Intended Use; Scope Of Delivery; Potentially Explosive Atmosphere - Bühler technologies NS 1-G1/2-AM Guía Rápida

NS 1-G1/2-AM
1 Introduction
This quick guide will assist you in starting up the unit. Follow
the safety notices or injury to health or property damage may
occur. Carefully read the original operating instructions in-
cluding information on maintenance and troubleshooting
prior to startup. These are located on the included CD and on-
line at
www.buehler-technologies.com
Please direct any questions to:
Bühler Technologies GmbH
Harkortstraße 29
40880 Ratingen
Germany
Tel.: +49 (0) 21 02 / 49 89-0
Fax: +49 (0) 21 02 / 49 89-20
These operating instructions are a part of the equipment. The
manufacturer reserves the right to change performance-, spe-
cification- or technical data without prior notice. Please keep
these instructions for future reference.

1.1 Intended Use

The NS1 level switch series serves liquid level monitoring in
tanks in fluid systems. They are installed on the tank and have
a visual display. Up to four switching contacts provide an elec-
tronic signal for fill level monitoring.
A medium temperature between -20 °C and 80 °C (-4 °F and
176 °C) must be maintained. The level switch must not be used
in highly flammable or corrosive liquids. The medium must
not contain particles, particularly metallic particles, to pre-
vent deposits on the float or between the float and switching
tube. If necessary, filter the medium.
Please refer to the technical data for the specific intended use
and available material combinations.
Please refer to the type plate for your equipment configura-
tion. In addition to the job number, this also contains the item
number and type designation.
WARNING
All device models are solely intended for industrial applica-
tions. They are not safety components. The devices must not
be used if failure or malfunction thereof jeopardises the
safety and health of persons.
Use in explosive areas is prohibited.
Any use outside the technical data and outside the areas of
application specified in these instructions is considered im-
proper use.
1.2 Functionality
The measuring tube is located inside the bypass tank with
sight glass. The level switches are located inside the measur-
ing tube. These are activated by a magnet inside the level
switch float.
The level contacts are reed switches. They are mounted to a
perforated rail spaced as specified in the purchase order, but
can be moved.
6 Bühler Technologies GmbH

1.3 Scope of Delivery

• Level switch
• Product documentation
• Connection/mounting accessories (optional)
2 Safety instructions
The equipment must be installed by a professional familiar
with the safety requirements and risks.
Be sure to observe the safety regulations and generally applic-
able rules of technology relevant for the installation site. Pre-
vent malfunctions and avoid personal injuries and property
damage.
The operator of the system must ensure:
• Safety notices and operating instructions are available
and observed,
• The respective national accident prevention regulations
are observed,
• The permissible data and operational conditions are
maintained,
• Safety guards are used and mandatory maintenance is
performed,
• Legal regulations are observed during disposal,
• compliance with national installation regulations.
DANGER
Toxic, corrosive gases or liquids
Gasses or liquids can be harmful to the health.
a) If necessary, ensure a safe gas/liquid discharge.
b) Always disconnect the gas supply when performing
maintenance or repairs.
c) Protect yourself from toxic/corrosive gasses/liquids when
performing maintenance. Wear suitable protective
equipment.
DANGER

Potentially explosive atmosphere

Explosion hazard if used in hazardous areas.
The device is not suitable for operation in hazardous areas
with potentially explosive atmospheres.
Do not expose the device to combustible or explosive gas mix-
tures.
3 Transport and storage
Only transport the product inside the original packaging or a
suitable alternative.
The equipment must be protected from moisture and heat
when not in use. It must be stored in a covered, dry, dust-free
room at room temperature.
BX200006 ◦ 01/2022