Basic Guidelines

• Coriolis Mass Flow Meters
/
• Operation and Maintenance
/
• Wiring
/
• Basic Guidelines

Electrical connections should be performed in the following sequence (see Figure 2.11):

The proper sequence for connecting electrical components is crucial to ensure safety and proper functioning of the equipment. Therefore, it is essential to follow the steps in the correct order to avoid any issues. Here are the unique steps to follow for connecting electrical components:

• Remove the back cover (1) of the transmitter;
• Lead signal cables (2) and power cable (7) through the cable entries (3)
• Loosen the terminal block screws (4);
• Connect wires according to the wiring diagram shown in Appendix ;
• Tighten the terminal block screws;
• Tighten the clamp for the cable entry;
• If necessary, install the blind plug (5) instead of the unused cable entry;
• Connect the ground cable to the ground terminal (6);

By following these unique steps, you can ensure a safe and effective electrical connection.

Tighten the cover of the transmitter.

Figure 2.11 – Electrical connections

Table 2.5 – Notes for Figure 2.11

Maximum length of the power cable is 1000 ft (300 m)  with minimum wire section 0.8 mm² (AWG18).

The current and pulse outputs should use a twisted pair wire with a maximum length of 150 m and minimal wire section 0.5 mm² (AWG20).

Remote transmitters are connected through a special 9-conductor shielded cable with maximum length of 1000 ft (300 m.) The connection diagram is shown in Figure C.1 of  Appendix . After mounting and electrical connection the zero point adjustment should be performed (see paragraph 2.5.4 “Zero point adjustment”).