LPT20 Piezometric Level and Water Temperature Sensor
- Manufacturer: Nesa
- Category: Structural monitoring, Piezometers, SENSORS, Level Sensors, Level Sensors for Liquids
The NESA LPT20 is a water level (piezometer) and temperature sensor, with a piezometric capsule housed in a cylindrical body made of AISI316 stainless steel. It is used as a hydrometer in clean water, with automatic atmospheric pressure compensation via a special cable.
Typical range 0÷20 bar and -5 ÷ +80 °C, sensitivity 0.001 bar and 0.01°C, accuracy < 0.5% fs or better and ± 0.5°C, response time < 1s. Output 2 x 4÷20mA (LPT20-B), current loop or 10÷28 Vdc power supply, consumption < 0.3W.
Key points
- Typical range 0÷20 bar and -5 ÷ +80 °C; sensitivity 0.001 bar and 0.01°C
- Accuracy < 0.5% fs or better and ± 0.5°C; response time < 1s
- Piezometric transducer, NTC; automatic atmospheric pressure compensation with special cable
- Output 2 x 4÷20mA; with MCS module (optional) 2 x 0÷2Vdc or RS485 ModBus
- Power supply: current loop or 10–28 Vdc; consumption < 0.3W; protections against reverse polarity and transients
- Operating conditions -5 ÷ +80 °C; 316 stainless steel body; 100g; CE
Technical Frequently Asked Questions
What does the LPT20 measure?
The hydrometric level (piezometer) and water temperature, with a piezometric capsule and an NTC transducer.
What is its range and accuracy?
Typical range 0÷20 bar and -5 ÷ +80 °C. Accuracy < 0.5% fs or better and ± 0.5°C; sensitivity 0.001 bar and 0.01°C.
What kind of outlet and power supply does it have?
Output 2 x 4÷20mA (LPT20-B), with MCS module (optional) 2 x 0÷2Vdc or RS485 ModBus. Power supply in current loop or 10÷28 Vdc, consumption < 0.3W.
What material is the body made of?
316 stainless steel, with protection against reverse polarity and transients.
How do I order it?
Sensor (LPT20) and output (A, B or C). Manufacturer's example: LPT20 B. For non-standard sizes, specify the length.
Properties
| Feature | Specification |
|---|---|
| Measurement and operating principle | |
| Measured magnitude | Piezometric level and water temperature |
| Transducer type | Piezometric, NTC |
| Typical range (pressure) | 0-20 bar |
| Typical range (temperature) | -5 to +80 °C |
| Sensitivity (pressure) | 0.001 bar |
| Sensitivity (temperature) | 0.01°C |
| Accuracy | < 0.5% fs or better |
| Temperature accuracy | ± 0.5°C |
| Response time | < 1s |
| Regulatory compliance | EC |
| Exit signals | |
| Output signal (LPT20-B) | 2 x 4÷20mA |
| With MCS module (optional) | 2 x 0÷2Vdc (A) or RS485 ModBus (C) |
| Power supply, environment, and mechanical data | |
| Feeding | Current loop or 10÷28 Vdc |
| Consumption | < 0.3W |
| Operating conditions | -5 to +80 °C |
| Protections | Against polarity reversal and transients |
| Body | 316 stainless steel |
| Weight | 100g |
Related documentation, cases, and guides
Other products
