Kobold NSED User manual

Operating Instructions
for
Floating Switch
Model: NSED / NSEK

NSED / NSEK
page 2 NSEK K05/0422
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Mechanical Connection ................................................................................. 4
6.Electrical Connection .................................................................................... 5
6.1General ................................................................................................ 5
6.2Connection Examples .......................................................................... 5
7.Technical Information .................................................................................... 6
8.Order Codes ................................................................................................. 6
9.Dimensions ................................................................................................... 7
10.EU Declaration of Conformance ................................................................... 8
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

NSED / NSEK
NSEK K05/0422 page 3
2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Floating Switch model: NSED / NSEK
4. Regulation Use
Any use of the Floating switch, model: NSEK, which exceeds the manufacturer’s
specifications, may invalidate its warranty. Therefore, any resulting damage is not
the responsibility of the manufacturer. The user assumes all risk for such usage.

NSED / NSEK
page 4 NSEK K05/0422
5. Mechanical Connection
Before installation:
 Remove all transport packaging and ascertain that no packaging material is
left in the instrument
 Please make sure that the allowable maximum operating pressure and
operating temperature of the instruments will not be exceeded (see standard
material combinations).
We recommend as a precaution for higher power loads, our contact protection
relay MSR.
Mounting
 from inside: with R ½” connection
 from outside: with flange

NSED / NSEK
NSEK K05/0422 page 5
6. Electrical Connection
6.1 General
Warning! Make sure that the maximum voltage / power values of
level switch will not be exceeded.
When raising: black/ blue: closing
black/ brown opening
6.2 Connection Examples

NSED / NSEK
page 6 NSEK K05/0422
7. Technical Information
Application: for very aggressive, pasty or hot liquids
Installation: from inside with G ½ connection
or from outside with flange
Material: Float: stainless steel 1.4571
Armour: stainless steel 1.4404
Wire mesh: stainless steel 1.4301
Screwed fitting: stainless steel 1.4571
Cable: 2 m silicone cable, 270 mm of which
with st. steel armour, 1.4541
Max. pressure: NSE-D: 6 bar
NSE-K: 15 bar
Max. temperature: 150 °C
Specific weight: > 0.8 kg/dm³
Contact: Reed contact change-over
connectable as N/O or N/C
Switch capacity: 4…250 VAC/DC
1 mA…1A, 60 VA
Switch. Hysteresis: approx. 10 mm
Switch angle: +20°/-20°
Safety class: IP 68
8. Order Codes
Order codes (Example: NSE-DW 02 SIL)
Model Description
NSE-DW 02 SIL C
y
lindrical float, 2 m silicone cable
NSE-KW 02 SIL Ball float, 2 m silicone cable

NSED / NSEK
NSEK K05/0422 page 7
9. Dimensions

NSED / NSEK
page 8 NSEK K05/0422
10. EU Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Floating Switch Model: NSED / NSEK
to which this declaration relates is in conformity with the standards noted below:
EN 61010-1:2010 Safety requirements for electrical equipment for
measurement, control and laboratory use - Part 1: General requirements
EN 61326-1:2013 Electrical equipment for measurement, control and
laboratory use - EMC requirements - Part 1: General requirements
Also, the following EC guidelines are fulfilled:
2014/30/EU EMC Directive
2014/35/EU Low Voltage Directive
2011/65/EU RoHS (category 9)
2015/863/EU Delegated Directive (RoHS III)
Hofheim, 11 Sept. 2019
H. Peters M. Wenzel
General Manager Proxy Holder