Seg SP760 Series, Instruction Manual

Page: 12 / 41

Smart Positioner
SP760 Series
Ver 1.0 SHINHWA Eng.
- 11 -
2-7 Products Code
2-8 Principle of Operation
Once Control PCB(3) receives an input signal (4~20mA), the input current is delivered
to coil(6) of Torque Motor(1) from which magnetic force is generated in core(7) and
the force and polarity difference with a permanent magnet moves nozzle flapper(9) by
which nozzle(8) and nozzle flapper(9) are far isolated, lowering the pressure of nozzle
pressure chamber and finally generating the difference of pressure with the pressure
chamber(14).Therefore, spool(31) pushes poppetA(12), opening port A : OUT 1 output
Model SP760
Acting Type
Single
Double
S
D
Motion Type
Linear 20~80 mm
80~160mm
L1
L2
Rotary Standard
Fork lever
Namur
R0
R1
R2
Feedback None
Position transmitter (4~20mA DC)
0
1
Lock Condition Fail safe
Fail Lock
1
2
Explosion proof type
Non Explosive type (IP66)
0
FlameProof Type
(dust proof)
Ex d IIC T6/T5
(Ex tb IIIC T80℃/T90℃)
(KCs)
1
Ex db IIC T6/T5 Gb
(Ex tb IIIC T80℃/T90℃ Db)
(IECEx)
2
II 2G Ex db IIC T6/T5 Gb
(II 2D Ex tb IIIC T80℃/T90℃ Db)
(ATEX)
3
Ex db IIC T6/T5 Gb
(Ex tb IIIC T80℃/T90℃ Db)
(NEPSI)
4
Connection
Air – PT1/4, Conduit – G(PF)1/2
Air – NPT1/4, Conduit – NPT1/2
Air – NPT1/4, Conduit – M20
G
N
M
Position L/S
None
(2×SPDT)
0
1
Option
None
HART
0
H