DR6451 Submersible Level Transmitter
DR6451 Submersible Level Transmitter
The DR6451 is an intelligent submersible water tank level sensor with RS485 or HART output. It adopts advanced diffused silicon pressure sensor, its accuray up to ±0.25%. Using high-performance MCU, high integrated circuit and anti-interference design of software and hardware, which make the sensor offers higher stability and reliability. In particular, the digital compensation and nonlinear correction technology under -10℃ ~80℃, the level sensor gurantee the good accuracy and stability in various industrial applications. In addition, the full stainless steel sealed construction and water-proof and oil-proof cable, make the water tank level sensor submersed under water for long-term measurement and ensure a long life.
Applications
- Petroleum, chemical, electric power
- City water supply and drainage
- Water or oil tank, hydrology, reservoir, riverway and ocean
- Hydrological monitoring
Features
- RS485, HART interface or 4-20mA DC two wire current output
- Digital compensation and nonlinear correction technology
- Anti interference design and hardware watchdog
- Support networking applications
Technical Specs
| Range | 1,2,5,10,20,50,100,200 mH2O | Zero thermal drift | ≤±0.03%FS/℃ (≤10mH20); ≤±0.02%FS/℃ (>10mH20) |
| Over pressure | 200%FS | Span thermal drift | ≤±0.03%FS/℃ (≤10mH20); ≤±0.02%FS/℃ (>10mH20) |
| Accuracy | ± 0.25% FS / ± 0.5% FS | Compensated Temp. | -10℃ ~ +80℃ |
| Stability | ±0.2%FS(1 year) | Working temp. | -10℃ ~ +70℃ |
| Output | 4mA~20mA DC(2-wire); | Storage Temp. | -30℃～+70℃ |
| Communication | RS485, HART | Insulation resistance | 100MΩ@50V DC |
| Load | ≤(U-12)/0.02Ω(2-wire); | Protection level | IP68 |
| Housing | stainless steel 304 | Power supply | 12V~28VDC; |
| Diaphragm | stainless steel 316L | Cable | Φ7.5mm Polyethylene Special Cable |
| Sealing ring | Viton |
Ordering Guide
| DR6451 | Submersible Level Transmitter | ||||
| Range | 1, 2, 5, 10, 20, 50, 100, 200 mH2O | ||||
| [0～X]mH2O | X: the actual measured pressure | ||||
| Code | Output signal | ||||
| R1 | RS485 | ||||
| R2 | 4mA~20mA DC+RS485 | ||||
| H | 4mA~20mA DC+HART | ||||
| Construction material | |||||
| Code | Diaphragm | Housing | |||
| M1 | SS 316L | SS 304 | |||
| M2 | SS 316L | SS 316L | |||
| DR6451- | [0~10]mH2O | R1 | M1 | The whole spec. |
Outline Construction (Unit: mm)
Electrical Connection
FAQ
What’s the HART level transmitter?
The HART function can transmit submersible water tank level sensor data through an AC digital signal. The AC digital signal uses a 4-20mA analog output signal as a carrier, so no need additional wires and connectors. Relying on an open communications protocol, HART communicators interface with HART-enabled “master” and “field” devices making it much easier to configure and calibrate instruments as well as diagnose issues before they become serious.
What difference bettwen the transmitter analog and digital communication ?
Analog have a 1-5 volt DC or 4-20 mA signal that corresponds to the variation in the pressure. With digital communication you have a protocol and thats a language that the controller and transmitter speak with each other to get the information. Some popular versions are HART, FieldBus, MODBUS, but make sure all of your equipment speaks the same language. because HART combines analog and digital communication, it’s also called a hybrid protocol
What difference bettwen HART and MODBUS?
Modbus is a serial communications protocol use with its programmable logic controllers (PLCs). In addition to pressure signal, the HART submersible pressure sensor digital signal often contains additional process measurements and other variables that may include instrument status, diagnostic data, alarms, calibration values and alert messages.