Watlow Series 988 Enhanced Uživatelský manuál stáhnout pdf (Strana 7)

WATLOW Series 988 Enhanced Software Features 7

Differential

Requirements

Two inputs and the enhanced software option are required.

Overview

Differential control allows the Series 988 to control one process at a

difference to another process. Input 2 acts as a remote set point input.

However the displayed set point indicates the desired difference between

input 1 and input 2. The set point that input 1 will use is determined by

the equation:

internal set point = input 2 + differential set point

The lower display shows the differential set point, which can be adjusted

with the increment (up-arrow) and decrement (down-arrow) keys.

Please note that while in the differential control mode the internal set

point for input 1 cannot be viewed and must be calculated with the

equation.

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Watlow Series 988 Enhanced Uživatelský manuál Strana 7