BT50S Microflow Variable-Speed Peristaltic Pump

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This product is discontinued. Please check the BT100S or BT103S for a replacement.


BT50S microflow variable-speed peristaltic pump provides flow range from 0.00011 to 190 mL/min with variable pump heads and tubings. It offers not only the basic functions such as reversible direction, start/stop and adjustable speed, but also Easy Dispense feature. With MODBUS RS485 interface, pump is easy to communicate with external device, such as PC, HMI or PLC.

Functions and Features

  • Four-digit LED displays speed and working mode.
  • LED indicator shows working state.
  • Membrane keypad.
  • Reversible direction, start/stop control and adjustable speed.
  • Easy Dispense Mode.
  • 0.5% high precision rotating speed control with 0.1 rpm speed.
  • External logic level signal can control start/stop, direction and dispense function; external analog signal can adjust the rotating speed. Signal is optically isolated.
  • With RS485 MODBUS interface, easy to communicate with external device.
  • Internal double-deck isolation structure; circuit board with conformal coating makes it dust-proof and moisture-proof.
  • Anti-electromagnetic interference feature, wide input voltage range for complex power environment.
  • Stainless steel enclosure, easy to clean, resistant to the corrosion of the acid, alkali, sodium and organic solvents.


  • Flow range: 0.00011-190 mL/min
  • Speed accuracy: 0.5%
  • Speed range: 0.1-50 rpm
  • Speed resolution: 0.1 rpm
  • Power supply: AC 220V ± 10%, 50Hz/60Hz (standard); AC 110V ± 10%, 50Hz/60Hz (optional)
  • Power consumption: < 25W
  • External logic level control signal: 5V, 12V (standard), 24V (optional). External analog control signal: 0-5V (standard); 0-10V, 4-20mA (optional)
  • External communication interface: RS485 MODBUS
  • Ambient temperature: 0~40 °C
  • Relative humidity: < 80%
  • IP grade: IP31
  • Dimensions (L x W x H): 225 x 132 x 128 mm (8.86 x 5.20 x 5.04 inch)
  • Weight: 2.7 kg (6.0 lbs)

BT50S Suiable Pump Heads and Tubings, Flow Parameters

Drive type Pump head Channels Tubing size (mm) Flow rate per channel (mL/min)
(304SS case)
DG10-1 (10 rollers) 1 Wall:0.8~1, ID:≤2.4 0.00011~13
DG10-2 (10 rollers) 2 Wall:0.8~1, ID:≤2.4 0.00011~13
DT10-18 2 Wall:0.8~1, ID:≤3.17 0.0002~41
DT10-28 2 Wall:0.8~1, ID:≤3.17 0.0002~41
YZ15 1 13# 14# 16# 19# 25# 17# 0.006~140
YT15 1 13# 14# 16# 19# 25# 17# 18# 0.006~190


Please click here to download the operation manual.

More Information
Flow Rate0.00011-190 mL/min
Max No. of Channels2 Channels
Max Speed50 rpm
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