
SLDL6100 Series Laser Level Gauge
SLDL6100 series laser level gauge uses the pulsed laser time-of-flight principle for non-contact, continuous level measurement of liquids and solids. Measurement accuracy is up to 1 mm, and the blind zone for flowing liquids is less than 5 cm. The series offers a wide measuring range, fast response and multiple output interfaces (4-20 mA, RS485, RS232, HART, FF and PA). Three models - SLDL6110, SLDL6120 and SLDL6130 - cover different ranges, accuracies and mounting styles.
- Product Introduction
Solidat Applied Technologies Ltd. is one of the leading manufacturers and suppliers of sldl6100 series laser level gauge in China, also supports customized service. Please feel free to buy high quality products in stock here and get quotation from our factory. Good service and reasonable price are available.
SLDL6100 Series Laser Level Gauge
Non-Contact Pulsed Laser Time-of-Flight Level Measurement for Liquids and Solids
Three models - SLDL6110 / SLDL6120 / SLDL6130 - measurement accuracy up to 1 mm

SLDL6100 series laser level gauge - non-contact pulsed laser measurement
Product Overview
The SLDL6100 series laser level sensor employs the pulsed laser time-of-flight principle. It is suitable for prolonged continuous operation.
This device can continuously output level data, as well as provide corresponding analog signals and various alarm point signals. The SLDL6100 is suitable for applications involving liquids and solids, with a measurement accuracy of up to 1 mm. It can also be used for rapid flow measurement.
For flowing liquids, its measurement blind zone is less than 5 cm. It enables high-precision, high-reliability and rapid measurements over long distances, featuring notable advantages such as high measurement accuracy, fast response speed, an extensive measurement range and a variety of output interfaces.
Product Features
- Small divergence angle with a wide range of applications
- Suitable for rapid flow level measurement
- High accuracy - up to 1 mm
- Easy to install
- Compact size, space-saving design
- Wide measurement range and fast response speed
- Unaffected by environmental noise and temperature
- Supports multiple measurement protocols, including 4–20 mA, RS485, RS232, HART, FF and PA
- Non-contact measurement, easy to maintain
Model Overview
The SLDL6100 series includes three models. They share the same pulsed laser time-of-flight measuring principle and differ in measuring range, accuracy, laser source and housing.

SLDL6110 - 100 m measuring range, 905 nm LD light source

SLDL6120 - compact housing for short-range high-precision measurement

SLDL6130 - threaded cylindrical housing for tanks and narrow installation points
Technical Parameters
| Parameter | SLDL6110 | SLDL6120 | SLDL6130 |
|---|---|---|---|
| Performance | |||
| Minimum range | 1 cm | 2 cm | 5 cm |
| Maximum range | 100 m | 24 m | 90 m |
| Accuracy | ±10 cm | ±2 cm | ±1 mm |
| Frame rate | 200 Hz | 200 Hz | 100 Hz |
| Light source | LD | LD | Laser |
| Ambient light resistance | 10 000 lux | 100 kLux | 100 kLux |
| Measurement mode | Static mode, Dynamic mode | Static mode, Dynamic mode | Static mode, Dynamic mode |
| Optical & Electrical Parameters | |||
| Wavelength | 905 nm | 635 nm | 650 nm |
| Beam angle | 0.5° | 0.5° | 0.5° |
| Communication interface | RS485, RS232, UART, CAN, 4–20 mA | RS485, RS232, UART, CAN, 4–20 mA | RS485, RS232, UART, CAN, 4–20 mA |
| Baud rate | 115200 | 115200 | 115200 |
| Input voltage | 5 V | 5–28 V | 24 V |
| Current consumption | 150 mA | 150 mA | 150 mA (peak) |
| Hardware Specifications | |||
| Outline dimension | Ø44 × 44 × 85 mm | 74 × 64 × 28 mm | 79 × 37 × 127 mm |
| Weight | 90 g | 300 g | 345 g |
| Housing material | Aluminium (Alufer) | Aluminium (Alufer) | Aluminium (Alufer) |
| Environmental Requirements | |||
| Laser safety classification | Class 1 (IEC 60825) | Class 1 (IEC 60825:2001) | Class 2 (IEC 60825-1) |
| Protection level | IP67 | IP67 | IP67 |
| Operating temperature | 0 °C to +50 °C | −40 °C to +70 °C | −25 °C to +55 °C |
Specifications are subject to change without notice. Please confirm the final model and process connection with SOLIDAT before ordering.
About SOLIDAT
SOLIDAT Applied Technologies, a member of the SOLIDAT group, was founded in 1981, initially providing radar and vibration-analysis technology for the aerospace industry. In 1996 it acquired SOLID Scientific Research & Development, gaining advanced ultrasonic and sonar technology together with the MonoScan and SMARTSCAN trademarks; in 1999 it acquired SOLTA Advanced Technologies, gaining advanced radar technology and the SOLTASCAN trademark. After more than four decades, SOLIDAT has become a globally recognized high-technology intelligent-instrument group at the forefront of radar, ultrasonic, sonar and electromagnetic sensing.
The SLDL6100 series laser level gauge is a non-contact laser level sensor for continuous level measurement of liquids and solids. It is widely applied in water & wastewater, chemical and petrochemical, food & beverage, metallurgy, power generation and other process industries, and can also be used for rapid flow measurement.
Website: www.solidat.net | China Office: +86-10-86468485
Send us your medium, measuring range, process connection and output requirements; SOLIDAT engineers will provide a selection proposal and instrument layout drawing.
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