Intended Use; Scope Of Delivery - Bühler technologies Nivotemp NT 61 Guía Rápida

Nivotemp NT 61, NT 61-HT, NT 63, NT 63-
LTD/Nivovent NV 71, NV 73
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 switches are used to monitor the fill level and temperat-
ure in fluid systems.
Level switches must not be used in highly flammable or cor-
rosive 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 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,
BX100019 ◦ 08/2020
• 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
Electric voltage
Risk of electric shock
a) De-energise the system.
b) The equipment may only be installed, maintained and
put into operation by instructed, competent personnel.
c) Always observe the applicable safety regulations for the
operating site.
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
Please note before installing the level switch!
After transport and delivery of the level switch, the switching
status of the bistable contacts may be different than required
for proper operation.
Therefore slide the float for the level switch along the level
switch tube from below immediately before installation.
This ensures all built-in bistable contacts have a clearly
defined switching status (NC or NO).
For direct installation to the tank, insert the switching tube
into the designated bore (per DIN 24557, Part 2) with rubber-
ised cork seal on the tank. It secures to the flange using the in-
cluded screws and seals. 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.
Bühler Technologies GmbH 5