AW Gear Meters EMO-500 - Manual (Page 25)

EMO-500
Operation and Programming Manual
24
F6
The F6 key calls up Global Programming.
Global Default Values
1. KFR for A ----------- 100.0
2. KFT for A ----------- 10000
3. KFR for B ----------- 100.0
4. KFT for B ----------- 10000
5. Units for Rate ----------- 12 Hz
6. Units for Total ----------- 08 impulses
7. Sample Size ----------- 200 impulses
8. Gate Time ----------- 1.85 seconds
9. Analog Offset ----------- 0000
10. Analog Gain ----------- 10200
11. Analog Rule ----------- 06 Ratio
12. Unit Number ----------- 01
Explanation of Global Variables
1. KFR for A (Default 100.0)
In order to display the correct rate in an engineering unit such
as GPM, the EMO-500 must calculate a scaling factor. This Rate
Scaling Factor is called the KFR. The EMO-500 uses the K-factor
of the flow transmitter being monitored to calculate the KFR.
The K-factor is the number of impulses per engineering unit
established by a calibration test.
For example, a flow meter could have a K-factor of 6304
imp/Gal. To calculate the KFR multiplier for the EMO-500, apply
the following formula: