DeZurik P42 Istruzioni - Pagina 4

Sfoglia online o scarica il pdf Istruzioni per Posizionatori di valvole DeZurik P42. DeZurik P42 11. Pmv positioners

DeZURIK

Description

The Model P41, P41D and P42 PMV Electro-Pneumatic positioner is a precision instrument which,

when used in conjunction with a cylinder actuator, can provide the exacting control necessary to satisfy

the most demanding process requirements. The positioner will accept either a 0–20mA or 4–20mA

input signal.

Each cam is designed to provide split range instrument signals. Standard cam characterization is linear;

however, other characterizations are available.

Positioners installed in hazardous areas can be ignition sources. Ensure positioners used in

hazardous areas have proper fire/explosion ratings.

1. Connect instrument quality supply air to the positioner "S" port.

Note: Supply air should be clean, dry and oil-free, with pressure not exceeding the maximum pressure

rating of the cylinder.

2. Remove the top cover and the side frame from the positioner to allow access to the terminal

block.

3. Connect input signal wires to the terminal block inside the positioner.

Note: The positioner case has a 1/2" NPT hole for wiring connector.

4. Actuator piping is connected at the factory to positioner ports C1 and C2. When used on spring-

return actuators, one of the ports is plugged.

D10112

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August 2012