Hengesbach NKS 11 Installation Instructions

Conductive level sensor
- Type NKS 11 -

DESCRIPTION

The conductive level sensors are mainly used to detect conductive threshold levels in liquids such as fruit juices, beer,
milk, etc. with a minimum conductivity of 5 µS.
The favourable design, with its sealing cone and the corresponding welding sockets, means that there are no places in
which residues can collect. The sensor is therefore easy to clean and suitable for use in the food and pharmaceutical
industry, etc. CIP- and SIP-suitability are guaranteed.
The non-corrosive materials used for the rod and insulation mean that the sensor is also suitable for corrosive media.
Various process connection forms render optimal adaptation to the application possible. The sensor can be shortened,
which has a positive and practical effect on storage. The electrode is coated with HALAR, which means that the
threshold level detection is also suitable for foaming media.

TECHNICAL DATA

Electrical connection cable gland M16x1.5
bipolar terminal (2.5 mm²)
optional:
M12x1 connection plug
Type of protection IP 67 acc. EN 60529
Process connection standard NKS 11:
G ½ B threaded connection,
1.4571 / metal seal,
torque: approx. 15 Nm
optional NKS 13:
G ¾ B with union nut and O-
ring for welding socket
G ¾, l= 1500 mm, d= 11 mm
Electrode length 200, 500, 800, 1500 mm, can
be shortened, other lengths on
request
Operating temperature max. 140 ºC
Environmental -10...+60 ºC
temperature
Operating pressure Pmax = 6 bar
Insulation PEEK (FDA-approved)
Sensor rod stainless steel 1.4571, ø 4 mm
Coating ECTFE (HALAR), ø 0.7 mm,
FDA approved
Hengesbach GmbH & Co. KG · Schimmelbuschstr. 17 · D-40699 Erkrath · Tel. +49 (0) 21 04 / 30 32-0 · Fax +49 (0) 21 04 / 30 32-22 · www.hengesbach.biz
CONDUCTIVE THRESHOLD LEVEL DETECTION
OF LIQUID MEDIA
VERSION SUITABLE FOR HIGH-HYGIENE
ENVIRONMENTS EHEDG / FDA
STAINLESS STEEL HOUSING IP67
MAINTENANCE-FREE
OPTION: WITH NM LEVEL MODULE

ACCESSORIES

- Please quote separately when ordering -
- welding socket with sealing cone (zem / TP 16),
Item No. 06002001
- spherical welding socket with sealing cone
(zem / TP 35), Item No. 06002298
- screw connection can also be combined with other
installation systems
INSTALLATION INSTRUCTIONS
- the maximum permissible torque (15 Nm) must be
taken into account when fitting the sensor
- the tank or pipe wall must be made of metal
- when installing the sensor, only use the
key surface, not the connection head
- the process connection thread of the sensor must
have free electrical contact to the wall of the pipe/tank
(do not use any insulating sealing materials !)
N-NKS-11-D-e-08-1/1