Macsensor products

Level Sensors

MAC - Model L702 - Submersible Pressure Sensor

The L702 is a fully sealed submersible pressure transmitter designed for precision and durability, suitable for a range of demanding applications. This device integrates a highly stable and reliable piezo-resistive pressure sensor with an accurate circuit board, all encapsulated in a robust stainless steel housing. The construction ensures long-term immersion in various media without impacting performance. It covers a range of 0-0.1 Bar to 50 Bar, or 0-1 meters to 500 meters H2O, offering multiple output options including 4-20 mA, 0-5V, 1-5V, 0-10V, 0.5-4.5V, RS485 and RS232. The power supply options vary from 5V DC to 36V DC, with customized battery and temperature compensation options. Accuracy stands at ±0.5% F.S standard or ±0.25% F.S customized, while the working temperature range extends from -30℃ to 80℃, or up to 100℃ if customized. The L702 can be applied in diverse areas including water treatment, sewage processing, river and borehole levels, and industrial pressure measurement.

MAC - Model L703 - Submersible Hydrostatic Level Transmitter for Liquid Measurement

The L703 submersible hydrostatic level transmitter by MAC is designed with a corrosion-resistant 304 stainless steel shell, featuring a high-precision imported core with 0.5% accuracy. It includes a digital circuit board with temperature compensation and a welded 316L diaphragm, rendering it compatible with various liquids. The device is equipped with surge and polarity protection, ATEX explosion-proof certification, and military-grade cables to ensure stable signal transmission and protection from external interference. It is particularly suited for precise liquid measurement and control in sectors such as medicine, metallurgy, and municipal water supply. The transmitter supports diverse output signals including 4-20mA, 1-5V, 0-5V, 0-10V, 0.5-4.5V, SDI-12, and RS485 Modbus RTU. It operates within a temperature range of -30℃ to 70℃, extendable to -30℃ to 100℃ on custom versions, and is designed to withstand storage temperatures from -40℃ to 85℃. The device offers temperature compensation between 0℃ to 50℃, accuracy up to ±0.5%F.S or ±0.25%F.S on request, and long-term stability with a standard deviation of 0.2%F.S±0.05%. It has an ingress protection rating of IP68 and can handle overload up to 150% F.S.