The wall-mounted RW-60 detects ultrasonic waves at the mud water interface. It was designed for municipal and commercial wastewater treatment. The item’s accurate temperature compensation technology calculates ultrasonic round-trip time to accurately convert sludge layer height and thickness. In LCD widescreen multiinformation display mode, it provides precise and continuous data for sludge reflux control and sedimentation analysis. It is the most crucial monitoring tool for improving sewage treatment.
★★★★★
Features
- Maintenance free, high-precision, long service life
- High current relay, supporting multiple alarm outputs
- 4-20mA current output RS485 intelligent transmission signal output, supporting ModBus protocol
- LCD display window, with a beautiful and exquisite appearance, displaying rich information
- Save space and ensure reliable work
- High precision automatic temperature compensation system
- Chinese and English operation interface
Parameters
| Category | Specifications |
|---|---|
| Measurement Principle | Ultrasonic echo detection, automatic temperature compensation |
| Range & Accuracy | Measurement range: 0-20m; Accuracy: ±3%FS; Repeatability: ±5mm; Resolution: 1mm |
| Core Performance | Blind zone: 0.25-0.65m; Display: LCD screen (sludge level, temperature, current, time) |
| Power & Signal | Power supply: AC220V±10% or DC24V; Analog output: 4-20mA (load 750Ω); Digital output: RS485 Modbus-RTU |
| Alarm Output | 2 groups of relays (3 groups optional), support high/low point alarm |
| Physical Specifications | Transmitter dimension: 183.5×149×121.5mm; Protection class: Transmitter IP65 / Sensor IP68 |
| Sensor Parameters | Material: Stainless steel; Temperature range: 0-60℃; Pressure resistance: <0.6MPa; Process connection: 3/4NPT |
| Standard Configuration | Host: RW-60; Sensor: T-10; Submersible sheath: PP1020-200; Shielded cable: 10m (split-type standard) |
Core Highlights
- Ultrasonic precise ranging: Based on the principle of echo detection, combined with automatic temperature compensation, it corrects the deviation of sound velocity in water affected by temperature, with high measurement accuracy and good repeatability;
- Multi information intuitive display: LCD screen synchronously displays data such as sludge layer height, spacing, output current, temperature, etc., with rich and clear information at a glance;
- Flexible installation and adaptation: The host is wall mounted (supporting suspension or bolt fixation), the sensor is designed in a split type, and the bracket is immersed in installation to adapt to various types of water pools, making installation convenient and space saving;
- Reliable output and alarm: 4-20mA analog output+RS485 digital communication, dual relay can set high and low point alarms to meet the intelligent control and warning requirements of the system.
Featured Applications
- Municipal sewage treatment: monitoring of sludge layer height in secondary sedimentation tanks and concentration tanks, precise control of sludge return flow, and data support for optimizing sedimentation processes;
- Industrial wastewater treatment: monitoring of sludge interface in sedimentation tanks for wastewater treatment in industries such as chemical, printing and dyeing, and papermaking to avoid sludge loss or incomplete discharge;
- Environmental Protection Engineering: Real time tracking of sludge settling status in the centralized sewage treatment plant in the park, and monitoring of sludge layer thickness in the leachate treatment tank.
Daily maintenance and precautions
Installation and operation points
- Installation requirements: The host should avoid direct sunlight and vibration and be located in an easy-to-operate and maintain location. The sensor must be immersed in water for at least 50cm, away from bubble accumulation and obstructions. The bracket should be sealed and the cable not too tight.
- The sensor’s red wire goes to IN1, the black wire to COM, and the blue wire to T1; the 4-20m wire goes toBefore wiring, connect the AC220V power supply L to the corresponding terminal, N to the neutral wire, ground the ground terminal, and turn off the power.
- Method of operation: Enter measurement mode to examine real-time data after booting up; set range, installation height, relay alarm value, etc. using the menu; Calibrate the current regularly and fine-tune any deviations with temperature or dynamic correction functions.
Daily maintenance and troubleshooting
- Reminders for maintenance: Often clean the host case and the front end of the sensor; Check the power grounding and the line ends. Range, mounting height, and other settings are kept up to date with a monthly calibration. Dry, clean, and secure sensors that aren’t being used.
- Check the power and polarity if you can’t see the LCD. To keep the reading stable, clean or move the sensor. If relay alarms go off, check the wiring and type of alert. If that doesn’t work, check the settings and cords.
Technical Support
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RW-60 is the best tool for keeping an eye on mud-water interfaces since it uses ultrasound to get accurate readings, adjusts for temperature on its own, and can be installed and used in many different ways. Municipal and industrial wastewater treatment may be better at treating sewage and managing sludge if they have strong interference blocking, reliable data, and timely alerts. It keeps an eye on sludge layers in a quick and easy way.
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