Representative photograph, actual
product appearance may vary.
LF2S12N5KB6A
LongFellow® II Linear Position Transducer, 304,8 mm [12.0 in] Electrical Travel,
Binder Series 681 termination, Item Number 9810903
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
Typical Applications
● Injection molding
machines
● Printing presses
● Meat packing equipment
● Drill presses
● Woodworking machines
● Cranes
● Front-end loaders
● Scales
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.
Product Specifications
Supply Voltage 30 Vdc max.
Measurement Type Linear
Housing Size 385,8 mm [15.19 in]
Total Mechanical Travel 307,0 mm [12.09 in]
Electrical Travel 304,8 mm [12.0 in]
Starting Force (max.) 0,45 kg [1.0 lb]
Linearity ± 0.1 %
Backlash 0,025 mm [.001 in]
Bearing Type Sleeve
Shaft Material Stainless Steel
Shaft Diameter 1/4 in - 28 NF-2A thread
Type of Element MystR® conductive plastic film
Housing Style Anodized Aluminum
Termination Binder Series 681
Wiper Current <1 µA
Resolution Infinite
Operating Temperature
Range
-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
Total Resistance 5,000 Ohms
Resistance Tolerance ± 20 %
Insulation Resistance 1000 MOhm @ 500 Vdc
Dielectric Strength 1000 V rms
Weight (Ranges) 0,590 kg [1.3 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 Series
Due to regional agency approval requirements, some products may not be available in your area.
Please contact your regional Honeywell office regarding your product of choice.
