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Example 2.3:
This example is a pulse output from a flow meter or energy meter.
In this example, the water flow meter has a range of 0~80Hz = 0~1000 l/sec (litres per second), and this signal is wired
into one of the 16 analogue inputs on the 2400-A16.
The closest range on the 2400-A16 is 0~100Hz.
By using simple maths, we calculate that the flow at 100Hz = 1250 l/sec.
Therefore 1250 will be value used for full scale reading.
The 2400-A16 calculates this Hz input the same as the normal analogue input: 0Hz = 0% and 100Hz = 100%
Select ‘Custom’.
Click on ‘Linear analog’.
Point 1 is the zero point. As the flow meter range is 0~1000Hz, at zero
flow, the Raw value and the flow meter value = 0.
Point 2 is Full Scale, which in this case is 1250l/sec. At full scale input,
the Raw value will be 100000, and the flow meter value = 1250.
Click on ‘Use’ to enter this calibration setting.
Click on ‘Save changes’.
Click on the ‘Status’ tab to see the pressure.
