FOXBORO SRI986-BIDS7ZZZNA Valve Positioner

FOXBORO SRI986-BIDS7ZZZNA Valve Positioner

Product Details Introduction

FOXBORO SRI986-BIDS7ZZZNA valve positioner is an intelligent electric pneumatic valve positioner produced by Foxboro (now part of Schneider Electric), widely used in process control systems to accurately convert electrical signals output by the control system into mechanical actions of regulating valves, in order to achieve precise adjustment of variables such as fluid flow rate, pressure, and temperature.

1、 Product Model Analysis (SRI986-BIDS7ZZZNA)

According to the naming convention of Foxboro SRI986 series, this model can be interpreted as follows (for reference only, some characters need to be confirmed in the manufacturer's documentation):

Meaning of Field Positions

SRI986 series name, intelligent electric pneumatic valve positioner

B input signal: 4-20 mA current signal

Type I actuator interface: Linear actuator

D display option: with digital LCD display

S gas source interface and output: standard pneumatic output

7 Protection level/certification: intrinsic safety or explosion-proof (to be confirmed)

ZZZNA special configurations, spare parts, and additional options (specifically defined by the manufacturer)

2、 Core functions

Input Signal Conversion

Receive 4-20 mA analog current signals from the control system;

Convert it into a positioning action for the regulating valve to achieve precise control of the opening.

Intelligent diagnosis and communication (HART optional)

Support HART communication protocol for remote parameter setting, status monitoring, and fault diagnosis;

Can be integrated with DCS and AMS systems to achieve digital operation and maintenance.

High precision and responsiveness

Quickly respond to changes in control signals and maintain stable control;

Zero dead zone and low lag, suitable for closed-loop control scenarios with high requirements.

Equipped with LCD display (D)

It can directly display valve position, signal value, alarm information, etc., making it easy for on-site operation and maintenance personnel to view.

Product imag

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