WIKA HLS-M Betriebsanleitung Seite 12

5. Commissioning, operation
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With capacitive loads, cable lengths greater than 50 m or the
connection to a process control system with capacitive input,
to limit the peak current, a protective resistance of 47 Ω (with
25 VA contacts) should be connected in series.
EN
Current limitation with
capacitive loads, e.g. PLC's,
PCS's and cable lengths
= 47 Ω with contacts up to 25 VA
R
s
C = internal capacitance
1
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The following maximum values for the switching power must
be observed: 50 V AC; 25 VA; 0.5 A, 50 V DC; 25 W; 0.5 A
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An overloading of the switch can lead to the destruction of the
integrated reed contact. This can lead to a malfunction in the
downstream control and thus lead to injury to personnel or
damage to equipment.
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With the switches, it is possible for the case to become live in
the event of a malfunction. Any contact can result in physical
or even fatal injury. These switch may only be operated on
safety extra-low voltage in accordance with VDE0100 (e.g.
contact protection relay) or must be fitted so that the switch
is electrically connected to the equipotential bonding.
12
S1
C
1
SPS
operating instructions magnetic float switch, model HLS-M
> 50 m