Hydrostatic Level Transmitter
Level Transmitters
A level transmitter is an electronic device that converts level measurements from a sensor to a display for a user. They can measure the level of both liquids or solids within a defined space or container (water tank, oil drum, etc), sending the data via a signal to a receiver. The receiver can be either a computer-controlled device or to a display for a user to read.
The term ‘hydrostatic’ refers to the pressure that fluids exert or transmit. So a hydrostatic sensor will measure the increase in hydrostatic pressure resulting from the increasing height of the liquid. A displaced electrical charge will accumulate, generating an output signal. Applications include measuring levels in groundwater, deep wells, water towers, rivers, sewage treatment plants and so on.
Hydrostatic Level Transmitter
Semrad Pty Ltd, distributor of high quality industrial level sensors, gauges, switches and transmitters, is dedicated to providing cost effective and technically advanced solutions for measuring and controlling liquid and bulksolid levels. Their products are specifically designed to perform accurately and reliably in a range of environments, including caustic, hazardous, non-contact and invasive configurations. Their years of experience have included thousands of installations worldwide in a range of industries from chemical to wastewater, mining, beverage, electronic, material handling, agriculture, textile, pharmaceutical, medical and environmental.
Semrad’s NivoPress NT-100 is a two-wire hydrostatic level transmitter that can be used in applications from liquids and masses in tanks and vessels to chemicals with dense vapour or gas layers above the surface, foaming liquids, and viscous or corrosive materials. It is controlled by a microprocessor to measure the pressure difference between the hydrostatic pressure of the liquid head above the sensor and the actual atmospheric pressure. The changes in pressure are converted into a 4-20 mA output signal. It features a ceramic diaphragm, scalable analogue output, programmable damping, secondary lightning protection, high overload capability, high accuracy (<0.2%), and a process temperature range of -30° to +100°C. The probe material is made of stainless steel, takes a power supply between 12 – 30V DC, and 8 ranges starting at 0.1 bar.