CHAPTER 1INTRODUCTION TO FLOW METERS
FLOW METER DISPLAYS

Newer flow meters sometimes include built-in indicators. This is because it is extremely difficult to make accurate settings without a numerical display. Flow within piping can be determined by physical elements such as pipe diameter, the pressure that creates the liquid flow, and the viscosity of the liquid. However, if actually questioned as to how much flow is in the pipe, there is no simple way to know the precise amount. Even if attempting to issue a precise low limit alarm using a flow meter without an indicator, "gauging" must be performed using the procedures below.

MEASURE NORMAL FLOW	1. Install a flow meter and valve. 2. Ensure normal flow and begin running the water. 3. Try to accumulate the flowing water for a fixed period of time. 4. Find instantaneous flow from the weight or volume of the accumulated water.

PERFORM ALARM SETTINGS	1. Run the water and tighten the valve. Then create a pseudo lower limit alarm level. 2. Measure the water after accumulating it in a container. Then confirm if you have found the instantaneous flow of the lower limit alarm. 3. Once done, perform settings for the flow meter so that it will emit real signals.