INSTALLATION
3
15
SD 200 W/R
www.krohne.com
01/2020 - 4003851304 - MA SD 200 W/R R04 en
3.4 Connection with junction box SJB 200 W
Before you start to connect the power supply cables, note the following drawing with the
function of the terminals:
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Installation, assembly, start-up and maintenance may only be performed by personnel trained in
explosion protection
explosion protection
explosion protection
explosion protection. Additional regional standards, safety directives and laws must be observed
at all times.
CAUTION!
When connecting the power supply, always note the safety regulations of the current state of the
art. To avoid fatal injuries, destruction or damage of the device or measuring errors, also note
the following items:
•
De-energise the cables of the power supply before you start any installation works.
•
Always keep the housing of the device well closed if you do not perform any installation
works. The function of the housing is to protect the electronic equipment from dust and
moisture. When used in very cold surroundings or varying climatic conditions, take the
necessary precautions against moisture by placing a dry sachet of silica gel, for example,
inside the instrument case.
•
Check the nameplate and assure that the power supply meets the voltage and frequency of
the device.
•
Separate cable glands with effective IP67 (NEMA4X) seals for all wires for SD 200 W indicator.
•
Unused cable entries: ensure that you fit IP67 (NEMA4X) plugs to maintain rating.
•
Use a shielded and grounded cable.
INFORMATION!
The device does not require a separate power supply. The required supply for the electronics is
provided via the 4...20 mA current output.
Figure 3-1: Overview terminal connections 4...20 mA input
1
Internal
2
External
3
Max. 30 V DC
4
Terminal connection I+
5
Terminal connection I-
