Omron K3HB-C User Manual page 74

■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
D = 100
fa + fb
fa: Frequency A (Hz)
: Prescale value A
D: Flow rate ratio (%)
* When fa x fb x
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 ( ) = 10/400 = 0.025 = 2.5000 × 10
Prescale value of Input B ( ) = 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)
: Prescale value B
, 0 will be displayed.
2
2
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