FEATURES BENEFIT
HOW TO ORDER
L
ONG
F
ELLOW
II S
ERIES
LINEAR
POSITION
TRANSDUCER
• Vibration damped element • No wiper bounce in high vibration Environments
• Spring-loaded ball joint assembly • 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 DC level output • Works with simple controllers
• High performance bearings • Long life under side load conditions
• Absolute continuous measurement • Accurate position at power-up
• Shaft seals • Protect internal components from environments
• LF2W • NEMA 4 and water resistant
APPLICATIONS
•
INJECTION
MOLDING
MACHINES
•
PRINTING
PRESSES
•
MEAT PACKING
EQUIPMENT
•
DRILL
PRESSES
•
WOODWORKING
MACHINES
•
CRANES
•
FRONT-END
LOADERS
•
SCALES
•
SEMI CONDUCTOR
PROCESSING
LONGFELLOW II • LINEAR POSITION TRANSDUCER
The new Longfellow II has a rugged long-life design featuring greater
resistance to vibration and a smooth high quality signal. 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 extruded the full length of the housing insure smooth operation
even under severe side load conditions.
The Longfellow II is a direct drop-in replacement for existing Waters,
Data Instruments, Novotechnik, Gefran or Sfernice units. The newly
designed internal components provide improvements which were
developed after worldwide testing and field experience.
Intrinsically Safe for Class I, II, and III Division 1, 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, uF, Li, = 0 mH.
LF2S 06 N 5K B 6 A
Electrical
Travel
Unit of
Measure
Termination
Shaft
Linearity
Total
Resistance
(Ohms)
Note: Not all combinations are available. Minimum quantity orders apply. Contact the factory for more details.
Model
N = Inches
6 = 1/4 - 28 Thread
A = Binder
B = 0.1%
5K = 5000 Ohms
LF2S = Standard
LF2W = Water Resistant
06, 09, 12, 14, 18, 24, 30, 36, 48
www.honeywell.com/sensing/products/di
L
ONG
F
ELLOW
II S
ERIES
•
LINEAR
POSITION
TRANSDUCER
TECHNICAL SPECIFICATIONS
Sensing and Control
Honeywell
100 Discov ery Way
Acton, MA 01720 USA
T el: (877) 384-1300; Fax: (978) 263-0630
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local
sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell
will repair or replace without charge those items it finds defective. The foregoing is Buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of merchantability and fitness for a particular purpose.
Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer
to determine the suitability of the product in the application.
Item # 1102800 M.G. 10/01
DIMENSIONS
xx.xx = inches
(xx.x) = mm
MECHANICAL
Total Mechanical Travel 6 to 48 in.
(150 to 1200 mm)
Starting Forces* 1.0 lb (0.45 kg)
Total Weight 0.8 to 4.9 lb
(0.36 to 2 kg)
Vibration** 20 g rms/0.75 mm 5-2 Hz
Shock 50 g, 11 ms half sine
Backlash 0.001 in.
(0.025 mm)
Life One Billion Dither Operations
ELECTRICAL
Theoretical 6.0 to 48.0 in.
Electrical Travel (150 to 1200 mm)
Independent 0.1% over
Linearity Theoretical Electrical Travel
Total Resistance 5000 Ohms
Resistance Tolerance 20%
Operating -65° to 105° C
Temperature (-85° to 221° F)
Resolution Infinite
Insulation Resistance 1000 M Ohms @ 500 Vdc
Dielectric Strength 1000 V rms
Recommended Wiper Current <1 µA
Electrical Binder Series 681
Connection Connector or Equivalent
Maximum Applied Voltage 30 Vdc
* Starting force for LFIIW 5 lbs. MAX
Water resistant LFIIW Models are rated to NEMA 4
** For vibration levels up to 50 g rms and higher additional housing clamps are required
Caution: Do not test on an Ohm Meter on the Rx 1 scale or other current devices.
Caution: Excessive Wiper Current can cause Output errors or damage.
Caution: Zero shaft side load is recommended to achieve maximum life.
Notes:
1. Total Mechanical Travel equals Electrical Travel plus 0.090 inches minimum
2. ‘X’ Overall Length equals Electrical Travel plus 3.19 inches
3. ‘Y’ Equals Electrical Travel minus 1.00 inches
(EXCEPT for LF II 09/225: ‘Y’ Equals Electrical Travel minus 1.12 inches)
SPECIALS AND ACCESSORIES
• Other Electrical Travels
• Other Resistance Values
• Rod-end Bearings
• Ball Joint Assembly
• Dual Element
• DIN 43650 Connector
• Optional Linearity Values
• M6 x 1 Metric Thread
0.50
(12.70)
0.25
(6.40)
1.68
(42.70)
0.84
(21.30)
0.156 x 0.312 Slot, typical
(3.962 x 7.925)
1.36
(34.5)
'Y'
0.75±0.01
(19.00 ±0.20)
7/16" across flats, typical
1/4" - 28 NF-2A Thread
1.88
(47.8)
'X'
A
A
VIEW A-A
1.25
(31.80)
0.125
(3.175)
0.62
(15.90)
2.00
(50.80)
1.00
(25.40)
0.62
(15.90)
1.25
(31.80)5
1
SCHEMATIC
Shaft
extended
3
2
1
MOUNTING FEET (2)
Mounting feet shown above are for
standard LF II models only. Mounting
feet are not included with water
resistant LF II models. Water resistant
LF II models are shipped with brackets.
