Specifications :
General
- Dimensions MRL-7: 180 x 150 x 60 mm | MRL-7B (with integrated battery): 180 x 150 x 60 mm (W x H x D).
- Housing aluminium box, powder coated.
- Protection IP 67.
- Power supply
- internal battery (MRL-7B): gel battery, 12 V 4 Ah.
- external battery: max 12 V / 50 Ah.
- external power supply: 6 … 30 V DC.
- integrated solar charge controller for solar panel with max 40 W / 12 V.
- Sensor supply 5 /100 mA or 12 V / 200 mA.
- Reference voltage 2.5 V for potentiometer (max. 4 mA).
- Display LCD unit with digital contrast setting, 2 x 16 characters; LED background illumination with splash water proof cover and extended temperature range.
- Keypad 5 keys for reading current measurement values and observer confirmations/inputs.
- Number of channels up to 99.
- Memory (internal) 4 MB failure-resistant flash memory (equivalent to approx. 500,000 measurement values).
- Operating temperature -35 °C … +60 °C (storage temperature: -35 °C … +60 °C).
- Installation easy installation; attaching to walls without extra housing.
- Functions date values, intensity, maximum, aggregate values, mean values etc.
- Deep discharge protection for logger and for MRL-7 supplied sensors.
Interfaces
- Inputs
- 4 x analogue 0 … 2.5 V (thereof 1 x PT-100 4-wire connection, 1 x NTC, 1 x 0 … 0.3 V).
- 2 x counters (thereof 1 x impulse, 1 x shaft encoder up and down).
- 1 x frequency input for wind speed and wind gust.
- 1 x potentiometer input for wind direction (replaces 1 x counter).
- Digital sensor interfaces 1 x RS 485 (SOMMER-Bus / ASCII protocols), 1 x RS-485 for web cam, 1 x SDI-12 interface.
- User Interface 1 x communication interface: RS-232: transfer rete 9.6 to 115 kBd, 1 x USB host (only for data readout of data on USB flash drive), 1 x Bluetooth.
- Output (digital resp. analogue) 4 x outputs (thereof 3 x switching outputs for alarm management).
Data transmission
- Modem integrated remote data transmission with 2G, 3G or 4G modem.
- Target server up to three target servers (http / ftp) simultaneously.
- Further characteristics
- Independent transmission intervals possible.
- IP call activation for remote servicing (permanent or limited over time); fixed IP.
- Time synchronisation via NTP (Network Time Protocol).
- GPS (optionally) GPS for location detection.
Catalog : PDF
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