METERING

GOOD RULES of MEASUREMENT

Good rules of measurement never change. Technology might change but for proper measurement the rules as a whole have remained the same. The rules apply to meter applications as well as project applications. We can use them for gauging, blending, and any number of applications with which we get involved.

The following questions must always be asked and answered. Answers to these questions enables a more accurate and dependable selection of products or systems, that can be used in a particular application.

1. What is the product?
2. What are the product specifications?
  • a. Product temperature
  • b. Pressures
  • c. Flow rates (minimums and maximums)
  • d. Viscosity
3. For what is the meter to be used?
4. Type of pump?
  • a. PD
  • b. Centrifugal
5. What is the material of the pump and piping?
6. Do we need to control the start and stop of the pump?
7. Is a preset valve needed?
8. Largest and smallest number of digits to be preset?
9. Do we need to compensate for temperature?
10. Do we need to compensate for pressure?
11. Is a transmitter needed?
  • a. To what device are we transmitting?
  • b. Must it be explosion proof?
  • c. Type of transmitter?
12. Is allowance for high temperature required?
13. Is allowance for high viscosity required?
14. Is allowance for high volumes of air required?
15. Are there any mechanical or electrical limitations?
  • a. No electric.
  • b. No air.
  • c. No pump.
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