Namco Controls Proximity Sensor General Product Line Information

General

Buying the Proper

Information

Not All Proximity Sensors
Are Created Equal...

Namco makes two grades of

proximity sensors:

• Tough - Our “Standard
Industrial Grade” line

• Incredibly Tough - Our WFI

Proximity Sensors

Automotive-Grade Line

Most industrial applications
require a pretty rugged sensor; for
example, a packaging machine or
material handling application. For
these jobs, Namco’s Standard
Industrial Grade products are well­suited. However, there are some
applications where nothing but the
most durable will do. For example, if
you have lots of welding activity
nearby, both physical and electronic
characteristics must be upgraded.

To make sure you match your
sensor selection to your application,
call 1-800-NAMTECH.

Proximity Sensor

Liquid
polyurethane used
as encapsulant.

Value priced.

No weld field immunity.

Namco Standard

Industrial Grade

Sensor

Single LED - on with
target present.

Thermoplastic
sensing face.

88

Housings of either thermoplastic or
chrome plated brass.

Protected by the

Lifetime Replacement Program

Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: [phone]

Current-limit type short circuit
protection on some models (as
indicated in selector chart).

Namco

W eld Field Immune (WFI)

Sensor

Circuitry to accept a broad
range of input voltages.
Predictable, consistent
electrical performance
independent of input
impedance and voltage.

Namco WFI sensors are
designed to operate within
1" of a resistance welding
electrode carrying 20,000
Amperes RMS (45,000
Amperes peak) without
changing state. All Namco
WFI sensors pass the
NEMA noise tests and
exhibit no false turn-ons
from walkie-talkies or other
in-plant sources of RF
Noise.

Housing must withstand
300 pound step test and/or
250 pound cantilevered load
test per UL 508.

Weld-splatter resistant
housings designed for use
in welding environments.

Every Namco WFI sensor:

1) goes through 52
automatic testing steps;

2) is thermocycled
between -20°C to +
70°C;

3) is 100% functionally
tested.

Special epoxy encapsulants
are mechanically strong
while maintaining electrical
insulative properties.

Wide variety of connector
and cable models.

Two LED’s: Green for
“target sensed” and red for
“power available” (AC/DC
versions); Green for “power
available” and amber for
“target sensed”
(DC versions).

Meets UL 508
requirements. Connectors,
cables, and sensor tested
for strength, flammability,
insulation, torque, and pull
out.

Standard latching short
circuit protection in Namco
sensors is patented fold­back regulator type; fast­acting and requires removal
of power to prevent
automatic restart.
Prolonged shorts will not
damage sensor electronics.

Non-Latching.

Molded thermoset plastics for
rectangular and extended range,
hard coat for tubulars.

Proximity Sensors

Protected by the

Lifetime Replacement Program

2013 West Meeting Street • Lancaster, SC 29720

1-803-286-8491 • FAX: [phone]

www.namcocontrols.com

For technical assistance, call 1-800-NAMTECH

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