Krom Schroder DL K Series, Operating Instructions

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GB-3
D
GB
F
NL
I
E
Wiring
CAUTION
Please observe the following to ensure that the
DL..K is not damaged during operation:
– If the DL..G (DL..TG) has switched a volt-
age > 24 V (> 30 V) and a current > 0.1 A at
cos φ = 1 or > 0.05 A at cos φ = 0.6 once,
the gold plating on the contacts will have been
burnt through. It can then only be operated at
this power rating or higher power rating.
– Note the switching capacity, see page 4
(Technical data).
▷
In the case of high humidity, we recommend
using a pressure switch with gold contact due to
its higher resistance to corrosion. Closed-circuit
current monitoring is recommended under dif-
ficult operating conditions.
▷
In the case of low switching capacities, such as
24 V, 8 mA, for example, we recommend using
an RC module (22 Ω, 1 μF) in air containing
silicone or oil.
1 Disconnect the system from the electrical power
supply.
M16 x 1,5:
∅
4,5 – 10 mm
COM
3
NC
1
NO
2
NO
2
NC
1
COM
3
L1(+)
5 4
3 2
Adjustment
▷
The switching pressure can be adjusted using the
hand wheel and scale. The switching pressure
differs from the adjusted setpoint by a maximum
of ± 15%, when it has been set for increasing
pressure and with a vertical diaphragm.
Type
Adjusting
range
[Pa]
Mean
switching
differential
at min. and
max. setting
[Pa]
Deviation from
the switching
point during
testing
pursuant to
EN 1854 or
by agreement min. max. min. max.
DL 3,3K 20 330 8 20 ± 7 Pa/± 15%
DL 3,5K 30 350 10 20 ± 5 Pa/± 15%
DL 4,5K 30 500 12 25 ± 5 Pa/± 15%
DL 5,1K 100 510 15 30 ± 15%
DL 8K 50 800 17 30
± 14
Pa/± 15%
DL 11K 100 1100 20 35
± 20
Pa/± 15%
DL 16K 400 1600 30 40 ± 15%
DL 24K 200 2400 45 55
± 40
Pa/± 15%
DL 40K 500 4000 70 90 ± 15%
Type
Adjusting
range
["WC]
Mean
switching
differential
at min.
and max.
setting
["WC]
Deviation from
the switching
point during
testing pursuant
to EN 1854 or
by agreement
min. max. min. max.
DL 3,5KT 0.12 1.4 0.04 0.08
± 0.02
"WC/± 15%
DL 4,5KT 0.12 2 0.05 0.10
± 0.02
"WC/± 15%
DL 8KT 0.20 3.2 0.07 0.12
± 0.06
"WC/± 15%
DL 11KT 0.4 4.4 0.08 0.14
± 0.08
"WC/± 15%
DL 16KT 1.6 6.4 0.12 0.16 ± 15%
DL 24KT 0.8 9.6 0.18 0.22
± 0.16
"WC/± 15%
DL 40KT 2.0 16.0 0.28 0.36 ± 15%
1 Disconnect the system from the electrical power
supply.
+
+
1
NC
2
NO
3
COM
Ω
5 4
3 2
NO
2
NC
1
COM
3