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PW 620 Potentiometer

WIRE DEVELOPMENT in Synchro-Design

  • 50.8 mm
  • Wire winding
  • Synchro size 20

GENEREL

Potentiometric angular position transmitters play a crucial role in analog measuring techniques, particularly for high-quality measurement tasks. These transmitters find applications in various fields, including:

  1. Railway Vehicles and Ship Telegraphs: They are used for power braking control elements in railway vehicles and ship telegraphs.
  2. Ship Rudder and Propeller Systems: Potentiometric transmitters are employed in rudder and propeller systems for ships.
  3. Energy Management and Chemical Industry: They serve as control drives in energy management and chemical industry systems.
  4. Cranes and Excavators: Potentiometers are used in lifting gears and slewing mechanisms of cranes and excavators.
  5. Meteorological Measurements: Tail vanes for meteorological measurements rely on potentiometric transmitters.
  6. Textile and Paper Machinery: They function as dancer potentiometers in textile and paper machinery.
  7. Mechanical, Apparatus, and Medical Engineering: Potentiometers are also used for measurements in these fields.

Key features of potentiometric transmitters include high-resolution elements made of conductive plastic, constantan wire with varying resistance and angle values. These transmitters come in different sizes, including single-turn or multiple-turn potentiometers. Additionally, many series allow adjustment of the measuring range through shorted sections, tappings, and function windings. Some models even incorporate signal converters to provide current or voltage outputs (in 2, 3, or 4-wire configurations). For harsh environments, oil-filled potentiometers ensure reliability. Furthermore, protective housings (ranging from IP 40 to IP 68) are available to safeguard potentiometers from mechanical damage in dusty and damp industrial atmospheres, some of which can be equipped with gearing and limit switches

PW620

Precision Potentiometer with Wire Winding

The precision potentiometer of series PW620 is equipped with a high-resolution wire winding. The angle and resistance value can be specified by the user as desired and can also be supplemented by additional short-circuit distances and taps on request.

• Compact design in synchro size 20
• Resistance value and angle range can be set as required
• Angle measurement up to max. 360°
• Available with two switche

Electrical and mechanical adaptations are possible at any time on request.

 

Technical data

PW 620

Resistance element straight-shaped ring
Material of housing aluminium, anodised
Synchro size 20
Diameter of housing 50,8 mm
IP code of housing IP 30
Diameter of shaft 6 mm
Shaft bearing ball-/sintered bearing
Material of shaft stainless steel
Adjustment speed max. 1000 U/min.
Torque 0,05 Ncm
Torque (oil-filling) 1 Ncm
max. active angle (± 0,5°) 350° 360°
max. stop angle 340°
Value of resistance up to 20 kΩ
Resistance tolerance 5 % 2%
Linearity tolerance ± 0,2 %
Resolution (winding) * 3434 Max. 2321
Capacity 1 W 2,5 W
Multiple version sixfold
Functional winding ü
Oilfilling ü
Switches ü
Connection soldered connection/wire
Weight** 70 g

* depend on resistance value and active angle

** single version

General data

Temperature range -30° C up to +80° C
Test voltage 550 V, 50 Hz, 1 min.
Vibration resistance 5 – 200 Hz, 10 g
Shock resistance 50 g, 6 ms
Life time high lifetime due to a patent-registered spiral wiper 10 – 100 millions cycles
Fastening depend on version: Central fixing, clamp fixing, threaded holes

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Broschure | Potentiometer

 

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