Introduction to Sensor
HDR-PTEC Integrated Three-Parameter Water Level Sensor (HPT915)
Three-Parameter Monitoring for Reliable Water Measurement
The HDR-PTEC Integrated Three-Parameter Water Level Sensor is a robust hydrological measurement solution designed to simultaneously measure water depth, water temperature, and conductivity. Featuring high-quality sensing elements, a durable 316L stainless steel or titanium alloy housing, and IP68 protection, it is suitable for demanding measurement environments. With RS485/MODBUS-RTU communication and integrated data storage, the HDR-PTEC provides reliable long-term monitoring for hydrological and water-quality applications.
Specifications
Specifications
Water Level Sensor
| Item | Specification |
|---|---|
| Water level accuracy | <±0.05% FS |
| Water level range | 0~10mH₂O, 300 mH₂O |
| Long-term stability | <0.05%FS/year |
| Overload capacity | 2X FS |
Water Temperature Sensor
| Item | Specification |
|---|---|
| Temperature accuracy | ±0.2 ℃ (-70~70 ℃), higher accuracy on request |
| Temperature range | -40~85 ℃ |
| Resolution | 0.01℃ |
Conductivity Sensor
| Item | Specification |
|---|---|
| Conductivity range | 0~100mS/cm, others on request |
| Conductivity accuracy | 1.5%FS |
| Conductivity resolution | 0.001mS |
Temperature Characteristics
| Item | Specification |
|---|---|
| Compensation temperature | 0~50℃ |
| Operating temperature | -20~85℃ |
| Storage temperature | -40~125℃ |
Electrical Characteristics
| Item | Specification |
|---|---|
| Supply voltage | External power supply 5~30Vdc; Internal battery: 2.7~3.6Vdc |
| Battery life | 10 year (work once per hour) |
| Power protection | Anti-reverse connection, over-voltage protection |
| Output | RS485/MODBUS-RTU protocol |
| Load capacity | 128 nodes |
Data Storage
| Item | Specification |
|---|---|
| Storage | 8Mbit |
| Number of records | >3000pcs |
| Storage method | Timing drive, linear storage |
Structure
| Item | Specification |
|---|---|
| Measuring medium | Compatible with stainless steel and fluorine rubber |
| Shell material | Stainless steel 316L or titanium alloy |
| Cable material | Polyvinyl chloride, polyurethane, Teflon |
| Cable specifications | Φ7.6mm, with air hole, shielding layer and steel wire, length customized |
Environment
| Item | Specification |
|---|---|
| IP rating | IP68 |
Features
Special Features
01
Durable IP68 Construction
Features a stainless steel or titanium alloy shell with IP68 protection for demanding environments.
02
High-Stability Sensing Elements
Uses high-quality sensing elements to provide reliable and stable measurements over long-term operation.
03
RS485 and MODBUS-RTU Communication
Supports an RS485 interface with standard MODBUS-RTU communication for easy system integration.
04
Temperature Compensation
Provides automatic temperature compensation for pressure and conductivity measurements.
Applications

