Center for Monitoring of impact of infrastructures on environment, Bucharest – Romania

Under EU financing, a Center for monitoring of impact of infrastructure on environment has been created within Technical University of Bucharest.The project was developed though an International Tender which was awarded to SISGEO. The aim was to provide Technical University with comprehensive list of geotechnical equipment, in order to allow University specialist to deal with […]

FAQ#111 – Why I cannot read correctly my 4-20mA current loop gauge?

It could be a problem connected to the power supply given by the readout or logger. When the power supply is in the current loop (2-wire gauge) it is necessary to consider the effect of voltage drop across the shunt resistor on the voltage applied to the gauge. For example, suppose a 4-20mA gauge requires […]

FAQ #019 – ¿Cuál es la diferencia entre los filtros HAE (de alta entrada de aire) y LAE (de baja entrada de aire)?

Los filtros HAE (High Air Entry, alta entrada de aire) se utilizan normalmente para controlar la presión de poros en las presas de núcleo de arcilla y suelos saturados de baja permeabilidad. «Alta entrada de aire» significa alta resistencia a la entrada de aire cuando el filtro está saturado. La tensión superficial del agua en […]

Piezo-Resistive piezometers

Piezo-Resistive piezometers Códigos de referencia de los productos: P235S Piezo-resistive piezometers, also called semiconductor piezometers or strain gauge piezometers, are very accurate pressure transducers suitable for high frequency readings and short term applications. Their robust 4-20mA output signals are easy to read and automate with OMNIAlog and suitable for long-distance transmissions. They can be connected […]