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Electrical installation and Wiring
8.2.2 Dosing controller 8025 Batch in panel version
The electrical connection is done directly on the terminal blocks of the electronics.
Specifications of cables and conductors Recommended values
• Cable type • Shielded (not supplied)
• Cross section of wires • 0,2...1,5 mm
2
• Length • max. 50 m
• Operating temperature • min. 80°C (min. 90°C for UL recognized version)
8.2.3 Dosing controller 8025 Batch in wall-mounting version
The electrical connection is done via terminal blocks and via five M16x1,5 cable glands.
Specifications of cables and conductors Recommended values
• Cable type • Shielded (not supplied)
• Cross section of wires • 0,2...1,5 mm
2
• Diameter of each cable if only one cable is used per
cable gland
• 5...8 mm
• Length • max. 50 m
• Operating temperature • min. 80°C
8.3 Equipotentiality of the installation
To ensure the equipotentiality of the installation (power supply - device - fluid):
→ Connect together the various earth spots in the installation to eliminate the potential differences that may
occur between different earthes.
→ Observe faultless earthing of the shield of the power supply cable, at both ends.
→ Connect the negative power supply terminal to the earth to suppress the effects of common mode currents. If
this connection cannot be made directly, a 100 nF/50 V capacitor can be fitted between the negative power
supply terminal and the earth.
→ Special attention has to be paid if the device is installed on plastic pipes because there is no direct earthing
possible. Proper earthing is performed by earthing together the metallic instruments such as pumps or valves,
that are as close as possible to the device. If no such instrument is near the device, insert metallic earth rings
inside the plastic pipes upstream and downstream the device and connect these parts to the same earth. The
earth rings must be in contact with the fluid.
English
Type 8025 - 8035 - SE35 BATCH
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