Integrated Ultrasonic Liquid Level Gauge

1. Product Brief Introduction:

The integrated ultrasonic level gauge is widely used for liquid level and volume measurement in tanks, water tanks, reservoirs, and also for flow measurement in open channels. In practical applications, many interfaces cannot be touched, such as situations where the measurement equipment is corroded (by acids or alkalis), contaminated by the measurement equipment (in sewers), or where substances that cause adhesion (adhesives) are present on the measurement device. Since the measurement technology of the integrated ultrasonic level meter is based on the non-contact ultrasonic principle, the integrated ultrasonic level meter is suitable for liquid and material level positions that cannot be accessed by physical means.

2. Product Features:

3. Technical Specifications:

Range 4m, 6m, 8m, 10m, 15m, 25m
Sensor material PP, PVDF, PTFE, stainless steel (DIN1.4571, AISI SS316Ti)
Launch angle 5 °~7 °
Shell material plastic: PBT fiberglass, flame retardant (DuPont) aluminum: dust-proof coating
Working temperature: PP, PVDF, PTFE type: -30 ℃~+90 ℃; Stainless steel type: -30 ℃~+100 ℃ (can withstand CIP 120 ℃ and can withstand 2 hours of cleaning)
Environmental temperature -30 ℃~+60 ℃ (equipped with SA-100 programmer), -25 ℃~+60 ℃ and avoid direct sunlight
Pressure (excellent) 0.5-3bar (0.05-0.3MPa) Stainless steel 0.9-1.1bar (0.09-0.1MPa)
Sealing strip material PP type: EPDM; Other models: FKM (VIton)
Protection level sensor: IP68 (can be immersed in water); Shell: IP67 (NEMA6)
Power supply/power consumption high voltage type: 85-255VAC/6VA; Low voltage type: 10.5-40VDC/3.6W, 10.5-28VA/4VA
Accuracy ± (0.2% measurement distance,+0.05% range)
Resolution measurement distance:<2m: 1mm, 2-5m: 2mm, 5-10m: 5mm;  >10m: 10mm
Output analog output: 4-20mA, 600 Ohm
Contact output: 250VAC, 3A
Computer: RS485 (optional)
HART (optional)
Display (SAP-100): 6-digit, graphic, user LCD
Electrical connection 2 × Pg16 or 2-1/2 "NPT; Wire cross-section: 0.5-2.5mm2
Aluminum casing for electrical protection: Class I, plastic casing: Class II.

4. Measuring Principle:

The ultrasonic level gauge is vertically installed on the surface of the liquid, emitting an ultrasonic pulse to the liquid surface. After a period of time, the sensor of the ultrasonic level gauge receives the signal reflected back from the liquid surface. The signal is selected and processed by the transmitter circuit, and the distance from the liquid surface to the sensor is calculated based on the time difference between the ultrasonic level gauge emitting and receiving ultrasonic waves. Due to the use of advanced microprocessors and unique EchoDiscovery echo processing technology, ultrasonic level gauges can be applied to various complex working conditions. Integrated ultrasonic level gauge refers to an ultrasonic level gauge with a probe and a housing combined together.

5. Selection:

6. Installation:

1) The distance from the sensor emission surface to the lowest liquid level should be less than the range of the selected instrument.
2) The distance from the sensor emission surface to the highest liquid level should be greater than the blind spot of the selected instrument.
3) The emission surface of the sensor should be parallel to the liquid surface.
4) The installation position of the sensor should try to avoid positions where the liquid level fluctuates violently, such as the inlet and outlet directly below.
5) If the pool wall or tank wall is not smooth, the instrument needs to be at least 0.3m away from the pool wall or tank wall.
6) If the distance from the sensor emission surface to the maximum liquid level is less than the blind spot of the selected instrument, an extension tube should be installed with a diameter greater than 120mm and a length of 0.35m to 0.50m. The extension tube should be installed vertically with a smooth inner wall, and the opening on the tank should be larger than the inner diameter of the extension tube. Alternatively, the pipe can be directly connected to the bottom of the tank, with a diameter greater than 80mm, and a hole can be left at the bottom of the pipe to facilitate the flow of liquid.