Thank you for choosing a NIVELCO instrument
We are sure that you will be satisfied with it throughout its use
1. APPLICATION
NIVOTRACK MT
-2
series float type magnetosrictive level transmitter is a two-wire precision measuring
instrument for clean liquids both in normal and hazardous location. These instruments re quire minimum
maintenance since the float is the only moving part.
2. TECHNICAL DATA
Insertion length L
0.5 m … 3.7 m according to the Order Codes
Range
maximum: up to the bumping point of the float
minimum: 0,6 x Insertion length
Zero offset
maximum: 0,4 x Insertion length
Process pressure (maximum)
2,5 MPa (25 bar) for steel floats ; 0,3 MPa (3 bar) (20°C) for plastic floats
Medium density
min. 0.7 g/cm
3
with float
52 mm ; min. 0.5 g/cm
3
95 mm
Medium temperature
- 40
°C…+130
°C
*
PP: - 20
°C…+80
°C
*
PVDF: - 20
°C…+130
°C
*
Ex : - 40
°C… +70
°C
Ambient temperature
- 40
°C … +70
°C
*
Float size / material
52x59 mm / 1.4571
95 mm / 1.4571
76x87 mm / PP or PVDF
Material of wetted parts
Stainless steel : 1.4571(DIN) PP or PVDF float: see Order Codes
Output
Normal operation 4 mA bottom… 20 mA top
Reverse operation 20 mA bottom… 4 mA top (on special request)
Accuracy
±0.04% or
1 mm
Linearity
0.035% or
0.8 mm
Repeatability
0,01% or
0,4 mm
Maximum load resistance
R
t
= ( U
t
-10.5 V) / 0.02 A U
t
= power supply voltage
Maximum output / Fault indication
value
24mA
Damping
1 sec, 5 sec adjustable
Supply voltage
10.5 … 36 V DC
Ex protection
Ex power supply
EEx ia IIB T5
U
max
= 28.4 V DC I
max
= 99 mA P
max
=
0.67 Watt
Electric protection
III. Protection Class
Ingress Protection
IP 67
Process connection
According to the order codes
Electric connection
2 x Pg 16 and 2 x
1
/
2"
NPT
thread, shielded cable: 0,75 ... 1.5 mm
2
Enclosure
Powder paint coated aluminium
Mass
2.2 kg + guiding tube 0.35 kg/m
*
See derating diagram under 3.!
USER’S MANUAL
Manufacturer:
Nivelco Process Control Co.
H - 1043 Budapest, Dugonics u. 11.
Telephone: (36-1) 369-7575 Fax: (36-1) 369-8585
E-mail: [email protected] http://www.nivelco.com
2.1
ACCESSORIES
User’s Manual
Warranty sheet
2 x Pg 16 cable gland,
Sealing ring for connection
with BSP thread only (klingerit
oilit)
2.3 DIMENSIONS
2.2 O
RDER CODES
NIVOTRACK
M
- 2
-
Model
Code
Process connection
Code
Insertion
lenrth
Code
Insertion
lenrth
Code
Version / Ex
Code
Transmit
T
1” BSP 1.4571(DIN)
A
0 m
0
0 m
0
Steel ball float
95 mm
1
1
1
/
2
”
BSP1.4571
B
1 m
1
0.1 m
1
Steel cylindrical float
52 mm
2
2” BSP 1.4571
C
2 m
2
0.2 m
2
Steel ball float
95 mm Ex
5
1” NPT 1.4571
D
3 m
3
0.3 m
3
Steel cylindrical float
52 mm Ex
6
1
1
/
2
”
NPT1.4571
E
0.4 m
4
PP cylindrical float
76mm , flange PP
A
2” NPT 1.4571
G
0.5 m
5
PVDF cylindrical float
76mm, flange PP
B
1” BSP sliding sleev
H
0.6 m
6
PVDF cylindrical float
76mm, fl. A38+PVDF
C
1
1
/
2
”
BSP sleeve
J
0.7 m
7
PP cylindrical float
76mm , flange PP Ex
E
2” BSP sleeve
K
0.8 m
8
PVDF cylindrical float
76mm, flange PP Ex
F
1” NPT sleeve
L
0.9 m
9
PVDF Cylindr float
76mm, fl. A38+PVDF Ex
G
1
1
/
2
”
NPT sleeve
M
2” NPT sleeve
N
DN 80
P
DN 100
R
Note: 1. Reverse operation on request (20 ... 4 mA)
DN 125
S
2. Not all code variations can be selected
89
2xPg16
2x1/2"NPT
~
15
6
B
en
yú
lá
si
h
os
sz
0,
5
-
3
,7
m
~
33
7
UP
89
~
33
5
~
15
6
2xPg16
UP
According to the order code
**
**
**
**
**
2x1/2"NPT
4 mA
20 mA
4 mA
20 mA
in
a
ct
iv
e
m
a
x.
m
e
as
.
tr
a
ck
r
an
ge
in
a
ct
iv
e
m
a
x.
m
e
as
.
tr
a
ck
r
an
ge
in
se
rt
io
n
le
ng
th
0
.5
-
3
.7
m
in
se
rt
io
n
le
ng
th
0
.5
-
3
.7
m
3. INSTALLATION
The NIVOTRACK MT
-2 should be
located in an area, which allows easy
access for service, calibration and
monitoring. Accuracy of the
measurement will be affected by
waves on the surface or excessive
vibration. Therefore the instrument
should be located away from the inlet
and outlet as far as possible. The
process fluid should be free of any
70
45
130
70
°C
°C
Medium temperature
A
m
b
ie
n
t
te
m
p
e
ra
tu
re
suspended solids or material that could stick between the float and the guide rod. If used at
temperatures in exess of 70 °C the maximum ambient temperature allowed will be in
accordance with the derating diagram.
