AMN42121 Panasonic Electric Works, AMN42121 Datasheet - Page 35

• Manufacturer Part Number: AMN42121
• Description: SENSOR MOTION DETECT DIG BLK
• Manufacturer: Panasonic Electric Works
• Series: NaPiOn™r

Specifications of AMN42121

• Sensing Distance: 6.56' (2m)
• Sensor Type: Passive Motion
• Sensing Object: *
• Response Frequency: *
• Material - Body: *
• Shielding: *
• Voltage - Supply: 2.2 V ~ 3 V
• Output Type: Digital
• Terminal Type: PC Pin
• Package / Case: Radial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 255-1809

20
A
Q
When you say "a temperature difference
between the object and the background of 4°C
or higher", what does "background" mean?
The background is the temperature of the environment surrounding (but not
including) the object to be detected, such as the ground, walls, and ceiling.
When a person enters the sensor's detection area, the quantity of infrared
radiation incident on the sensor changes by an amount equivalent to the
temperature difference between the person and the background. The MP
motion sensor ‘NaPiOn’ detects a person by detecting this change in inci-
dent infrared radiation. In other words, the sensor operates in response to
the difference in temperature between the human body, a source of heat,
and the background such as the floor and walls.
Reference date
60
50
40
30
20
10
0
0
5
10
Background
15
Wearing long-sleeve work clothes
Ambient temperature (°C)
20
25
30
35
40
45
50
Detection
55
Note: Temperature difference with respect
to background
Thigh
Chest
Hair
Face
Background
Q21
Q37
Q43
See here as well!
Q44
Q45