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■F5: Flow Rate Ratio
Monitoring Liquid Mixture Flow Rate Ratio
Operation Configuration (Application)
• Basic Operation
The flow rate ratio (%) of input B is displayed on the basis of the
frequency of input A and the frequency of input B.
The measurement value can be obtained using the following
formula:
fb × β
× 100
D =
fa × α + fb × β
fa: Frequency A (Hz)
α: Prescale value A
D: Flow rate ratio (%)
* When fa x α + fb x β = 0, 0 will be displayed.
Example:
This example shows the prescale values and the prescale set
values for measuring the flow rate ratio from flow rates (l/min)
using two flow meters (10 l/400 rpm).
Prescale value of Input A (α) = 10/400 = 0.025 = 2.5000 × 10
Prescale value of Input B (β) = 10/400 = 0.025 = 2.5000 × 10
Prescale value of Input A, X (mantissa): ps. ax = 2. 5000
Prescale value of Input A, Y (exponent): ps. ay = 10 -2
Prescale value of Input B, X (mantissa): ps. bx = 2. 5000
Prescale value of Input B, Y (exponent): ps. by = 10 -2
5.1 Setting the Function for the K3HB-R
Linear output
fb: Frequency B (Hz)
β: Prescale value B
−2
−2
5-13
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