Rotary Multiturn Sensors

  • Rotary multiturn Angle sensor is based on contactless magentic hall's Effect technology. (RHMS-22).
  • RHMS is in a compact dimension of 22mm OD with Maximum 10 turn (3600 deg) and 20 turn (7200 deg)
  • The Output signal correspondence to 0 to maximum number of turns and degree. Standard being 10 turn and 20 turn. However we customise the sensor based on application requirment.
  • Since the Product is based on Contactless Magnetic Technology it has very long life, No effect of radial load upto certain extent, High vibration withstanding rating.
  • The USP of the Product is with inbuild signal conditioner card with 0- 10Vdc output or PWM output or 0-5Vdc output. Beside this the back side slot allows the end user to precisely set the starting and end point.
  • For angle measurement less than 360 deg we have sensors with model number RHSS12, RHSS22 and RHSS48.
  • RHMS is a economical product with highly good accuracy and resolution of 12bit over a full range.
  • Variants
    • 12 bit resolution 5V input and 0.5 to 4.5Vdc Analog Ratio matric Output.
    • 12 bit resolution 24V input and 0 to 10Vdc Analog Ratio matric Output.
    • 12 bit resolution PWM Output.
    • Electrical angle can be 3 turn, 5 turn, 10 turn, 15 turn and 20 turn.
    • Mechanical angle can be 10 turn or 20 turn.
    • Shaft on both sides and Threaded shaft available.
    • Metal housing housing version available in 48mm dia.
    • Terminal Block, Turrets, Fly wire or cable output version available.
  • Benefits
    • Non Contact Linear Position Sensor based on Hall Effect Tenology.
    • Accurate Linearity upto 1% F.S. or 0.5% F.S (on request)
    • Extremely Long Life.
    • Extremely Compact in Size.
    • Short Circuit, Overvoltage and Reverse polarity protected.
  • Technical
  • Mechanical
  • Electrical


For best performance of RHMS-22 below points needs to be taken into consideration.
1) The hole in the panel should not be more than 9.5mm.
2) RHMS-22 should be mounted with Star washer given along with the product and perpendicularity between the panel and axis of Sensor should be maintained.

Magnetic Cross Talk

 If two RHMS-22 units are to be installed closer than 4 inch (measured between the center of both shafts), a magnetic shield, such as a small steel plate should be installed in between to prevent one encoder from causing small changes in reported position through magnetic field cross -talk .


Component Material
Housing Brass (endless)
PBT (with stop or endless)
Shaft Stainless
Busing Brass



Parameter Value
Operating Temperature  -40 to 75 deg (standard) 
-40 to 140 deg ( on request)
Storage Temperature -40 to 75 degC
Vibration 20g.

Ordering Information




input voltage Red - Fly wire
Brown - cable out
Gnd Green - Fly wire
Green - cable out
Output signal Yellow - Fly wire
White - cable out


Repeatability +/-10 deg
Effective electrical angle 1080,1800,3600,7200. Other angle on request available
Mechanical angle 3600 deg (for angle upto 3600 deg)
7200 deg ( for angle between 3600 to 7200 deg)
Maximum mechanical speed 500 RPM
Torque 1.8 N cm maximum
IP rating IP 50
Rotation shaft life 40 Million cycles.

  • Electircal Analog Output
  • PWM O/P
Electircal Analog Output



Parameters Results
Supply Voltage (Vsupply) 5Vdc(+/- 10%) // 6 to 35Vdc // 24Vdc
Supply Current 20mA // 50mA // 100mA
Response time 50mS
Resolution 12bit @ full angle
Load Resistance Minimum 10k ohms (preferred >100k ohms)
Output (Voutput) 10% to 90% Vsupply (Ratiomatric) @ 5V supply
0.5 to 4.5Vdc @ 6 to 35Vdc supply.


Parameter Results
Supply Voltage (Vsupply) 5Vdc (+/- 10%) // 6 to 35Vdc
Supply Current 20mA // 35mA
Frequency 200Hz, 500Hz, 1K Hz or 2 Khz based on requirement
Resolution 12bit
Output (Voutput) 0% to 90% duty Cycle
Linearity 1% Independent Linearity ( Available 0.5% on request)


Download Datasheet

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