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AC 2 Wire Proximity Switches

AC 2 Wire Proximity Switches
AC 2 Wire Proximity Switches
Product Code : AC 2 Wire Proximity
Brand Name : PARAS
Product Description
INDUCTIVE PROXIMITY SWITCHES (Barrel Shaped) - AC TYPE

Technical Specifications

Size MM
M-12x70
M-14x70
M-16x70
M-18x70
M-22x65
M-25x65
M-30x65
M-36x65
M-50x65
Operating
Voltage(VAC)

90-250
90-250
90-250
90-250
90-250
90-250
90-250
90-250
90-250
Max.Load
Current (m Amp.)

200
200
200
300
300
300
300
300
300
Sen.Dis. FM
(mm) NFM

2.0
4.0
2.5
5.0
3.0
6.0
5.0
8.0
6.0
9.0
7.0
10.0
10.0
15.0
12.0
18.0
20.0
25.0
No.Load Current
(m.Amp)

12
12
12
12
12
12
12
12
12
Voltage Drop
At Full Load

>15
>15
>15
>15
>15
>15
>15
>15
>15
Position Indication
LED
LED
LED
LED
LED
LED
LED
LED
LED
Cable Length (mm)
2000
2000
2000
2000
2000
2000
2000
2000
2000
Housing Material
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Brass
Mechanical
Dimensions

(Refer Fig A)
A
B
C
D
E
50
5.5
20
12
04
50
5.6
20
12
04
45
6.5
20
16
04
50
09
20
18
04
45
9.5
20
22
04
45
12
20
25
05
45
15
20
30
05
45
17
20
36
05
45
17
20
50
05

 WORKING PRINCIPAL

AN INDUCTIVE ALTERNATING r.f. FIELD IS DEVELOPED AT THE FRONT OF THE SENSING SURFACE OF THE PROXIMITY SWITCH. THIS FIELD IS GENERATED BY THE RESONANT CIRCUIT COIL OF THE OSCILLATOR.                      

ENERGY IS ABSORBED WHEN A METAL PIECE IS BROUGHT INTO THE r.f. FIELD NEAR THE SENSING SURFACE, CAUSING OSCILLATION TO STOP. HANCE THE DEMODULATED VOLTAGE FEEDING THE TRIGGER DISAPEARS.

FOR DC SWITCHES

THE TRIGGER OPERATES RAPIDLY WHEN OSCILLATION STOPS AND THIS TRIGGER SWITCHES THE OUTPUT TRANSISTER, WHICH CAN BE EITHER NPN OR PNP TO DRIVE AN ELECTRONIC CIRCUIT OR RELAY.

FOR AC SWITCHES

A THYRISTOR IS TRIGGERED WHEN OSCILLATION STOPS DUE TO THE PRESENCE OF METAL . THIS THYRISTOR IS CONNECTED IN SERIES WITH A BRIDGE AND THIS SERIES COMBINATION IS CONNECTED TO THE AC LOAD.

ADVANTAGES OF PROXIMITY SWITCHES

THESE SWITCHES CAN BE USED ANYWHERE WHERE EXTREME CONDITIONS EXIST, e.g.

1         WITH LUBRICANTS AND CUTTING OILS

2         UNDER VIBRATION

3         ENVIRONMENTS WHERE WATER AND STEAM ARE PRESENT

4         DUSTY ENVIRONMENTS, etc.

APPLICATIONS

INDUCTIVE PROXIMITY SWITCHES OR SENSORS ARE PRIMARILY USED WHEN THE OBJECT TO BE IS METALLIC, THAT IS INDUCTIVE PROXIMITY SWITCHES ARE USED TO DETECT THE POSITION OF METALS (ANY TYPE).  SOME APPLICATIONS OF INDUCTIVE PROXIMITY SWITCHES ARE –MACHINE TOOLS, TEXTILE,  SUGAR, CEMENT, AUTOMOBILE INDUSTRIES AND MANY MORE.


PARASNATH ELECTRONICS PVT. LTD.

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