NIVELCO NIVOMAG MK-21 Series User manual

BKI 16 ATEX 0013X ♦mka2100a0600h_10 ♦1/2
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 GENERAL SPECIFICATION
TYPE HORIZONTAL FLOAT VERTICAL
FLOAT
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/dm3 … 0.85 kg/dm3see 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 mm2wire 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 SPECIAL DATA
TEMPERATURE
Medium [°C]
A
mbient
[°C]
20 -12 -20
-50
T2
T3
T4
T5 T6
70 8060
250
200
130 100
80
MKU
CLASS 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
ARM.L.
(mm)
MINIMAL DENSITY OF LIQUID
(kg/dm3)
FLOAT
(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. ACCESSORIES
−User’s Manual, Warranty Card, Declaration of conformity
2.4 ORDER CODE
NIVOMAG M K
–
2 / 3
–
Ex
VERSION CODE FUNCTION CODE PROCESS CONNECTION CODE ARM.LENGTH CODE
Normal A Constant hysteresis 1 92 x 92 flange 0
Normal
0 mm 0
Normal + rubber cup G Adjustable hysteresis 2 DN 80 PN 25 C steel 1 100 mm 1
Normal + 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
ARM.LENGTH CODE
Norm
1000 mm 1
2000 mm
2
3000 mm
3
Ex
vers.
1000 mm 5
2000 mm
6
3000 mm
7
NIVOMAG
Manufacturer:
H-1043Budapest, Dugonics u. 11.
Phone: [phone] Fax: [phone]
E-mail: [e-mail] www.nivelco.com
NIVELCO Process Control Co.
COUNTER FLANGE
NIVOMAG M F F – 1
– 0
MATERIAL CODE
C steel 1
SS 316 Ti 2
PROC.CONNECT. CODE
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
MATERIAL CODE
C steel 1
SS 316 Ti 2

BKI 16 ATEX 0013X ♦mka2100a0600h_10 ♦2/2
2.5 DIMENSIONS
123
11 8 -2 8 6
TOP
97
L
K
62.0
L=202-521 dependant on length
∅
65
∅
64.5
∅
77
MKA-210-0
Fixed switch differential according to the arm length
∅
65
∅
77
∅
64.5
97
TOP
116
62.0
202
118
MKG 210-, MKS 210-
Fixed switch differential , with protection sleeve
only non Ex versions
∅
52
116
20
position mark
114
S = 70
BSP 2” NPT 2”
178 NPT
189 BS
P
115
MKA-21B
Fixed switch differential, with 2″process connection
MKU-210
Fixed switch differential, for underwater application
MKA-230
Adjustable switch differential,
vertical mounting
∅
64.5
TOP
B
62.0
C
A
„A, B” switchpoint dependant
„A” min: 50
„B” min: 50
„A+B” max = 1000 mm
„A/B” 4
≤
MKA-210-4
Adjustable switch differential,
vertical mounting
MFF-111, 121 Counter flange
for MMK tester
MFF-110, 120
Square counter flange
11 6
ZZ
62.0
L
K
Y
1
Y
1
X
1
1
2
X
2
64.5
L
TOP
97
MKA-220_ Adjustable switch differential, vertical mounting Rectangular connection flange MMK-110, 120 Tester
3. INSTALLATION
Installation according to the requested application
may carry out on the basis of drawings and tables.
The balance of the arms with differential length is
provided by the counter weight shifted to the proper
point at the vertical type MKA-23_. Hysteresis
switching points will be adjusted on the vertical stick
with fixing rings. Function of the switch may be tested
without dismantle of the instrument by the installed
MMK tester. Minimal length of the arm is not shorter
than 100 mm in that case.
4. ELECTRICAL CONNECTION
káb eltípus: NSSHöu -J 5x1 ,5mm
2
NC
NO
Underwater version
Ex uni ts
Normal units
blue
black black
brown
gr. -yell ow
5. SPECIAL CONDITIONS FOR SAFE USE
•Ambient and medium temperature see 2.2.
•For installation of version NIVOMAG
MKU-2-Ex (with integrated
cable) a suitable junction box shall be used.
•The NIVOMAG MK float switch has be
connected to local EP circuit.
•The NIVOMAG MK float switch has to be protected against
overload with a ”T” marked 2.5 A circuit breaker
•For Tamb > 60 °C a suitable cable shall be used.
6. MAINTANCE, REPAIR
The NIVOMAG MK-200 series devices do not require
maintenance on a regular basis. In some instances, however, the
device may need a cleaning from deposited material. Repairs
during or after the guarantee period are effected at the
Manufacturer’s premises.
7. STORAGE CONDITIONS
Environmental temperature range: 25°C to +80°C Relative
humidity: max. 98 %
8. WARRANTY
NIVELCO provides warranty of 3 (three) years in compliance
with details described in the Warranty Card.
mka2100a0600h_10
April, 2016
Technical specification may be changed without notice.
MKA-220--0
-9 Ex MKA-220--1 -5 Ex MKA-220--2 -6 Ex MKA-220--3 -7 Ex
Lk = 0 Lk =100 Lk =200 Lk =300
L=268 L=350 L=450 L=550
Pos. X1X
2
Diff
S
Y1
(Z1)
Y2
(Z2) X1X
2
Diff
S
Y1
(Z2)
Y2
(Z2) X1X
2
Diff
S
Y1
(Z3)
Y2
(Z2) X1X
2
Diff
S
Y1
(Z4)
Y2
(Z2)
1-4 +87 +20 67 131 (13) +129 +30 99 194 (19) +171 [phone] (25) 213 [phone] (51)
1-5 +87 [phone] +129 [phone] +171 [phone] [phone]
1-6 [phone] [phone] [phone] 213 -50 263 319 72
1-7 [phone] [phone] [phone] 213 -102 315 319 151
1-8 [phone] [phone] [phone] 213 -158 371 319 233
1-9 [phone] [phone] [phone] 213 -218 431 319 319
2-5 +80 [phone] +118 [phone] +156 [phone] [phone]
2-6 [phone] [phone] [phone] 194 -50 244 299 72
2-7 [phone] [phone] [phone] 194 -102 296 299 151
2-8 [phone] [phone] +156 [phone] -158 352 299 233
2-9 [phone] [phone] [phone] 194 -218 402 299 319
3-5 +47 [phone] +70 [phone] +93 [phone] +116 [phone]
3-6 [phone] [phone] [phone] [phone]
3-7 [phone] [phone] [phone] [phone]
3-8 [phone] [phone] [phone] [phone]
3-9 [phone] [phone] [phone] [phone]
4-6 [phone] [phone] [phone] [phone]
4-7 [phone] [phone] [phone] [phone]
4-8 [phone] [phone] [phone] [phone]
4-9 [phone] [phone] [phone] [phone]
5-7 -12 -42 30 44 84 -18 -62 44 65 92 -24 -82 106 86 121 -30 -102 72 107 151
5-8 -12 -65 53 44 123 -18 -96 78 65 142 -24 -127 151 86 187 -30 -158 128 107 233
5-9 -12 -89 72 44 131 -18 -132 115 65 194 -24 -175 189 86 256 -30 -218 188 107 319
6-9 -20 -89 69 13 131 -30 -132 102 13 194 -40 -175 215 23 256 -50 -218 168 31 319
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