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FeaturesFeatures
OperationOperation
Can be used for vessel under high pressure and temperature
Designed to ASME B31.1Weather proofExplosion-proof & Frame-proofUnique and reliable : Snap acting switch mechanismVibration resistant - eliminates fake trips by special springA wide variety of chambers can be used.Multiple switches can be assembled in a unit for economical purpose.Weld procedures approved to KEPIC MQ and ASME IXMaterial certification to ASTM, ASME, JIS, KS StandardsQualified to IEEE 323-2003, and IEEE344-2004Applicable to hermetical seal type snap action switch
The electr ic contact switch operates as per theprinciple of Magnetism, and the electric contact switchis normally " relay-off " position because of tensionspring.There is magnetic steel on the edge of Float s Rod,and this magnetic steel sticks to magnet installedinside the housing when the level goes up as Fig. 1.At this time, electric contact switch turns on becausethe switch designed to " relay-on " when the magnetsticks to magnetic steel of the Float s Rod.
When the level goes down such as Fig. 2, on thecontrary, the Float goes down and accordingly themagnetic steel on the Float s edge goes down.Therefore, the magnetic steel detaches from themagnet and the switch is returning to " relay-off "position due to tension spring.
Fig.1. Switch Connected Fig.2. Switch Released
SMC-7Series Vertical Float Type Level Switch
49
This product is a unique level switch as a critical ProcessInstrument covering high pressure and high temperature.Chamber material for this product is not only carbonsteel, but also many variety steel materials including316LSS and 304SS.This product has been produced for suitable in water andboi ler contro l process, meet ing var ious industr ia lstandards and requirements to solve erroneous causesthat have occurred in conventional industrial fields.The customizing for this product is possible for specificoperational condition and anti-corrosion. Please contactour sales staff if you have any special design for thisproduct.
KOSHA (The Korea Occupational Safety and Health Agency)- ApprovalExplosion proof Ex d IIC T6(-20 AMB 60 )General Area, Weatherproof type IP65
TUV- ApprovalCertificate
EN-61010-1-2001KTL(Korea Testing Laboratory)- Tested to
verify the requirements of Nuclear Power Plant Quality Standards. IEC Pub.60068 Basic Environmental Testing Procedures
KEPIC Certificate of RegistrationMN-125
SEOJIN INSTECH has been assessed andapproved by CREBIZ QM against ISO 9001 : 2000 for the design, development, assemblyand re-calibration of precision instruments andsystems for the measurement and indication ofelectrical signals and, level, flow and water/steam systems.
With over 30 year worldwide experience in thethermal power plant, nuclear power plant andpetro-chemical industries, SEOJIN INSTECH isable to accommodate testing, surveying anddocumentation requirements as specified at thet ime of order. Inspect ion by customers ornominated inspect ion agencies can bearranged.
ApprovalsApprovals
Quality AssuranceQuality Assurance
Introduction Introduction
ISO 9001:2000/ISO 14000/2004ISO 9001:2000/ISO 14000/2004
SeriesSMC-7Series Vertical Float Type Level Switch
50
Technical SpecificationsTechnical Specifications
Switch AssembleySwitch Assembley
Least Specific Gravity of Process : 0.6 Snap Acting Switch Assembly
- Switching Type : Snap Acting Switch,Dry Contact Type
- Contact(Output) : 1 SPDT, 2 SPDT, 1 DPDT- Accuracy : 1mm, - Maximum Applicable Temperature : 400- Body Material : 304SS- Terminal Material : Pure Ceramic
Chamber- Made According to ASME B31.1,KEPIC MGE. - Material : CS(Std.), 304SS, 316SS, etc.
Float - Material : 316SS(Std.), Monel- Float Specific Gravity : Minimum 0.4- Size : SMC-73 : OD 90mm,
SMC-75 : OD 110mm, - Maximum Temperature of Process Liquid : 400- Maximum Pressure of Process :
SMC-73 : 46Bar, SMC-75 : 70Bar- Hydrostatic Test Pressure :
SMC-73 : 70Bar, SMC-75 : 105Bar
Where the product is produced with the cooling fin, themaximum allowable temperature of pressurized liquidprocess is up 500 . Except that the specific gravity shallbe beyond 0.6.
Note(1) It may only apply into the ambient temperature less than 60
Snap Acting Switch Assembly Chart
Type (Model) SM1S SM1D SM2S SM2D SM3S SM3D SM4S SM4D SM5S SM5D
Action
Max. Process Liquid Temp. (Note1)
Micro Switch Operating Temperature Range
Voltage & Current
Remark
SPDT / DPDT SPDT / DPDT SPDT / DPDT SPDT / DPDT SPDT / DPDT
120 230 230 400 400
- 25~80 - 54~200 - 54~204 - 65~260 - 65~400
250V AC 10A 250V AC 5A 250V AC 15A 115V AC 1A 250V AC 1A
125V DC 0.6A 125V DC 0.5A 125V DC 1A 28V DC 3A 30V DC 1A
hermetical seal
SMC-7Series Vertical Float Type Level Switch
51
Switch EnclosureSwitch Enclosure
Switch Action IndicatorSwitch Action Indicator
The product is designed either as a model of the extremely lowestpower consumption, or only activated when it is contacted in theswitch. Either may be it not only operated by a separated powersource in the site but also by an independent power source (drycell). It has been proved against high-thermal impact by structuringwith stainless steel body, laminating with polycarbonate resincombined with radiation component.
Body Material : Stainless Steel, PolycarbonateLight Source : LEDRange of Power Voltage : 5~24V DCAmbient Temp. : -5~60Continuous Running Time(at 25 ) by Battery :144hr* 8month life time for event action condition
Protection : NEMA 4 / IP65Installation : 1" NPT
Type (Model)
A
B
C
MaterialCover Base
Dimension Conduit entriesSpecification forProtection
Drawn CS Al Alloy
Al Alloy Al Alloy
Al Alloy Al Alloy
NEMA 4x
IP65
NEMA 4x / IP65
Ex d IIC T6
NEMA 4x
IP65
117 x 218H 3/4 PF
150 x 255H 3/4 PF
150 x 190H 3/4 PF
TYPE A TYPE B TYPE C
SMC-7Series Vertical Float Type Level Switch
52
Ordering InformationsOrdering Informations
Vertical Float Type Level Switch (4 Bottle Seal Type - Max. Pressure : 46Bar)
SMC - 73 B 1 A 1 A 1 A 1 A 1 A
PROCESS TEMP'(CONTACT RATING)A = Max.120 (10A 250V AC / 0.6A 125V DC) B = Max.230 (5A 250V AC / 0.5A 125V DC) C = Max.400 (1A 250V AC / 1A 30V DC) D = Max.230 (15A 250V AC / 1A 125V DC) E = Max.400 (1A 115V AC / 3A 28V DC)
(Hermetical Seal Type)
PROCESS CONNECTION TYPE1 = Side-Bottom(Socket Welding)(Std.) 2 = Side-Side(Socket Welding) 3 = Side-Side(Elbow Type, Socket Welding) 4 = Side-Side(Tee Type, Socket Welding)
A = MFR Std.(SEOJIN Spec.)OP = etc.(Customer Requirements)
PAINTING
1 = NONEOP = etc.
DRAIN PARTS
A = PF 3/4 (Std.)B = PT 3/4
OP = etc.
CONDUIT CONNECTION
1 = Carbon Steel(Std.) 2 = 304 SS 3 = 316 SS
CHAMBER MATERIAL
A = 316 SS(Std.) FLOAT MATERIAL
1 = 1 SPDT2 = 1 DPDT (2 SPDT)
SNAP SWITCH ACTION (OUTPUT)
B = 4 Bottle Seal Type(Max. Temp : 400 , Max. Press : 46 Bar)
MODEL SELECTION
1 = Weather Proof (Std., IP65, C.S Cover)2 = Explosion Proof (Ex d llC T6, IP65)
ENCLOSURE
A = 1 S.W(Std.) B = 3/4 S.W
PROCESS CONNECTION SIZE
TYPE 1(STD) TYPE 2 TYPE 3 TYPE 4
117
108
90
SMC-73B 4 Bottle Seal Type
53
Ordering InformationsOrdering Informations
Vertical Float Type Level Switch (5 Bottle Seal Type - Max. Pressure : 70Bar)
SMC - 75 B 1 A 1 A 1 A 1 A 1 A
PROCESS TEMP'(CONTACT RATING)A = Max.120 (10A 250V AC / 0.6A 125V DC) B = Max.230 (5A 250V AC / 0.5A 125V DC) C = Max.400 (1A 250V AC / 1A 30V DC) D = Max.230 (15A 250V AC / 1A 125V DC) E = Max.400 (1A 115V AC / 3A 28V DC)
(Hermetical Seal Type)
PROCESS CONNECTION TYPE1 = Side-Bottom(Socket Welding)(Std.) 2 = Side-Side(Socket Welding) 3 = Side-Side(Elbow Type, Socket Welding) 4 = Side-Side(Tee Type, Socket Welding)
A = MFR Std.(SEOJIN Spec.)OP = etc.(Customer Requirements)
PAINTING
1 = NONEOP = etc.
DRAIN PARTS
A = PF 3/4 (Std.)B = PT 3/4
OP = etc.
CONDUIT CONNECTION
1 = Carbon Steel(Std.) 2 = 304 SS 3 = 316 SS
OP = etc.
CHAMBER MATERIAL
A = 316 SS(Std.) B = MONEL
FLOAT MATERIAL
1 = 1 SPDT2 = 1 DPDT (2 SPDT)
SNAP SWITCH ACTION (OUTPUT)
B = 5 Bottle Seal Type(Max. Temp : 400 , Max. Press : 70 Bar)
MODEL SELECTION
1 = Weather Proof (STD, IP65, C.S Cover)2 = Explosion Proof (Ex d llC T6, IP65)
ENCLOSURE
A = 1 S.W (Std.) B = 3/4 S.W
PROCESS CONNECTION SIZE
TYPE 1(STD) TYPE 2 TYPE 3 TYPE 4117
141.3
110
SMC-75B 5 Bottle Seal Type
54
Ordering InformationsOrdering Informations
Vertical Float Type Level Switch (5 Flange Type)
SMC - 75 F 1 A 1 A 1 A 1
PROCESS TEMP'(CONTACT RATING)1 = Max.120 (10A 250V AC / 0.6A 125V DC) 2 = Max.230 (5A 250V AC / 0.5A 125V DC) 3 = Max.400 (1A 250V AC / 1A 30V DC) 4 = Max.230 (15A 250V AC / 1A 125V DC) 5 = Max.400 (1A 115V AC / 3A 28V DC)
(Hermetical Seal Type)
MOUNTING TYPEA = 5 150# ANSI RF Flange(Std.) B = 5 300# ANSI RF FlangeC = 5 600# ANSI RF FlangeD = 5 900# ANSI RF FlangeE = 5 1500# ANSI RF Flange
OP = etc.
1 = PF 3/4 (Std.)2 = PT 3/4
OP = etc.
CONDUIT CONNECTION
1 = 316 SS(Std.) 2 = MONEL
FLOAT MATERIAL
A = 1 SPDTB = 1 DPDT
SNAP SWITCH ACTION (OUTPUT)
F = 5 Bottle Flange Type (Max. Temp:400 , Max. Press:70 Bar)
MODEL SELECTION
A = Weather Proof (Std., IP65, C.S Cover)B = Explosion Proof (Ex d llC T6, IP65)
ENCLOSURE
1 = 180mm (Std., External Cage of SEOJIN INSTECH) 2 = 150 ~ 300mm (Tank Top Mounting Length = Min. 150mm)
SETPOINT
110
SMC-75F 5 Flange Type
55
Ordering InformationsOrdering Informations
Vertical Float Type Level Switch (Chamber)
SMC - 75CH A 1 A 1 A 1 A 1 A
LENGTH (CTO C)1 = 0 ~ 500mm2 = 0 ~ 1,000mm3 = 0 ~ 1,500mm4 = 0 ~ 2,000mm
OP = etc.
PROCESS CONNECTION TYPEA = Socket Welding Type(Std.)B = Flange Type
A = Hydro Test OnlyB = PT Test + Hydro Test
OP = etc.
TEST FOR WELDING
1 = MFR Std.(SEOJIN Spec.)OP = etc.(Customer Requirements)
PAINTING
1 = Carbon Steel(Std..)2 = 304 SS3 = 316 SS4 = Carbon Steel with Tefron Coating
OP = etc.
CHAMBER MATERIAL
A = 5 150# ANSI RF Flange(Std.)B = 5 300# ANSI RF FlangeC = 5 600# ANSI RF FlangeD = 5 900# ANSI RF FlangeE = 5 1500# ANSI RF Flange
OP = etc.
TOP MOUNTING SIZE
A = Side-Side(Socket Welding Type)B = Side-Bottom(Socket Welding Type)C = Side-Side(Flange Type)D = Side-Bottom(Flange Type)
OP = etc.
TYPE OF CHAMBER
A = PT 1/2 With Plug(Std.)B = PT 1/2 With Glove ValveC = None
OP = etc.
DRAIN PARTS (Side -Side Type Only)
1 = 1 (Std.) 2 = 3/43 = 1-1/24 = 2
OP = etc.
PROCESS CONNECTION SIZE
SIDE-BOTTOM (SW) SIDE-BOTTOM (FLANGE) SIDE-SIDE (SW) SIDE-SIDE (FLANGE)
SMC-75CH Chamber
56
KOSHA (The Korea Occupational Safety and HealthAgency)- ApprovalExplosion proof Ex d IIC T6(-20 AMB 60 )General Area, Weather proof Type IP65
TUV- Approval CertificateEN-61010-1-2001
KTL(Korea Testing Laboratory)- Tested to verify therequirements of Nuclear Power Plant Quality Standards. IEC Pub.60068 Basic Environmental Testing Procedures.
KEPIC Certificate of RegistrationMN-125
ApprovalsApprovals
FeaturesFeatures
Can be used to detect leaks or spills from valves,vessels, and pipe lines in plant Designed to ASME B31.1Explosion-proof & Weather proofUnique and reliable; snap acting switch mechanismVibration resistant- eliminates spurious trips by special springMultiple switches can be assembled in a unit for economical purpose.Weld procedures approved to KEPIC MQ and ASME IXMaterial certification to ASTM, ASME, JIS, KS StandardsQualified to IEEE 323-2003, and IEEE344-2004Applicable to hermetical seal type snap action switch
Alarm Signal orDrain pump power
Model
Flood Level Switch to Detect Leaks or Spills
SMC-71
57
Technical SpecificationsTechnical Specifications
Least Specific Gravity of Process: 0.6 Snap Acting Switch Assembly
- Switching type : Snap Acting Switch,Dry Contact Type
- Contact(Output) : 1 SPDT, 1 DPDT- Precision : 1mm, - Body Material : 304SS- Terminal Material: Pure Ceramic
Chamber- Made According to ASME B31.1,KEPIC MGE- Material : C.S(Std.), 316SS, etc.
Float - Material : 316SS(Std.)- Float Specific Gravity: Minimum 0.4- Size : OD 90mm, - Maximum Temperature : 250
General Technical specification
With over 30 year worldwide experience in thethermal power plant, nuclear power plant andpetro-chemical industries, SEOJIN INSTECH isable to accommodate testing, surveying anddocumentation requirements as specified at thet ime of order. Inspect ion by customers ornominated inspect ion agencies can bearranged.
Quality AssuranceQuality Assurance 150
14
Flood Level Switch to Detect Leaks or Spills
Printed by KOART. 2010. 04 98-CG-006-1. Rev:0
Specifications subject to change without notice.
#91-18 Gunja-dong, Gwangjin-gu, Seoul, KoreaTel: 82-2-2204-8500 Fax: 82-2-466-6445http://www.seojin.biz
Switch AssemblySwitch Assembly
Snap Acting Switch Assembly
Type (Model) SM1S SM1D SM3S SM3D SM4S SM4D
Action
Operating Temperature Range
Voltage & Current
Remark
SPDT / DPDT SPDT / DPDT SPDT / DPDT
-25~80 -54~204 -65~260
250V AC 10A 250V AC 15A 115V AC 1A
125V DC 0.6A 125V DC 1A 28V DC 3A
Ordering InformationsOrdering Informations
Floor Level Switch to Detect Leaks or Spills
SMC 71 A 1 A 1 A 1
1 = MFR Std.(SEOJIN Spec.)OP = etc.
PAINTING
A = PF 3/4 (Std.)B = PF 1
OP = etc.
CONDUIT CONNECTION
1 = 316SSOP = etc.
FLOAT MATERIAL
A = Carbon SteelB = 316SS
OP = etc.
WETPART MATERIAL
A = 1 SPDTB = 1 DPDT
SNAP ACTION SWITCH (OUTPUT) OPERATING TEMP' (CONTACT RATING)1 = -25 ~ 80 (10A 250V AC / 0.6A 125V DC) 2 = -54 ~ 204 (15A 250V AC / 1A 125V DC) 3 = -65 ~260 (1A 115V AC / 3A 28V DC)
(Hermetical Seal Type)
Hermetical Seal
58
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