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Nivotemp NT M-L
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
Level sensors are used to monitor the liquid level and temper-
ature in fluid systems.
Level sensors must not be used in highly flammable or corros-
ive liquids.
The medium must not contain particles, particularly metallic
particles, to prevent deposits on the float or between the float
and switching tube. If necessary, filter the medium.
Please note the technical data for the specific intended use,
existing material combinations, as well as temperature limits.
Please refer to the original operating instructions on the in-
cluded CD for details.
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.
1.2 Scope of Delivery
• Level sensor
• 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.
4
Bühler Technologies GmbH
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, acidic gases/liquids
Protect yourself from toxic, corrosive gasses/liquids when
performing any type of work. Wear appropriate protective
equipment.
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.
4 Setup and connection
DANGER
Toxic, acidic gases/liquids
Protect yourself from toxic, corrosive gasses/liquids when
performing any type of work. Wear appropriate protective
equipment.
4.1 Installation
The level switch comes fully assembled and can be mounted
to the tank using the screw-in thread. Please be sure the float
can move freely and to leave enough space between the tank
wall and add-ons.
After removing the float, where applicable, be sure the mag-
net inside the float is above the fluid level. This can easily be
verified with a piece of iron to determine the magnet position
inside the float.
4.2 Electrical connections
Electricity is supplied via plug connectors. Please refer to the
appendix for installation dimensions, nominal voltage and
plug configuration.
The switching outputs are PNP transistors.
The level- and temperature sensor is powered with 18 - 30 V
direct voltage. The sensor connects with a cable and standard
M12 plug-in connectors.
BX100029 ◦ 08/2020
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