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Communications Transmitters

Leading Manufacturer, Supplier & Retailer of RPM Transmitter.

RPM Transmitter

  • Min. Order (MOQ) 1 Piece
  • Voltage 220 V
  • Warranty 1 Year
  • Brand Sansel

Features :

  • 4 Digit seven segment LED display
  • Wide range 10 – 9999 RPM / RPS / RPH
  • 3 to 30V DC Input Pulse from any type Sensor
  • Opto isolated Re-transmission analog output 4-20mA or 0-10V DC
  • Optional RS 485 (2 wire) MODBUS RTU Protocol communication
  • Allows Maximum 3.5 kHz Input Pulse Speed
  • 12 V DC Sensor Supply
  • Universal Supply Voltage 90 to 270V AC / DC
  • RPM / Rate / Frequency Front Key Scalable
  • Scale factor & Exponential are Pre-settable
  • 2 Relay Output with Front Key Set table Hi & Lo Set points
  • Power ON Delay & Hysteresis for Relay Output is Provided
  • Speed Monitoring
  • Speed Control High & Low Speed Alarm
  • Length Measurement & Control
  • Line Frequency Monitor & Alarm
  • All types of Speed / Rate / Frequency Monitoring & Control Applications


Specification :

  • Model: RP 491
  • Display: 4 Digit 0.5” 7 segment Red LED
  • Accuracy: ± 0.05 % (± 1 count)
  • Range: 10 - 9999 RPM / RPS / RPH
  • Resolution: 0.001, 0.01, 0.1, 1 RPM / RPS / RPH (selectable)
  • Input: 3 - 30V DC from Proximity Sensor, Photoelectric Non Contact Sensor, Encoder, Potential Free Contacts, Limit Switch etc., .
  • Input speed: 3.5 kHz (Max.)
  • Scale factor: 0.001 to 9.999
  • Exponential: 10n = -3, -2, -1, 0, 1, 2
  • Relay output: 2 NO , 2 NC 5A rated Relays(power ON Delay & Hysteresis provided)
  • Re-transmission (optional): Opto isolated analog output 4-20mA or 0-10V DC
  • Communication (optional): RS 485 (2 wire) MODBUS RTU Protocol
  • Sensor supply: 12V DC (±10%) 50mA
  • Working temperature: 0 – 50°C
  • Power Supply: 90 to 270V AC / DC 50Hz
  • Dimension: 96 x 96 x 65 mm
  • Weight: 350 grams (Approx.)

Additional Information:

Delivery Time : 28 days

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