OMNIAlog Datalogger
The OMNIAlog has been designed “in house” by Sisgeo and is the result of over 25 years experience using different datalogger in geotechnical field. OMNIAlog is a versatile, cost effective and low powered datalogger supporting vibrating wire and all major geotechnical sensors. OMNIAlog has a Web & FTP server on board, 8 analog channels, expandable to 392 channels and 2 digital opto-isolated input ports. It can be managed by any Internet browser and also includes a 2GB USB pen drive support.
| Digital output | One relay output (for alarm, etc.): volt-free closure (low voltage 30V, 2A) |
|---|---|
| Measurement rate (MR) | Max frequency 1kHz |
| Accuracy | 0.1 Hz |
| PROTECTIONS | Electro-mechanical relays for each measuring channel: Electrical endurance: min. 2x105 operations, Mechanical endurance: 10x108 operations. Circuit protection: Gas Discharge Tubes (GDT): DC Breakdown Voltage 75V (± 20%@100V/µs) Impulse Breakdown Voltage 250V (@100V/µs ) typical Overvoltage and reverse polarity protection on power supply input. Short circuit protection on every outputs of sensor power supply. |
| Voltage (external power supply) | 10 to 30 V DC (reverse polarity protected), max 5 A |
| External rechargeable batteries | 12V DC nominal |
| Typical current drain (@12Vdc, external power supply) | Sleep mode: 100 µA ON: 62 mA - ON with ethernet connected: 87 mA - ON with display ON: 115 mA ON with display ON and ethernet connected: 142 mA Analog initialisation: 115 mA Measurement: 123 mA (with 12 mA @ 24 V sensor consumption) |
| Operating temperature | -30 to +70°C (display -20 to +70°C) |
| Humidity | 80% |
| Overvoltage category | II |
| Pollution degree | 2 |
| Sound levels | < 74dBA |
| Maximum height of use | 3000m |
