Datasheet

E3ZM
14
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-voltage
wires or power lines may result in malfunction or damage due to
induction. As a general rule, wire the Sensor in a separate 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 removing
the connector.
Cleaning
Never use thinner or other solvents. Otherwise, the Sensor surface
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
connected 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 current flow
that exceeds the rated current. If a load short circuit occurs, 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 short-
circuit protection will operate when the current flow reaches 1.8 times
the rated load current. When using a C 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
disinfectants performed using the items in the following table. Refer
to this table when considering use of detergents and disinfectants.
Note: The Sensor was immersed in the chemicals, detergents, and
disinfectants listed above at the temperatures in the table for 240 hours
and then passed an insulation resistance of 100 MΩ min.
Precautions for Correct Use
Category Product name
Concen-
tration
Temper-
ature
Time
Chemical
Sodium hydroxide (NaOH) 1.5% 70°C 240h
Potassium hydroxide (KOH) 1.5% 70°C 240h
Phosphoric acid (H
3PO4) 2.5% 70°C 240h
Sodium hypochlorite (NaCIO) 0.3% 25°C 240h
Hydrogen peroxide (H
2O2) 6.5% 25°C 240h
Alkaline foam
detergent
P3-topax-66s
(Manufactured by Ecolab)
3.0% 70°C 240h
Acidic foam
detergent
P3-topax-56
(Manufactured by Ecolab)
5.0% 70°C 240h
Disinfectant
P3-oxonia active 90
(Manufactured by Ecolab)
1.0% 25°C 240h
TEK121
(Manufactured by ABC Com-
pounding)
1.1% 25°C 240h
Mounting Bracket
(sold separately)
E39-L104
Use a mounting torque of
0.5 N·m max.