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home< Product < DIGITAL VALVE POSITIONER

DIGITAL VALVE POSITIONER

SEL (Linear 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./Max

8.5 VDC / 30VDC (425ohm)

Power consumption

30.8㎽ @ 4㎃ / 170 @ 20

Characteristic

Linear

Stoke

5 - 65mm (Max. up to 150mm)

Air supply pressure

1.5 - 7.0bar (20 - 100psi)
Pressurized air or allowed gas, free of water, oil, and dust

Air capacity
(20psi)

6.6㎏/h=5.4N㎥/h=3scfm@supply air of 1.4bar(20psi)

Air consumption

< 0.04kg/h

Linearity

Within ± 0.5%

Hysteresis

Within 0.2%

Sensitivity

Within ± 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 material

Aluminum die-cast

Weight

2.5kg

How to order

 

SEL -
Protection Class
Feedback
Lever
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 lever :

A : Stroke (5 - 65mm)
B : Stroke (10 – 85mm)
C : Stroke (up to 150mm)

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

Description

Code

Position feedback :N : None
     (srandard)
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
L : DIN / IEC 534