Rotary transmitters

Rotary transmitters are used for signal transmission of transducers on a rotating part (e.g. engine shaft) to a stationary system (measuring instrument). They are exceptionally well-suited for the transmission of low level electrical signals.

Features: 

• 1, 4, 8 or 12 channels
  
• Speed: up to 40,000 rpm
  
• Resistance: < 0.2 mOhms
  
• Noise: 25 µV
  
• Signal: up to 0.3 A per cell 60 V AC/DC
  
• Very low inertia
  
• No slip rings (non-contact)
  
• Not sensitive to electromagnetic disturbance
  
• Long lifetime
  

Specifications

	Cell	RS 204	RS 208	RS 212
Number of Channels	1	4	8	12
Speed Ranges	Standard version : 0 to 20,000 rpm
	High-speed version : 0 to 40,000 rpm
Total Noise	Typically 25 µV (max. 50 µV) with two cells in series at speeds from 0 to 20,000 rpm
Contact resistance of cell	Max. 0.2 milliOhms for 2 cells in series with an instantaneous variation from 0 to 5000 rpm
Insulation Resistance	More than 10 GigaOhms for two adjacent cells
Load Current	Max. 0,3 A per cell
Load Voltage	60V AC or DC between two cells or between cell and transmitter housing
Temperature Range	-25 °C to +60 °C
Thermal EMF	Typically 2 µV with two cells connected in series and at speeds from 0 to 20,000 rpm; corresponding to a possible error of 0.05% for a constantan-chromium nickel thermocouple, at a temperature difference of 600 °C
Connections (in/out)	Soldering contact	Cables (400 mm input and 400 mm output cables included)

 

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Downloads

Rotary transmitter product sheet