High-temperature gas-collecting cylinder liquid level transmitter（1mH2O=9.81kPa ）gas pressure-guided type, used for high-temperature, corrosive liquids, sewage, etc. The transmitter consists of a stainless steel gas-collecting cylinder, stainless steel capillary tube, and junction box. The sensor part and signal processing circuit are inside the junction box. The gas in the gas-collecting cylinder immersed in the liquid comes into contact with the medium, and the pressure is transmitted to the sensor through the gas guide tube, avoiding direct contact between the sensor and the measured medium. It is suitable for high-temperature and corrosive applications, effectively solving the difficulties of liquid level measurement for high-temperature corrosive liquids and sewage.

Product Features

Imported diffused silicon pressure sensing element, advanced diaphragm isolation technology

Stainless steel capillary tube connection, resistant to high temperature

The amplifier circuit adopts imported American BB integrated chip, wide voltage power supply

Lightning protection, frequency interference suppression design, strong anti-interference capability

Reverse wiring and overvoltage protection, current limiting protection

Good stability, fast response speed

Applicable Sites

Suitable for water level measurement in high-temperature water tanks and pools, intrinsically safe explosion-proof sites.

Performance Parameters

Measured medium: Water, oil, and other liquid media compatible with the material of the wetted parts

Pressure type: Gauge pressure

Overall material: Sensor body:316S stainless steel , gas-collecting cylinder and capillary tube:304 stainless steel, transmitter housing: die-cast aluminum

Liquid level range: 0~1…10 m（optional intermediate ranges）

Output signal: 4～20mA、0～5VDC、0～10VDC、1-5VDC、RS485

Power supply: 9-36VDC

Accuracy class: 0.25%FS、0.5%FS

Medium temperature: -40～180℃

Ambient temperature: -40～85℃

Overload capacity: 200%FS

Response frequency: ≤500Hz

Stability: ±0.1% FS/year

Temperature drift: ±0.01%FS/℃

Protection rating: ProbeIP68, junction boxIP65

Explosion-proof rating: Exia ⅡCT6

Maximum power: Current type≤0.02Us(W)Voltage type≤0.008Us(W)Digital type≤0.015Us(W)Note:Us=supply voltage

Load characteristics: Current type load≤{（Us-7）÷0.02（Us=supply voltage）}Ω

Voltage type load≥100kΩ

Since its establishment, Xi'an Shenghongchuang Instrument Co., Ltd. has mainly been engaged in the R&D and production of pressure, liquid level, temperature, differential pressure, digital display, weighing, and flow instruments.Main products include Swiss metallux ceramic piezoresistive sensors, self-developed ceramic capacitive pressure sensors. Diffused silicon, ceramic piezoresistive, strain gauge, metal capacitive, ceramic capacitive pressure transmitters remote pressure transmitters high-temperature pressure transmitters flush diaphragm pressure transmitters anti-corrosion pressure transmitters integrated/split liquid level transmitters anti-corrosion liquid level transmitters lightning-protection liquid level transmitters high-temperature pressure-guided liquid level transmitters rigid rod liquid level transmitters flange liquid level transmitters air pressure transmitters metal capacitive differential pressure transmitters diffused silicon differential pressure transmitters pressure controllers thermocouples/RTDs temperature transmitters ultrasonic level gauges

Precautions 1. All supplied products are provided with product certificates and instruction manuals, including product number, technical parameters, wiring circuits, factory date, etc. Please check carefully to avoid misuse.2. Wiring should be carried out strictly in accordance with our company's instructions for use.3. This product is a precision instrument. Random disassembly, collision, dropping, or probing the sensor with sharp tools is prohibited.4. The transmitter can work immediately after being powered on, but the output becomes stable after 30 minutes of preheating.5. If any abnormality is found during use, turn off the power, stop using it, inspect it, or directly contact our company's technical department.6. During transportation and storage, restore the original packaging and store it in a cool, dry, and ventilated warehouse.7. The quality warranty period is 12 months（damage caused by improper use such as pressure overload, incorrect wiring, etc. is not covered by the quality warranty）.8. Special products are customized products, do not participate in the 7-day no-reason return policy, and customized products have a delivery lead time, with no returns or exchanges.