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UC4000-L2 200-4000mm sensing long range Ultrasonic water tank level sensor

The UC4000-L2 is a long-range industrial ultrasonic proximity switch, with a detection distance of 200–4000mm and a blind zone of 0–200mm, powered by 12–30VDC. It uses the time-of-flight principle of sound waves, with built-in temperature compensation, non-contact distance measurement, unaffected by object color, dust, or light, and provides stable readings. It supports PNP/NPN switch outputs, can be TEACH programmed, offers selectable beam width, the sensor head is rotatable in both directions, and the LED status light is visible from all angles. With an IP67 protection rating and M12 connector, it is quick to install and highly resistant to interference. Suitable for long-distance liquid/solid level monitoring, warehouse material detection, AGV obstacle avoidance, and large equipment positioning, it can be reliably integrated into PLC automation systems.

product details

Working Principle

The ultrasonic proximity switch's transmitter emits high-frequency ultrasonic waves. When these waves encounter an object, they are reflected back. The receiver captures the reflected echoes, and by measuring the time it takes for the ultrasonic waves to travel from transmission to reception, and combining this with the propagation speed of ultrasound in air, the distance between the sensor and the object can be calculated. When the distance reaches a preset threshold, the switch outputs the corresponding signal.

Product Features

1.Multiple signal outputs
2.Non-contact detection
3.Strong environmental adaptability
4.Wide detection range
5.Unaffected by material

APPLICATION SCENARIO

1. Large Tank / Water Pool Level Monitoring
Remote non-contact liquid level measurement for water towers, sewage tanks, chemical tanks, and acid/base tanks, unaffected by foam, color, or dust.

2. Silo / Hopper Material Level Detection
High-level/low-level alarms and continuous level monitoring for bulk materials such as granules, powders, sawdust, plastic pellets, and sand and gravel.

3. AGV Carts, Forklifts, and Unmanned Vehicle Obstacle Avoidance
Long-distance detection of obstacles ahead, enabling deceleration and stop protection, suitable for complex factory environments.

4. Logistics Sorting and Cargo Height Detection
Detection of cargo height, full and empty status in automated warehouses, stackers, and conveyor lines.

5. Roll / Sheet Material Spacing and Positioning Control
Detection, positioning, and correction control of spacing for paper, films, metal rolls, and sheets.

6. Construction Machinery / Lifting Equipment Limit Control
Long-distance position detection and collision protection for cranes, lifting platforms, and overhead traveling cranes.

7. Timber, Building Material, and Heavy Material Detection
Detection of presence, in-position verification, and counting for logs, pipes, and profiles.

Product detail

Technical Specifications

Product model	UC500-L2-E4-V15	UC2000-L2-E4-V15	UC4000-L2-E4-V15
Product model	UC500-L2-E5-V15	UC2000-L2-E5-V15	UC4000-L2-E5-V15
Detection range	50...500mm	80...2000mm	200...4000mm
Detect dead zones	0...50mm	0...80mm	0...200mm
Transducer frequency	About 380khz	About 180khz	About 85khz
Response time	About 50ms	About 150ms	About 325ms
Switching frequency	≤10Hz	≤3.3Hz	≤1.5Hz
Output type	E4 NPN NO/NC
Output type	E5 PNP NO/NC
Operating voltage	10-30VDC ripple 10%
Rated operating current	200mA short-circuit protection/overload protection
Repeatability	≤0.5%
Range adjustment	The farthest and closest ranges are adjusted by the adjustment line
Degree of protection	IP65
Connection method	V15 (5-pin) M12 cable/2m PVC cable
LED yellow light	The switch status indicates that the yellow light is flashing The target is detected in the set state
LED red light	Solid red light: Error Flashing red light: No target detected in the set state

Product model	UC500-L2-E6-V15	UC2000-L2-E6-V15	UC4000-L2-E6-V15
Product model	UC500-L2-E7-V15	UC2000-L2-E7-V15	UC4000-L2-E7-V15
Detection range	50...500mm	80...2000mm	200...4000mm
Detect dead zones	0...50mm	0...80mm	0...200mm
Transducer frequency	About 380khz	About 180khz	About 85khz
Response time	Minimum 21ms	Minimum 65ms	Minimum 145ms
Switching frequency	≤7Hz	≤2.5Hz	≤1Hz
Output type	E6: Two ways PNP NO/NC
Output type	E7: Two ways NPN NO/NC
Operating voltage	10-30VDC ripple 10%
Rated operating current	200mA short-circuit protection/overload protection
Repeatability	≤0.5%
Range adjustment	The farthest and closest ranges are adjusted by the adjustment line
Degree of protection	IP65
Connection method	V15 (5-pin) M12 cable/2m PVC cable
LED yellow light	The switch status indicates that the yellow light is flashing The target is detected in the set state
LED red light	Solid red light: Error Flashing red light: No target detected in the set state

Product model	UC500-L2-I-V15	UC2000-L2-I-V15	UC4000-L2-I-V15
	UC500-L2-U-V15	UC2000-L2-U-V15	UC4000-L2-U-V15
Detection range	50...500mm	80...2000mm	200...4000mm
Detect dead zones	0...50mm	0...80mm	0...200mm
Transducer frequency	About 380khz	About 180khz	About 85khz
Response time	Minimum 21ms	Minimum 65ms	Minimum 145ms
Standard target board	100mm*100mm
Output type	I: 4... 20mA
	U:0-10V
Operating voltage	10-30VDC ripple 10%
power consumption	≤900mW
Repeatability	±0.1% of full-scale value
Range adjustment	The farthest and closest ranges are adjusted by the adjustment line
Degree of protection	IP65
Connection method	V15 (5-pin) M12 cable/2m PVC cable
LED green light	Always-on: powered on Flashing: The target is detected in the set state
LED yellow light	The switch status indicator flashes The target is detected in the set state
LED red light	Solid red: Error Flashing red light: No target detected in the set state