Electrical Connection; Safety Requirements - Technische Alternative ESR 21 Mode D'emploi

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 output load amounts to (VD) 1.5A in the speed version and
(VR) 2.5A in the relay version. If filter pumps are directly connected, their rating plate must be
minded. The appropriate strip terminal must be used for all protective conductors.
Note: The system has to be grounded properly and furnished with surge arresters to pro-
tect it from damage due to lightening. Sensor failures due to storms and static electricity are
usually the result of faulty construction.
The sensor masses
Data link (DL)
The bi-directional data link was developed for the 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 ca-
bles, we recommend the use of shielded cable.
Interface to PC: The data is cached via the data converter D-LOGG, Bootloader BL-NET
or C.M.I. interface and transferred to the PC on request. BL-NET and C.M.I. require a sepa-
rate 12V power unit for power supply.
External sensors: Reading the values of external sensors with DL connector

Safety requirements

The unit is state-of-the-art technology and fulfils all of the necessary safety regulations. It
may only be used in accordance with the technical data and the safety requirements and
regulations below. In using the unit, the safety regulations and laws for each specific applica-
tion also have to be upheld.
Safe operation is no possible if the unit
.... is obviously damaged,
.... not longer works,
.... was stored for a long time under poor conditions.
If these cases apply, the unit must be taken out of operation and prevented from acci-
dentally going into operation.
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are internally connected and can be exchanged as needed.