The liquid level gauge is to measure the height of the liquid level in the tank or box, and displays the height of the liquid level inside. The liquid level is widely used. There are two types of liquid level including liquid level signal and continuous liquid level measurement. The liquid level annunciator measures the liquid level at several fixed positions, and is used for the upper and lower limit alarms of the liquid level. Continuous liquid level measurement is the continuous measurement of liquid level, which is widely used in petroleum, chemical industry, food processing, pharmaceutical industry, etc.
For the several liquid level detection technologies commonly used by pharmaceutical companies, such as the pressure type, buoyancy type, electrical type, ultrasonic type, radar type, tuning fork vibration type, etc. are mainly used. However, there are the strong acid, strong Alkali raw materials in the pharmaceutical company. Non-contact level gauges should be used for liquid level detection in storage tanks and water tanks. At present, with the automation of the pharmaceutical process, some pharmaceutical manufacturers use photoelectric level sensors to control the liquid level. According to the liquid level is monitored by the performance of liquid conductivity. In fact, the liquid level switch has a simple structure and can measure different liquid levels, which is suitable for occasions that do not require continuous display of specific liquid levels.
Therefore, real-time monitoring and automatic control in the pharmaceutical process are easy to reduce costs and increase efficiency to ensure safety. Shenzhen EPT photoelectric liquid level sensor / photoelectric liquid level switch-FS-IR1902D related solutions. Photoelectric liquid level switch-FS-IR1902D provides single point liquid level detection, TTL compatible signal output. The design sensor contains an infrared emission source and a detector, and the installation position is accurate to ensure that the two achieve good optical coupling in the air. When the tapered end of the sensor is immersed in liquid, infrared light will be transmitted out of the tapered surface, and the intensity of the light reaching the detector will become weak.