Frequently asked questions
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
When you create the dial-up remote connection to communicate with miniOMNIAlog, there could appear an error regarding the driver of the Standard Modem 56000bps used for the connection. This error appears only if you use certain versions of Windows in languages different from Italian and English. This problem could appear both configuring manually the connection […]
- Mini OMNIAlog datalogger
OMNIAlog is equipped with a microSD 2GB memory. This memory allows to save a very high number of readings. For this reason, it is necessary to bear in mind what follows: Therefore SISGEO strongly suggests to periodically download data and, later, to delete them from OMNIAlog memory. This way it is guaranteed an efficient data download.
- Mini OMNIAlog datalogger, OMNIAlog Datalogger
The dimensions of the measures file “in columns” downloaded with OMNIAlog and miniOMNIAlog vary according to the number of sensors acquired and the stored cycles of acquisition. The higher is the number of sensors acquired and the number of cycles of acquisition stored, bigger is the dimension of the file. It could be used the […]
- Mini OMNIAlog datalogger, OMNIAlog Datalogger
Yes, if miniOMNIAlog is equipped with 2G (GSM/GPRS) modem. To do so, the user must have already configured the relative web pages.
- Mini OMNIAlog datalogger
All SISGEO digitized instruments (IPIs, Tiltmeters, H-Level…) use the RS-485 serial communication protocol The RS485 protocol contemplate a termination resistor. The recommended chain connection is point-to-point (multidropped) nodes as a bus mode (line). Star, ring or multiply network connection are not recommended. SISGEO dataloggers has already a termination resistor assembled (typically 120Ω). On the opposite […]
- BH-Profile in-place Inclinometers, D-Tiltmeter - Digital MEMS Tiltmeters, H-Level - Liquid Level Systems, Horizontal In Place Inclinometers, LT-Inclibus array, MD-Profile array, Mini OMNIAlog datalogger, OMNIAlog Datalogger, 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
The loss of the local connection with the PC is normal. This happens because the communication “bus” is the same between PC and miniOMNIAlog and between miniOMNIAlog and 3G/2G modem. Therefore, if you start miniOMNIAlog from the web, the communication is directed towards the 3G/2G modem. This allows to the modem to send SMS, e-mail […]
- Mini OMNIAlog datalogger
This feature allows to not consume the internal batteries during the configuration phase or during the data download. In this way, independently from the duration of the activities above described, the internal batteries are used only during the field activities (acquisition, data dispatch etc). This guarantees a superior duration of exercise.
- Mini OMNIAlog datalogger
Yes, it is. This takes place because when you connect the PC though USB connection, miniOMNIAlog is powered by the PC. If you disconnect the USB cable, miniOMNIAlog resets to change its supply source and returns to the supply through internal battery or from an external source (solar panel or electrical supply).
- Mini OMNIAlog datalogger
No, in case you have to read the SISGEO digitized sensors, it is necessary to use an additional module of power supply (code 0OMX24V030W). This is necessary to power the instrument with the necessary power supply. This module considers the supply or from solar panel or electrical.
- Mini OMNIAlog datalogger
No, it is not possible. miniOMNIAlog, to do correct measurements, needs to be powered or from the internal battery or from an external power supply (solar panel, electrical supply) to supply to the connected instruments the right tension and current. Leaving connected miniOMNIAlog to the PC through USB cable, the instrument is powered directly to […]
- Mini OMNIAlog datalogger
Yes, it is. You have to use the tool “miniOMNIAlog communcation tool” that you could find on the USB pen supplied together with miniOMNIalog and on SISGEO website in the product section. It is not necessary to install the tool on the PC. Once you extracted it in a PC local folder, simply starting it, […]
- Mini OMNIAlog datalogger
The cause of this is problem is that Excel opens the CSV files with an incorrect encoding. In the CSV files in French, there are some particular characters (example: “é”, “à”) that, to be correctly visualized, need the encoding UNICODE UTF-8. This encoding is not that of default of Excel, so the file is codified […]
- Mini OMNIAlog datalogger, OMNIAlog Datalogger
No. The internal modem of miniOMNIAlog is a 2G (GSM/GPRS) modem and therefore it doesn’t support 3G (UTMS) and superior networks. We recommend to ascertain with your ISP (Internet Service Provider) the presence of the 2G signal in the place chosen to install the datalogger. Otherwise, miniOMNIAlog couldn’t establish an internet connection through its modem. […]
- Mini OMNIAlog datalogger
The characters supported by miniOMNIAlog webpages and by the export files are those of the standard ASCII charts (not extended). In addition to all the alphabet letters and numbers, the characters supported are: You can find an example of an ASCII chart at the following link: http://www.asciitable.com/ NOTE: The maximum number of characters for IDENTIFICATION […]
- Mini OMNIAlog datalogger
Yes, to communicate with miniOMNIAlog by USB connection a small driver (FTDI Driver) is needed, to permit to the PC to recognize the miniOMNIAlog. Usually, if your PC is already connected to the internet when you connect miniOMNIAlog, Microsoft Windows is able to download and install this driver automatically. If Microsoft Windows does not install […]
- Mini OMNIAlog datalogger
To make efficient and effective the protections of miniOMNIAlog, it is INDISPENSABLE to have a grounding system. The ground is no longer necessary to guarantee quality-measurements (“measurement ground”), but it is considered only as “functional ground”.
- Mini OMNIAlog datalogger
MiniOMNIAlog can be powered from 6 AA batteries or through an external power supply (i.e. from a little solar panel).To preserve the batteries life, during PC connection, the power supply is automatically taken from the PC through USB cable connection. In any case a power supply (internal batteries or external power supply) is necessary to […]
- Mini OMNIAlog datalogger
If the miniOMNIAlog has equipped with the internal 3G/2G modem a SIM with APN for internet connection is needed. The SIM selected must be enabled for internet traffic to send e-mail and file on FTP Server (for further details call your ISP “Internet Service Provider”). SISGEO suggest a Flat profile.
- Mini OMNIAlog datalogger
USB port in miniOMNIAlog is not isolated.For the connection between PC and miniOMNIAlog, SISGEO recommends to use an isolated USB cable:this is the professional tool to avoid and fight ground loops and equalizing currents and to protect against overvoltage, that could damage miniOMNIAlog or cause flood readings.Isolated USB cable is especially recommended when the PC […]
- Mini OMNIAlog datalogger
Only the internal GPRS module is supported.
- Mini OMNIAlog datalogger
miniOMNIAlog can be configured to send readings files via e-mail or on FTP server, using simple SMTP authentication protocol or FTP simple protocol. The protocols SFTP and SMTPS (SSL) are not supported. miniOMNIAlog does not support security layer. miniOMNIAlog also does not support encrypted authentication (eg. NTLM, MD5 etc.). However, SISGEO supplies the datalogger carrying […]
- Mini OMNIAlog datalogger
No, to manage (i.e. to configure) a miniOMNIAlog it is necessary to connect a PC directly through an USB cable.
- Mini OMNIAlog datalogger
No software is necessary to be installed: simply connect the PC to the USB port and establish a dial-up PPP connection.Last Apple Mac Operating System seems not support anymore dial-up PPP connection.
- Mini OMNIAlog datalogger
Power supply type (internal batteries or external power supply), the measure type of each analog channel (current, voltage, NTC, Wheatstone bridge) and the presence of the GPRS module are configured at the factory. The user is not able to modify these settings.
- Mini OMNIAlog datalogger
For VW sensors Sisgeo has developed automatic algorithms to search for the resonant frequency in case of environmental noise or poor signal. In this way you can distinguish between the natural frequency of the sensor and the frequency of the noise, thereby reducing measurement errors and false alarms. This method also provides improvement in the […]
- CRD-400 Multipurpose Readout, Galileo Datalogger, Mini OMNIAlog datalogger, New Leonardo Datalogger, OMNIAlog Datalogger
