AMN22112 datasheet(8/8 Pages) PANASONIC

Part #	AMN22112

Description	High-sensitive human detection sensor with built-in amp.

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Manufacturer	PANASONIC [Panasonic Semiconductor]

Direct Link	http://www.panasonic.com/industrial/

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Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/

PIR Motion Sensor (EKMB, EKMC, AMN2, 3)

ASCTB240E 201208-T

MOUNTING DIRECTION

NOTES

For Cautions for Use.

Y direction

X direction

Z direction

Y

X

Z

1) Detection area

As shown on the diagram, the

detection zone is polarized.

If a target enters the

detection zones

+ and − at

the same time, the signals

are respectively cancelled

and detection could become

impossible at maximum

detection range.

Detection

zone

Target

2) Direction

As detailed on the

diagram, please install

the sensor so that the

expected trespassing

direction corresponds to the

axis X or axis Y.

In some cases, going back and

forth towards the sensor (parallel

movement to the axis Z), may not be detected.

1. Checkpoints relating to principal of

operation

PaPIRs is a pyroelectric infrared sensor

that detect variations in infrared rays.

However, it may not detect in the

following case: lack of movement, No

temperature change in the heat source.

Beside, it could also detect the presence

of heat sources other than a human body.

Efﬁciency and reliability of the system

may vary depending actual operating

conditions:

1) Detecting heat sources other than the

human body, such as

(1) Small animals entering the detection

area.

(2) When a heat source for example

sunlight, incandescent light, car

headlights etc, or strong light beam hit

the sensor regardless inside or outside

the detection area.

(3) Sudden temperature change inside or

around the detection area caused by hot

or cold wind from HVAC, or vapor from

the humidiﬁer, etc.

2) Difﬁculty in sensing the heat source

(1) Glass, acrylic or similar materials

standing between the target and the

sensor may not allow a correct

transmission of infrared rays.

(2) Non-movement or quick movements

of the heat source inside the detection

area. (Please refer to the section on the

detection performance ratings for details

about movement speed.)

3) Expansion of the detection area

In case of considerable difference in the

ambient temperature and the human

body temperature, detection area may be

wider apart from the conﬁgured detection

area.

4) Malfunction/Detection error

Unnecessary detection signal might be

outputted, on rare occasions, come from

sudden outbreak output due to the nature

of pyroelectric element. When the

application does not accept such

conditions strictly, please implement the

countermeasure by introducing pulse

count circuit etc.

2. Optimal operating environment

conditions

1) Temperature: Refer to the absolute

maximum rating.

2) Humidity degree: 15 to 85%Rh (Avoid

condensation or freezing of this product)

3) Pressure: 86 to 106KPa

4) Overheating, oscillations, shocks can

cause the sensor to malfunction.

5) This sensor is not waterproof or

dustproof. Avoid use in environments

subject to excessive moisture,

condensation, frost, containing salt air or

dust.

6) Avoid use in environments with

corrosive gases.

3. Handling cautions

1) Do not solder with a soldering iron

above 350

°C 662°F, or for more than 3

seconds. This sensor should be hand

soldered.

2) To maintain stability of the product,

always mount on a printed circuit board.

3) Do not use liquids to wash the sensor.

If washing ﬂuid gets through the lens, it

can reduce performance.

4) Do not use a sensor after it fell on the

ground.

5) The sensor may be damaged by

±200

volts of static electricity. Avoid direct hand

contact with the pins and be very careful

when operating the product.

6) When wiring the product, always use

shielded cables and minimize the wiring

length to prevent noise disturbances.

7) The inner circuit board could be

destroyed by a voltage surge.

Use of surge absorption elements is

highly recommended.

Surge resistance: below the power

supply voltage value indicated in the

maximum rated values section.

8) Please use a stabilized power supply.

Power supply noise can cause operating

errors.

Noise resistance:

±20V or less (Square

waves with a width of 50ns or 1

µs)

To reduce the effect of power supply

noise, install a capacitor on the sensor’s

power supply pin.

9) Operating errors can be caused by

noise from static electricity, lightning, cell

phone, amateur radio, broadcasting

ofﬁces etc...

10) Detection performance can be

reduced by dirt on the lens.

11) The lens is made of soft materials

(Polyethylene). Please avoid adding

weight or impacts that might change its

shape, causing operating errors or

reduce performance.

12) Operating “temperatures” and

“humidity level” are suggested to prolong

usage. However, they do not guarantee

durability or environmental resistance.

Generally, high temperatures or high

humidity levels will accelerate the

deterioration of electrical components.

Please consider both the planned usage

and environment to determine the

expected reliability and length of life of

the product.

13) Do not attempt to clean this product

with any detergent or solvent, such as

benzene or alcohol, as these can cause

shape or color alterations.

14) Avoid storage in high, low

temperature or liquid environments.

As well, avoid storage in environments

containing corrosive gas, dust, salty air

etc. It could cause performance

deterioration and the sensor’s main part

or the metallic connectors could be

damaged.

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