Molunghi landslide monitoring, Italy
Study and monitoring of Molunghi landslide The monitoring project of Molunghi landslide is the result of the cooperation between the Comune di Calice al Cornoviglio and the Road Department of La Spezia Province and it is began in consequence of the instability of both the provincial street and part of Monlunghi di Mezzo inhabitat during […]
FAQ#116 – How do I configure a WR-Log digital node to read RS485 Sisgeo TIMED sensors?
Sisgeo digital instruments can operate in two powering modes: TIMED or ALWAYS-ON (for more information see F.A.Q.#094.A string of mixed instruments consisting of TIMED gauges and ALWAYS-ON gauges cannot work.The first thing to do is therefore to check that ALL connected instruments in your array are set to TIMED mode.You can check the powering mode […]
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#095 – How long does a chain of digital sensors take to be read?
It mainly depends from the powering mode of the gauges (refer to FAQ#094 for the description of the powering modes). AN EXAMPLE WILL BETTER CLARIFY THE ANSWER. In a batch of 240 gauges, unless otherwise requested by the Customer, the addresses are settled from #001 up to #240. In a borehole is installed a chain of 30 […]
FAQ#094 – Which are the available powering modes for SISGEO digital sensors?
All SISGEO digital gauges can be settled in two different powering mode: The STANDARD powering mode is ALWAYS ON, so unless otherwise requested by the Customer, the sensors are settled as default in ALWAYS ON.
FAQ#087 – Could the IPI, BH Profile and DEX probes have problems in frozen water?
Sisgeo suggest that frozen water within the inclinometer casings is to be avoided due to following reasons: – Ice within the casing will affect functionality of the systems by blocking the individual probes;– Mechanical damages can occur to the probes, but also to the inclinometer casing due to the expansion of frozen water In any […]
FAQ#075 – What parameters are saved in SISGEO digital sensors? What information must the Customer provide when ordering?
All SISGEO digital sensors (e.g. IPI, BH Profile, MD Profile, LT Inclibus, Tilt-meter, RDS, H-Level, etc.) use the Modbus communication protocol over RS-485 serial. SISGEO digital sensors are connected to each other with a single signal cable. The parameters that are configured at the factory for each digital sensor are as follows: Upon confirmation of […]
FAQ#074 – Quel type d’enregistreur de données est nécessaire pour lire les mesures des capteurs numériques SISGEO?
Les relevés des capteurs sont lus en connectant le câble à une unité maîtresse Modbus (à savoir, OMNIAlog ou miniOMNIAlog) avec une interface RS-485 (DCE, Half duplex, no Echo) en mesure de gérer la communication avec le protocole de communication Modbus RTU SISGEO. La documentation relative au protocole de communication de SISGEO est disponible sur […]
FAQ#073 – Quel est le nombre maximal de capteurs numériques (RS-485, Modbus), le nombre maximal de chaînes et la longueur maximale du câble dans un réseau RS-485?
Last update: October 2021 All the SISGEO digitized sensors utilize a RS485 interface with Modbus protocol. 1.The maximum number of digitized sensors in a RS-485 network are 247 (theoretical) 2.The maximum number of digitized sensors chains that is possible to connect to Modbus master unit (as OMNIAlog or miniOMNIAlog) are 4. 3. About the maximum […]
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 […]
Tangab Dam, I.R. of Iran
Project Name: Tangab Dam Purpose of the project: Irrigotion & Resort Area Project location: IRAN – Shiraz Client: FARS Regional Water Authority Contractor:EV- YOL CO. Dam Type: Rock Fill With Chimney Clay Core Height above foundation: 51 m Crest length: 270 m Capacity of the Reservoir: 130,000,000 m3 End of construction: Under Construction Will Be […]
Mollasadra Dam – Iran
GENERAL INFORMATION Project Name: Mollasadra DamPurpose of the project: Agricultural & Energy productionProject location: IRAN – FARSClient: FARS Regional Water AuthorityContractor: Melli Sakhteman. CoDam Type: Earth Fill Dam With Clay CoreHeight above foundation: 72 mCrest level (above sea level): 2122 (m)Crest length: 630 mCapacity of the Reservoir: 440,000,000 m3End of construction January: 2006 INSTRUMENTS INSTALLED […]