Series REC 34 L
www.vishay.com
Vishay Sfernice
Revision: 26-Mar-15
1
Document Number: 54019
For technical questions, contact: sferprecisionpot@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Precision Linear Transducers, Conductive Plastic,
up to 450 mm
The 34 L is a compact, accurate and adaptable motion
transducer for both industrial and military markets.
FEATURES
• Measurement range 25 mm to 450 mm
• High accuracy ± 1 % down to ± 0.025 %
• Essentially infinite resolution
• Long life
• Sealed on request
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
Features
- • Measurement range 25 mm to 450 mm
- • High accuracy ± 1 % down to ± 0.025 %
- • Essentially infinite resolution
- • Long life
- • Sealed on request
- • Material categorization: for definitions of compliance
Specifications
Note
• Nothing stated herein shall be construed as a guarantee of quality or durability.
QUICK REFERENCE DATA
Sensor typeLINEAR, conductive plastic
Output typeWires
Market applianceProfessional
DimensionsL x 19 mm dia. (with L = TET + 63 mm)
ELECTRICAL SPECIFICATIONS
Theoretical electrical travel (TET = E)
in increments of 25 mm
25 mm
450 mm
Independent linearity (over TET)
On request
± 1 % - ± 0.1 %
± 0.05 % for E 100 mm
± 0.025 % for E 200 mm
Actual electrical travel (AET)See table 1
Ohmic values (R
T
)From 400 /cm to 2 k/cm
Resistance tolerance at 20 °C± 20 %
Repeatability 0.01 %
Maximum power rating0.05 W/cm at 70 °C, 0 W at 125 °C
Wiper currentRecommended: a few μA - 1 mA max. (continuous)
Load resistanceMinimum 10
3
x R
T
Number of tracks1; on request 2
Insulation resistance 1000 M, 500 V
DC
Dielectric strength 750 V
RMS
, 50 Hz
MECHANICAL SPECIFICATIONS
Mechanical travelTET + 2 mm min.
HousingAnodized aluminum
Operating force
On Request
0.35 N typical
(standard model)
2.50 N typical
(sealed model)
Shaft (free rotation)Stainless steel
Termination
On request
3 wires PTFE AWG-30 L = 300 mm
cable or connector
WiperPrecious metal multifinger
SealingIP65 on request
PERFORMANCE
Operating life25 million cycles typical/1 Hz/T° = 20 °C ± 5 °C/80 % TET
Temperature range-55 °C to +125 °C
Sine vibration on 3 axes1.5 mm peak to peak or 15 g - 10 Hz - 2000 Hz
Mechanical shocks on 3 axes50 g - 11 ms - half sine