Chongqing Chuanyi HS-AW-L03RCB3KXXB00SCMA Ultrasonic Level Gauge

The HS-AW Series Non-Contact Ultrasonic Level Transmitter is an advanced, industrial-grade solution designed for precise and continuous level monitoring in severe operating conditions. Utilizing non-contact acoustic echo-ranging technology, the sensor emits high-power acoustic pulses toward the target medium and measures the precise transit time of the reflected echo signals to calculate the exact height or distance of liquids, slurries, and solid materials. Engineered with high-durability sensors and integrated temperature probes, the HS-AW series provides automatic real-time temperature compensation to preserve measurement accuracy under varying ambient thermal conditions. The instrument is engineered for maximum operational flexibility, offering both compact integrated (mono-block) and remote (split) configurations to suit confined spaces or high-vibration equipment. Equipped with SIL2 safety compliance and an intrinsically safe Ex ia IIC T4 Ga explosion-proof certification, this transmitter reliably withstands aggressive chemical vapors, hazardous gas zones, and harsh outdoor elements.

To accommodate modern industrial automation systems and remote monitoring networks, the HS-AW series supports a wide spectrum of power inputs including 12–28V DC, 18–32V DC, 220V AC, as well as standalone internal battery and solar panel power supplies. Signal outputs and data communications are equally versatile, featuring standard 4–20mA (2, 3, or 4-wire), 1–5V DC, and 1–10V DC analog outputs, configurable relay and NPN switch contacts, and wireless or digital transmission via HART, RS485, 4G, GPS, NB-IoT, and LoRa protocols. Built with robust die-cast aluminum or ABS housings and corrosion-resistant wetted parts such as PP, PVDF, PTFE, or 316 stainless steel, the HS-AW series provides long-term stability and high reliability across municipal water treatment plants, open channels, chemical storage tanks, power generation coal silos, and food processing facilities.

FAQ
Q1: How does the HS-AW Series Ultrasonic Level Transmitter maintain accuracy under varying ambient temperatures?

A1: The sensor features a built-in temperature probe that provides real-time automatic temperature compensation, automatically adjusting for speed-of-sound variations caused by ambient temperature changes.

Q2: What is the maximum measurement range and dead zone for the HS-AW series?

A2: The measurement range spans from 1 meter up to 40 meters, with a minimal dead zone starting under 0.5 meters (ranging from 60 mm to 2000 mm depending on the selected span and mounting configuration).

Q3: Can the HS-AW transmitter be installed in hazardous or explosive environments?

A3: Yes, the HS-AW series holds SIL2 functional safety certification and offers an intrinsically safe explosion-proof option rated Ex ia IIC T4 Ga for hazardous zone applications.

Q4: What mounting and process connection options are available?

A4: The transmitter supports a wide variety of process connections including standard threads (G1-1/2″A, G2″A, G3-1/2″A, NPT, Metric), mounting brackets, and international flanges (HG/T, Class 150/300, PN6–PN40) in materials like 304, 316L, PP, and PTFE.

Technical Specifications

Reviewed product specifications

Measurement Range	1 m to 40 m (1 m increments)
Accuracy	±0.5% FS
Acoustic Frequency	20 kHz to 2000 kHz
Dead Zone	< 0.5 m (60 mm to 2000 mm depending on range)
Power Supply	12V–28V DC; 18V–32V DC; 3.7V DC; 220V AC; Internal dry battery; Solar power
Power Consumption	< 1.5 W
Display	High-contrast OLED display
Analog Output	4–20 mA (2-wire / 3-wire / 4-wire); 1–5V DC; 1–10V DC
Switch Outpu	Relays (SPST, up to 4 channels); NPN outputs (up to 3 channels)
Communication Protocols	HART, RS485, 4G, GPS, NB-IoT, LoRa, HART+RS485, HART+4G, RS485+4G, NB+RS485, LoRa+RS485
Ambient Temperature	-20°C to +60°C
Process Temperature	-40°C to +110°C (-20°C to 45°C / -40°C to 70°C / -40°C to 110°C)
Process Pressure	-0.7 to 10 kgf/cm²g (Atmospheric up to 10 bar)
Enclosure Material	Die-cast Aluminum (M20x1.5 / 1/2" NPT) or ABS Plastic
Transducer Wetted Material	ABS, PP, PVDF, PTFE, 304 Stainless Steel, 316 Stainless Steel
Ingress Protection	IP60 (Split unit), IP65, IP67, IP68
Safety Certification	SIL2 Compliance; Intrinsically Safe Ex ia IIC T4 Ga

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