NIVOMAG M A G N E T I C L E V E L S W I T C H E S O UR P ROFESSION IS Y OUR L EVEL
N I V O M A G GENERAL NIVOMAG MK-00 series magnetic float level switches are used for point level detection of liquids in all types of vessels. Operation without external power, side or top mounting, wide temperature and pressure ranges, various process connections, stainless steel wetted parts and Ex versions make it a universally applicable level switch. MODEL SELECTION To assist in the selection of the correct model the following tables and diagrams are provided. When selecting a model due consideration must be given to fixed or adjustable hysteresis, liquid density, mounting position and process connection. ARM LENGTH (mm) FLOAT Ø (mm) 5 64 10 MINIMUM LIQUID DENSITY (kg/dm ) 0 100 00 00 1000 000 0.7 0.7 0.8 0.8 0.85 0.8 0.7 TYPE Fixed differential Adjustable differential Straight arm L or Z arm Side mounted Top mounted Rubber protection sleeve Flanged process connection Threaded process connection Ex version Tester MK- 1 MK- MK- MODELS FIXED SWITCH DIFFERENTIAL Side mounted MKA10 Rubber protection sleeve MKG10 MKS10 Threaded process connection MKA1B MKA1N Flanged process connection MKA11
N I V O M A G MKU10 SWITCHING DATA TYPE: MK1-0 -1-9 -5 Lk= arm length 0 100 L= protrusion length 0 1 Lm= max. shifting 118 180 X1= high switch point 7 7 X= low switch point 16 0 Note: values for water at 0 C - -6 00 41 4 45 47 - -7 00 51 86 81 4 0. MPa.5 MPa Side mounted, Z arm MKA104Z Top mounted, L arm MKA-10-4L *Only one of the values can be specified Lsh = high switch point Lsl = low switch point ADJUSTABLE SWITCH DIFFERENTIAL Switch differential between high and low switch point can be changed by changing positions of the two pins. Side mounted with adjustable switch differential MKA0 SWITCHING DATA TYPE: MK -0-1 - - -9-5 -6-7 Lk= arm length 0 100 00 00 L= protrusion length 54 7 47 57 X1= min. high switch point 5 5 7 94 X= min. low switch point 5 48 61 68 X= max. high switch point 110 190 50 10 X4= max. low switch point 90 170 50 05 Note: values for water at 0 C
N I V O M A G Top mounted with adjustable switch differential MKA0 Switch differential can be adjusted by moving the rings on the rod. Weight of different rod lengths is compensated for by adjusting the counter weight. Connection flange ELECTRICAL CONNECTION Normal units Ex units Underwater version Cable specification: NSSHöu-J 5x1,5mm Cable diameter:15 mm ACCESSORIES Counter flange MFF Counter flange for tester MFF Tester MMK Tester is mounted between the unit and counter weight. Operation of the unit can be checked via tester without dismantling or filling/emptying procedures.
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MK0P0A6 TECHNICAL DATA TYPE SIDE MOUNTING TOP MOUNTING MKA-1 MKU-1 MKA- MKG-1 MKS-1 MKA- Nominal pressure max. Liquid temperature Ambient temperature Liquid density Switch differential Protrusion length Material of wetted parts Housing material Switch action Switch rating Electrical connection Mechanical protection Ex protection mark Certificates Weight (approx) ORDER TYPE +rubber sleeve +silicon rubber sleeve +rubber sleeve COUNTER FLANGE MATERIAL Ex version Please specify cable length when order +silicon rubber sleeve G Mild steel 1 Stainless steel A S U V Z NIVOMAG MFF - 1.5 MPa (5 bar) [MKU: 0./.5 MPa ( bar/5 bar)] 1.6 MPa (16 bar) MKA: -0 C... +50 C [MKU: -0 C... +50 C] 0 C...+100 C 0 C...+00 C -0 C...+50 C -0 C...+80 C min 0.7 0.85 kg/dm see figures Fixed Adjustable Fixed Fixed Adjustable, min. 18 mm See figures Stainless steel Paint coated aluminium 1 micro-switch with 1 closing and 1 opening contact (NO and NC) 50V AC1 10A; 0V DC1 0.6A (IEC 947-5-1) 50V AC1.5A; 0V DC1 0.A (IEC 947-5-1) 1x Pg 16 cable 5x.5 mm wire cross section (MKU: integrated cable) NIVOMAG MK SWITCH DIFFERENTIAL Fixed 1 Adjustable Adjustable, vertical float CONNECTION FLANGE 9 flange PN 5 0 DN 80 PN 40 mild steel DN 100 PN 40 mild steel DN 15 PN 40 mild steel DN 150 PN 40 mild steel DN 80 PN 40 st. steel DN 100 PN 40 st. steel DN 15 PN 40 st. steel DN 150 PN 40 st. steel BSP NPT TESTER IP 65 (MKU: IP 68 up to 0 m water gauge) EEx dme IIC T4... T6 Cenelec, Germanischer Lloyd 1.8.5 kg 1 4 5 6 7 8 B N NIVOMAG MMK - 1 0 ARM LENGTH Normal version EX version 0 mm 100 mm 00 mm 00 mm Z, or L arm 0 mm 100 mm 00 mm 00 mm Z, or L arm MK PROTRUSION LENGTH Normal version EX version 165 mm 65 mm 65 mm 165 mm 65 mm 65 mm 0 1 4 9 5 6 7 8 1 5 6 7 Technical specifications may be changed without notice FLANGE SIZE MATERIAL 9 flange PN5 0 9 PN5 for Tester 1 Mild steel 1 Stainless steel NIVELCO PROCESS CONTROL LTD. H-104 BUDAPEST, DUGONICS U. 11. TEL.: (6-1) 69-7575 FAX: (6-1) 69-8585 E-mail: sales@nivelco.hu http://www.nivelco.hu