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セキュリティセンサー Autonics PRA 12-2A SeriesのPDF 製品マニュアルをオンラインで閲覧またはダウンロードできます。Autonics PRA 12-2A Series 6 ページ。 Cylindrical inductive proximity sensors
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Cut-out Dimensions
• Unit: mm, For the detailed drawings, follow the Autonics website.
H
Mounting
hole (H)
TAP
TAP
Ø A
B
Ø A
B
Setting Distance Formula
Detecting distance can be changed by
the shape, size or material of the target.
For stable sensing, install the unit within
the 70% of sensing distance.
Setting distance (Sa)
= Sensing distance (Sn) × 70%
Mutual-interference & Influence by Surrounding Metals
■ Mutual-interference
When plural proximity sensors are mounted in a close row, malfunction of sensor may
be caused due to mutual interference.
Therefore, be sure to provide a minimum distance between the two sensors, as below
table.
[Face to Face]
A
■ Influence by surrounding metals
When sensors are mounted on metallic panel, it must be prevented sensors from being
affected by any metallic object except target. Therefore, be sure to provide a minimum
distance as below chart.
ℓ
Sensing
Ø 12 mm
side
Flush
Non-flush
Item
A
12
24
B
24
36
ℓ
0
11
Ø d
12
36
m
6
12
n
18
36
Tightening Torque
Use the provided washer to tighten the nuts.
The tightening torque of the nut varies with the distance from the fore-end. [Figure 1]
If the nut tip is located at the front of the product, apply the front tightening torque.
the allowable tightening torque table is for inserting the washer as [Figure 2].
[Figure 1]
Nut tip
Fore-end
Front
Rear
Sensing
Ø 12 mm
side
Flush
Non-flush
Strength
Front size
13 mm
7 mm
Front torque 6.37 N m
Rear torque 11.76 N m
Ø 12 mm Ø 18 mm Ø 30 mm
Ø 12.5
Ø 18.5
Ø 30.5
+0.5
+0.5
+0.5
0
0
M12×1
M18×1
M30×1.5
Ø 12 mm Ø 18 mm Ø 30 mm
21
29
42
17
24
35
Sensing target
Sensing target
: Up-Down movement
: Right-Left movement
Sn
Sa
[Parallel]
B
m
Ø d
n
ℓ
ℓ
Ø 18 mm
Ø 30 mm
Flush
Non-flush
Flush
30
48
60
36
54
60
0
14
0
18
54
30
15
24
30
27
54
45
[Figure 2]
Mounting side
Washer
Ø 18 mm
Ø 30 mm
Flush
Non-flush
Flush
-
-
26 mm
14.7 N m
49 N m
14.7 N m
78.4 N m
Sensing Distance Feature Data by Target Material and Size
Sensing distance (X)
■ Flush + General type
0
• Ø 12 mm
2.50
2.00
1.50
1.00
0.50
Sn
Sa
0.00
4
8
10 12 15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
• Ø 18 mm
6.00
5.00
4.00
3.00
2.00
1.00
0.00
4
8
10 12 15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
• Ø 30 mm
12.00
10.00
8.00
6.00
4.00
(unit: mm)
2.00
Non-flush
0.00
90
4
8
10 12 15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
90
15
90
45
90
Non-flush
12 mm
One side length of sensing target d (mm)
One side length of sensing target d (mm)
One side length of sensing target d (mm)
Iron (SS401)
SUS364
Brass (C3601)
Aluminum (ALS052)
Copper (C1100)
Iron (SS401)
SUS364
Brass (C3601)
Aluminum (ALS052)
Copper (C1100)
Iron (SS401)
SUS364
Brass (C3601)
Aluminum (ALS052)
Copper (C1100)