LMP633

Static pressure 液位计measuring principle Via Measurement Liquid Static pressure 力实现液位检测。其核心Principle Based on 公式 ‌P=ρ·g·H‌+P0, 当处于Liquid 密度稳定环境时, Via 导气管将大气压引入Sensor 负压腔抵消大气压 (P0), 此时Liquid Static pressure 力 (P) 与液位高度 (H) 成正比。Process pressure 直接作用在内部敏感元件 (如Ceramic 过程隔离Diaphragm ) 上, Pressure Compensation 管将大气压变化传输至敏感元件背面进行Compensation 。敏感元件的形变会产生与Pressure 呈比例关系的Capacitance 变化量, 将Capacitance 变化量Conversion 成与Pressure 呈比例关系的Signal, Signal 与Medium 液位呈线性关系, 经Temperature compensation 和线性化Process Output 4-20mA Standard signal 。

Standard type

The LEEG submersible pressure transmitter is used for level measurement in water, wastewater and similar applications. The pressure sensor uses microprocessor technology for full linearity and temperature error compensation; the submersible probe in contact with the liquid uses a fully potted anti-condensation design; the signal transmission module uses transient-voltage-resistant protection circuitry; and the cable seal uses a cone plug sealing process. Suitable for indoor, outdoor and field level measurement.