24
Installation
Type 8202/8222
A
→ Check that seal
"A" is set on the
cover and that it
is not damaged.
Replace the seal
if necessary.
→ Carefully insert the
transmitter into the
fitting.
→ Position the trans-
mitter in such a
way that the mar-
kings located on
either side of the
electronics box are
parallel to the pipe.
→ Tighten the nut on
the fitting.
Fig. 17: Installation of the transmitter 8222 in a fitting
8.4. Wiring
danger
Risk of injury due to electrical voltage.
• Shut down and isolate the electrical power source before
carrying out work on the system.
• Observe all applicable accident protection and safety regula-
tions for electrical equipment.
• Use a high quality electrical power supply (filtered
and regulated).
• Make sure the installation is equipotential. See chap.
8.4.1.
8.4.1. Equipotentiality of the installation
To ensure the equipotentiality of the installation (power supply -
device - medium):
→ Connect together the various earth spots in the installation to
eliminate the potential differences that may occur between dif-
ferent earthes.
→ Observe faultless grounding of the shield of the power supply
cable.
→ 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
devices such as pumps or valves, that are as close as possible
to the device.
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