Remote measuring points are easier to manage when sensor data is captured, stored and forwarded without regular site visits. DLF4 records values from up to 7 connected sensors and transfers them automatically to the ACS Web Portal or an FTP server via mobile network. It supports analog 0/4…20 mA, 0…10 V and 0…2200 Ohm signals, RS485 Modbus RTU and digital switch or counter inputs.
Outdoor installations are supported by flexible power concepts: 19 Ah or 35 Ah lithium battery, 20 Ah LiION accumulator, DC supply from 7…32 Vdc or PV module charging. The hermetically sealed housing is overflow-proof up to 3 m and rated ingress protection (IP68), helping maintain operation where water, weather and hard-to-reach locations complicate maintenance.
Configuration is handled on site via Bluetooth® 5.2 or remotely through the web portal. Non-volatile Dataflash memory stores \geq 800,000 measured values, while alarm management can report flood or low-water risks early.
Ai1/Ai2 process 0/4…20 mA and 0…10 V signals, while Ai3 covers resistance signals from 0…2200 Ohm.
Ci1/Ci2 provide bidirectional RS485 communication using Modbus RTU at 9600 Baud, configurable from 4800…38400 Baud.
Di1/Di2 can be configured as switch inputs or pulse counters for functions such as float switches or flow meters.
Uo1…Uo4 provide time-limited sensor supply. Uo5 can be used as an alarm control output or as a continuous supply for an external device.
Bluetooth® communication supports on-site operation with the SmartConnect app. The password for first access is the device serial number.
The integrated SIM links the device to the web portal. An external Micro-SIM can be used for transfer to a user-provided FTP server.
The aluminum wall housing can be mounted directly to a wall or, with a bracket, to a mast with 50…90 mm diameter.
