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LongFellow® II Linear Position Transducer, 228,6 mm [9.0 in] Electrical Travel, Binder Series 681 termination, Item Number 9810902
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Description
The LongFellow� II incorporates design innovations to increase transducer life and provide greater resistance to vibration, while providing a smooth high-quality signal for demanding factory control applications. It has a solid stainless steel shaft, longer front-end bearings, a vibration-free damped element, a spring-loaded ball joint and a high precision precious metal wiper. Carrier guides extrude the full length of the housing to insure smooth operation even under severe side load conditions.

The newly designed internal components provide improvements based on worldwide testing and field experience.

Intrinsically safe for Class I, II and III Division I, Groups A, B, C, D, E, F and G for hazardous (indoor/outdoor) NEMA 4 locations. V max.=30 V, I max.=100 mA, Ci=0, Li,=0mH.

Features Potential Applications
Features
  • Vibration damped element - No wiper bounce in high vibration environments
  • Spring-loaded ball joint on wiper assembly - Smooth, easy operation under high side loads
  • Extruded wiper carrier guides - Smooth operation under large misalignment
  • Precious metal wipers - Insures high performance, low noise, no oxidation
  • MystR� plastic elements - Tested up to one billion operations
  • High performance bearings - Long life under side load conditions
  • Shaft seals - Protect internal components from harsh environments
  • High DC level output - Works with simple controllers
  • Absolute continuous measurement - Accurate position at power-up
Potential Applications
  • Injection molding machines
  • Printing presses
  • Meat packing equipment
  • Drill presses
  • Woodworking machines
  • Cranes
  • Front-end loaders
  • Scales
Product Specifications
Supply Voltage 30 Vdc max.
Measurement Type Linear
Housing Size 309,6 mm [12.19 in]
Total Mechanical Travel 230,8 mm [9.09 in]
Electrical Travel 228,6 mm [9.0 in]
Starting Force (max.) 0,45 kg [1.0 lb]
Linearity ± 0.1 %
Backlash 0,025 mm [0.001 in]
Bearing Type Sleeve
Shaft Material Stainless Steel
Shaft Diameter 1/4 in - 28 NF-2A thread
Element Type MystR® conductive plastic film
Housing Type Anodized Aluminum
Termination Binder Series 681
Wiper Current <1 µA
Resolution Infinite
Operating Temperature -65 °C to 105 °C [-85 °F to 221 °F]
Vibration 20 g / 0,75 mm (rms) 5 hz to 2 khz
Shock 50 g 11 ms half sine
Operating Life One billion dither operations
Resistance 5,000 Ohms
Resistance Tolerance ± 20 %
Insulation Resistance 1000 MOhm @ 500 Vdc
Dielectric Strength 1000 V rms
Weight 0,500 kg [1.1 lb]
Sealing NEMA 4
UNSPSC Code 41111945
UNSPSC Commodity 41111945 Linear position sensors
Availability Global
Comments Note; Mating Connector, Item Number 3718401, sold separately. Options; Electrical Travel, Total Resistance, Linearity, Rod End Bearing, Ball Joint Assembly, Shaft Thread (M6 x 1 Metric), Din 43650 Connector, Dual Elements
Series Name LFII