BKI 16 ATEX 0013X
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mka2100a0600h_10
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Thank you for choosing a NIVELCO instrument.
We are sure that you will be satisfied throughout its use.
1. APPLICATION
The NIVOMAG MK-200 series magnetic float level switches are used for level point detection of liquids in all type of
vessels.
Operation without external power, side or top mounting, wide temperature ranges, various process connections, stainless
steel wetted parts and Ex versions make it applicable in the industrial chemistry, pharmacy, petrol industry etc. Permanent
magnet operated by the movement of a float will activate an other magnet inside the switching enclosure. This second
magnet operates a special switch. So the movement of float is transferred to the potted switch through separated magnetic
coupling ensuring the requirements of the wet process and Ex application. Special balancing construction and various
accessories (see figures of DIMENSIONS) give wide range of possibility of the installation.
2. TECHNICAL DATA
2.1 G
ENERAL SPECIFICATION
T
YPE
H
ORIZONTAL
F
LOAT
V
ERTICAL
F
LOAT
MK
-21
-
MK
-22
-
MKG-2
-
MKS-2
-
MK
-23
-
Nominal Pressure max.
2.5 MPa (
MKU
: 0.2 MPa / 2.5 MPa)
1.6 MPa
Liquid temperature
see temperature diagram
0
°
C to 100
°
C 0
°
C to 200
°
C
s. temp.diagr.
Ambient temperature
-20 °C … +80 °C, Ex version see table below
Liquid density
min 0.7 kg/dm
3
… 0.85 kg/dm
3
see table
Switch differential
Fixed
Adjustable
Fixed
Fixed
Adjustable
Protrusion length
See figures below
Material of vetted parts
SS316Ti (MKG: rubber MKS silicon rubber)
Housing material
Paint coated aluminium
Switch action
1 micro-switch with 1 closing and 1 opening contact (NO and NC)
Switch rating
250 V AC12 10 A; 220 V DC13 0.6 A – Ex:250V AC12 2.5A; 220V DC13 0.3 A
Electrical connection
1 x Pg 16 or M20 x 1.5 for cable diameter 6 to 15 mm*
with 5 x 2.5 mm
2
wire cross section (
MKU
: integrated cable)
Mechanical protection
IP 65 (
MKU
: IP 68 max 20 m water depth)
Electrical protection
Class I.
Ex protection mark
II 1/2 G Ex d e mb IIC T6 … T2 Ga/Gb
Weight (approx)
2.5 kg
* depending on type of cable gland
2.2 S
PECIAL DATA
T
EMPERATURE
Medium [°C]
Ambient
[°C]
20 -12
-20
-50
T2
T3
T4
T5
T6
70 80
60
250
200
130
100
80
MKU
C
LASS
T6
T5
T4
T3
T2
Liquid
temperature
+80 °C
+95 °C
+130 °C
+200 °C
+250 °C
Ambient
temperature
-20
°
C …
+60
°
C
-20
°
C …
+70
°
C
-20
°
C …
+80
°
C
-20
°
C …
+80
°
C
-20
°
C …
+80
°
C
A
RM
.
L
.
(mm)
M
INIMAL DENSITY OF LIQUID
(kg/dm
3
)
F
LOAT
(mm)
0 … 100
200
300 1000 … 3000
52 0.7
0.8
0.85 –
64 0.7
0.8
0.8 –
120 – –
– 0.7
2.3. A
CCESSORIES
−
User’s Manual, Warranty Card, Declaration of conformity
2.4
O
RDER
C
ODE
NIVOMAG M K
– 2 / 3
–
Ex
V
ERSION
C
ODE
F
UNCTION
C
ODE
P
ROCESS CONNECTION
C
ODE
A
RM
.
LENGTH
C
ODE
Normal
A
Constant
hysteresis
1
92 x 92 flange
0
Normal
0 mm
0
rubber cup
G
Adjustable
hysteresis
2
DN 80 PN 25 C steel
1
100
mm
1
silicon rubber cup
S
Adjustable hysteresis vertical float
3
DN 100 PN 25 C steel
2
200
mm
2
Under water
U
DN 125 PN 25 C steel
3
300
mm
3
Under water + rubber cup
V
DN 150 PN 25 C steel
4
Z or L arm
4
Under water + silicon rub. cup
Z
DN 80 PN 25 SS 316 Ti
5
Ex version
0 mm
9
DN 100 PN 25 SS 316 Ti
6
100
mm
5
DN 125 PN 25 SS 316 Ti
7
200
mm
6
DN 150 PN 25 SS 316 Ti
8
300
mm
7
2” BSP
B
Z or L arm
8
2” NPT
N
MK-23
A
RM
.
LENGTH
C
ODE
Norm
1000 mm
1
2000
mm
2
3000
mm
3
Ex vers.
1000 mm
5
2000
mm
6
3000
mm
7
NIVOMAG
Manufacturer:
H-1043 Budapest, Dugonics u. 11.
Phone: (36-1) 889-0100 Fax: (36-1) 889-0200
E-mail: [email protected] www.nivelco.com
NIVELCO Process Control Co.
COUNTER FLANGE
NIVOMAG M F F – 1
– 0
M
ATERIAL
C
ODE
C steel
1
SS 316 Ti
2
P
ROC
.
CONNECT
.
C
ODE
92 x 92 PN 25
0
92 x 92 PN 25 for tester
1
92 x 92 PN 25 Counter fl. spec.
2
92 x 92 PN 25 Counter flange spec.for tester
3
TESTER
NIVOMAG M M K – 1 0 – 0
M
ATERIAL
C
ODE
C steel
1
SS 316 Ti
2
