36 FEP630, FEH630 ELECTROMAGNETIC FLOWMETER | OI/FEP630/FEH630-EN REV. D
… 6 Electrical connections
… Connection with IP rating IP 68
Electrical connection
NOTICE
Adverse effect on the IP rating IP 68
The IP rating IP 68 of the sensor may be adversely affected as
a result of damage to the signal cable.
• The sheathing of the signal cable must not be damaged.
1. Use the supplied signal cable to connect the sensor and the
transmitter.
2. Connect the signal 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.
Note
As an option, the sensor can be ordered with the signal cable
already connected to the sensor and the terminal box already
potted.
Potting the terminal box on-site
CAUTION
Danger to health!
The two-component potting compound is toxic – observe all
relevant safety measures!
Comply with the safety data sheet of the two-component
potting compound before preparations are started.
Risk notes:
• R20: Damaging to health when inhaled.
• R36/37/38: Irritates the eyes, respiratory organs and
the skin.
• R42/43: Sensitization through inhaling and skin
contact is possible.
Safety advice:
• S23: Do not inhale gas/smoke/humidity/aerosol.
• S24: Avoid contact with the skin.
• S37: Wear suited protective gloves.
• S63: In case of an accident due to inhaling: take the
injured person out into the fresh air to rest.
If the terminal box is to be potted subsequently on-site, a special
two-component potting compound can be ordered separately
(order no. D141B038U01). Potting is only possible if the sensor is
installed horizontally. Observe the following instructions during
work activity:
Preparation
• Complete the installation before potting in order to avoid
moisture penetration. Before starting, check all the
connections for correct fitting and stability
• Do not overfill the terminal box. Keep the potting compound
away from the O-ring and the gasket / groove (see
Figure 44).
• Prevent the two-component potting compound from
penetrating the cable conduit (Conduit) for an ½ in NPT
installation (if used).
Procedure
G12152
1
2
3
4
5
1 Packaging bag
2 Connection clamp
3 Two-component potting
compound
4 Drying bag
5 Maximum fill level
Figure 44: Terminal box sealing
1. Cut open the protective enclosure of the two-component
potting compound (see packing).
2. Remove the connection clamp of the potting compound.
3. Knead both components thoroughly until a good mix is
reached.
4. Cut open the bag at a corner. Perform work activity within
30 minutes.
5. Carefully fill the terminal box with the two-component
potting compound until the connection cable is covered.
6. Wait a few hours before closing the cover in order to allow
the compound to dry, and to release any possible gas.
7. Ensure that the packaging material and the drying bag are
disposed of in an environmentally sound manner.
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