Buhler Nivotemp NT64, Инструкция по установке и эксплуатации

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Bedienungs- und Installationsanleitung
Installation- and Operation Instruction
Nivotemp NT64 / Nivovent NV74
14
BX100020 05/2014 Art. Nr. 9032037
NV 74-HY-
Level contact
K
=
W =
opener / closer
change over
Quantity of level contacts
1-4
Connector
M3
S6
M12
2M12
Design
MS
VA*
brass
float and immersion tube VA
Series
NV 74-HY Nivotemp
Temperatur
Pt 100 = (RTD)
= T
= Temperature contact
T50NO = 50°C closer
T60NO = 60°C closer
T70NO = 70°C closer
T80NO = 80°C closer
T50NC = 50°C opener
T60NC = 60°C opener
T70NC = 70°C opener
T80NC = 80°C opener
KT
TK
Temperature sensor
emperature transmitter
Optionen
BFA**
SSR**
MT
MTS
FCT
= filling adapter
= stilling tube with filling
adapter
= for Multiterminal
= for Multiterminal incl.
stilling tube
= Fluidcontrolterminal
Accessories
VS
= clogging indicator
Length (mm)
280
370
500
* not available in combination with option FCT
** not available in combination with the option
, FCT MT and MTS
1.1 Functional Description
1.1.1 Level Control
Using adjustable level contacts allows the application of standardised immersion tubes in oil tanks of
different sizes and geometrical shapes. The switching points are changeable to the requirement of the
individual application at any time. The level contacts are placed in closed housings. They are positioned on
a gold plated printed circuit board in defined positions on a 10 mm grid. The minimum distance between
two contacts is 40 mm.
The contacts are designed of closed and colour coded housings. They are positioned on a printed circuit
board with gold plated contacts. The colours are used for the coding of the different contacts and assure
the allocation of the connector’s assignments.
The colour coded housings allows easy assignment to the respective connector pins. The contacts’
function (falling opener fO or falling closer fC) is determined by 180° rotation on the printed circuit board.
1.2 Temperature Control (Option)
An adjusted temperature switch (bi-metal, NO or NC), a Pt 100 (RTD) or a 4-20 mA transmitter is fixed at
the lower end of the printed circuit board
1.3 Intended Use
!
WARNING
All types of devices are designed for industrial applications only. They are not designed as
safety devices. They
must not be used if in case of failure or malfunction safety or health of
persons is affected.
The device is not suitable for use in hazardous areas with potentially explosive
atmosphere.