Ultrasonic flow meter CS series

volumefor liquidsDN50 - 2"

Product overview
The CS series clamp-on ultrasonic flow sensor/flow meter provides compact, non-invasive flow measurement for rigid plastic tubing (PFA, PTFE, Teflon, PVDF, PP, Nylon).

The clamp-on design eliminates direct liquid contact to avoid cross-contamination and enables detection of air bubbles, bidirectional flow measurement, volume dosing and flow switching without external circuitry.

Compare to CPD series clamp on flow sensors, the CS series flow sensor / flow meter has no built-in LED display.

Key features

• High accuracy: typical ±3% (see part-specific tables for ranges)
• Non-invasive clamp-on installation, no fluid contact
• Bi-directional measurement, air-bubble detection, dosing and flow-switch capability
• Compact integrated electronics — no external wiring required
• Designed to avoid blockages and dead zones
• Multiple output options for automation integration

Applications
Wet cleaning
CMP slurry supply system
Wet etching
Wafer cleaner
Tank / Drum
DI water
Slurry mixing
Dispensing
Coating
Welding
Filling Machine
Assembly
CDU
Liquid cooling system
Automotive manufacturing
AI server

Measurable Liquids
Adhesive
Chemicals
Cleaning water
Oil
Coolants
Corrosive liquids
Grease
Ink
Machine oil
Slurry
Water
Other liquids with viscosity less than 5000 cp.

Product selection (Part # table)
Part # | Max Flow | Accuracy | Tubing OD | Tubing ID
CS025NB | 6000 mL/min | 0–300 mL/min: ±9 mL/min; 300–6000 mL/min: ±2% | 1/4" (6.4 mm) | 1/8" (3.2 mm); 3/16" (4.8 mm)
CS031NB | 8000 mL/min | 0–400 mL/min: ±12 mL/min; 400–8000 mL/min: ±2% | 5/16" (7.9 mm) | 3/16" (4.8 mm); 1/4" (6.4 mm)
CS038NB | 8000 mL/min | 0–600 mL/min: ±18 mL/min; 600–8000 mL/min: ±2% | 3/8" (9.5 mm) | 1/4" (6.4 mm); 5/16" (7.9 mm)
CS050NB | 10000 mL/min | 0–1000 mL/min: ±30 mL/min; 1000–10000 mL/min: ±2% | 1/2" (12.7 mm) | 3/8" (9.5 mm); 7/16" (11.1 mm)
CS063NB | 15000 mL/min | 0–1400 mL/min: ±42 mL/min; 1400–15000 mL/min: ±2% | 5/8" (15.9 mm) | 7/16" (11.1 mm); 1/2" (12.7 mm)
CS075NB | 18000 mL/min | 0–1600 mL/min: ±48 mL/min; 1600–18000 mL/min: ±2% | 3/4" (19.1 mm) | 1/2" (12.7 mm); 5/8" (15.9 mm)
CS100NB | 24000 mL/min | 0–2400 mL/min: ±72 mL/min; 2400–24000 mL/min: ±2% | 1" (25.4 mm) | 5/8" (15.9 mm); 3/4" (19.1 mm)

Inputs / Outputs and connectivity

• RS485 output
• Analog output: current options 4–20 mA, 0–20 mA, 0–24 mA; voltage options 0–5 V, 0–10 V
• Frequency output: 0–20 kHz
• Digital output: NPN, PNP, PUSH-PULL
• Digital input: ground-referenced, minimum pulse 20 ms

Accessories and optional accessories

• Supplied accessory: 8-wire shielded cable, default length 1.5 m
• Optional: USB data converter (connect sensor to PC)
• Optional: Flow sensor toolbox with display (connect up to 3 sensors to PC)
• Optional: Flow sensor monitor (display and cable extension)
• Optional: Flow sensor data cable, 3 m, push-pull plugs both ends (monitor↔sensor)

Applications and suitability
Suitable for non-invasive flow measurement of liquids with few or no solids, including water, pure water, cleaning solutions, acids, chemicals, CMP slurry, oils, beverages and alcohols. Designed to reduce contamination risk in hygienic or sensitive applications and to integrate into automation and dosing systems.

Technical specifications

• Liquid compatibility: water, blood, drinks, oil, paint, acids, chemicals, CMP slurry (low solids)
• Accuracy: 2% plus zero offset (part-specific accuracy in table)
• Calibration: default 22 ±3 °C, water
• Tubing material: PFA, PTFE, Teflon, PP, PVDF, Nylon; smooth inner/outer surfaces
• Housing material: plastic
• Input voltage: 12–30 VDC
• Current consumption:
• Connector: 8-pin push-pull plug
• Fluid temperature range: 0 °C to 90 °C
• Ambient temperature range: 0 °C to 60 °C
• Shielding: grounded
• Outputs: RS485, analog (4–20 mA, 0–20 mA, 0–24 mA, 0–5 V, 0–10 V), frequency (0–20 kHz), digital (NPN, PNP, PUSH-PULL)