Frequently asked questions
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 […]
- BH-Profile in-place Inclinometers, D-Tiltmeter - Digital MEMS Tiltmeters, DEX and DEX-S 3D extenso-inclinometers, Electric Anchor Load Cells, H-Level - Liquid Level Systems, Horizontal In Place Inclinometers, LT-Inclibus array, MD-Profile array, MEMS In-place Inclinometers, Tilt Beam (TB) sensors, WR LOG wireless dataloggers
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 […]
- Convergence extensometer, Drive-in piezometers, Earth Pressure Cells, Electric Anchor Load Cells, Electrical Crackmeters and Jointmeters, Electro-hydraulic Load Cells for Steel Linings and Struts, Fixed Extensometers, Flat Jack Testing Accessories, H-Level - Liquid Level Systems, MEMS Analogue Tilt Meters, MEMS In-place Inclinometers, MEXID Miniaturized MPBX, Mini OMNIAlog datalogger, MPBX - Multipoint Borehole Extensometers, Multipoint settlement gauges, Piezo-resistive piezometers, Removable pressure transducers, Solid Resistive Load Cells for Pile Testing, Titanium piezometers, Vented pressure transducers, Wire Crackmeters, Wire Deformeters
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 […]
- BH-Profile in-place Inclinometers, H-Level - Liquid Level Systems, Horizontal In Place Inclinometers, LT-Inclibus array, MD-Profile array, MEMS In-place Inclinometers, WR LOG wireless dataloggers
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.
- BH-Profile in-place Inclinometers, D-Tiltmeter - Digital MEMS Tiltmeters, DEX and DEX-S 3D extenso-inclinometers, LT-Inclibus array, MD-Profile array, MEMS In-place Inclinometers, Tilt Beam (TB) sensors
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 […]
- BH-Profile in-place Inclinometers, DEX and DEX-S 3D extenso-inclinometers, Horizontal In Place Inclinometers, MEMS In-place Inclinometers
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 […]
- BH-Profile in-place Inclinometers, D-Tiltmeter - Digital MEMS Tiltmeters, Digital MEMS Inclinometer System, H-Level - Liquid Level Systems, Horizontal In Place Inclinometers, LT-Inclibus array, MD-Profile array, MEMS In-place Inclinometers, MEXID Miniaturized MPBX, Tilt Beam (TB) sensors
The sensors are read connecting the end cable to a Modbus Master unit (i.e. OMNIAlog or miniOMNIAlog) with RS-485 interface (DCE, Half duplex, no Echo) able to manage communication with SISGEO Modbus RTU communication protocol. SISGEO’s communication protocol is available for the release upon request. The power [W] of power supply must be chosen according […]
- BH-Profile in-place Inclinometers, D-Tiltmeter - Digital MEMS Tiltmeters, Digital MEMS Inclinometer System, H-Level - Liquid Level Systems, Horizontal In Place Inclinometers, MEMS In-place Inclinometers, Mini OMNIAlog datalogger, OMNIAlog Datalogger, Tilt Beam (TB) sensors
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 […]
- BH-Profile in-place Inclinometers, D-Tiltmeter - Digital MEMS Tiltmeters, Digital MEMS Inclinometer System, H-Level - Liquid Level Systems, Horizontal In Place Inclinometers, LT-Inclibus array, MD-Profile array, MEMS In-place Inclinometers, Mini OMNIAlog datalogger, OMNIAlog Datalogger, Tilt Beam (TB) sensors