure the spaces shown in the figure.
50
1
2
×
3
24.5
17
3
1.3
±0.2
46
37
2×13.8
52.3
0.3
8.5
39.3
0.3
41.6
6 or less
Mounting range
Center of exhaust
outlet
16
1.6
Heater
Center of
suction inlet
(1)(2)(3)(4)(5)
10 or more
Unit: mm
10 or more
Align this surface
with the exterior
of the sensor
10 or more
Align this surface
with the exterior of
the sensor
Align with the center of
the sensor opening
Align with the center of
the sensor opening
<Exhaust outlet>
<Suction inlet>
Note1: Ensure that the suction inlet and exhaust outlet are as close to the sensor case
in the forward and rear directions as possible
Note2: Install to the flat part using an M3 screw with a tightening torque of 0.54 N·m or less.
25 or more
Mounting direction
(upper)
• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.
• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad
systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious
influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or
equipment, and be sure to provide the system or equipment with double safety mechanisms.
OMRON Corporation
Electronic and Mechanical Components Company Contact: www.omron.com/ecb Cat. No. E475-E1-03
0419(1117)(O)
Note: Do not use this document to operate the Unit.