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Following to the positioners, variety of accessories are available for valve operation. Especially, the positioner has certain technologies with having high reliability and stability.


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EA10S


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Model EA10S intelligent valve positioners are electro-pneumatic valve positioners that are equipped with microprocessors and operate control valves precisely with PID algorithm, with flameproof type explosion-protected construction.

Unlike conventional electro-pneumatic positioners, EA10S positioners have various functions such as auto calibration, forceful shutoff and flow characteristic change, and can show extremely improved performances of operability and functionality.

HART-Protocol communication is equipped as a normal function and analogue travel transmitter is optional.

These functions are very useful for plant

maintenance by remotely monitoring the operating condition of control valves.


■ Features
1. Easy adjustment by function of auto calibration
2. Display of operation status (valve travel, input signal, error, etc.)
3. Manual buttons enable all kinds of adjustment and setup
4. No handheld communicator is required
5. Adjustment is possible even in explosive environment
6. Easy setup of various flow characteristics
7. Assured shutoff is possible by forceful shutoff function
8. HART-Protocol communication function is equipped

 Standard Specifications

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EA 90A, 91A


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See Catalogue No.MCE-B6103 for details. EA90A,EA91A are force-balanced electro-pneumatic valve positioners used for control valve to control the valve opening position precisely converting electric signals from controller into pneumatic pressure.

■ Features
1. EA91A conforms to “ExsdIICT6” (Explosion Proof type)
2. EA91A is available to use in d2G4 area.
3. EA91A is available to use in flammable and explosive gas atmospheres including Hydrogen and Acetylene.
4. EA90A conforms to “ExiaIICT5” (Intrinsic safety type)
5. Applicable for both globe and rotary valve.
6. Low consumption of Air using low flow pilot.
7. Automatic or manual change by one touch operation.

Specification

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PA92A


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See Catalogue No.MCE-B6106 for details.   Model PA92A pneumatic valve positioner is a force-balanced instrument with semi-bleed type that is mounted on control valve with a single or double acting actuator.

■ Features
1. Compact and light weight design.
2. Available to control either single or double acting actuator, linear and rotary motion, small flow valve and split-range services.
3. Available to operate manually with manual selector mechanism. 4. Minimized running cost with low consumption of Air.
5. Simple and strong construction and excellent reliability.
6. Extremely easy to adjust and maintenance by having a component unit of adjustment mechanism.

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Air Filter Regulators


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MR2000 Air Filter Regulator is used to clean supply Air from moisture or dust to protect pneumatic instruments from damage or trouble. Air Filter Regulator also keeps the output pressure at specified value even if supply pressure or Air consumption varies. Air Filter Regulator is used widely in the instrumentation process field.

Specification

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Pneumatic Relays

AR2005.2031? ???????????

Pneumatic Relay changes air flow-route when signal is too high or too low compared with set-pressure. This is mainly used for emergency equipment, but also used for loch-up valve or switch-valve.

Specification

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