Siemens LC 500, Sitrans Terminals, Connecting SITRANS LC, Connection Diagram, Interconnection

Interconnection

Terminals

The SITRANS LC 500 is equipped with two terminal blocks, both insensitive to polarity.

One terminal block is intended for connecting the instrument cable (loop power).

The other terminal block provides the solid-state switch output.

Connecting SITRANS LC 500

The processor integrated circuit is covered by a label which contains product information and which also acts as a protective seal against moisture.

WARNING: Damage or removal of the protective label voids the warranty for the SITRANS LC 500.

1.Loosen the retaining set-screw and remove the enclosure cover.

2.Loosen the cable gland and thread the cable through it.

3.Connect the power / signal conductor wires to the current loop terminal block (any polarity).

4.Ground the enclosure: (see instructions on next page for details).

5.Check to ensure all connections are good.

6.Tighten the cable gland to form a good seal.

7.Replace the enclosure cover and tighten the retaining set-screw.

Note: If you plan to calibrate the unit using push-button adjustment, do so before replacing the cover.

Connection Diagram

ground lug

instrument system ground

measuring signal (mini-coaxial cable)

Type:

Ser.:

Date:

Rev.:

Tampering voids warranty

protective label (see warning above)

solid-state switch relay (any polarity)

4-20 mA current- loop connection (any polarity)

ground connection point for instrument system

Page 26 SITRANS LC 500 – INSTRUCTION MANUAL 7ML19985GE01