NIVELCO NIVOCONT K User Manual

Thank you for choosing a NIVELCO instrument!
1. APPLICATION
The conductive operating principle is suitable for liquids with a specific conductivity of over
10 μS / cm. The signal processor detects the resistance between the auxiliary probe and the
sensing probes. Conductive devices can only be used to decide whether the level of the mea-
sured medium is at a particular level or not. The level of detection is determined by the length
of the probe stem extending into the tank.
The level switch consists of the NIVOCONT KRK–512–5 signal processor and probes select-
ed for the particular application. The part of the probe that can be screwed into the tank is
NIVOCONT KS–0 probe head carrying one or more KLN–2 probe stems. If the
inside of the tank is coated or non-conductive, an auxiliary probe has to be installed, which is
longer than both sensing probes. If the tank's walls are conductive, they can be used as an
auxiliary probe.Conductive switches can control the filling and emptying of the tank or generic
level detection.
2. TECHNICAL DATA
2.1 GENERAL DATA
2.1.1 Switch
Probe voltage
Probe current
Sensitivity
Max. cable capacitance
Response time
Mechanical accuracy
Delay
t delay
1
Relay output
Switching voltage
Switching current
Switching power
Min. output power DC
Mechanical life-span
Electrical life-span
Power supply U
n
Voltage range allowed
Power consumption
Ambient temperature
Electrical connection
Electrical protection
Overvoltage category*
Pollution degree
Ingress protection
Mechanical connection
Weight
*EN61010-1, tested with 3 kV
2.4 DIMENSIONS
Switch
KRK–512–
Uninsulated base probe
Probe Socket
KRK–512–
KRK–512–5
max. 3.5 V AC
< 0.1 mA AC
Adjustable: 5...100 kΩ
800 nF (5 kΩ) 100nF (100 kΩ)
max. 400 ms
±5%
Adjustable: 0.5...10 s
1.5 s
1× toggle (SPDT)
250 V AC1, 24 V DC
8 A AC1
2000 VA AC1, 240 W DC
500 mW
1 × 10 switchings
7
1 × 10 switchings
5
24...240 V AC/DC (AC 50–60 Hz)
nominal voltage –15%...+10%
max. 2 VA
−20...+55 °C (–4...+131 °F)
max. 2.5 mm (AWG14)
2
/ with insulation 1.5 mm (AWG16)
2
Class II
II
2
IP20
DIN (EN 60715) rail
72 g (0.16 lb)
Pg7
Cable Probe
KSK–201
2.3 ACCESSORIES
– User's Manual
– Warranty Card
– EU declaration of conformity
– Seal (2 mm [0.08"] thick)
(KLINGER OILIT):
1× ⅜" (KSP–201, KSS–201, KSN–201)
1× 1½" (KSH–20)
– M6 nut (standard SW):
3× (KSH–202)
4× (KSH–203, KSH–204)
– M6 nut (non-st. SW)
1× (KSH–204)
2.1.2 Probe sockets
KSK– KSP– KSS–
201 201 201
Number of probes 1
Insulation of socket ABS PP
M4 nut,
Cable gland Pg7
protected by a rubber cap
Process conn. – ⅜" BSP
A44
Socket material – PP
c. steel
Housing material –
max. +80 °C
Medium
temperature
(+176 °F)
3 bar
Max. pressure –
(43.5 psi)
Ingress protection – IP20
50 g
Mass 100 g (0.22 lb)
(0.11 lb)
r = reference probe
2.2 ORDER CODES

KRK–512– NIVOCONT KS
Power supply Code
Type
24...240 V AC/DC 5
Cable probe

KLN–2
PP socket
Carbon steel socket
Code Probe length Code
Stainless steel socket
0 0 m 0 m 0
1 1 m (3.3 ft) 0.5 m (1.64 ft) 5
Stainless steel socket
2 2 m (6.6 ft)
3 3 m (10 ft)
M20x1.5
Probe Socket
KSH–20
M20x1.5
Separator
KLP–204
KSH–
KSN–
201
202 203 204 301 302
2+r 3+r 4+r 1+r 2+r
PFA
M20x1.5
cable diameter Ø6...12 mm (Ø0.25...0.5 inch)
1½" BSP
KO35
stainless steel (1.4571)
Powder-coated
cast aluminum
max. +200 °C (+391 °F) max. +80 °C (+176 °F)
16 bar (232 psi) 3 bar (43.5 psi)
IP65
400 g (0.88 lb)
  
– 0
Code Housing mat. Code
K Aluminum
SINGLE PROBE Plastic
P
S
N
Separator:
MULTIPLE PROBES
NIVOCONT KLP–201 – for plastic version
H
NIVOCONT KLP–204 – for aluminum version
⅜" BSP
Probe Socket
KSP–201 / KSS–201 / KSN–201
Probe Socket
KSH–30
NIVOCONT K
KRK–512
CONDUCTIVE LEVEL SWITCH
USER'S MANUAL
PDF 
Manufacturer:
NIVELCO Process Control Co.
H–1043 Budapest, Dugonics u. 11.
Tel.: +36-1-889-0100 Fax: +36-1-889-0200

E-mail: sales@nivelco.com www.nivelco.com

KLN– KLP– KLP–
2 201 204
303 304
3+r 4+r 1 –
PP –
– –
M6 –
KO35
PP –
1.4571
PBT – PP PVDF
max. max.
– +80 °C +130 °C
(+176 °F) (+266 °F)
–
IP67 –
220 g/m
–
(0.13 lb/ft)
Probe number Code
2 1 + reference probe* 1*
3 2 + reference probe 2
3 + reference probe 3
4 + reference probe 4
*only plastic version
Probe
KLN–2
Separator
KLP–201
krk512en1906h