OMNIAlog Datalogger Archives

FAQ#057 – OMNIAlog powered by internal batteries: what to expect?

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 […]

FAQ#056 – Are SMTPS (SSL) and SFTP supported by OMNIAlog?

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 […]

FAQ#046 – OMNIAlog: something to know to communicate with optical fiber technology

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 […]

FAQ#045 – Using the OMNIAlog system, is it necessary the grounding system?

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”.

FAQ#043 – Can OMNIAlog acquire 8 or 16 instruments, without any multiplexer boards?

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

FAQ#042 – Is it possible to connect a rain gauge to 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 […]

FAQ#041 – 3G/2G modem or 4G/3G router: which technology should be chosen?

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 […]

FAQ#040 – Does the management of 4G/3G router change according to the power supply of OMNIAlog?

There are two communication alternatives, varying according to the power sources available on site:

FAQ#039 – 4G/3G Router: which to choose?

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 […]

FAQ#032 – Which is the reading method of the new generation of SISGEO vibrating wire readouts and loggers?

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 […]

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 […]