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home< Product < DIGITAL VALVE POSITIONER

DIGITAL VALVE POSITIONER

SER (Rotary Type)

Introduction

Reliable valve control device guaranteeing optimum span and zero settings by smart auto-calibration function

Features

- Auto-calibration for optimum zero and span setting
- Simple and easy to set
- Precise control performance and high dynamic response
- Pressure regulator built in to eliminate variations in supply air pressure
- Low air consumption due to piezo electric microvalve
- Input/output signal isolated
- Automatic detection for DA(direct acting) or RA(reverse acting)
- Single and double acting available
- No hunting on the small actuators
- 1/2 split range available
- High resistance against shock and vibration

Option

- Position transmitter (4…20 output signal)
- 2 X alarm limit (open / close)
- Explosion proof type Ex d IIB+H2 T6

Specifications

Input signal 4 – 20DC
Voltage supply Min./Max8.5 VDC / 30VDC (425ohm)
Power consumption30.8㎽ @ 4㎃ / 170 @ 20
Characteristic Linear
Operating angle40° - 90°
Air supply pressure1.5 - 7.0bar (20 - 100psi)
Pressurized air or allowed gas, free of water, oil, and dust
Air capacity6.6㎏/h=5.4N㎥/h=3scfm@supply air of 1.4bar (20psi)
Air consumption< 0.04kg/h
Output pressure range 0 - 100% of supply air pressure
LinearityWithin ± 0.5%
HysteresisWithin 0.2%
SensitivityWithin ± 0.2%
Operationg temperature-20 ~ +80
Pneumatic connections Rc 1/4 or 1/4 NPT
Electrical connections G 1/2 or 1/2 NPT
Protection class

IP66, Explosion proof Ex d IIB+H2 T6

Body materialAluminum die-cast
Weight 2.5kg

How to order

SER -
Protection Class
Feedback
Shaft
Pressure
Gauge(SUP.OUT)
Position Feedback
Connection Threads
Mounting Bracket
 
Description Code
Protection class :F : Explosion proof Exd IIB+H2 T6
W : Weatherproof to IP66
Feedback shaft :

F : Fork lever
N : NAMUR shaft 
     (direct mounting)

Pressure gauge :

1 : 6 bar (90psi)
2 : 10 bar (150psi)

Description Code
Position feedback :N : None
O : Position transmitter
     (4-20 output signal)
L : 2 X alarm limit
M : O + L

Connection threads :
(pneumatic-electrical)

3 : Rc 1/4 – G 1/2
    (standard)
4 : NPT 1/4 – NPT 1/2
5 : Rc 1/4 – M20 X 1.5
Mounting bracket :

N : None
R : Multi-size bracket
     for DIN VDI/VDE 3845
     (130 X 30 X 50 bracket
     on request)