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Home | Products | Level | Level Switches | Conductive | NIVOCONT K

NIVOCONT K – Conductive Level Switches

Level Switches, probes and Compact Level Switches.

  • Limit switch or differential switch versions
  • Adjustable sensitivity
  • Adjustable time delay
  • High or low fail-safe mode
  • All wetted parts stainless steel
  • Compact unit with two independent relays
  • Separate probe and relay unit
  • Rod probes up to 3 m
Brand: NIVELCO
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  • Product Details
  • Technical Specs
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https://www.intech.co.nz/wp-content/uploads/2019/11/nivocont_k.mp4

NIVOCONT K level switches, based on the conductivity principle, can be applied to liquids with conductivity higher than 10-5 S/cm.

For detecting the level, probes are immersed into the tank. These probes (and the tank wall if conductive) serve as contacts of an electric circuit.

Probes can be of single or multiple rod versions. A maximum of 4 probe rods can fit in the multiple probe socket with an additional reference probe if tank wall is not conductive.

The probe length should be in accordance with the level to be detected. When the liquid level reaches the probe, it will create a short-circuit and the output relay will be activated. The device senses the conductivity difference between the probes and the reference probe. The KLP separators should be used at every 0.5 m to provide suitable distance between the probes.

Main Features:

Level switches

KRK-512 

  • Level switching
  • Filling-emptying control
  • Selectable NO/NC relay function
  • Adjustable sensitivity
  • Adjustable delay ON and delay OFF time
  • Delay time indication
  • AC/DC versions

KRK-622

  • The following functions can
    be selected:
    – Monitoring of 2 independent levels in 2 tanks
    – Monitoring of 2 independent levels in 1 tanks
    – Pumping from one tank to another
  • DIP switch selection on the front panel (8 functions)
  • Adjustable probe sensitivity (for each probe separately)
  • Adjustable relay switching delay (for each probe separately)
  • AC/DC versions

Compact level switches

KKH-2_2

  • Probe and relay in one unit
  • 1 or 2 incorporated KRK-512 electronics
  • 1 or 2 independent relay outputs for pump control or differential level switching
  • Selectable NO/NC relay function
  • Adjustable sensitivity
  • Adjustable delay ON and delay OFF time
  • Delay time indication
  • AC/DC versions
 Probes    Single Probe      Multi Probe Submersible
   Aluminium housing   Plastic housing
 KSP-201  KSS-201  KSN-201  KSH-202  KSH-203  KSH-204  KSH-301  KSH-302 KSH-303 KSH-304 KSK-201
Number of probes    1  2+s*  3+s*  4+s*  1+s*  2+s* 3+s* 4+s* 1
Process connection 3/8″ BSP      1 1/2” BSP Cable mountable
Probe socket material  PP  carbon steel  1.4571    1.4571   PP –
Housing  –    Aluminium cast   PBT ABS
Probe material         1.4571 1.4401
Insulation of socket PP PFA PP –
Medium temperature max. +80 °C max. +200 °C max. +80 °C
Pressure max max. 0.3 MPa (3 bar) max. 1.6 MPa (16 bar) max. 0.3 MPa (3 bar) –
Electrical connection With rubber cap M20x1.5 cable gland, cable diameter: 6…12mm Pg9 (1)
Ingress protection IP20 IP65 IP67 IP68
Mass (without probe) 0.1 kg 0.4 kg 0.2 kg 0.05 kg

s* = reference probe (1) Cable: Ø4 – 7 mm

</tr

 Type KRK-512-5 KRK-522-□
 Power supply (Un) 24 – 240 V AC/DC 110 V AC, 230 V AC 24 V AC/DC
-15% … +10%
 Power consumption max. 2.5 VA / W max. 4.5 VA / W
 Ambient temperature -20 °C … +55 °C
 Probe voltage 3.5 V AC 5 V AC
 Probe current max. 0.2 mA AC max. 1 mA AC
 Sensitivity Adjustable: 5 kΩ – 100 kΩ
 Cable capacitance 100 nF (100 kΩ sens.) 800 nF (5 kΩ sens.) max. 4 nF
 Fixed on-delay (t1) 1.5 sec –
 On and off-delay 0.5 – 10 sec
 Relay output 1x SPDT 250 V 8A, AC1

24 V DC min. 500 mW

2x SPDT 250V 16A, AC1

24 V DC min. 500 mW

 Electrical connection Terminal block, max. 2.5 mm2 / with insulation 1.5 mm2
 Electrical protection Class II Class III
 Mechanical connection EN 60715 rail
 Ingress protection IP20
 Mass 72 g 240 g
 Type  KKH-212-5  KKH-222-5
 Power supply (Un)  24 V – 240 V AC/DC
 -15% … +10%
 Power consumption max. 2.5 VA / W max. 5 VA / W
 Ambient temperature -20 °C … +50 °C
 Medium temperature max. +80 °C
 Medium pressure 1 bar
 Number of probe 2+s* 4+s*
 Probe voltage 3.5 V AC
 Probe current max. 0.2 mA
 Sensitivity Adjustable: 5 kΩ – 100 kΩ
 Fixed on-delay 1.5 sec
 On and off-delay 0.5 – 10 sec
 Relay output 1x SPDT 250 V 8A AC1 / DC 24V 8A 2x SPDT 250V 8A, AC1 / DC 24V 8A
 Electrical connection Cable gland: 2x M20x1.5 Ø6 – 12 mm cables, Terminal block, max. 2.5 mm2 / with insulation 1.5 mm2
 Electrical protection Class II
 Process connection 1½” BSP
 Material of probe   socket PP
 Housing material Polycarbonate
 Ingress protection IP67
 Mass 660 g (without probe) 800 g (without probe)

s*=reference probe

  • Conductive Level Switches Nivelco NIVOCONT K - Brochure 1.60 MB
  • Conductive Level Switches Nivelco KKH-200 - Manual 588.38 KB
  • Conductive Level Switch Nivelco KRK-512 - Manual 291.77 KB
  • Conductive Level Switch Nivelco KRK-522 - Manual 282.16 KB
  • Conductive Level Switch Nivelco KRK-622 - Manual 1.79 MB

Product Range

Product Range:
CodeSpecificationsPriceQuantity
KRK-512

Conductive level switch, 1x SPDT relay, 24~240Vac/dc

$140.00
KRK-622-1

Conductive level switch, 2x SPDT relays, 230Vac

$175.00
KRK-622-4

Conductive level switch, 2x SPDT relays, 24Vac/dc

$190.00
KKH-212-5

Compact level switch, single channel (3 probes) (Includes 1 x KRK-512)

$300.00
KKH-222-5

Compact level switch, dual channel (5 probes) (Includes 2 x KRK-512).

$426.00
KSK-201

Submersible probe

$32.00
KSP-201

Single Probe socket, PP/PP

$52.00
KSN-201

Single Probe socket, Stainless Steel/PFA

$92.00
KSH-202

Multi-probe socket, Aluminium, 2 electrodes + reference electrode, 1.5”BSP

$310.00
KSH-203

Multi-probe socket, Aluminium, 3 electrodes + reference electrode, 1.5”BSP

$380.00
KSH-204

Multi-probe socket, Aluminium, 4 electrodes + reference electrode, 1.5”BSP

$454.00
KSH-302

Multi-probe socket, Plastic, 2 electrodes + reference electrode, 1.5”BSP

$208.00
KSH-303

Multi-probe socket, Plastic, 3 electrodes + reference electrode, 1.5”BSP

$266.00
KSH-304

Multi-probe socket, Plastic, 4 electrodes + reference electrode, 1.5”BSP

$334.00
KLP-204

Separator for KSH-200

$7.00
KLP-201

Separator for KSH-300 and KKH-200

$6.00
KLN-210

Electrode, M6 thread, 1.0m, for KS and KKH.

$30.00
All prices are in NZ$, and GST exclusive and are subject to change without notice.

Intech Instruments Ltd are the New Zealand distributor for Nivelco products. Please contact the Nivelco distributor in your country if you require sales or service support for Nivelco products.

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