Datasheet

E3ZM-B
11
Do not use the Sensor in any atmosphere or environment that
exceeds the ratings.
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 (order
separately) or on a flat surface.
(7) Be sure to turn OFF the power supply before inserting or
removing the connector.
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 capacitive load,
use an inrush current of 1.8 times the rated load current or
lower.
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
• The Sensor will maintain sufficient performance in typical
detergents and disinfectants, but performance may suffer in
some types of detergents, disinfectants, and chemicals.
Refer to the following table prior to use.
• The E3ZM has passed detergent and disinfectant
resistance testing for the substances listed in the following
table. Use this table as a guide when considering
detergents and disinfectants.
Note: The Sensor was immersed in the above chemicals, detergents, and
disinfectants for 240 h at the temperatures given, and then passed an
insulation resistance test at 100 MΩ min.
Precautions for Correct Use
Type Product name
Con-
centra-
tion
Tem-
pera-
ture
Time
Chemicals
Sodium hydroxide, NaOH 1.5% 70°C240 h
Potassium hydroxide, KOH 1.5% 70°C240 h
Phosphoric acid, H
3PO4 2.5% 70°C240 h
Sodium hypochlorite, NaClO 0.3% 25°C240 h
Hydrogen peroxide, H
2O2 6.5% 25°C240 h
Alkaline foaming
cleansers
Topax 66s (Ecolab) 3.0% 70°C240 h
Acidic foaming
cleansers
Topax 56 (Ecolab) 5.0% 70°C240 h
Disinfectants
Oxonia Active 90 (Ecolab) 1.0% 25°C240 h
TEK121 (ABC Compounding) 1.1% 25°C240 h
Mounting Bracket
(order separately)
E39-L104
Use a mounting torque of
0.5 N·m max.