Actual flow

This calculation requires a differential pressure sensor or linear flow sensor connected to the module. The next table shows the type of input and the corresponding formula for calculation of the chilled water flow.

Table 1.   Chilled water flow calculation

CDP-01

Input sensor “ChillDiffPress”

Chilled water flow

0

Linear flow signal

Flow = CDP-02 * SensorInput

1

Differential pressure sensor

Flow = CDP-02 * SQRT(SensorInput)


Whereby

“SensorInput” is a:

CDP-02 = conversion constant.

The chilled water flow is displayed by parameter DISP-01.

Table 2.   Parameter List

Description

Value Range

Default Value

Unit

CDP-01: input signal

0 = linear

1 = differential pressure

0…1

1

-

CDP-02: conversion constant

0…9999

1

-

DISP-01: actual flow chiller

-

-

kg/s