Siemens LC 500 사용자 설명서
Page 26
SITRANS LC 500 – INSTRUCTION MANUAL
7ML19985GE01
mmmmm
Int
er
connect
ion
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.
and which also acts as a protective seal against moisture.
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.
Connection Diagram
WARNING: Damage or removal of the protective label voids the
warranty for the SITRANS LC 500.
Note:
If you plan to calibrate the unit using push-button adjustment, do so before
replacing the cover.
Type:
Ser.:
Date:
Rev.:
Ser.:
Date:
Rev.:
Tampering voids warranty
measuring signal
(mini-coaxial cable)
ground connection point
for instrument system
ground lug
instrument
system ground
4-20 mA current-
loop connection
(any polarity)
solid-state switch
relay (any polarity)
protective label
(see warning
above)