Xi'an Yunyi Instrument Co., Ltd
Xi'an Yunyiyibiao Instrument Co., Ltd. is a national high-tech enterprise, specializing in the R&D, production and sales of pressure transmitter,level meter, flow , temperature instrument and
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Factory Supply High Quality Liquid Water tank Level Meter Sensor
1. Working principle of immersion level meter
Static pressure measurement principle:
Based on the principle that liquid static pressure is proportional to liquid level height (
P=ρgh, the static pressure at the bottom of the liquid or at a certain depth is measured by the sensor and converted into liquid level height.
Composition structure:
Pressure sensor: core component, converts static pressure signal into electrical signal (such as 4-20mA, RS485, etc.).
Probe (transmitter): directly immersed in the liquid, usually with anti-corrosion material (such as 316 stainless steel, ceramic).
Cable or air guide hole: balance atmospheric pressure (two designs: cable type and air guide type).
Specification of 19mm dia Submersible Level Transmitter 4-20mA rs485 level sensor
| Pressure Span | 0...1…500mH2O |
| Output Signal | 4...20mA |
| Supply Input | 10…36V DC |
| Accuracy | +/-0.5%FS |
| Non-Linearity | +/-0.250% FS |
| Repeatability | +/-0.10% FS |
| Thermal Error | +/-0.2% FS/oC |
| Zero Drift | +/-0.25% FS |
| Long Term Stability | +/-0.5% FS/Year |
| Over Pressure Safety | 200% |
| Operating Temperature | 0oC to 50oC |
| Response Time | <1ms (10-90%FS) |
| Diaphragm | titanium alloy Stainless Steel |
| Case Material | 316L Stainless Steel |
| Compatibility | Liquid compatible with titanium alloy |
| Protection | IP68 |