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Electrical connection
Caution: Only a trained electrician may provide the electrical connection in compliance
with local guidelines. The sensor lines must not be laid in the same cable channel as the
supply voltage. The maximum load of the output is 3A = 700W! If filter pumps are directly
connected, their rating plate must be minded. The appropriate strip terminal must be used for
all protective conductors.
Note: To provide protection from lightening, the system has to be grounded in accordance
with the regulations - sensor failures due to storms or static electricity are usually caused by
improper grounding.
The sensor masses are internally connected and can be exchanged as needed.
Control output (0 – 10V / PWM)
This output is intended for the speed control of the latest generation electronic pumps
(PWM) or for controlling the burner performance (0 - 10V). It can be operated via respective
menu functions parallel to the output.
Data link (DL)
The bi-directional data link was developed for the ESR/UVR series and is only compatible
with products of the Technische Alternative company. Any cable with a cross section of 0.75
mm² can be used for the data link (e.g. twin-strand) having a max. length of 30 m. For longer
cables, we recommend the use of shielded cable.
Interface to PC: The data is cached via the data converter D-LOGG or the “Bootload-
er” BL-NET and transferred to the PC on request. An individual power pack (CAN-NT) is
recommended for supplying power to the BL-NET!
External sensors: Reading the values of external sensors with DL connector
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