Xi'an Shelok Instruments Technology Co., Ltd.
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Description of input probe type 4-20ma tank Submersible Water Level meter Sensor :
water level sensor measures the liquid level using the principle that the liquid static pressure is directly proportion to the liquid height. This series of product is specially designed for the thundering areas in the Southern China using advanced silicon piezoresistive sensitive element made by German HELM Company, supported with HELM–patent lightning device. It is suitable for hydrographic and water conservancy liquid level measurement in the river, lake, and reservoir. It has successfully been applied in many hydrographic industries.
It applies to river, lake, reservoir, and overhead water tank, especially for hydrographic and water conservancy liquid level measurement in the thundering areas in the Southern China and Mountainous area in the Northern China.
| Measuring range | 0 ~ 0.5m…200mH2O or 0 ~ 5KPa…2MPa | ||
| Permissible over pressure | Two times of full–scale pressure | ||
| Medium to be measured | The gas or liquid compatible with 316 stainless steel, corrosion–proof type subject to special conditions | ||
| Overall accuracy (Linear, repeatability, lagging) |
± 0.25% FS | ± 0.4% FS | ± 1% FS |
| Long-term stability | Typical: ± 0.1% FS | Maximum: ± 0.2% FS | |
| Range of operating temperature | Integrated: - 20℃~70℃ | Split: - 20℃~80℃ | |
| Range of compensating temperature | Integrated: - 10℃~55℃ | Split: - 10℃~70℃ | |
| Zero point temperature drifting | Typical: ± 0.02% FS / ℃ | Typical: ± 0.05% FS / ℃ | |
| Sensitivity temperature drifting | Typical: ± 0.02% FS / ℃ | Typical: ± 0.05% FS / ℃ | |
| Range of power supplying | 12 ~ 36V DC( generally 24V DC) | ||
| Signal output | 4~20mA / 1 - 5V DC / 0~5V DC | ||
| Load resistance | ≤(U - 12) / 0.02Ω | ||
| Material of structure | Enclosure: Stainless steel 1Cr18Ni9N | Membrane: Stainless steel 316L | |
| Sealing: Fluorubber | Cable: 7.2mm PVC, special | ||
| Insulation resistance | 100MΩ, 500V DC | ||
| Protection degree | 1P68 | ||
| Thermal lagging | ± 0.1% FS | ||
| Response time | ≤2ms | ||
| Safe explosion - proof | Ex ia II CT5 | ||
| Lightness degree | Class III lightning design (10000V / 5000kA; ( Optional 20000V / 10000A) under special condition | ||
| Weight | Approx. 500g | ||
Features of input probe type 4-20ma tank Submersible Water Level meter Sensor :
1 Simply installation, easy operation, strong interchangeability;
2 Power supplied from 12V battery under special condition to solve the problem of power supplying in the field.
3 Designed with lightning device and intrinsically safe explosion–proof capacity and may apply to all kinds of hazardous sites.
4 The high–quality sensor is designed with high sensitivity and fast response to accurately reflect tiny change of dynamic or static liquid level, with high accuracy of measurement.
5 Fine and unique zero point, temperature drifting, non–linear compensation to ensure good accuracy and long–term stability of the instruments and meters with the working condition.
Tips of input probe type 4-20ma tank Submersible Water Level meter Sensor