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 […]

Egnatia Odos Road – Athens, Greece

Egnatia Motorway was designed to the specifications of the Trans-European road network. Across Epirus and Northern Greece from Igoumenitsa to Evros, Egnatia Motorway is one of the largest road construction projects in Europe, 670 kilometres long and 24.5 metres wide.The realisation of this motorway requires the construction of: 50 road interchanges; 350 entrance / exit […]

Athens Metro, Greece

A new, modern, fast, comfortable, reliable and safe transport mode has been gradually been in operation since January 2000. Today, 23 Metro Stations are in operation at both METRO lines: Line 2 SEPOLIA – AGHIOS DIMITRIOS/ALEXANDROS PANAGOULIS (red Line) and Line 3. The whole Project is divided into: The Stations of the Base Project: MONASTIRAKI-ETHNIKI […]

Marmaray Tunnel, Turkey

The Marmaray Project is the upgrading of approximately 76 kilometers of commuter rail system in Istanbul, connecting Halkalı on the European side with Gebze on the Asian side with an uninterrupted, modern, high-capacity commuter rail system. This Project is one of the major transportation infrastructure projects in the world at present.

Genova Underground Station – Italy

This section of the Genoa subway will improve the transportation to both the Old Genoa Harbour Exhibition Centre and the new Aquarium, improving in the meantime both traffic conditions and the re-organisation of the surface transport network. Works have required important preliminary soil consolidation works and were executed in a heavily populated urban area, without […]

Chuquicamata Mine (Codelco), Chile

Chuquicamata is an opencast copper mine, where a relatively poor copper ore is mined in impressive huge amounts. Modern mining and smelting technology allows the usage of such depostits at unrivaled low costs. The ore contains only between 1,13% and 1,18% metals, most of it copper, but also molybdenum and selenium in a very low […]

Komayestan Dam, I.R. of Iran

Project Name: Komayestan Dam Purpose of the project: Irrigation Project location: IRAN – Khorasan- Sabzevar Client: Khorasan Regional Water Authority Contractor: Kahar –e- Khorasan CO. Dam Type: Concrete gravity dam Height above foundation: 34.5 m Crest length: 835 m Capacity of the Reservoir: 1,200,000 m3 End of construction: February 2002

Mazar hydroelectric project, Ecuador

The Mazar hydroelectric power plant site is located in the south-eastern part of Ecuador and consists of the 2nd phase of the exploitation of the potential energy of the middle course of the Río Paute. The Mazar hydroelectric power project will be constructed immediately upstream of the Amaluza reservoir and will have a capacity of […]