FOXBORO P0900ZV

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FOXBORO P0900ZV Controller module In Stock

As the measurement goes below the lower control point, the control valve fully opens (or closes). 

This reverses the measurement but there is no change in control action until the measurement 

crosses the upper control point, at which time the valve fully closes (or opens). One control point 

is determined by the setting index and the other control point by the gap width (see example 

below).

Gap width = difference between control points divided by span.

For example, if measurement scale is graduated from 20 to 120, and control points are to 

be 70 and 90, gap width

To reverse control action, push up latch and rotate dial so that latch is on other side of 

stop, then push down latch (see figure below).

3. Turn PROPORTIONAL BAND adjustment (on control dial) to 400 or to safe high 

value.

Turn DERIVATIVE adjustment (if present) to 0.05.

Turn RESET adjustment (if present) to 50 or safe high value.

4. Open shutoff valves and close bypass valve.

5. Turn set point knob (or adjust remote set point, if present) so that set point index is at 

desired value.

6. If controller is not equipped with optional automatic-manual transfer, proceed to 

Step 7. If controller is equipped with transfer, start up in manual as follows:

a. Move transfer switch to manual

b. Turn on 20 psi (140 kPa) air supply. Blow out filter.

c. Adjust output with regulator so that measurement pointer is held as close as 

possible to set point index.

d. After measurement has stabilized, move transfer switch to automatic. Process is now on automatic control.

7. If controller is not equipped with optional automatic-manual switch, turn on 20 psi 

(140 kPa) air supply. Blow out filter.

8. After measurement has stabilized, adjust proportional band, derivative, and reset 

controls (if present) for best process operation.

Product details:

FOXBORO P0900ZV Controller module

Contact information：

Contact person：Luna Chen

Email Address:：sales6@saulplc.com

WhatApp： +86 13358378970

We look forward to your inquiry and will get back to you as soon as possible.

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