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Environmental conditions
Operating temperature: – 10 to + 55 °C
Storage temperature:
– 40 to + 70 °C
Relative humidity of
annual mean:
≤ 75%
Altitude:
2000 m max.
Indoor use statement
4. Mounting
The DFT-xxx & DFTA-xxx can be mounted on a top-hat
rail.
Note "Environmental conditions" in Section
"3. Technical data" when deteriming the place of
installation!
Simply clip the device onto the top-hat rail (EN 50 022) (see
Fig. 1).
Fig. 1. Mounting on top-hat rail 35 × 15 or 35 × 7.5 mm.
5. Electrical connections
Connect the leads according to the instructions on name-
plate.
Make sure that all cables are not live when
making the connections!
Impending danger by high input voltage or
high power supply voltage!
Note that, ...
... the data required to carry out the prescribed
measurement must correspond to those marked on
the nameplate of the DFT-xxx & DFTA-xxx
(
measuring input,
power supply, see Fig. 5)!
... the resistance in the output circuit may not over-
range the current output value
15 V
R
max. [kΩ] ≤
ext
I
AN
(I
= current output value)
AN
and not underrange the voltage output value
U
AN
R
min. [kΩ] ≥
ext
4 mA
(U
= voltage output value)
AN
... 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!
7004-00059-A Rev --.indd
measuring output and
– 12 V
resp. ≤
[mA]
– I
[mA]
AN
[V]
– +
10
11
12 13
1
2
3
4 5
U
Fig. 2. Power supply con-
nected to terminals 8 and 9.
– +
–
10
11
12 13
1
2
3
4 5
U
Fig. 4. Power supply connected
to the low tension terminal side
12 and 13.
Fig. 5. Declaration to type label.
Page 10 of 12
– +
10
11
12 13
6
7
8
9
1
2
3
4 5
–
U
Fig. 3. Power supply internal
from measuring input, without
separated power supply
connected.
= Measuring input
6
7
8
9
= Measuring output
= Power supply
6
7
8
9
8/12/09
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