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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
Level Monitors
Level Monitor Type NS43V
Switchgear-mount Housing
The NS unit protects aggregates
and plants against dry running,
overow, leakage damages and
unnecessary loss of liquids.
It controls and monitors levels of
liquids in waste-water, pools, sh
farms and whereever a certain
level should be maintained or
dosed.
Depending on the application and
the set program, it controls the
level between 2 or 3 electrodes
by means of opening or closing
dose or drain of a container.
The top and the lowest electrode
protect from overow or running
dry.
An electrolytic corrosion of the electrodes as well as
detonating gas production is excluded due to a AC
current measuring path.
The universal supply voltage AC/DC 24-240 V allows to
connect the relay to any common mains.The isolation
between electronics (= electrodes) and supply voltage
avoids malfunctions caused by potential spreading,
also at DC-supplys.
Monitoring of up to 4 levels
4 relays with change-over contacts (co)
Sensitivity adjustable 5...250 kΩ
Switching delay of relays adjustable 0...10 s
Switching-delay of alarms (on/o) adjustable
0...10 s
Basic programs (selectable with DIP-switches) for
various applications
Universal supply voltage AC/DC 24-240 V
Terminals pluggable
Housing for DIN-rail or wall-mount,
mounting height 55 mm, 70 mm wide
AC/DC 24-240V, <3W, <6VA
AC 20-264 V, DC 20,4-297 V,
Level electrodes E1, E2, E3, E4, reference E0
<3Ve / <100 µA
adjustable 5 kΩ...250 kΩ ± 25%
5 kΩ/approx. 500m/100 nF, 250
kΩ/approx. 50m/10nF
approx. 15% + 5 kΩ
adjustable 0,1...10 s
Type 2 see "general technical informations"
4 x 1 changeover-contact
see "general technical informations"
-20…+55°C
Design V6: 90 x 105 x 58 [mm],
mounting height 55 mm
On 35 mm DIN-rail or screws M4
IP 30 / IP 20 (terminals pluggable)
approx. 250 g
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Technical Data
The NS level monitor is an elec-
tronic device for monitoring levels
of conductive liquids.
The monitoring of the levels is
eected vis electrodes, which
are dipped or set free according
to liquid level.
All conductive liquids can be
monitored, preferrably, however,
water, also of dierent degree of
hardness.
To adapt the relay to the conductivity of the liquid and to
the capacitance of (long) cables, the switching limit can
be adjusted app. 5 kΩ ... 250 kΩ. Thus it also is possible
to tell between the liquid and foam over the liquid.
Supply voltage Us
Electrode connection
max. voltage/current
Sensitivity
max. cable-length/capacity
Hysteresis
Switching delay
Relay output
Test conditions
Rated ambient temperature
Dimensions h x b x d
Attachment
Protection housing / terminals
Weight
NS43V
Part number: V223313
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