| MODELS | |
|---|---|
| MRL-8 | with 4G modem |
| MRL-8E | with 4G modem and Ethernet connection |
| MRL-8B | with 4G modem and internal 5 Ah battery |
| MRL-8IE | with input extension in the same housing |
| GENERAL | |
| Dimensions |
MRL-8: 180 × 150 × 60 mm (W × H × D) MRL-8E / MRL-8IE: 180 × 150 × 100 mm (W × H × D) MRL-8B: 180 × 150 × 160 mm (W × H × D) |
| Housing | Aluminium housing, powder-coated |
| Protection | IP67 |
| Power supply |
Internal battery (MRL-8B): Gel battery, 12 V / 5 Ah External battery: max. 12 V / 80 Ah External power supply: 6–30 V DC Integrated solar charge controller for solar panels up to 50 W / 12 V |
| Sensor supply | 5 V / 100 mA or 12 V / 200 mA |
| Reference voltage | 2.5 V for potentiometer (max. 4 mA) |
| Display | LCD display with digital contrast adjustment, 2 × 16 characters, LED backlight, splash-proof cover and extended temperature range |
| Keypad | 5 keys for reading measurement values and observer confirmations/inputs |
| Number of channels | Up to 99 |
| Memory (internal) | 4 MB fail-safe flash memory (approx. 500,000 measurement values) |
| Operating temperature | -35 °C to +60 °C (storage: -35 °C to +60 °C) |
| Installation | Easy wall mounting without additional housing |
| Functions | Date values, intensity, maximum, aggregate values, mean values, etc. |
| Deep discharge protection | For logger and MRL-7 supplied sensors |
| INTERFACES | |
| Inputs |
4 × analogue (0–2.5 V), including: • 1 × PT-100 (4-wire) • 1 × NTC • 1 × 0–0.3 V 2 × counter inputs: 1 × frequency input (wind speed / gust) |
| Digital sensor interfaces | 1 × RS-485 (SOMMER Bus / ASCII), 1 × RS-485 (Webcam), 1 × SDI-12 |
| User interface | RS-232 (9.6–115 kBd), USB host (USB flash drive data export), Bluetooth |
| Outputs | 4 outputs (including 3 switching outputs for alarm management) |
| Expansion | Inputs can be extended with an MRL-IE |
| DATA TRANSMISSION | |
| Modem | Integrated remote data transmission via 2G / 4G modem |
| Ethernet | Integrated Ethernet data transmission (data push) |
| Satellite | Integrated remote data transmission via INMARSAT modem with omnidirectional antenna |
| Target server | Up to three target servers simultaneously (HTTP, HTTPS, FTP, FTPS) |
| Further characteristics |
Independent transmission intervals IP call activation for remote servicing (permanent or time-limited) Fixed or dynamic IP support Time synchronisation via NTP (Network Time Protocol) |
Weatherproof Data Logger with Integrated Data Transmission
Collecting, processing, storing and transmitting of monitoring data – easy, convenient and quick. The MRL-8 is a battery run data, modem supported logger with splash-proof housing, USB data read-out functions and integrated solar charge controller. The very energy efficient operating mode as well as a weatherproof box qualifies the MRL-8 for data applications in remote areas far from any infrastructure.
* Available on specific versions.
Similar to the “smaller” MRL-6, also the MRL-8 is used for applications in environmental monitoring, where low maintenance and a very energy saving operation is needed as for example at sites with no landline power network or where no additional switch cabinet shall be installed. The MRL-8 provides comfortable data transmission through its integrated modem. For this reason all-in-one solutions (sensor, data collection and transmission) can be realised very easily. In addition, remote access as well as wireless data read out and storing are possible.
“HailSens represents the culmination of years of dedicated research. As the only hail sensor that seamlessly integrates with hailpad data – the gold standard for scientists worldwide.”
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