Omron E3C-LDA Series Manual page 27

Precautions for Safe Use
The following precautions must be observed to ensure safe operation
of the Sensor Head.
1. Installation Environment
• Do not use the Sensor Head in an environment where explosive or
flammable gas is present.
• To secure the safety of operation and maintenance, do not install
the Sensor Head close to high-voltage devices or power devices.
2. Power Supply and Wiring
• Always use an E3NC-LA@@, E3NC-LA0, E3NC-SA@@ or E3NC-
SA0 Amplifier Unit. If a different Amplifier Unit is used, damage or
fire may occur.
• If you short the cable, reconnect it as specified. If the connections
are not correct, damage or fire may occur.
• High-voltage lines and power lines must be wired separately from
the Sensor Head. Wiring them together or placing them in the
same duct may cause induction, resulting in malfunction or
damage.
• Always turn OFF the power supply before connecting or
disconnecting the connectors.
3. Installation
• Use screws for installation and tighten the screws securely, but do
not exceed the specified tightening torque.
Specified torque (M3): 0.5 N·m
4. Others
• Never disassemble (including removing labels), repair, modify,
deform by pressure, or incinerate the Sensor Head. Do not turn the
adjuster on the E3NC-LH02 with a force that is greater than 40
mN·m. Damage or fire may occur.
• Dispose of the Sensor Head as industrial waste.
• If you notice any abnormalities, immediately stop using the Sensor
Head, turn OFF the power supply, and contact your OMRON
representative.
5. Conditions of UL
(Applicable Models: E3NC-LH01/LH02 Only)
• The E3NC-LH series sensor head accessories shall be used with
the E3NC-LA amplifiers.
These amplifiers and sensor head accessories shall be installed
within a suitable enclosure where all components, including cords
and connectors, shall be entirely contained within the same
enclosure.
(Applicable Models: E3NC-SH100/SH250 Only)
• The E3NC-SH series sensor head accessories shall be used with
the E3NC-SA amplifiers.
These amplifiers and sensor head accessories shall be installed
within a suitable enclosure where all components, including cords
and connectors, shall be entirely contained within the same
enclosure.
6. Shortening the connection cable for use
(Applicable Models: E3NC-LH01/LH02/SH100/SH250 Only)
(• The shortened cable has not been evaluated by UL.)
Precautions for Correct Use
Observe the following precautions to prevent failure to operate,
malfunctions, or undesirable effects on Sensor Head performance.
1. Installation Environment
Do not install the Sensor Head in locations subject to the following
conditions:
• Ambient temperatures outside of the rated range
• Condensation caused by rapid changes in temperature
• Relative humidity that is not between 35% and 85%
• Corrosive or flammable gas
• Dust, salt, or iron particles
• Direct vibration or shock
• Strong external light interference (such as other laser beams or
electric arc-welding machines)
• Direct sunlight or near heaters
• Water, oil, or chemical fumes or spray
• Strong magnetic or electric fields
2. Warming Up
• The circuits will be unstable just after the power supply is turned
ON, so measurement values may fluctuate gradually.
• For accurate measurements, allow the product to stand for at least
10 minutes after turning ON the power supply before use. (E3NC-
S Series)
3. Maintenance and Inspection
• Always turn OFF the power supply before adjusting or connecting/
disconnecting the Sensor Head.
• Do not use thinner, benzene, acetone, or kerosene to clean the
Sensor Head.
• If large dust particles or dirt adheres to the filter on the front of the
Sensor Head, use a blower brush (such as one used to clean
camera lenses) to blow it off. Do not blow the dust particles or dirt
with your mouth. To remove dust particles or dirt, wipe it off gently
with a soft cloth (such as one for cleaning lenses) moistened with
a small amount of alcohol. Do not wipe it off with excessive force.
Scratches on the filter may cause errors.
4. Sensing Object
• The Sensor Head cannot accurately measure objects with the
following materials and shapes: Transparent objects (with the
E3NC-LH03, objects that are extremely transparent), objects with
an extremely low reflection ratio, objects smaller than the spot
diameter, objects with a large curvature, excessively inclined
objects, etc. Also, for long-distance detection, the Sensor may
falsely operate if a white object approaches near the Sensor Head
(E3NC-LH03).
5. Do not use the Sensor in water, rainfall, or outdoors.
6. A ferrite core is attached to the Sensor Head end of the cable
connected to the E3NC-LH03 5M. Do not remove the ferrite core
or change its position. Also, do not bend the cable within 12 mm of
each end of the ferrite core. Doing so may damage the cable.
Attaching a Reflector
Mount the Reflector as shown in (Correct) below. Errors will be
generated if you mount it at the angle shown in (Incorrect). Always
install the Reflector at the same angle as the Sensor Head if the head
is not mounted vertically or horizontally.
Common for all models
(Correct) (Correct) (Incorrect)
Sheet products (E39-RS10/E39-RS11) are peel-off stickers. Peel off
the release paper and apply the sheet to a flat surface for installation.
If there are any dirt and dust on the installation surface, a reduction in
adhesion and deflection of a sheet may occur, resulting in malfunction.
Note: Beam is irradiated on the glossy surface.
Attaching a Lens Attachment (E39-P51 or E39-P52)
1. Check the widths of the slots in the Sensor and the widths of the
tabs on the Lens Attachment and attach the Lens Attachment as
shown below. (The Lens Attachment must be in the correct
orientation, so the widths of the tabs on the Lens Attachment are
different on the top and bottom.)
2. After you attach the Lens Attachment, make sure that the tabs are
completely engaged in the slots in the Sensor.
1.
E3NC
(Incorrect)
2.
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