Xi 'an Qinwei Instrument Factory (General Partnership Enterprise)
| Pipe Size Range | 1"~48" (25mm ~ 1200mm) |
| Pipe Size | DN15mm-6000mm |
| Measurement Principle | Ultrasonic transit-time or Doppler effect |
| Power Supply | 24 VDC，220V AC |
| Output | 4-20mA,LCD Display,RS485 |
| Protection Rating | IP65 or higher |
| Payment Terms | L/C,D/A,D/P,T/T |
| Supply Ability | 100PCS/Month |
| Delivery Time | 5-8 work days |
| Packaging Details | Carton |
| Communication Protocols | Modbus, HART, Profibus |
| Humidity | Up to 99% RH,non-condensing |
| Data Storage | SD card or internal storage |
| Installation Type | Clamp-on, Insertion, or Inline |
| Brand Name | QINWEIYB |
| Model Number | QWLW-GY213 |
| Place of Origin | China |
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Product Specification
| Pipe Size Range | 1"~48" (25mm ~ 1200mm) | Pipe Size | DN15mm-6000mm |
| Measurement Principle | Ultrasonic transit-time or Doppler effect | Power Supply | 24 VDC，220V AC |
| Output | 4-20mA,LCD Display,RS485 | Protection Rating | IP65 or higher |
| Payment Terms | L/C,D/A,D/P,T/T | Supply Ability | 100PCS/Month |
| Delivery Time | 5-8 work days | Packaging Details | Carton |
| Communication Protocols | Modbus, HART, Profibus | Humidity | Up to 99% RH,non-condensing |
| Data Storage | SD card or internal storage | Installation Type | Clamp-on, Insertion, or Inline |
| Brand Name | QINWEIYB | Model Number | QWLW-GY213 |
| Place of Origin | China | ||
| High Light | High Resolution Ultrasonic Flowmeter ，Transit Time Ultrasonic Flowmeter ，Transit Time Ultrasonic Flow Meter | ||
Phase Difference Measurement For High-Resolution Ultrasonic Phase Shift Flowmeter
The ultrasonic phase shift flowmeter is an instrument that calculates the flow velocity and flow rate of a fluid by detecting the phase difference of ultrasonic signals when they propagate in the downstream and upstream directions.
| Characteristics | Phase Shift Ultrasonic Flowmeter | Standard Time Difference Ultrasonic Flowmeter | Correlation Ultrasonic Flowmeter |
|---|---|---|---|
| Measurement Object | Phase Difference (Δφ) | Time Difference (Δt) | Randomly Marked Transmission Time (τ) |
| Core Advantages | High sensitivity at low flow rates and high resolution. | Balance between wide range, accuracy and robustness. | Insensitive to changes in medium sound velocity, suitable for complex fluids. |
| Low Flow Rate Performance | Excellent. | Generally good (limited by time measurement resolution). | Depends on the concentration of markers, usually good. |
| Upper Range Limit | Limited by phase ambiguity, relatively narrow. | Very wide. | Relatively wide. |
| Medium Adaptability | Clean, homogeneous single-phase flow. | Clean to slightly impure single-phase flow. | Non-homogeneous, multiphase flow. |
| Typical Accuracy | High (±0.5% to ±1% within the range). | High (±0.5% to ±1%). | Relatively high (±0.5% to ±1.5% under applicable medium conditions). |
The ultrasonic phase shift flowmeter is a model of the pursuit of "ultimate resolution" and "low flow rate detection capability" in ultrasonic flow measurement technology. It ingeniously converts the "time difference - phase difference" to amplify the hard-to-capture tiny time signals into phase signals that are easy to measure precisely.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
Establishe
Total Annual:
5 million-10 million
Employee Number:
500~800
Ecer Certification：
Verified Supplier
Our company adheres to the business philosophy of "treating people with sincerity and establishing the enterprise with integrity", emphasizing the development of the enterprise, customer-oriented, quality first, and striving for excellence. In the field of industrial automation instruments and met... Our company adheres to the business philosophy of "treating people with sincerity and establishing the enterprise with integrity", emphasizing the development of the enterprise, customer-oriented, quality first, and striving for excellence. In the field of industrial automation instruments and met...
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