Nivotemp NT 61, NT 61-HT, NT 63, NT 63-
LTD/Nivovent NV 71, NV 73
1.3 Design types
The level switch is equipped with different switching and analogue outputs based on the configuration. The outputs are freely
programmable.
The Nivovent type can be equipped with the following options:
VS
Optical contamination indicator for the vent filter: analogue negative pressure display, display range 0.35 bar (5.1 PSI).
BFA*
Filling adapter incl. ribbed flange with screen insert: This option enables adding small amounts of oil through the vent
filter housing. The selected version is built into the respective housing for this purpose.
SSR*
Stilling tube with centring disc and filling adapter: Just as with the BFA, this contains both the stilling tube option as
well as the filler. The stilling tube is made from the same material as the selected immersion tube (MS/VA).
MT
for installation into the multiterminal: Here the basic version is built into the multiterminal (MT).
MTS
for installation into the multiterminal including stilling tube: In addition to the basic version, a stilling tube with cent-
ring disc is built into the multiterminal.
FCT
Fluidcontrolterminal: Here the fluid control terminal (FCT) is mounted directly onto the basic version.
* not in conjunction with FCT and MT/MTS option
The SSR option is available for the Nivotemp type.
Please refer to the type plate for your equipment configuration. In addition to the job number, this also contains the item num-
ber and type designation.
1.4 Model key NT61
Model designation
Version
MS
VA
Brass
float and immersion tube
Plug connector
M3
S6
M12
2M12
C6F
Length in mm (max. 1500)
280
370
500
nn
Standard lengths
variable, please specify value
Level measurement
1-4
Number of contacts
K
W
Model K10 (NC/NO)
Model W11 (change-over contact)
1st temperature signal
TK...
NC contact NO contact
TK50NC
TK60NC
TK70NC
TK80NC
TK50NO
TK60NO
TK70NO
TK80NO
= 50 °C
= 60 °C
= 70 °C
= 80 °C
TM...
TM50NC
TM60NC
TM70NC
TM80NC
TM50NC
TM60NC
TM70NC
TM80NC
TM50NO
TM60NO
TM70NO
TM80NO
= 50 °C
= 60 °C
= 70 °C
= 80 °C
Pt100
KT
Temperature sensor
Temperature transmitter
TM...
TM50NO
TM60NO
TM70NO
TM80NO
= 50 °C
= 60 °C
= 70 °C
= 80 °C
2nd temperature contacts (TM... only)
NO contactNC contact
Stilling tube
SSR
Cannot be combined with temperature contact
1)
NT 61
Level contact
Options
1)
1) 2)
2)
With KT only 10 - 30 V DC
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-nn
-nn
3)
For version with 2 temperature contacts
3)
3Bühler Technologies GmbHBE100019 ◦ 08/2020