ISO 9001/14001
Displacement Type Level Switch
Displacement Type Level Switch
Features
SMC Type Level Switch can be used to
prevent an overflow of liquids in a variety of
tanks by starting a draining pump or stopping
a filling pump.
Safe actuation of the switch is accomplished
since the switching parts are completely
separated from the tank.
Setting of High and Low contact points is
flexible, and the cost of equipment does not
depend heavily on measurement distance.
Switching Point can be adjustable by moving
float to up and down only.
Principle
A vertical displacement is induced on Rod and
Core, which are connected to the Displacer
and Spring, due to a change in the spring
tension that results from a change in the
buoyancy of the Displacer when the liquid
level changes. The vertical displacement of the
core causes magnet A to move away from
the Lead Pipe actuating microswitch.
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Specifications Structure
Description SMC series
Application Liquid
Specific Gravity 0.7 1.3
Ambient Temperature 40 200
Process Temperature 40 230
Pressure 30 kgf/cm2 (Max.)
Enclosure Weather Proof
Explosion Proof (Ex d IIC T6, IP65)
Output 1~4 SPDT , 1~4 DPDT
Range 5 m Max.
Switch Type Micro Switch
Contact Rating 15A. 250V AC
Cable Gland PF , PF NO.NAME OF PART MATERIAL
Housing ADC, C AL, C.S 1 HOUSING ASS Y ADC / C AL / C.S
2 FLANGE 304SS
Flange C.S, 304SS, 316SS
3 SET PLATE ASS Y 304SS
Material Spring 304SS & 316SS & Inconel 4 DISPLACER 304SS
5 MICRO SWITCH
Chain 304SS & 316SS & Monel 6 CHAIN 304SS
Displacer 304SS & 316SS & Monel
Certificate ATEX
Control
Table for Chamber Selection
Type 1 Type 2 Type 3 Type 4
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Number of Contact for Control
44
Number of Contact for Control
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Ordering
Ordering Informations
Informations
DISPLACEMENT TYPE LEVEL SWITCH
SMC - 1 A 1 A 1 A
CONDUIT CONNECTION
A = PF (Std.)
B = PT
C = PF
D = PT
OP = etc.
ENCLOSURE
1 = Weather proof (Std.) C.S Cover
2 = Weather proof CAL Cover
3 = Explosion proof ( Ex d IIC, IP65) CAL Cover
MOUNTING SIZE
A = JIS 10K 80A 304SS 6t Flange (Std.)
B = JIS 10K 100A 304SS 6t Flange (Std.)
C = JIS 10K 80A FF C.S Flange
D = JIS 10K 100A FF C.S Flange
E = JIS 10K 80A FF 304SS Flange
F = JIS 10K 100A FF 304SS Flange
OP = etc.
WET PART MATERIAL
1 = 304SS (Std.)
2 = 316SS
3 = Monel (Special Option)
OPERATING TEMP’ & PRESSURE
A = 40 ~ +120 & 10Kgf/Cm 2 (Std.)
B = 40 ~ +230 & 30Kgf/Cm 2 (1S, 2S)
C = 40 ~ +230 & 30Kgf/Cm 2 (3S)
D = 40 ~ +230 & 30Kgf/Cm 2 (4S)
NUMBER OF CONTACT FOR CONTROL
1 = 1 point (Alarm) 9 = 3 point (HH/H/L/LL Alarm SPDT)
2 = 1 point (Alarm DPDT) 10 = 3 point (HH/H/L/LL Alarm DPDT)
3 = 2 point (Alarm) 11 = 4 point (H/L Alarm & Control SPDT)
4 = 2 point (Alarm DPDT) 12 = 4 point (H/L Alarm & Control DPDT)
5 = 2 point (Control) 13 = 4 point (HH/H/L/LL Alarm SPDT)
6 = 2 point (Control DPDT) 14 = 4 point (HH/H/L/LL Alarm DPDT)
7 = 3 point (Alarm, Control) 15 = 4 point (2 Control SPDT)
8 = 3 point (Alarm, Control DPDT) 16 = 4 point (2 Control DPDT)
9 ~14 : only weather proof
CHAMBER
SMC - CH 1 A 1 #####
CHAMBER SCH #
(Pressure Rate)
TYPE OF CHAMBER
1 = Side Side (Flange type)
2 = Side Side (Socket type)
3 = Side Bottom (Flange type)
4 = Side Bottom (Socket type)
OP = etc.
C TO C (Carbon Steel)
A = 300mm
B = 500mm
C = 600mm
D = 800mm
E = 1,000mm
OP = etc.
CHAMBER PARTS MATERIAL
1 = Carbon steel (A105)
2 = 304SS
3 = 316SS
OP = etc.
Printed by KOART. 2010. 04 98-CG-006. Rev : 0
#91-18 Gunja-dong, Gwangjin-gu, Seoul, Korea
Tel: 82-2-2204-8500 Fax: 82-2-466-6445
http://www.seojin.biz
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Specifications subject to change without notice.
