NIVELCO MR Series User Manual

Thank you for choosing a NIVELCO instrument.
We are sure that you will be satisfied throughout its use.
1. APPLICATION
The interaction of the magnetic float and the reed relays (incorporated in the protection tube) is the basis of the
NIVOPOINT magnetic float level switch series operation. They are suitable for level indication of normal and explosive
liquids, and can be used for level control tasks. The protecting tube contains a max. of 5 relays. Parts of the instrument are:
probe tube with magnetic float and housing containing the connection terminal.
The magnetic float moves alongside the protection tube tracking the level of the liquid and activating the reed relays.
As the float passes a relay it changes the output state of the relay which retains this state latching until the level decreases
and the float moves again along the respective relay to switch its state back.
2. TECHNICAL DATA
2.1 G
ENERAL DATA
TYPE MR
Insertion length
Stainless steel
Material of wetted parts
(DIN 1.4571 / BS 316Ti)
2.5 MPa (25 bar) at +20 °C
Max. process pressure
Medium density min.0.8g/cm
∅52x59mm**
Nominal float dimensions*
-40 °C ... +150 °C
Medium temp. range
-40 °C ... +100 °C
Ambient temp. range
Output
Switching rate
Switch differential
Distance of switches
Electrical connection
1" BSP, 2" BSP
Process connection
1" NPT, 2" NPT
Sealing material Klingerit 400
Electrical protection
Ingress protection
Certificate for Ex versions
Dimension of the hous.
Mass
* dimensions of the float depend on the order
** for the exact size of the float see dimensions
2.2 A E
DDITIONAL DATA FOR X APPROVED MODELS
C
LASS
Max. ambient temperature
Max. medium temperature
2.4 O C
RDER ODE
T
YPE
Standard
Standard / plastic
coating and float
Notes:
*** The order code of an Ex version should end in 'Ex'
– MP –
0.25 m ... 3 m
PVDF float / PFA coated
guiding tube
0.3 MPa (3 bar) at +20 °C
3 3
min.0.5g/cm min.0.6g/cm
∅ 96 mm** ∅ 76 x 87 mm
-40 °C ... +80 °C
-40 °C ... +100 °C
1 ... 5 pcs reed-switches, connecting one side of each, NO/NC
120 W / VA, 250 V AC/DC, 3 A /reed relay, max. 9 A
< 10 mm
min. 110 mm
M20x1.5 for cables ∅6 to ∅12 mm
terminal, wire cross section: 0.5 to 2.5 mm
PP flange
DN 80, DN 100
—
Class I, Protecting cable 4 mm
IP 65
—
116 x 80 x 65 mm
0.4 kg + 0.3 kg/fm
T
EMPERATURE CLASS
T6 T5
80 °C 95°C
85°C 100°C
NIVOPOINT
C C
ODE ONNECTION
R
1" BSP
2" BSP
P
1" NPT
2" NPT
DN 80 PN 16 PP
DN 100 PN 16 PP
**** Depends on the order
MR – Ex
Stainless steel
(DIN 1.4571 / BS 316Ti)
2.5 MPa (25 bar) at +20 °C
3 3
min.0.8g/cm
∅ 52 x 59 mm
See table of temperature
classes
M20x1.5 for cables ∅9.5 to
∅ 10 mm
2
1" BSP, 2" BSP
1" NPT, 2" NPT
Klingerit 400
2
II 2 G EEx d IIC T3 ...T6
124 x 80 x 65 mm
0.45 kg + 0.3 kg/fm
T4 T3
85°C 70°C
135°C 150°C
M –
C S C L
ODE WITCH POINT ODE ENGTH
A 1
1 pc. NO/NC 0 m
C 2
2 pcs. NO/NC 1 m
D 3
3 pcs. NO/NC 2 m
G 4
4 pcs. NO/NC 3 m
P 5
5 pcs. NO/NC
R
∅ MP version:
52/1.4571
USER'S MANUAL
2.3 A
CCESSORIES
− User's Manual
− Certificate of Warranty
− Declaration of Conformity
− 1 pc Gasket (for threaded versions)
– ***
C L C
ODE ENGTH ODE
0
0 m
1
0,1 m
2
:
3
0,8 m
0,9 m
∅ ∅
76/PVDF, 96/1.4571
BKI 02 ATEX 091X ♦ mra1053a0600h_06♦ 2/1
N I V O P O I N T
1 4 1 8
F / E C
LOAT X ODE
0 3
**** / normal
1
∅ 52 1.4571
7
:
/ Ex
8
9