RBCS Series Clamp-on Ultrasonic Flow Sensors

RBCS series clamp-on(N) ultrasonic flow sensors are compact and can measure flow and output results without external circuitry. The sensors can be clamped on rigid plastic tubings, such as PFA, PTFE, Teflon, PVDF, PP, and Nylon tubing, to accurately measure the liquid flow rate and detect air bubbles.

A silicone or rubber layer is used as the acoustic coupling layer between the sensor and tubing. The sensors are not in direct contact with the liquid in the tubing and will not contaminate the liquid. They are especially suitable for applications where strict hygiene is required, such as bio-pharmaceutical processes and medical equipment.

The sensor uses the ultrasonic transit-time difference method to non-invasively measure the liquid flow rate in the tubing. It has high precision and stability, can be used repeatedly without disinfection, and does not bring the risk of cross-contamination to the liquid. Standard products are available in a range of sizes to match the common tubing outer diameter. The sensors can also be configured as flow switches, bubble detectors, or dosing control devices.

Description

  • Principle
  • Features
  • Specification
  • Model Selection
  • Applicants
  • Download
Principle

RBCS series clamp-on(Non-contact) ultrasonic flow sensors Principle:

The Ultrasonic flow sensor uses the ultrasonic transit-time difference method to non-contact measure the liquid flow rate in the tubing. It has high precision and stability, can be used repeatedly without disinfection, and does not bring the risk of cross-contamination to the liquid. Standard products are available in a range of sizes to match the common tubing outer diameter. The sensors can also be configured as flow switches, bubble detectors, or dosing control devices.

Non-contact liquid measurement on rigid and flexible tubing plays an important role in a large number of applications with highest sterility and hygiene requirements and purity demands.

Non-invasive flow sensors and air bubble detectors are key components in the semiconductor industry, in bioprocessing applications, and are widely used in medical technologies.


Features

RBCS series clamp-on(No-contact) ultrasonic flow sensors  Features:

  • No moving parts
  • High precision and high stability
  • Non-invasive measurement, no direct contact with liquid, hygienic safety
  • Bi-directional measurement, can calculate fluid volume, detect air bubbles, perform volume dosing, and function as flow switches
  • Circuit embedded in the sensor and no external circuit is required
  • No blockage, no dead area, low fluid pressure loss
  • Provide standard output methods to seamlessly integrate with customer systems
  • Customized calibration of plastic tubing material, size, temperature, and liquid type
Specification

RBCS series clamp-on(Non-contact) ultrasonic flow sensors Specification:


Liquid

Water, blood, drinks, oil, paint, etc, without or not many solid particles

Accuracy

2% plus zero offset

Calibration

Default:22±3 °C, water

Tubing material

PFA, PTFE, Teflon, PP, PVDF, Nylon, etc., smooth inner and outer surfaces

Housing material

Plastic

Input voltage

12-30 VDC

Current

Less than 20mA (no external load)

Connector

8-pin push-pull plug

Fluid temperature

0°C to 60°C

Storage temperature

-20°C to 70°C

Shielding

Grounded

Input and output

  • RS485 output
  • Analog output: current output 4-20mA, 0-20mA, 0-24mA, voltage output 0-5V, 0-10V
  • Frequency output: 0-20KHz
  • Digital output: NPN, PNP, PUSH-PULL
  • Digital input: Ground, lasts at least 20ms

Accessory

8-wire shielded cable, default length 1.5m

Optional accessories

  • USB Data Converter: can connect a sensor to a PC
  • Flow Sensor Tool Box with display: can connect up to 3 sensors to a PC
  • Flow Sensor Monitor: can connect to a sensor with a display, and extend the sensor cable out
  • Flow Sensor Data Cable, 3 meters, push-pull plugs at both ends, can connect the flow sensor monitor and the sensor
Model Selection

RBCS series clamp-on(Non-contact) ultrasonic flow sensors  Model Selection:

RBCS series clamp-on(No--invasively) ultrasonic flow sensors Model Selection
Standard Products and Tubing Size:        
Part # Max Flow Accuracy Tubing OD Tubing ID
RBCS-025N-B 6000 mL/min 0-300mL/min: ±9mL/min 1/4" (6.4mm) 1/8" (3.2mm)
300-6000mL/min: ±2% 3/16" (4.8mm)
RBCS-031N-B 8000 mL/min 0-400mL/min: ±12mL/min 5/16" (7.9mm) 3/16” (4.8mm)
400-8000mL/min: ±2% 1/4" (6.4mm)
RBCS-038N-B 8000 mL/min 0-600mL/min: ±18mL/min 3/8" (9.5mm) 1/4" (6.4mm)
600-8000mL/min: ±2% 5/16” (7.9mm)
RBCS-050N-B 10000 mL/min 0-1000mL/min: ±30mL/min 1/2" (12.7mm) 3/8" (9.5mm)
1000-10000mL/min: ±2% 7/16" (11.1mm)
RBCS-063N-B 15000 mL/min 0-1400mL/min: ±42mL/min 5/8" (15.9mm) 7/16" (11.1mm)
1400-15000mL/min: ±2% 1/2" (12.7mm)
RBCS-075N-B 18000 mL/min 0-1600mL/min: ±48mL/min 3/4" (19.1mm) 1/2" (12.7mm)
1600-18000mL/min: ±2% 5/8” (15.9mm)
RBCS-100N-B 24000 mL/min 0-2400mL/min: ±72mL/min 1" (25.4mm) 5/8" (15.9mm)
2400-24000mL/min: ±2% 3/4” (19.1mm)
  Optional accessories
0 Standard Accessory: 8-wire shielded cable, default length 1.5m.
1 USB Data Converter: can connect a sensor to a PC
2 Flow Sensor Tool Box with display: can connect up to 3 sensors to a PC
3 Flow Sensor Monitor: can connect to a sensor with a display, and extend the sensor cable out
4 Flow Sensor Data Cable, 3 meters, push-pull plugs at both ends, can connect the flow sensor monitor and the sensor


 




Applicants

RBCS series Clamp-on(Non-contact) ultrasonic flow sensors Applications:

  • Medical devices such as hemodialysis machines, organ transplantation systems, heart-lung machines, blood pumps, syringe pump
  • Biopharmaceutical processes and equipment, such as fermenters, cell culture equipment, vaccine production, tangential flow filtration systems, liquid chromatographs
  • Food & beverage processing, such as milk, juice, and beer production
  • Filling equipment, spraying equipment, cooling system, lubrication system
  • Scientific experiment system
  • Water treatment and wastewater treatment system
  • Etc..
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