YSQY
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Flow Meters
YSQYUltrasonic Flowmeter
Ultrasonic Open Channel Flowmeter
This ultrasonic open channel flowmeter measures open-channel flow via non-contact ultrasonic level detection combined with measuring weirs or flumes. It supports 0.1 L/s to 99999.99 m³/h, offers 0.5% level accuracy and 4–20 mA output, and suits sewage discharge outlets, sewage plants, municipal sewage, and irrigation channels.
- Accuracy
- 0.5%
- Measuring range
- 0.1 L/s–99999.99 m³/h depending on weir/flume
- Analog output
- 4-wire 4–20 mA / 600 Ω load
- Working temperature
- Display meter -20 to +60 °C, probe -20 to +80 °C
- Non-contact ultrasonic level measurement for open channel flow
- Works with triangular, rectangular, trapezoidal weirs and Parshall flume
- 4-wire 4–20 mA output with 600 Ω load capability
- Optional MODBUS RS485/RS232 communication
- Optional two relay outputs (AC 220 V/8 A or DC 24 V/5 A)
- Display meter IP65 or IP64 / probe IP68 protection
CECE certified · EMC 2014/30/EUCert. HTT202606786E · tested by HTT · covers YS seriesCertificateTest report
Specifications
YSQY technical data
| Parameter | Value |
|---|---|
| Measuring range | 0.1 L/s–99999.99 m³/h depending on weir/flume |
| Accuracy | 0.5% |
| Resolution | 3 mm or 0.1% (whichever is greater) |
| Flow measurement accuracy | 1–5% for standard weirs/flumes; 10–50% for non-standard weirs/flumes |
| Analog output | 4-wire 4–20 mA / 600 Ω load |
| Relay output | Option: 2 groups of AC 220 V / 8 A or DC 24 V / 5 A |
| Power supply | 220 V AC +15% 50 Hz, or 24 V DC 120 mA; option 12 V DC, battery, solar |
| Working temperature | Display meter -20 to +60 °C, probe -20 to +80 °C |
| Protection class | Display meter IP65, probe IP68; display meter IP64, probe IP68 |
| Communication | Optional 485 and 232 communication, MODBUS protocol |
| Probe cable | Integral: none; split: standard 10 m, 100 m at maximum |
| Probe material | Standard material ABS, anti-corrosive material in corrosive environment |
Applications
Where the YSQY is used
Water supply
Chemical dosing
HVAC
Food & beverage
Irrigation
Ordering
Terms & how ordering works
- MOQ
- 1 pc (flexible, no minimum for most products)
- Lead time
- 2-3 days for in-stock items, 15-30 days for custom orders
- Warranty
- 12-month warranty on all products
- Shipping
- FOB Ningbo / CIF available
- 01
Send Requirements
Medium, range, output and quantity.
- 02
Quote in 12h
Matched model, price and lead time.
- 03
Pre-shipment Check
Every unit inspected against spec.
- 04
Ship FOB / CIF
Export documents handled for you.
Request a Quote
YSQY Ultrasonic Open Channel Flowmeter
Sales engineer replies within 12 hours
Or WhatsApp +86-15958288207
Related Products
YSQY questions
What ranges are available for the YSQY?
Standard coverage is 0.1 L/s–99999.99 m³/h depending on weir/flume. Other spans, outputs, and process connections can be sourced to match the application. Send the working pressure and medium and we will confirm the exact option.
What is the MOQ and lead time?
1 pc (flexible, no minimum for most products). 2-3 days for in-stock items, 15-30 days for custom orders. Samples are available, with freight on the buyer’s account.
Can the YSQY be customized?
Range, output signal, process connection, cable length customizable through our supply partners.
Do you manufacture this transmitter?
SIBXSUN is an industrial instrumentation supplier in Ningbo, not the factory. We source the YSQY from qualified partners, inspect before shipment, and handle export documents and logistics.
Need the right ultrasonic open channel flowmeter for your process?
Send the medium, range, output, and quantity. We will confirm the matching option and a FOB Ningbo quote.
