Electrical connections
CI/FEX300/FEX500-EN FEX300, FEX500 EN - 39
5.5.4 Protection class IP 68
For flowmeter sensors with IP 68 degree of protection, the maximum flooding height is 5 m
(16.4 ft). The supplied cable (part no. D173D027U01 or D173D031U01) fulfills all submersion
requirements
G00171
1
Fig. 36
1 Max. flooding height 5 m (16.4 ft)
The flowmeter sensor is type-tested in accordance with EN 60529. Test conditions: 14 days at a
flooding height of 5 m (16.4 ft).
5.5.4.1 Connection
1. Use the su
pplied cable to connect the sensor and the transmitter.
2. Connect the cable in the terminal box of the sensor.
3. Route the cable from the terminal box to above the maximum flooding height of 5 m (16.4 ft).
4. Tighten the cable gland.
5. Carefully seal the terminal box. Make sure the gasket for the cover is seated properly.
Notice - Potentially adverse effect on IP 68 protection class
The sensor's IP 68 protection class may be impaired by damage to the signal cable.
The sheathing of the signal cable must not be damaged. Otherwise, the protection class IP 68
for the sensor cannot be ensured.
Important (Note)
As an option, the flowmeter sensor can be ordered with signal cable already connected and a
molded terminal box.
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