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#018 – What kind of overvoltage protection is built in the vibrating wire piezometers?
A plasma surge arrestor is wired in parallel with the coil (which is used to pluck the wire). The nominal impulse discharge current 8-20 microsec interval is 10 KA. Impulse spark-over voltage at 1Kv/ microsec: 700 V.
FAQ#016 – Are the vibrating wire piezometers equipped with temperature sensors, or is the temperature sensor an option?
Yes, each vibrating wire piezometer, as every Sisgeo vibrating wire instrument, is equipped with a built-in NTC thermistor YSI 44005 type (3000 Ohm at 25°C). Thermistor is not a option for vibrating wire instruments and therefore there is not additional cost for it.
Trasduttori removibili per piezometri Casagrande
Trasduttori removibili per piezometri Casagrande Codici di riferimento: PK45C, P252C Il trasduttore removibile è progettato per misurare la pressione dell’acqua interstiziale attraverso uno speciale puntale con filtro Casagrande. I trasduttori di pressione removibili sono progettati per monitoraggi a lungo termine, grazie alla facile removibilità e possibilità di manutenzione. Vengono installati all’interno di piezometri dotati di […]