Overview of Hydrostatic Level Transmitter
The RB21W represents a fully sealed submersible level transmitter, featuring the integration of a highly stable and reliable piezo-resistive pressure sensor enclosed within a durable stainless-steel housing. This integrated design, coupled with standardized signal output, offers users a straightforward and convenient solution for their on-site applications. The specialized cable, securely connected to the housing, allows for prolonged immersion in various media.
The RB21W level transmitter boasts a compact and lightweight design, delivering exceptional stability. Its versatility makes it suitable for liquid level measurement and control across a range of industries, including fuel, metallurgy, hydropower stations, mining, city water supply, and well and drainage systems, among others.
Main Features
- Welded construction, excellent reliability and stability
- IP68 housing
- Molecular filter at the end of Air vent tube
- Wide measuring range up to 200 meterH₂O
Applications
- Liquid height measurement in tank
- Bore well level measuring
- Continuous level monitoring of liquid
Technical Specification
| Performance Characteristics | |
|---|---|
| Measuring Range | 0… 1 mH2O |
| Over pressure | 0.5% FS |
| Long term stability | <0.3 % FSR / a |
| Response time | < 5 ms |
| Compensated temperature range | -10 … 55 c |
| Process temperature | -30 … 80 C |
| Process pressure | Refer measuring range for Process pressure |
| Material of Construction | |
|---|---|
| Diaphragm | SS316L |
| Housing | SS304 |
| Sealing | Viton |
| Cable | Ø 7.5mm Polyurethane Cable |
| Output Signal | |
|---|---|
| Current output | 4 ... 20 mA, 2-wire |
| Voltage output | 0~5VDC 0~10VDC 0.5~4.5VDC |
| Electrical Connection | |
|---|---|
| Cable | As per measuring range/ ordering code |
| Power Supply | |
|---|---|
| Voltage supply range | 11 ... 30V DC, with 4 ... 20 mA output signal |
| 15 ... 30V DC, with 0 ... 1 0V output signal | |
| 5V DC ratiometric ... with 0.5 ... 4.5V output signal | |
| Measuring Range (mH2O) | Cable Length (m) |
|---|---|
| 0...1 | 5 |
| 0...2 | 5 |
| 0...4 | 5 |
| 0...6 | 7 |
| 0...10 | 11 |
| 0...20 | 21 |
| 0...50 | 51 |
| 0...100 | 101 |
| 0...150 | 151 |
| 0...200 | 201 |
| Customized | |
Ordering Code
| RB21W | |||||
|---|---|---|---|---|---|
| Hydrostatic Level Transmitter | |||||
| Range | 0...1 mH2O~0...200 mH2O | ||||
| [0~X] Bar | X:the actual measured pressure | ||||
| Code | Output signal | ||||
| I | 4~20mADC | ||||
| V1 | 0~5VDC | ||||
| V2 | 0~10VDC | ||||
| V3 | 0.5~4.5VDC | ||||
| Code | Cable length | ||||
| 5m | Length in meter | ||||
| RB21W | (0...1mH O) | I | 5m | ||