NIVELCO NIVOPRESS NT Series User Manual

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We are sure that you will be satisfied throughout its use.

APPLICATION

The NIVOPRESS NT-100 can be used for the level metering of masses and liquids.
The instrument measures the pressure difference between the liquid head above the
sensor and the atmospheric pressure. The electrical signal provided by the ceramic
pressure sensor is converted into a 4 to 20 mA output signal proportional to the level
changes. The use of the capacitance principle results in a stable measurement with
accuracy better than 0.2% (even with adjusted span!). The span adjustment and scaling
is done by simple pushbutton programming. A programmable damping helps to
overcome output fluctuation caused by surface turbulence and fast level fluctuation.

ORDER CODES

Type
Transmitter
Transmitter/indicator
Process connection
1 1/2" BSP
1 1/2" NPT
2" Triclamp (ISO2852)
DIN 40 Pipe coupling (DIN11851)
DIN 50 Pipe coupling (DIN11851)

TECHNICAL DATA

Type
Range
Zero Adjustment
Tum down
Overload capability (P )
max.
Damping Time
Output
Local LCD indicator
Accuracy (F.S.O.)
Temperature coeff.
Long term stability
Operating voltage (U )
t
Ex power supply
Maximum load resistance
Medium temperature
Ambient temperature
Process connection
Electric connection
wetted parts
Materials of
non wetted part
Mechanical protection
Weight

DIMENSIONS OF THE THREADED VERSION

141
23
2
Sw 55
1 -
NIVOPRESS N
Code Range Code
T T 0-0,1bar (max.4bar) 1
B B 0-0,2bar (max.6bar) 2
0-0,4bar (max.6bar)
3
Code 0-1bar (max.10bar)
4
0-2bar (max.18bar)
5
C
0-4bar (max.25bar)
N 6
R 0-10bar (max.40bar) 7
V
0-20bar (max.40bar)
8
W
NT/NB-100
In accordance with the order code
In accordance with the order code
0 ... 10 Sec
4 to 20 mA
Scale indication from -4090 to +4090
< 0.1%/10 K
<0.15%/year
12 to 30V DC
U : 30 VDC, I
max
U - 12V
t
R
0,02 A
t
-30°C...+100°C
-30°C...+70°C
In accordance with the order code
Screw terminals for 2,5 mm
Probe
Diaphragm seal
Diaphragm
Housing
Pg 16
Fig. 1
-
Seal
Code
FPM 1
2
EPDM
Power supply
Code
12-30 V DC 4
12-30 V DC/Ex * 8
* pending
+20 %
1 : 4
< 0.2 %
: 80 mA, P : 80 W
max max
≤ 600 Ω, U
(R :24V)
t t
2
via cable gland Pg16
Stainless steel Ssi 316Ti
EPDM or Viton
Ceramic (AL O )
2 3
Paint coated AL
IP 65
1.25 kg

INSTALLATION

USER'S MANUAL
Manufacturer:
Nivelco Process Control Co. Ltd.
H-1043 Budapest, Dugonics u. 11.
Phone: (36-1) 369-7575 Fax: (36-1) 369-8585
E-mail: sales@nivelco.hu http://www.nivelco.hu

ACCESSORIES

1 x User's manual
1 x Gasket
UNICONT
4-20 mA
NIVOPRESS
4-20 mA
Fig. 2
~ 230 V