6. Application examples
Example 1: Flow measurement
A level has to be converted into a flow according to the following formula.
Q ( calculated flow speed in liter per minute ) = 0.0072*h *60
h ( level range in mbar per second ) = 0 – 30 mbar
In 4.1 Channel Mode of Configuration, set AI1 as follows,
Name: Level 1 Desc: xxxxxx
Method: Instant Speed: 1 S ( 1 second / data )
Offset: 0.00 Gain: 1.000
Sensor: Current Unit: mA Range: 4.0 〜 20.0
Scale Unit: mbar Low: 0.00 High: 30.00
Press Math to get into Math Channel and set Math1 as follows,
Name: Flow 1 Desc: xxxxxx
Type: Enable Log Method: Instant Speed: 1 S
Expression: 0.0072*AI1^2.5*60
Unit: l/min Low: 0.0 High: 2200.0
Example 2: 8:00 am start logging, 17:00 pm stop logging Monday-Friday
Select Tools mode of Configuration, and define Timer 1 – 4 as follows,
Timer 1 Timer 2
Type: Daily Action: Enable Type: Daily Action: Enable
Time: 8 Hour 0 Min. Time: 17 Hour 0 Min.
Job 1: Start logging Job 1: Stop logging
Timer 3 Timer 4
Type: Weekly Action: Enable Type: Weekly Action: Enable
Time: Saturday 8 Hour 1 Min Time: Sunday 8 Hour 1 Min
Job1: Stop logging Job1: Stop logging
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