L8A-100 Pneumatic Smart Valve Positioner

L8A-100 Pneumatic Electrico Rotary Positioner
L8A-100 Pneumatic Electrico Rotary Positioner
L8A-100 Pneumatic Electrico Rotary Positioner
L8A-100 Pneumatic Electrico Rotary Positioner
L8A-100 Pneumatic Electrico Rotary Positioner

L8A-100 electric valve positioner is a device that receives 4 ~ 20mA DC signal control and precisely adjusts the valve opening through pneumatic actuator.

Description

L8A-100 electric valve positioner is a device that receives 4 ~ 20mA DC signal control and precisely adjusts the valve opening through pneumatic actuator. The positioner is equipped with an air filter pressure reducer to display the opening (percentage) of the valve position and output feedback signal (4 ~ 20mA). The compressed air of the pressure of 5~10kgf/cm² can be directly connected to the "SUP" input interface of the positioner.

Precautions
Note

For the safety of installation personnel, products and systems,

please observe the safety precautions in this manual when installing or commissioning this product.

Improper modification or repair of the product may cause damage.

Please contact us if you need to repair or modify this product.

This product is an accessory of control valve.

Please observe the operation precautions of corresponding control valve at the same time during operation.

●Please handle with care during transportation, installation and use. Excessive vibration and impact may damage the product.

●Do not use beyond the scope of product technical p arameters.

●Do not store products in high temperature and high humidity environment for a long time. When using, it should be covered to prevent rainwater from entering into the product.

 

 

Warranty Period

The warranty period of the product is subject to the date of manufacture with a warranty period of 1 years.

 

 

Technical Parameters

Item

L8A-100L

L8A-100R

Single action

Dual action

Single action

Dual action

Input signal

4~20mA DC

Impedance

250±15Ω (model without feedback)

Supply pressure

1.4~7.0kgf/cm2(20~100psi)

Stroke

10~150mm

0~90º

Air source interface size

PT(NPT) 1/4

Pressure gauge interface size

PT(NPT) 1/8

Power supply inerface size

PF 1/2 (G 1/2)

Protection level

IP66

Ambient temperature

Working tempereture

Standard model: -20~70℃
Low temperature model: -40~70℃
(no indication below -20℃)

Explosion proof temperature

-20~60℃

Linearity

±1.0% F.S

Hysteresis

1.0% F.S

Sensitivity

±0.2% F.S

±0.5% F.S

±0.2% F.S

±0.5% F.S

Repeatability

±0.5% F.S

Air consumption

3LPM (Sup=1.4kgf/cm²,20psi)

Flow

80LPM (Sup=1.4kgf/cm²,20psi)

Material

Die casting aluminum

Weight

2.5Kg

2.5Kg

Model with number display function/feedback function

Input signal

4~20mA DC (two-wire system)

Input load voltage

MAX 15V

Feedback signal

4~20mA DC (two-wire system)

Feedback signal power

DC 24V±15%

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