ACR Electronics SmartReader Plus Manual de usuario descargar pdf (Pagina 146)

TrendReader Standard 2

135

2005 ACR Systems Inc.

''Calculate engineering value from [2] 12bit Logger-> [11] 5VDC-> [18] 0-5VDC

Dim

Double

Eqn("5FD6BC0D64D34f73AFC40144A13A7998", X)

ANSWER0= - 12.5 + 25*X

' Apply square root of logger's sample rate

ANSWER0=ANSWER0+ Math.Sqrt(Logger.SampleRate)

End

Sub

7.8.5.3

Object Properties

To get the logger level properties, enter:

X=Logger.{ Property name }

To get the current channel level properties, enter:

X=Logger.Channel ( CurrentChannelIndex ). { Property name }

You can either type in the Property name, or select it from the list that appears because of the

intellisense feature of the editor.

Example:

This example demonstrates how to include calibration properties in an equation.

Sub

EQN101( )

''Calculate engineering value from [2] 12bit Logger-> [11] 5VDC-> [18] 0-5VDC

Dim

Double

Eqn("5FD6BC0D64D34f73AFC40144A13A7998",X)

ANSWER0= - 12.5 + 25*X

' Apply low calibration value of current channel

ANSWER0=ANSWER0+ (

Logger.Channel(CurrentChannelIndex).LowCalibration ) / 100

End

Sub

7.8.5.4

Linear Equation

The following is an example of the equation for an SRP7 logger using a relative humidity

sensor.

Input sensor:

relative humidity sensor with output of 0.5-4.5V

representing 0-100% humidity

Logger:

SRP7 0-5V channel

Equation output:

0-100%

The easiest way to create a linear equation for the relative humidity sensor is through the New

Equation Wizard. The resulting equation will be:

Sub

EQN101( )

''Calculate engineering value from SmartReaderPlus-> [11] 5VDC-> [18] 0-5VDC

Dim

Double

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