E3T-SL13 Datasheet, PDF (16/16 Pages) Omron Electronics LLC – Subminiature Photoelectric Sensor

E3T
E3T
Precautions
! _Caution
Avoid damage to the E3T: NEVER apply AC power to the E3T.
J AVOID DAMAGE TO THE E3T
• Do not exceed the rated voltage on the E3T.
• Do not short-circuit the load connected to the E3T.
• When supplying power to the E3T, make sure that the
polarity of the power is correct.
J OPERATING ENVIRONMENT
To avoid malfunction, DO NOT install the E3T in the following
environments:
• Locations where the E3T is exposed to intense sunlight.
• Locations with high humidity and where condensation may
result.
• Locations with corrosive gas.
• Locations with vibration or shock affecting the E3T.
J HIGH-TENSION LINES
To avoid Sensor damage or malfunctioning due to induction
noise, do not place the power supply lines of the Photoelectric
Sensor within the same conduit as power lines or high-tension
lines.
J CABLE
The cable can be extended up to 100 m provided that cable
thickness does not exceed the 0.3 mm² maximum.
J POWER SUPPLIES
If a switching regulator is connected to the E3T, you must ground
the FG (frame ground) and G (ground) terminals, or the switching
noise of the switching regulator may cause the E3T to
malfunction.
J WATER RESISTANCE
• Do not use the E3T underwater, outdoors, or in the rain.
• Use M2 screws and washers to mount the E3T. When
mounting the E3T, NEVER strike the E3T with a hammer, or
the E3T will lose its watertight properties.
J LOAD SHORT-CIRCUIT PROTECTION
The E3T incorporates a load short-circuit protection function. If
the load short-circuits, the output of the E3T will be turned OFF.
Recheck the wiring and turn on the E3T again to reset the load
short-circuit protection function. The load short-circuit protection
function will work if there is a current flow that is 2.4 times larger
than the rated load current.
When using an inductance load, be sure that the inrush current
will not exceed 2.4 times larger than the rated current.
J CLEANING
DO NOT apply paint thinner when cleaning the E3T. Paint thinner
will damage the casing of the E3T.
J INDICATORS
The following graphs indicate the status of each operation level.
Be sure to use the E3T within the stable operating range.
Stability
indicator
(green)
Operation indicator (orange)
E3T-jjj1
E3T-jjj3
E3T-jjj2
E3T-jjj4
Stable
operation
range
Unstable
operation
range
Stable
operation
range
Operation
level x 1.2
Operation
level
Operation
level x 0.8
ON
OFF
ON
ON
OFF
OFF
ON
Note:
When the E3T’s operation level is set to the stable
operation range, the E3T will be in its most reliable
operation without being influenced by temperature,
voltage fluctuation, dust, or mounting changes.
J TURNING ON POWER SUPPLY
• The E3T will be ready for sensing 100 ms after the power is
turned ON.
• If the E3T is connected to a power source different from one
for loads, be sure to turn ON the power supply to the E3T
first.
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
R
OMRON ELECTRONICS LLC
One East Commerce Drive
Schaumburg, IL 60173
1-800-55-OMRON
Cat. No. E262-E3-3
1/02
OMRON ON--LINE
Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V8
416-286-6465
Specifications subject to change without notice.
Printed in U.S.A.