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ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
Level Monitors Type NS43
MIN/MAX-Regulation, protection from overflow and unlubricated operation
The level monitor NS43 regulates
the level of liquid in a container
between 2 electrodes. In the
normal operation the level of
the liquid is situated between
the electrodes E2 and E3. The
relay K2 tightens, if the level E3 is
achieved and drops, if E2 is fallen
below. Over the output contacts (1
change-over switch) a pump or a
valve can be controlled depending
upon case of application and so
the level be
regulated. If the level continues to
rise in an incident and if the
electrode achieves E4, then a
message takes place via relay
K3 (drops). In the reverse case
(level under E1) the relay K1 drops
and protects e.g. a pump against
running dry.
LEDS signal, which electrodes
are moistened.
Level monitoring of leading liquids
MIN/MAX level regulation
protection from overow
protection from running dry
sensitivity adjustable 5... 250 k?
LED for level display / alarm
Application:
In the galvanotechnics and everywhere, where the
level of a leading liquid must be held on a certain level
and at the same time a monitoring on overow and/or
no-load operation is necessary.
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AC/DC 24-240 V
AC 20-264 V, DC 20-297 V
≤ 5 VA, < 3 W
0,45 - 62 Hz
3 CO
Type 2 see "general technical information"
approx. 1 s
approx. 1 s
see "general technical information"
-20°C...+60°C
5
< AC 3 V
e (≤ 0,1 mA)
max. 500 nF = approx. 2500 m
max. 100 nF = approx. 500 m
max. 10 nF = approx. 50 m
Design K: 75 x 22,5 x 115 mm
Snap mounting on 35 mm standard rail
IP 30/ IP 20
approx. 130 g
Technical Data
Supply voltage Us
Admissible tolerance Us
Power consumption
Frequency
Relay
Contact
Pick up delay
Release delay
Test conditions
Rated ambient temperature
range
Number of electrodes
Voltage at electrodes
Line capacity at 5 kΩ
at 25 kΩ
at 250 kΩ
Dimensions (h x w x d) mm
Attachment
Protection housing/terminals
Weight
A2A1
K1 K2
2224121411
K3
3234
E2 E3E1E0 E4
ge ge ge
rtrt
NS43
Min.
Max.
E0
E1
E2
E3
E4
U
s
ALARM
Low
ALARM
High
Elektrodes LED Relay Contact
E1 not dipped E0-red K1 o 11-12 closed ALARM Low (running dry)
E1 dipped E1-ye K1 on 11-14 closed
E2 dipped E2-ye K2 o 11-22 closed
E3 dipped E3-ye K2 on 11-24 closed
(K2 on until E2 not dipped)
E4 dipped E4-red K3 o 11-32 closed ALARM High (overow)
2015-10-20
NS43
Part number: V223267
Level Monitors
