Frequently asked questions
With new firmware (FW) versions, the MIND app is also usually updated. So, the first thing to do is to check that you have the latest version of the MIND app on your mobile device. To do this, simply go to the Google Play Store or Apple App Store, search for SISGEO MIND and check […]
- MIND app, MIND Readout
Useful dimensions are shown in the drawings below:
- D-Tiltmeter - Digital MEMS Tiltmeters, MEMS Analogue Tilt Meters
Make sure ALL the following steps are verified: Sisgeo successfully uses the mobile phone model “BLACKVIEW BV4900 PRO” for all its tests with WR-Log system
- WR LOG wireless dataloggers
Make sure that ALL the following steps are checked:1. The batteries of the mobile phone/tablet and the MIND readout are charged2. You have installed the latest version of the MIND APP (check the Google Play Store)3. The version of the mobile phone/tablet’s operating system is Android 10 or higher4. The Bluetooth version of the mobile […]
- MIND app, MIND Readout
Make sure that ALL the following steps are checked:1. The batteries of the mobile phone/tablet and the BRAIN system are charged2. You have installed the latest version of the BRAIN APP (check the Google Play Store or Apple Store)3. The version of the mobile phone/tablet’s operating system is Android 7 or higher, or iOS 11 […]
- B.R.A.IN App, B.R.A.IN MEMS probe inclinometer, T-REX Incremental Extensometer
No, this is not possible.Sisgeo calibrates each probe individually, but each probe has its own small different properties, that have a certain influence on the readings. The international standard ISO 18674-3, describing the reference reading, states that:“It is good practice to take an additional reference measurement with an independent probe that can be used as […]
- B.R.A.IN MEMS probe inclinometer, Digital MEMS Inclinometer System, KLION software for inclinometers and extensometers
Preliminary verifications: • B.R.A.IN reel’s battery is charged• Your mobile or tablet has the following minimum features: Bluetooth Low Energy BLE 4.2 or higher Android OS 7 or higher If the preliminary verification is positive, please proceed as follows:• Un-install the B.R.A.IN app from your device (if […]
- B.R.A.IN App, B.R.A.IN MEMS probe inclinometer
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
The OMNIAlog logger for FLX-Rail has a fairly high power consumption due to the router.If OMNIAlog is set to send data through the router after each acquisition (so every 5 minutes) it needs to be powered from the network (e.g. 220Vac)If OMNIAlog is set to send data through the router once a day, it can […]
- OMNIAlog Datalogger
Verify that the mobile phone/tablet used does have the minimum required features:Bluetooth Low Energy BLE 4.2APPLE iOS 14 or higherAndroid OS 9 (suggested Android OS 10 or higher) Then please check that the mobile phone/tablet has Bluetooth on and that the MIND unit has a sufficiently charged battery.
- MIND Readout
The up-date troubleshootings are available within MIND readout User Manual (see relevant DOWNLOD area or product page). The main troubleshootings are:
- MIND Readout
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
Utilize the Linear Sensitivity Factors (A, B) and Ploynomial Sensitivity Factors (A, B, C, D) of the Calibration Reports permit to obtain readings in engineerig units with a maximum error as for the Calibration Report. In the case of analogue gauges, the factors shall be applied on the electrical readings (i.e. mA, mV, digit, etc…) […]
- LT-Inclibus array, MD-Profile array
The limitations in terms of instruments to be connected on WR-LOG digital nodes are the following:
- WR LOG wireless dataloggers
ROUTER MODEL 0OMXRO4G0EU “EUROPE”:4G BANDS: B1, B3, B7, B8, B203G BANDS: B1, B8Automatic fallback to 3G ROUTER MODEL 0OMXRO4G0NA “NORTH AMERICA”:4G BANDS: B2, B4, B5, B12/B133G BANDS: B2, B5Automatic fallback to 3G ROUTER MODEL 0OMXRO4G0AP “APAC”:4G BANDS: B1, B3, B5, B7, B8, B18, B19, B21, B28, B38,B39, B40,B413G BANDS: B1, B5, B6, B8, B9, B19,B39Automatic […]
- OMNIAlog Datalogger
Technologies Band Data rate LTE Band 1 (2100)Band 1 (2100)Band 2 (1900 PCS)Band 3 (1800+)Band 4 (1700/2100 AWS-1)Band 5 (850)Band 7 (2600)Band 8 (900)Band 12 (700 ac)Band 13 (700 c)Band 18 (800 lower)Band 19 (800 upper)Band 20 (800 DD)Band 25 (1900+)Band 26 (850+)Band 28 (700 APT)Band 38 (TD 2600)Band 39 (TD 1900+)Band 40 (TD 2300)Band […]
- WR LOG wireless dataloggers
The PIN code is the same for all the B.R.A.IN and is 123456.Please follow the instruction in the user manual for the first connection of B.R.A.IN to the device.
- B.R.A.IN MEMS probe inclinometer
If the digital gauges are settled in ALWAYS ON, the WR-LOG digital node will be able to read up to 15 gauges.If the powering mode is settled in TIMED, the WR-LOG digital node will be able to read up to 30 gauges.
- WR LOG wireless dataloggers
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
B.R.A.IN App is compatible with Android OS (from ver.7) and Apple iOS (from ver.11). Moreover the device have to be compatible with Bluetooth Low Energy (BLE) v.4.2. At this link you can find all the smartphone and tablet tested by SISGEO. NOTE: the list of devices is updating time by time.
- B.R.A.IN MEMS probe inclinometer
WR-LOG system can send three type of data:– Nodes data file– Nodes health file– Compacted or Custom Compacted fileIn order to optimize the availability time, the Sampling Rate (SR) of each node must be inserted into the Gateway, so that Sisgeo STRONGLY SUGGEST to insert the sampling rates of each node into the Gateway.If the […]
- WR LOG wireless dataloggers
The available gateways for WR LOG system are: – 0LSWR868GW0 – 0LSWR915GW0 – 0LSWR923GW0 These models differ from the frequency utilized by the internal 2G/3G modem. In order to choose for the right gateway, please refer to the document to be downloaded. If more than one model is suggested for the installation Country, you have […]
- WR LOG wireless dataloggers
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
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
The TRIGGER function of the two digital inputs available on OMNIAlog datalogger is typically used with seismic station. In case of an event (earthquake), the seismic station is usually able to supply a certain tension on its output (typically 5Vdc). If this output is connected to the digital input of OMNIAlog, and OMNIAlog is conveniently […]
- 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 maximum instrument cable length from DEX probe to datalogger is 200 m. If the automatic data acquisition system includes distributed external multiplexer box, the maximum cable length is 200m from DEX probe to multiplexer box plus 200m from multiplexer box to OMNIAlog (in total 400m).
- DEX and DEX-S 3D extenso-inclinometers
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
Yes, if OMNIAlog is equipped with a 2G (GSM/GPRS) modem, connected through a serial cable to its RS232 port. OMNIAlog allows to set up alarm thresholds and the notification of these alarms could occur: – by SMS; – by email; – by FTP; – increasing the acquisition frequency; – managing a digital output (for example to manage […]
- OMNIAlog Datalogger
The cable lengths depend from many factors, first of all installation and cable protections (screen, earth, etc…). Assuming that instruments are installed in a workmanlike, for the maximum cable lengths should be followed the next suggestions: DIGITAL INSTRUMENTS: see FAQ#73 ANALOGUE INSTRUMENTS: see both downloadable documents.
- LT-Inclibus array, MD-Profile array
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
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
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
For a direct connection between PC and OMNIALOG, the right cable to use is a CROSSED cable. However, it could happen that also using a STRAIGHT LAN cable, it is possible to establish the connection with OMNIAlog. This occurs because from 2011 it has been realized a function called Auto-MDIX, that is available on some […]
- OMNIAlog Datalogger
No, when you use the modem connected on port COM RS232, OMNIAlog is configured (through its webserver) to transmit the traffic on serial port. This could cause connection problems if you connect the PC on the LAN port of OMNIAlog. To use the communication on LAN port, it is necessary to disconnect the RS232 cable […]
- OMNIAlog Datalogger
Yes. It is possible to connect to OMNIAlog and download data also by means of a Dial-up connection (with protocol PPP). The connection is established using a modem on the normal low frequency voice telephony. The connection is established through the composition of a normal telephonic number, using opportune programs called “dialer”. The maximum speed […]
- OMNIAlog Datalogger
It is possible to have access to OMNIAlog mini webservers on board using any internet browser. OMNIAlog could be configured to send data / alarms through e-mail and on FTP. In addition, it has a FTP server on board and a command line mode that uses the TELNET protocol. To use these services, OMNIAlog utilizes […]
- 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 […]
- 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
With the internal batteries power mode, OMNIAlog is automatically configured to work with reduced speed (20MHz) and the network adapter card is forcedly shut down to minimize power consumption.Normal working expects only the data download through USB flash drive, so it’s not necessary to turn on the network adapter card.OMNIAlog configuration through web pages should […]
- OMNIAlog Datalogger
OMNIAlog can be configured to send readings file by e-mail using simple authentication (SMTP) or on simple FTP.SFTP and SMTPS (SSL) are not supported.OMNIAlog does not manage the security certificates. OMNIAlog does not support also encrypted authentication (i.e. NTLM, MD5 etc.). However, SISGEO supplies the datalogger carrying an already configured SMTP account, to allow the sending […]
- 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
The optical fiber interface you can find in SISGEO catalogue is an ethernet switch with 4 10/100Base-TX ports (to link other LAN devices, in addition to OMNIAlog) and 2 100Base-FX ports (store and forward architecture). This interface is suitable for multi-mode fibres (50/125µm and 62.5/125µm) that allow lengths of maximum 2 km; for longer sections, you […]
- 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”.
- OMNIAlog Datalogger
OMNIAlog is nominally a datalogger with 8 differential channels. For every one of the 8 differential channels it is possible to connect up to: * channels with power supply shared on the same channel
- OMNIAlog Datalogger
Yes, the rain-gauge is connected to one of the two digital input placed in the posterior side of OMNIAlog. For the system autonomy, it is necessary to bear in mind that OMNIAlog connected to a rain-gauge it is always in measurement mode. Therefore, it will never go in “sleep-mode”. OMNIAlog takes a sample of the […]
- OMNIAlog Datalogger
The use of 3G/2G modem is allowed only in these events: With 3G/2G modem, the remote connection has to be considered an emergency connection. Pages uploading is extremely slow in case of inadequate signal quality. The remote connection requires a pc equipped with a GSM modem or an analogic modem connected to the phone network (not digital […]
- OMNIAlog Datalogger
There are two communication alternatives, varying according to the power sources available on site:
- OMNIAlog Datalogger
In order to connecting to OMNIAlog using the Internet, it is necessary to install a 3G router inside the OMNIAlog box and to insert a SIM card (with APN) into the router. This card should be Internet enabled (SIM card not included). DUTIES: 1 – Dynamic IP traceability 2 – Incoming traffic block (it depends from the […]
- OMNIAlog Datalogger
If the TEL-310S was supplied 2 or more month before, will be better to power it for 8 hours before starting to set-up and use it. This is to recharge the back-up battery that give troubles if it is completely discharged.
- TEL-310S Telecoordinometer
The linear thermal expansion coefficient of the flat graduated cable is 16x10E-6 m/ °C.
- BRS Magnet Extensometers, Water level meters, Staff gauges
There is not an exact ratio for each kind of soil. It depends from many factors that could change for every geological and geotechnical situation. Anyway the grouting should be similar to the soil even if is not really possible to match both characteristics. Approximate Cement/Water/Bentonite mix ratio are: – for hard and medium soil: […]
- Flush-coupled Inclinometer Casing, Inclinometer Casings, Quick Joint Inclinometer Casing
It is not possible to repair/change the manometer without disassemble the load cell. The scope of the glycerine inside of the manometer display is only to show eventual tampering of the manometer. The load cell work properly without glycerine, too.
- Hydraulic Anchor Load Cells
If the value is not indicated in the Calibration Report, you should use this formula: K = -1 digit/°C For each degree of increase of temperature you should reduce 1 digit.
- Vibrating-wire piezometers
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
DEX system has been designed for automatic soil settlement monitoring (vertical movement) in unattended location. DEX system consists of a string of DEX probes installed in borehole within a ABS inclinometer casing. DEX-S, the combined inclinometer-settlement probe, provides both horizontal movements (X, Y-axis) and vertical settlement (Z-axis) for 3-D borehole automatic profile monitoring.
- DEX and DEX-S 3D extenso-inclinometers
NATM pressure cells are normally used to measure tangential and radial stresses in concrete tunnel lining. They are embedded in concrete and after curing the cell shall be repressurized to mantain the intimate contact between the pessure pad and the surrounding material.
- Hydraulic Pressure Cells
The gauge factors for VW strain-gauges are generic factors calculated from the dimensions and the physical properties of the gauge material. The VW strain-gauges arep roduced in series with industrial method, so each strain gauge is equal to the other: it means that the gauge factor of VW strain gauges do not change. The Gauge […]
- Vibrating Wire Strain Gauges
Yes, vibrating wire strain-gauges, as well as all other Sisgeo’s vibrating wire instruments, are equipped with a built-in NTC thermistor YSI 44005 type (3000 Ohm at 25°C). Thermistor is included in the instrument price and therefore there is not additional cost for it.
- Spot Weldable Strain Gauges, Vibrating Wire Strain Gauges
We recommend to use the following mineral oil with selected viscosity: SAE 50-90 for direct pendulums SAE-10 for inverted pendulums.
- Direct And Inverted Pendulums
If the water filled casing is lighter than grout backfill the uplift force of grout varies with the height of the grout column. If the column is short, the uplift force is low and the casing can be held in place by its own weight or with very little down-force applied from the top. When […]
- Flush-coupled Inclinometer Casing, Inclinometer Casings, Quick Joint Inclinometer Casing
A good practice for getting good readings with inclinometer probe is to follow these simple operations: – Use the same probe for each survey, if possible; – if you must use a different probe, be sure to note the serial number of the probe used for each survey, so any necessary corrections can be made […]
- Digital MEMS Inclinometer System
A good practice for the inclinometer users is to follow these simple recommendations: – when you connect the inclinometer operating cable to the probe, avoid overtightening the nut, since this will flatten the O-ring and reduce its effectiveness; – use a pulley assembly. It protects the inclinometer operating cable and provides a good reference index; […]
- Digital MEMS Inclinometer System
Borehole should be drilled as close to the vertical as possible, however 2/3 degrees from vertical are normally accepted in specifications.
- Flush-coupled Inclinometer Casing, Inclinometer Casings, Quick Joint Inclinometer Casing
NATM pressure cells are normally used to measure tangential and radial stresses in concrete tunnel lining. They are embedded in concrete and after curing the cell shall be repressurized to mantain the intimate contact between the pessure pad and the surrounding material.
- Hydraulic Pressure Cells
Yes it is. The pump is filled at factory under vacuum with de-aired oil. For normal use within concrete the oil inside the pump is enough to repressurize 50 pcs. of NATM pressure cells. The oil we use is Edwards Ultra-grade 19 type for vacuum-pump use.
- Hydraulic Pressure Cells
The measurement of total pressure in geomechanics, even if is one of the most interesting parameters for the designer, is generally considered not reliable. Case histories report more nonsuccessful examples than for all the other types of measurements. Theoretical studies made by many researches have highlighted the critical parameters in the design and manufacturing of […]
- Earth Pressure Cells
HAE (High air entry) filters are normally used to monitor pore pressure in the clay core dams and saturated low permeability soils. “High air entry” means high-resistance to air entry when the filter is saturated. The surface tension of the water in the very fine porus of the filter prevents entry of air. The HAE […]
- Piezo-resistive piezometers, Titanium piezometers, 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.
- Drive-in piezometers, Removable pressure transducers, Vibrating Wire multipoint piezometers, Vibrating-wire piezometers
Yes, we sell a kit which includes instructions, probe, weights, rexin, and any other parts.
- Water level meters, Staff gauges
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.
- Drive-in piezometers, Removable pressure transducers, Vibrating Wire multipoint piezometers, Vibrating-wire piezometers
The main factors which influence the anchor measurements are: – axial misalignment of the jack– difference in diameter between the jack and the load cell. These factors cause bending of the bearing plate between the load cell and the jack and affects the response of the cell. To minimise this effect use the genuine distribution […]
- Electric Anchor Load Cells, Hydraulic Anchor Load Cells
The arms of the spider only keep the magnet in place while grouting, but the grout couples the magnet to the surroundig soil. Grout mix shall be controlled (ratio water/cement) during grouting operation according to the soil application.
- BRS Magnet Extensometers
Sisgeo liquid mix is de-aired at factory and it is supplied sealed in special tank. However in the DSM reference gauge there is a high sensitive sensor which is able to monitor the weight of the liquid within the reservoir. In the case of the air bubbles come over decreasing the level of the liquid […]
- H-Level - Liquid Level Systems, Multipoint settlement gauges
Sisgeo liquid is a de-aired water-glycole mix (70% – 30%). The freezing temperature is about -15°C.
- H-Level - Liquid Level Systems, Multipoint settlement gauges
Any factor (water, mud etc.) that could dirty the internal part of the “SUS” optical sensor unit’s cover can influence the TEL-310S correct functioning. So it is essential to protect properly the “SUS” optical sensor unit from weather conditions, leaving anyway the access possibility for cleaning/maintenance. In any case, TEL-310S has an auto-diagnostics able to […]
- TEL-310S Telecoordinometer
The 0TEL310CAL0 kit includes a drilling template for the wall where the “ANS” support will be placed, and a template to be placed on the “SUS” optical sensor unit for a possible functional check on field (pendulum’s wire simulation).
- TEL-310S Telecoordinometer
No kit is needed. The “CUS” and “PWS” units are placed in aluminum boxes ready to be fixed on the wall through four M6 screws (not included).
- TEL-310S Telecoordinometer
The pendulum readout fixing plate has four holes so it can be fixed, through screws, to the “ANS” adjustable support.
- Optical Pendulum Readout, TEL-310S Telecoordinometer
Since the “ANS” support is articulated, it can be fixed to the floor; this can be useful in case the pendulum’s wire is too far from the walls.
- TEL-310S Telecoordinometer
The TEL-310S telecoordinometer has the following measuring range: To use the “ANS” adjustable support you must have the “X” axis parallel to the wall: so it is not possible to fix the “SUS” optical sensor unit perpendicular to the wall using the “ANS” adjustable support.
- TEL-310S Telecoordinometer
To fix the “SUS” optical sensor unit through the “ANS” support, it is necessary that the direct pendulum’s wire is at a distance of d=230 mm. from the wall. To achieve that, the direct pendulum’s tank has to be placed at a distance of D=20 mm. from the wall: in this way is guaranteed that […]
- Direct And Inverted Pendulums, TEL-310S Telecoordinometer
The “ANS” adjustable support (0TEL310ANS0) has been developed to support and fix the “SUS” optical sensor unit (0TEL310SUS0) of the new TEL-310S telecoordinometer. The support is fixed to the wall through two M16 threaded bars, of 370 mm. length (supplied). Once the “SUS” optical sensor unit is fixed to the support, it is possible to […]
- TEL-310S Telecoordinometer
It is possible to use the pendulum optical manual readout instead of TEL-310S “SUS” optical sensor unit without any regulation of the “ANS” support. It is also possible to start the pendulum’s monitoring with the pendulum optical manual readout and then automate the readings with TEL-310S telecoordinometer , without changing its initial zero.
- Optical Pendulum Readout, TEL-310S Telecoordinometer