Kobold NAS User manual

Operating Instructions
for
Tilt Level Switch for solids
Model: NAS

NAS
page 2 NAS K01/0523
We don’t accept warranty and liability claims neither upon this publication nor in
case of improper treatment of the described products.
The document may contain technical inaccuracies and typographical errors. The
content will be revised on a regular basis. These changes will be implemented in
later versions. The described products can be improved and changed at any time
without prior notice.
© Copyright
All rights reserved.
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Operating Principle ........................................................................................ 4
6.Electrical Connection .................................................................................... 4
7.Operation / Configuration / Adjustments ....................................................... 5
8.Technical Information .................................................................................... 6
9.Order Codes ................................................................................................. 6
10.Dimensions ................................................................................................... 6
11.Disposal ........................................................................................................ 7
12.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

NAS
NAS K01/0523 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.
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com
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 machinery directive.
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:
 Tilt Level Switch model: NAS
4. Regulation Use
Any use of the device, which exceeds the manufacturer’s specification, may
invalidate its warranty. Therefore, any resulting damage is not the responsibility of
the manufacturer. The user assumes all risk for such usage.

NAS
page 4 NAS K01/0523
5. Operating Principle
The tilt level switch model NAS has been designed to provide high level
measurement in silos or any other type of storage containers located in non-
hazardous areas. The NAS can be used in all grain solid applications with
acceptable minimum density and grain size.
Its operation is very simple: Vertically suspended at the desired high level point,
the NAS will tilt as the grain reaches the unit.
6. Electrical Connection
Back up Fuse: max. 20 A
Power: 50…250 VAC/24…250 VCC
1 Blue
2 Brown
3 Isolated

NAS
NAS K01/0523 page 5
7. Operation / Configuration / Adjustments
Filling
IMPORTANT! The NAS level sensor must be installed opposite the arrival of the
product, and at a certain distance from the wall, in order to ensure an optimal
movement.
Manual filling of the silos may cause the sensor to malfunction.
NKF
When the silo fills up,
the level sensor is suspended vertically.
When the high level is reached,
the level sensor tilts and stops filling the silo.
Do not use a cable tie that could damage the cable and
damage the device. The NKF (cable clamp) is an accessory
that allows you to properly attach the electric cable to the
desired height without hurting the cable.

NAS
page 6 NAS K01/0523
8. Technical Information
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com
9. Order Codes
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com
10. Dimensions
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com

NAS
NAS K01/0523 page 7
11. Disposal
Note!
 Avoid environmental damage caused by media-contaminated parts
 Dispose of the device and packaging in an environmentally friendly manner
 Comply with applicable national and international disposal regulations and
environmental regulations.
Batteries
Batteries containing pollutants are marked with a sign consisting of a crossed-out
garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that
is decisive for the classification as containing pollutants:
Cd1 Hg2 Pb3 Li4
1. „Cd" stands for cadmium
2. „Hg" stands for mercury
3. „Pb" stands for lead
4. „Li" stands for lithium
Electrical and electronic equipment

NAS
page 8 NAS K01/0523
12. EU Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Tilt Level Switch Model: NAS
to which this declaration relates is in conformity with the standards noted below:
EN IEC 60730-2-15:2019 (Classification C47-745)
Automatic electrical controls - Part 2-15: Particular requirements for automatic
electrical air flow, water flow and water level sensing controls
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, 16 May 2023
H. Volz M. Wenzel
General Manager Proxy Holder