WIKA NG 63 Betriebsanleitung Seite 24

5. Commissioning, operation
Safety instructions for installation
Install instruments in accordance with the manufacturer's
■
instructions and the valid standards and regulations.
EN
Only connect circuits with the same voltage and type of
■
protection to the switch contacts and connection leads of the
instrument.
Limit the maximum current, using external measures, to a
■
value of ≤ 100 mA per circuit.
Size the connection leads for the largest current strength in the
■
circuits and ensure sufficient UV resistance and mechanical
stability.
With flexible connection leads, use isolated end splices. Max.
■
permissible conductor cross-section 1.5 mm².
Connection leads must be suited to the ambient temperature
■
range of the application.
The connection leads must also be suitable for the supplied
■
cable gland.
Seal the cable entry with the appropriate approved cable
■
glands.
Cable outlet
Install the connection cables securely.
■
24 Pressure gauge with reed contact model 851-A, for Ex areas