ABB ProcessMaster FEP300 Manual Del Usuario página 113

Electrical connections
5.5.4.2 Potting the terminal box
On sensors without explosion protection or explosion protection Zone 2, Div 2, the terminal box
can be subsequently potted.
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:
WARNING - General dangers!
The two-component potting compound is toxic – observe all relevant safety measures!
Hazard warnings: R20, R36 / 37 / 38, R42 / 43
Harmful by inhalation. Avoid direct skin contact. Irritating to eyes.
Safety advice: P4, S23-A, S24 / 25, S26, S37, S38
Wear suitable protective gloves and ensure sufficient ventilation.
Follow the instructions that are provided by the manufacturer prior to starting any
preparations.
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 fig. Fig. 37)
• Prevent the two-component potting compound from penetrating the cable conduit if an NPT
1/2" installation is used
Procedure
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.
Fig. 37
1 Packing bag
2 Connection clamp
3 Two-component potting compound
40 - EN
1 2 3
5
FEX300, FEX500
4
4 Max. filling level
5 Drying bag
CI/FEX300/FEX500-X1
G00676