mp motion sensor - Electronics Sources

mp motion sensor - Electronics Sources
MP Motion Sensor (AMN2, 3, 4)
MOTION SENSOR
(PASSIVE INFRARED TYPE)
Standard type
2. Dual lens colors (white and black)
are available
With an ultrasmall design and dual lens
colors (white and black), it is
inconspicuous, allowing the user to select
either white or black to match the
equipment color. This provides greater
flexibility in equipment design.
3. Both digital output and analog
output (with adjustable sensitivity) are
available.
4. Built-in amplifier for easy use
Has a built-in amplifier, and can be
connected directly to a microcomputer.
Slight motion
detection type
Spot type
• Block diagram of the digital output circuit
10 m detection type
TO5 metal package
(9.8mm × 9mm .386inch × .354inch dia.)
Infrared
radiation
What is passive infrared type?
This sensor detects changes in infrared radiation which
occur when there is movement by a person (or object)
which is different in temperature from the surroundings.
Q As this sensor detects temperature differences, it is
well suited to detecting the motion of people by their
body temperature.
W Wide sensing area.
Single-chip
Stabilized
IC
power
supply
Amplifier
circuit
Multi lens
Optical filter
Comparator
output
circuit
Vdd
MP MOTION SENSOR
‘
’
Slight motion detection type:
Detects movement of approximately
20cm 7.874inch.
6. Noise withstanding capability
Circuitry is contained in a TO5 metal
package, providing at least twice the
noise withstanding capability as
conventional type.
• Comparison example of noise
withstanding capability
Conventional type
MP Motion Sensor
Distance at which motion
sensor is not affected
by cellular phone noise
Min. 1 to 2m 3.281 to 6.562ft
Min. 1 to 2cm .394 to .787inch
7. A low current consumption type (46
µA) has also been added to the lineup.
A type that keeps current consumption to
46 µA (less than 30% compared to
predecessor) is now available.
Ideal for battery driven devices.
Output
*Digital output type only.
Gnd
8. A more economically priced digital
output type (ST type) has been
launched.
Quad type
PIR element
Sensor
• Block diagram of the analog output circuit
TO5 metal package
(9.8mm × 9mm .386inch × .354inch dia.)
Infrared
radiation
Temperature difference
Infrared
radiation
Infrared
radiation
Single-chip
Stabilized
IC
power
supply
APPLICATIONS
Vdd
Movement
Multi lens
RoHS Directive compatibility information
http://www.mew.co.jp/ac/e/environment/
Optical filter
Output
Amplifier
circuit
Gnd
Quad type
PIR element
5. Detects even slight motion of a
person
With our sensor, even slight motions
made by people will be detected easily.
FEATURES
1. The world’s smallest* with a built-in
amplifier
Extremely compact. Ideal for use in
miniaturized devices.
• Fine motion detection capability within
approximately 2 meters of sensor.
Standard type:
Detects movement of approximately
30cm 11.811inch.
(*Based on our investigation as of November, 2006)
1. Home appliances
Useful for saving energy in air
conditioner, television, personal
computer, or ventilator and air purifier
2. Amusement machine market
Useful for saving energy and for
automated guidance in theme parks and
large video games
3. Equipment in service market
Useful for automated guidance,
automated announcements and energy
saving in vending machines, ATMs, etc.
4. Lighting market
Automated on/off controls, etc. for lamps,
desk lamps, indoor lights, halls, stairway
lights, etc.
ORDERING INFORMATION
AMN
Output
2: Analog output
3: Digital output (ST type)
4: Low current consumption
(digital output)
Detection performance
1: Standard detection type
2: Slight motion detection type
3: Spot detection type
4: 10m detection type
1
Feature
1: PC board mounting type
Operating voltage
1: 5V DC
2: 3V DC
Lens color
1: Black
2: White
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
MP Motion Sensor (AMN2, 3, 4)
PRODUCT TYPES
1. Digital output
Rated operating
voltage
Detection performance
Ambient
temperature
Lens color
Part No.
–20 to +60°C
–4 to +140°F
Black
White
Black
White
Black
White
Black
White
Black
White
Black
White
Black
White
Black
White
AMN31111
AMN31112
AMN41121
AMN41122
AMN32111
AMN32112
AMN42121
AMN42122
AMN33111
AMN33112
AMN43121
AMN43122
AMN34111
AMN34112
AMN44121
AMN44122
Ambient
temperature
Lens color
Part No.
–20 to +60°C
–4 to +140°F
Black
White
Black
White
Black
White
Black
White
AMN21111
AMN21112
AMN22111
AMN22112
AMN23111
AMN23112
AMN24111
AMN24112
Standard
Standard detection
type
Low current
consumption
Standard
Slight motion
detection type
3 to 6 V DC
2.2 to 3 V DC
(Low current
consumption type)
Low current
consumption
Standard
Spot detection type
Low current
consumption
Standard
10m detection type
Low current
consumption
Packing quantity
Inner
Outer
50 pcs.
1,000 pcs.
2. Analog output
Rated operating
voltage
Detection performance
Standard detection type
Slight motion detection type
4.5 to 5.5 V DC
Spot detection type
10m detection type
Packing quantity
Inner
Outer
50 pcs.
1,000 pcs.
PERFORMANCE
1. Detection performance
Items
Rated detection distance
*Remark 1
Horizontal
*Remark 2
Detection Vertical
range
*Remark 2
Detection zone
*Remark 3
Standard
Slight motion Spot detection 10m detection
detection type detection type
type
type
5m 16.404ft
(Max.)
2m 6.562ft
(Max.)
5m 16.404ft
(Max.)
1. Detectable difference in temperature between the target and
10m 32.808ft
background for the spot type is more than 4°C 39.2°F.
(Max.)
2. Movement speed
100°
91°
38°
110°
82°
91°
22°
93°
64 zones
104 zones
24 zones
80 zones
*Remarks 1. Depending on the difference in temperature between the background
and detection target and the speed at which the target moves, these
sensors may be capable of detection beyond the detection distances
stated above. Nevertheless, they should be used within the prescribed
detection distances. For further details, refer to the detection range
diagram on page 25.
Conditions of objects to be detected
1) Digital output type (ST type)
• Standard detection type/Spot detection type/
10m detection type: 0.8 to 1.2 m/s
• Slight motion detection type: 0.5 m/s
2) Analog output and low current consumption types
• Standard detection type/Spot detection type/
10m detection type: 0.5 to 1.5 m/s
• Slight motion detection type: 0.3 to 1.0 m/s
3. Detection object = human body (size is 700mm × 250mm
27.559inch × 9.843inch, but for the slight motion detection
type the size is 200mm × 200mm 7.874inch × 7.874inch)
*Remarks 2.
Vertical
Vertical
Horizontal
Cut out
Horizontal
Cut out
(Standard detection/
Slight motion detection type)
(Spot detection type/
10 m detection type)
*Remarks 3. Regarding of detection zone, please refer to “DETECTION
PERFORMANCE” on page 25.
2. Rating (Measuring condition: ambient temp. = 25°C 77°F) (Common to All types)
Items
Power supply voltage
Usable ambient temperature
Storage temperature
Specified value
–0.3 to 7 V DC
–20 to 60°C –4 to +140°F
–20 to 70°C –4 to +158°F
Remarks
No freezing and condensing at low temperature.
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
MP Motion Sensor (AMN2, 3, 4)
3. Electrical characteristics (Measuring condition: ambient temp. = 25°C 77°F; operating voltage = 5V) (Common to All types)
1) Digital output
Items
Symbol
Rated operating voltage
Rated consumption current
(Standby)*Remark
Current
Output
(when detecting) Voltage
Circuit stability time
Minimum
Typical
Maximum
Typical
Maximum
Maximum
Minimum
Maximum
Typical
Maximum
Standard type
3.0 V DC
—
6.0 V DC
170 µA
300 µA
100 µA
Vdd –0.5
—
7s
30 s
Vdd
Iw
Iout
Vout
Twu
Specified value
Measured conditions
Low current consumption type
2.2 V DC
—
3.0 V DC
46 µA
Iout = 0
60 µA
100 µA
Vout 7 Vdd–0.5
Vdd –0.5
Open when not detecting
—
7s
30 s
Remark: The current which is consumed during detection consists of the standby consumed current plus the output current.
2) Analog output
Items
Symbol
Rated operating voltage
Rated consumption current
Output current
Output voltage
Output offset average voltage
Steady-state noise
Circuit stability time
Minimum
Maximum
Typical
Maximum
Maximum
Minimum
Typical
Maximum
Specified value
4.5 V DC
5.5 V DC
0.17 mA
0.3 mA
50 µA
0V
2.5 V
Vdd
Vdd
Iw
Iout
Vout
Minimum
Typical
Maximum
Typical
Maximum
Maximum
2.3 V
2.5 V
2.7 V
155 m Vp-p
300 m Vp-p
45 s
Voff
Vn
Twu
Measured conditions
Iout = 0
Steady-state output voltage
when not detecting
Note: To set to the same detection performance as the digital type, set the output voltage to the offset voltage (2.5V) ±0.45V (i.e. 2.95V or more and 2.05V or less).
[Timing chart]
1) Digital output
ON
Power supply
OFF
Detect
Detection state
Not
detect
ON
Sensor output
Remark:
Circuit stability time: 30s max.
While the circuitry is stabilizing after the power is turned on, the sensor output
is not fixed in the “on” state or “off” state. This is true regardless of whether or
not the sensor has detected anything.
OFF
Circuit stability time
2) Analog output
Vdd
Power supply
GND
Detect
Detection state
(Comparator
decision output)
Output waveform
V out
Not
detect
Body
movement
Vdd
Voff
Vh
Threshold voltage 1
(comparator)
Vn
GND
Vl
Circuit stability time
Threshold voltage 2
(comparator)
Remark:
Circuit stability time: 45s max.
While the circuitry is stabilizing after the power is turned on, the sensor output
is not fixed in the “on” state or “off” state. This is true regardless of whether or
not the sensor has detected anything.
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
MP Motion Sensor (AMN2, 3, 4)
DETECTION PERFORMANCE
1. Standard detection type
TOP VIEW
5m
16.404ft
SIDE VIEW
5m
16.404ft
X
50°
Y
41°
2.5m
8.202ft
2.5m
8.202ft
0°
0°
2.5m
8.202ft
2.5m
8.202ft
41°
50°
5m
16.404ft
5m
16.404ft
X-Y cross section
Y
3m
9.843ft
Detection zone
2
6.562
1
3.281
4m
3
13.123ft 9.843
2
6.562
1
3.281
1
3.281
2
6.562
(Max. 5.66m)
(Max. 18.570ft)
X
3
4m
9.843 13.123ft
1
3.281
2
6.562
Remarks:
1. The X-Y cross-sectional diagram shows the detection area.
2. The differences in the detection zone patterns are indicative of the projections of
the 16 lenses with single focal point and with five optical axes. An object whose
temperature differs from the background temperature and which crosses inside
the detection zone will be detected.
3m
9.843ft
(Max. 7.42m)
(Max. 24.344ft)
2. Slight motion detection type
X-Y cross section
Y
2.5m
8.202ft
Y
2.5m
8.202ft
46°
2
6.562
2
6.562
1.5
4.921
1.5
4.921
1
3.281
1
3.281
0.5
1.640
0.5
1.640
0
1m
3.281ft
2m
6.562ft
0°
–0.5
–1.640
–2.5m
–8.202ft
–2
–1.5
–1
–0.5
–6.562 –4.921 –3.281 –1.640
–0.5
–1.640
–1
–3.281
–1
–3.281
–1.5
–4.921
–1.5
–4.921
–2
–6.562
–2.5m
–8.202ft
Detection zone
0.5
1
1.5
2
1.640 3.281 4.921 6.562
X
2.5m
8.202ft
–2
–6.562
46°
1m
3.281ft
2m
6.562ft
–2.5m
–8.202ft
(Max. 5m dia.)
(Max. 16.404ft dia.)
Remarks:
1. The X-Y cross-sectional diagram shows the detection area.
2. The differences in the detection zone patterns are indicative of the projections of
the 26 lenses with single focal point and with three optical axes. An object whose
temperature differs from the background temperature and which crosses inside
the detection zone will be detected.
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
MP Motion Sensor (AMN2, 3, 4)
3. Spot detection type
2.5
8.202
X
2.5
8.202
1m
3.281ft
1.25
4.101
5m
16.404ft
2.5
8.202
0°
0
19°
2.5m
8.202ft
5m
16.404ft
2m
5.562ft
0.5
1.640
11°
2.5
8.202
5m
16.404ft
0°
1m
3.281ft
0.5
1.640
11°
1.25
4.101
1.25
4.101
2.5m
8.202ft
Y
Y
19°
1.25
4.101
0
X-Y cross section
SIDE VIEW
TOP VIEW
2m
5.562ft
0.5
1.640
X (Max. 1.4m)
1m (Max. 4.593ft)
3.281ft
0.5
1.640
1m
3.281ft
5m
16.404ft
(Max. 2m)
(Max. 6.562ft)
Remarks: 1. The X-Y cross-sectional diagram shows the detection area.
2. The differences in the detection zone patterns are indicative of the projections of the 6 lenses with single focal point and with two optical axes.
An object whose temperature differs from the background temperature and which crosses inside the detection zone will be detected.
4. 10m detection type
SIDE VIEW
TOP VIEW
X
10m
32.808ft
10m
32.808ft
Y
46.5°
5m
16.404ft
5m
16.404ft
5m
16.404ft
5m
16.404ft
55°
10m
32.808ft
10m
32.808ft
X-Y cross section
Detection zone
Y
(15.9m 52.165ft)
6m
19.685ft
4
13.123
2
6.562
2
6
4
10m
8
32.808ft 26.247 19.685 13.123 6.562
X
10m
8
6
4
2
6.562 13.123 19.685 26.247 32.808ft
2
6.562
4
13.123
Remarks:
1. The X-Y cross-sectional diagram shows the detection area.
2. The differences in the detection zone patterns are indicative of the projections of
the 20 lenses with single focal point and with five optical axes. An object whose
temperature differs from the background temperature and which crosses inside
the detection zone will be detected.
(12.3m 40.354ft)
6m
19.685ft
5. Notes regarding the detection zone
The detection zone has the polarity shown in the diagram on the
right. When targets enter both the + and – zones with the same
timing, the signals are cancelled each other, thus in this case
there is a possibility that the object cannot be detected at the
maximum specified detection distance.
Target
Detection zone
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
MP Motion Sensor (AMN2, 3, 4)
HOW TO USE
1. Wiring diagram
1) Digital output
2) Analog output
Sensor
Sensor
Vdd
Vdd
+
Load
GND
GND
+
Microcomputer,
A/D converter
etc.
Out
OP
AMP
Out
Iout: Max.100 µA
Vdd: Input power source (DC)
GND: GND
Out: Output (Comparator)
2. Timer circuit example
1) Digital output
Input voltage
10 µ
2) Analog output
5V
REG
+
0.1 µ
47 µ
+
(5VDC)
0.1 µ
Vdd
Input voltage
0.1 µ
10 µ
5V
REG
+
47 µ
(5VDC)
+
0.1 µ
0.1 µ
Vdd
0.1 µ
GND
GND
47k
Relay
10 µ
Connection
to motion
sensor
10k
0.1 µ
+
3 2 16
1
9
10
13 11
The transistor
turns on when
the sensor
detects
something
R
Select a transistor
to match the relay
3 2 16
9 1
10
13 11
The transistor
turns on when
the sensor
detects
something
C
Timer time = RXC
Note: This is the reference circuit which drives the MP motion sensor. Install a noise
filter for applications requiring enhanced detection reliability and noise
withstanding capability.
Differences in the specifications of electronic components to which the units
are connected sometimes affect their correct operation; please check the
units’ performance and reliability for each application.
3. Installation
Install the sensor so that people will be entering from the X or Y
direction shown below. If persons approch the sensor from the Z
direction, detection distance will be shortened.
0.1 µ
Window
comparator
C
8
Timer IC
Out
R
74HC
123 etc.15
GND
14
Connection
to motion
sensor
10k
0.1 µ
10 µ +
Out
0.1 µ
74HC
123 etc. 15
8
47k
Relay
Select a
transistor
to match
the relay
14
GND
Timer IC
Timer time = RXC
Note: This circuit is a sample of a drive circuit for the MP Motion Sensor. Its noise
resistance and long-term reliability are not considered or investigated.
To improve the detection reliability and noise resistance of the circuit, consider
adding a noise filter.
Matsushita Electric Works, Ltd. accepts no responsibility for damages
resulting from the use of this circuit.
X direction ❍
Y direction ❍
Z
Z direction ∆
X direction ❍
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
MP Motion Sensor (AMN2, 3, 4)
mm inch General tolerance ±0.5 ±.020
DIMENSIONS
1. Standard detection type
Recommended PC board pattern
10+0.2
0 dia.
.394 +.008
dia.
0
Sensing area
Note 2)
9.5 dia.
.374 dia.
Molding gate
Notes 3)
11.0
.433
14.5
11 .571
.433
0.45±0.05 dia.
.018±.002 dia.
4.5 .177
45°
11 dia.
.433 dia.
45°
GND
OUT
°
ia.
±0.1 d
5.08 ±.004 dia.
.200
3-0.6 +0
.1
3-.02 5+.0 dia.
6 0004
dia.
Notes: 1. In order to ensure proper detection, install it with the
lens exposed at least 3.5mm .138inch.
2. As for panel mounting hole, tapering or making a
large size hole should be done.
3. The height dimension does not include the
remaining molding gate.
P.C.D. 5.08±0.2 dia.
.200±.008 dia.
Vdd
45° ±4
3.5
.138
Note 1)
±4°
45°
2. Slight motion detection type
Recommended PC board pattern
12.4 +0.2
0 dia.
.488 +.008
dia.
0
Molding gate
12.8
.504
Note 3)
12.8
.504
8.9
.350
0.45±0.05 dia.
.018±.002 dia.
45°
45°
11 dia.
.433 dia.
GND
4°
3. Spot detection type
±4°
45°
4. 10m detection type
Recommended PC board pattern
9.4 +0.2
-0 dia.
.370 +.008
-0 dia.
17.9 -0+0.2 dia.
.705 +.008
dia.
-0
Note 1)
Note 2)
Note 2)
° 45°
45
11
.433
GND
° 45°
4.5
.177
0.45 dia.
±.002
.018 dia.
.
±0.1 dia
4
5.08 ±.00 dia.
.200
3-0.6 +0.1
5
3-.02 +.-000 dia.
6 -0 4
dia.
18.53
.730
.
±0.1 dia
4
5.08 ±.00 dia.
.200
3-0.6 +0.1
5
3-.02 +.-000 dia.
6 -0 4
dia.
8.6
.339
Sensing area
±0.05
4.5
.177
0.45 dia.
±.002
.018 dia.
±0.2
P.C.D. 5.08 dia.
±.008
.200 dia.
Vdd
Note 3)
45
±0.05
12.9
.508
17.4 dia.
.685 dia.
17.0 dia.
.670 dia.
Molding
gate
15.1
.594
OUT
Recommended PC board pattern
5.6
Molding gate
8.9 dia.
.350 dia.
ia.
±0.1 d
5.08 ±.004 dia.
.200
3-0.6 +0
.1
3-.02 5+.0 dia.
6 0004
dia.
Notes: 1. In order to ensure proper detection, install it with the
lens exposed at least 2.4mm .094inch.
2. As for panel mounting hole, tapering or making a
large size hole should be done.
3. The height dimension does not include the
remaining molding gate.
P.C.D. 5.08±0.2 dia.
.200±.008 dia.
Vdd
45° ±
2.4
.094
Note 1)
15.2
.598
4.5 .177
OUT
Sensing area
Note 2)
12.7 dia.
.500 dia.
11.9 dia.
.469 dia. 7.4 dia.
.291 dia.
11 dia.
.433 dia.
Note 1)
OUT
45° ±4°
GND
±4°
45°
±0.2
P.C.D. 5.08 dia.
±.008
.200 dia.
Vdd
Notes: 1. As for panel mounting hole, tapering or making a large
size hole should be done.
2. The height dimension does not include the remaining
molding gate.
45° ±4°
±4°
45°
Notes:
1. In order to ensure proper detection,
install it with the lens exposed at least
5.6mm .220inch.
2. As for panel mounting hole, tapering or
making a large size hole should be done.
3. The height dimension does not include the
remaining molding gate.
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
MP Motion Sensor (AMN2, 3, 4)
NOTES
3) The sensor may be damaged if it is
exposed to static with a voltage
exceeding ±200V. Therefore, do not
touch its terminals directly, and exercise
adequate care in the handling of the
sensor.
4) When the leads are to be soldered,
solder them by hand for less than 3
seconds at a temperature of less than
350°C 662°F at the tip of the soldering
iron. Avoid using a solder bath since this
will causing a deterioration in the
sensor’s performance.
5) Do not attempt to clean the sensor.
Cleaning fluid may enter inside the lens
area causing a deterioration in
performance.
6) When using the sensors with cables, it
is recommended that cables which are
shielded and as short as possible be
used in order to safeguard against the
effects of noise.
4. Ambient operating conditions
1) Temperature: Refer to the absolute
maximum ratings for the temperature of
each individual sensor.
2) Humidity: 15% to 85% RH (No freezing
nor condensation at low temperature)
3) Atmospheric pressure: 86 to 106 kPa
4) Because the humidity range differs
depending on the ambient temperature,
the humidity range indicated below
should be used. Continuous operation of
the switch is possible within this range,
but continuous use near the limit of the
range should be avoided.
This humidity range does not guarantee
permanent performance.
<MP Motion Sensor>
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1. Checkpoints relating to principle of
operation
MP motion sensors are passive infrared
sensors which detect changes in the
infrared rays. They may fail to detect
successfully if a heat source other than a
human being is detected or if there are
no temperature changes in or movement
of a heat source. Care must generally be
taken in the following cases. The
performance and reliability of the sensors
must be checked out under conditions of
actual use.
<1> Cases where a heat source other
than a human being is detected.
1) When a small animal enters the
detection range.
2) When the sensor is directly exposed to
sunlight, a vehicle’s headlights, an
incandescent light or some other source
of far infrared rays.
3) When the temperature inside the
detection range has changed suddenly
due to the entry of cold or warm air from
an air-conditioning or heating unit, water
vapor from a humidifier, etc.
<2> Cases where it is difficult to detect
the heat source
1) When an object made of glass, acrylic
or other subject which far infrared rays
have difficulty passing through is located
between the sensor and what is to be
detected.
2) When the heat source inside the
detection range hardly moves or when it
moves at high speed; for details on the
movement speed, refer to the section on
the performance ratings.
2. When the detection area becomes
larger
When the difference between the
ambient temperature and body
temperature is large (more than 20°C
68°F), detection may occur in isolated
areas outside the specified detection
range.
3. Other handling cautions
1) Be careful not to allow dust or dirt to
accumulate on the lens as this will
adversely affect the detection sensitivity.
2) The lens is made of a soft material
(polyethylene).
Avoid applying a load or impact since this
will deform or scratch the lens, making
proper operation impossible and causing
a deterioration in its performance.
Humidity, %R.H.
85
Tolerance range
(Avoid freezing when
used at temperatures
lower than 0°C 32°F)
15
–20
–4
(Avoid
condensation
when used at
temperatures
higher than 0°C
32°F)
0
60
+32
140
Temperature, °C °F
In general, degradation of electronic
devices accelerates when they are
operated under conditions of high
temperature or high humidity. Before use,
confirm the reliability of the sensors
under the expected operating conditions.
5) When the sensor (especially for ST
type) is used in noisy environments,
connect a capacitor (approx. 1µF) across
its power input terminals and sensor
output terminals.
6) The sensors do not have a water-proof
or dust-proof construction. Depending on
the ambient operating conditions, some
means of providing protection from water
and dust and preventing the formation of
ice and condensation must be provided
prior to using the sensors. If a sensor is
used with a cover installed, the initial
detection performance specifications
may not be able to be met. Confirm the
operation under the actual operating
conditions.
7) Take care to avoid exposing the
sensors to heat, vibration or impact since
malfunctioning may result.
5. Concerning external surge voltages
Since the internal circuitry may be
destroyed if an external surge voltages is
supplied, provide an element which will
absorb the surges. The levels of the
voltage surges which the sensor can
withstand is given below.
MP motion sensors: Within the supply
voltage given in the absolute maximum
ratings.
6. Concerning power supplysuperimposed noise
Use a regulated power supply as the
power supply. Otherwise, power supplysuperimposed noise may cause the
sensors to malfunction. The levels of
noise which the sensor can withstand is
given below.
MP motion sensors: ±20 V (50ns, 1µs
wide square waves)
7. Drop damage
If the sensor is dropped, damage can
occur resulting in incorrect operation. If
dropped, be sure to do a visual check of
the exterior for noticeable damage and
check the operation characteristics for
faulty operation.
8. Concerning the circuit sides
Since the circuit sides given in this
catalog are not protected in terms of
circuit design, check out the performance
and reliability of the circuits prior to using
the sensors.
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