D-43
E2A3
E2
A
3
Safety Precautions
Precautions for Safe Use
Power Supply
Do not impose an excessive voltage on the E2A3, otherwise it may
be damaged. Do not impose AC current (100 to 240 VAC) on any DC
Model, otherwise it may be damaged.
Load Short-circuit
Do not short-circuit the load, or the E2A3 may be damaged.
The E2A3’s short-circuit protection function will be valid if the polarity
of the supply voltage is correct and within the rated voltage range.
Wiring
Be sure to wire the E2A3 and load correctly, otherwise it may be
damaged.
Connection with No Load
Be sure to insert a load when wiring. Make sure to connect a proper
load to the E2A3 during operation, otherwise it may damage internal
elements.
Do not expose the product to flammable or explo-
sive gases.
Do not disassemble, repair, or modify the product.
Precautions for Correct Use
Designing
Power Reset Time
The Proximity Sensor is ready to operate within 100 ms after power
is supplied. If separate power supplies are connected to the Proxim-
ity Sensor and load, be sure to supply power to the Proximity Sensor
before supplying power to the load.
Effects of Surrounding Metal
When mounting the E2A3 within a metal panel, ensure that the
clearances given in the following tables are maintained.
(Unit: mm)
(Unit: mm)
* Using the nuts provided with the E2A3 allows mounting in the way shown be-
low.
Power OFF
The Proximity Sensor may output a pulse signal when it is turned
OFF. Therefore, it is recommended that the load be turned OFF
before turning OFF the Proximity Sensor.
Power Supply Transformer
When using a DC power supply, make sure that the DC power sup-
ply has an insulated transformer. Do not use a DC power supply with
an auto-transformer.
Mutual Interference
When installing two or more Sensors face-to-face or side-by-side,
ensure that the minimum distances given in the following table are
maintained.
(Unit: mm)
This product is not designed or rated for ensuring safety
of persons.
Do not it for such purposes.
WARNING
Model
Dimension
M8
M12
Material of
surrounding
metal
Ferrous
metal
Non-
ferrous
metal
Ferrous
metal
Non-
ferrous
metal
E2A3
Shielded
l
0.5 (*)
2 (*)
2 (*)
1 (*)
m
9
18
d
24
36
D
0.5
2
2
1
n
24
36
Model
Dimension
M18
M30
Material of
surrounding
metal
Ferrous
metal
Non-
ferrous
metal
Ferrous
metal
Non-
ferrous
metal
E2A3
Shielded
l
4 (*)
2.5 (*)
6 (*)
4 (*)
m
33
60
d
54
90
D
4
2.5
6
4
n
54
90
l
m
n
m
D
d dia.
l
l
= 0 mm
Nut provided with E2A3
Type
Dimension
M8
M12
M18
M30
Shielded
A
25
35
70
110
B
20
25
45
70
A
A
B
