PT671L SERIES
PT671L Submersible Level Transmitter
PT671L Submersible Level Transmitter delivers accurate and reliable hydrostatic liquid level measurement for water supply, wastewater treatment and industrial storage applications. Featuring a stainless steel probe, IP68 protection and optional HART communication, it is designed for long-term continuous monitoring.
Level Range
1 mH₂O ~ 100 mH₂O
Output
1–5 V / 4–20 mA
Technical Specifications
LEVEL PERFORMANCE
Level Range
1 mH₂O ~ 100 mH₂O
Accuracy
0.05% FS / 0.1% FS / 0.2% FS / 0.075%F.S
ELECTRICAL & COMMUNICATION
Output
4–20 mA / 1–5 V
Power Supply
12~45 VDC
MECHANICAL
Weight
0.5–1 kg
ENVIRONMENTAL
Operating Temperature
-40~85°C
Protection
IP68
Product Overview
PT671L Submersible Level Transmitter is designed for continuous hydrostatic liquid level measurement in wells, tanks, reservoirs, rivers and industrial storage systems. Featuring a high-stability pressure sensing element with fully sealed stainless steel construction, it provides long-term reliable performance in demanding environments.
With multiple output options, wide measuring ranges and robust environmental protection, the PT671L is suitable for water treatment, groundwater monitoring, municipal engineering, petroleum, chemical processing and industrial automation.
Key Features
- Submersible Hydrostatic Level Measurement
- Stainless Steel Probe Construction
- Measuring Range from 1 mH₂O to 100 mH₂O
- Accuracy up to ±0.05% URL
- 4–20 mA & HART Output
- Wide Turndown Ratio (20:1)
- Integrated Signal Conditioning Circuit
- IP68 Waterproof Design
- Long-Term Stable Performance
- Suitable for Continuous Liquid Level Monitoring
Applications
| Industry | Typical Applications |
|---|---|
| Water Supply | Water Tanks & Reservoirs |
| Groundwater Monitoring | Wells & Boreholes |
| Municipal Utilities | Pump Stations |
| Chemical Industry | Chemical Storage Tanks |
| Petroleum Industry | Oil & Fuel Tanks |
| Environmental Protection | Wastewater & River Monitoring |
Technical Highlights
Level Measurement Performance
| Parameter | Specification |
|---|---|
| Measurement Principle | Hydrostatic Level Measurement |
| Sensor Technology | High-Stability Pressure Sensor |
| Measuring Range | 0–1 mH₂O to 0–100 mH₂O |
| Accuracy | ±0.05%, ±0.075%, ±0.1% URL |
| Turndown Ratio | Up to 20:1 |
| Output Signal | 4–20 mA / HART |
| Protection Class | IP68 |
| Long-Term Stability | Excellent |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 12–36 VDC |
| Output Signal | 4–20 mA |
| Communication | HART (Optional) |
| Signal Conditioning | Integrated Electronics |
| Surge Protection | Built-in Protection Circuit |
Mechanical Specifications
| Parameter | Specification |
|---|---|
| Measuring Medium | Liquid |
| Probe Material | Stainless Steel |
| Cable Type | Polyurethane / PVC (Optional) |
| Installation | Submersible |
| Protection Class | IP68 |
| Process Connection | Cable Suspension |
Custom Manufacturing
When the conventional products can not meet your needs, we can provide you with customized services according to the technical parameters.



































