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: 1-800-678-6263
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: 1-800-678-6263
www.namcocontrols.com
For technical assistance, call 1-800-NAMTECH
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