Page 9 of 12
7004-00060-A Rev --.indd
8/12/09
4. Mounting
The DCT-xxx can be mounted on a top-hat rail.
Note
“Environmental conditions”
in Section
“3. Technical data” when determining the place of
installation!
Simply clip the device onto the top-hat rail (EN 50 022) (see
Fig. 1).
Fig. 1. Mounting onto a top-hat rail 35
×
15 or 35
×
7.5 mm.
5. Electrical connections
Connect leads accorcing to the instructions on nameplate.
Make sure that all cables are not live when
making the connections!
Impending danger by high power supply
voltage!
Take care of current transformers!
Also note that, …
… the data required to carry out the prescribed
measurement must correspond to those marked
on the nameplate of the DCT-xxx (
measuring
input,
measuring output and
power
supply, see Fig. 6)!
… the resistance in the output circuit
– may not
overrange
the
value
R
ext
max. [kΩ] ≤
15 V
I
AN
[mA]
(I
AN
= current output end value)
– with
power supply via output leads
(2-wire
connection, output 4 - 20 mA) dependent on
power supply H (12 - 32 V DC)
1000
0
12
24
32
0
600
Exte
rnal
resistance [Ω]
H = Power supply [V]
R
ext
max. [kΩ] =
H [V] – 12 V
20 mA
– may not
underrange
the
value
R
ext
min. [kΩ] ≥
U
AN
[V]
10 mA
(U
AN
= voltage output end value)
… the measurement output cables should be twisted
pairs and run as far as possible away from heavy
current cables!
In all other respects, observe all local regulations when
selecting the type of electrical cable and installing them!
Fig. 6. Explanation of typical model label.
1 2 3 4
5 6 7 8
– +
I
Fig. 2. AC power supply
1 2 3 4
5 6 7 8
– +
I
– +
Fig. 3. DC power supply.
1 2 3 4
5 6 7 8
I
–
+
R
ext
+
-
Fig. 4. Power supply via
output leads.
1 2 3 4
5 6 7 8
– +
I
–
Fig. 5. DC, AC power supply,
in version with built-in
DC, AC power pack.
I
= Current measuring input
= Measuring output
= Power supply