A-12
Standard Photoelectric Sensors
Do not install the Sensor in the following locations.
(1) Locations subject to direct sunlight
(2) Locations subject to condensation due to high humidity
(3) Locations subject to corrosive gas
(4) Locations where the Sensor may receive direct vibration or
shock
Connecting and Mounting
(1) The maximum power supply voltage is 30 VDC. Before turning
the power ON, make sure that the power supply voltage does
not exceed the maximum voltage.
(2) Laying Sensor wiring in the same conduit or duct as high-volt-
age wires or power lines may result in malfunction or damage
due to induction. As a general rule, wire the Sensor in a sepa-
rate conduit or use shielded cable.
(3) Use an extension cable with a minimum thickness of 0.3 mm
2
and less than 100 m long.
(4) Do not pull on the cable with excessive force.
(5) Pounding the Photoelectric Sensor with a hammer or other
tool during mounting will impair water resistance. Also, use M3
screws.
(6) Mount the Sensor either using the bracket (sold separately) or
on a flat surface.
(7) Be sure to turn OFF the power supply before inserting or re-
moving the connector.
Cleaning
Never use thinner or other solvents. Otherwise, the Sensor sur-
face may be dissolved.
Power Supply
If a commercial switching regulator is used, ground the FG (frame
ground) terminal.
Power Supply Reset Time
The Sensor will be able to detect objects 100 ms after the power
supply is tuned ON. Start using the Sensor 100 ms or more after
turning ON the power supply. If the load and the Sensor are con-
nected to separate power supplies, be sure to turn ON the Sensor
first.
Turning OFF the Power Supply
Output pulses may be generated even when the power supply is
OFF. Therefore, it is recommended to first turn OFF the power
supply for the load or the load line.
Load Short-circuit Protection
This Sensor is equipped with load short-circuit protection, but be
sure to not short circuit the load. Be sure to not use an output cur-
rent flow that exceeds the rated current. If a load short circuit oc-
curs, the output will turn OFF, so check the wiring before turning
ON the power supply again. The short-circuit protection circuit will
be reset. The load shortcircuit protection will operate when the
current flow reaches 1.8 times the rated load current. When using
an L load, use an inrush current of 1.8 times the rated load current
or higher.
Water Resistance
Do not use the Sensor in water, rainfall, or outdoors.
When disposing of the Sensor, treat it as industrial waste.
Mounting Diagram
Resistance to Detergents, Disinfectants, and Chemicals
• Performance is assured for typical detergents and disinfectants,
but performance may not be maintained for some detergents
and disinfectants. Refer to the following table when using these
agents.
• The E3ZM passed testing for resistance to detergents and dis-
infectants performed using the items in the following table. Refer
to this table when considering use of detergents and disinfec-
tants.
Note: The Sensor was immersed in the chemicals, detergents, and disinfec-
tants listed above at the temperatures in the table for 240 hours and then
passed an insulation resistance of 100 M min.
Precautions for Safe Use
Category
Product name
Concen-
tration
Temper-
ature
Time
Chemical
Sodium hydroxide (NaOH)
1.5 %
70 °C
240 h
Potassium hydroxide (KOH) 1.5 %
70 °C
240 h
Phosphoric acid (H
3
PO
4
)
2.5 %
70 °C
240 h
Sodium hypochlorite (Na-
CIO)
0.3 %
25 °C
240 h
Hydrogen peroxide (H
2
O
2
)
6.5 %
25 °C
240 h
Alkaline foam
detergent
P3-topax-66s
(Manufactured by Ecolab)
3.0 %
70 °C
240 h
Acidic foam
detergent
P3-topax-56
(Manufactured by Ecolab)
5.0 %
70 °C
240 h
Disinfectant
P3-oxonia active 90
(Manufactured by Ecolab)
1.0 %
25 °C
240 h
TEK121
(Manufactured by ABC
Compounding)
1.1 %
25 °C
240 h
Mounting Bracket
(sold separately)
E39-L104
Use a mounting torque of
0.5 N·m max.
