What is a portable flow meter?

PT878 Portable Ultrasonic Flowmeter (Discontinued) PT878 Flowmeter Rental.

How do you use a flow meter?

Here are the basic steps:

1. Move the marker to the bottom of the numbered scale.
2. Stand up straight.
3. Take a deep breath.
4. Hold your breath while you place the mouthpiece in your mouth, between your teeth.
5. Blow out as hard and fast as you can in a single blow.
6. Write down the number you get.

Why are flow meters useful?

Flow rate is the volume of fluid that passes through a given cross-sectional area per unit time. Accurate flow rate measurement using an appropriate flowmeter is paramount to ensuring fluid control processes run smoothly, safely and cost-effectively.

What should you check prior to using a flow meter?

One must consider the operating parameters such as temperature, line pressure, flow rate, user-friendliness, type of fluids, and accuracy requirement in the selection of a flow meter (Figure 1). Furthermore, the fluid behavior under all anticipated conditions must be known.

How do Doppler flow meters work?

Doppler flow meters use the frequency of an ultrasonic beam to determine the flow rate of a liquid. The flow meter transmits an ultrasonic signal, and the signal is reflected by the particles and bubbles, which causes the frequency of the signal to shift. This frequency shift is what is measured by the flow meter.

What is a flow meter and how does it work?

These mechanical water flow meters work by measuring the speed of flowing water running through the pipe that causes a turbine or piston to rotate. The volumetric flow rate of the water is proportional to the rotational speed of the blades.

How does a peak flow meter help a patient?

A peak flow meter is a portable, easy-to-use device that measures how well your lungs are able to expel air. By blowing a quick blast of air through a mouthpiece on one end, the peak flow meter can measure the force of air in liters per minute and give you a reading on a built-in numbered scale.

Why flow rate is important in irrigation system?

Flow rate measurement is really an essential factor for the correct design of the irrigation system, as well as for its optimal functioning; it also permits to avoid liquid dispersion or low irrigation capacity.

How is flow rate used in the food industry?

Viscosity measurements are used in the food industry to maximize production efficiency and cost effectiveness. It affects the rate at which a product travels through a pipe, how long it takes to set or dry, and the time it takes to dispense the fluid into packaging.

What are the primary considerations when selecting a flow meter to measure the flow rate of a fluid?

The media being measured is one of the most important considerations when choosing a flow meter. Conductivity, temperature, pressure, and viscosity can affect certain types of flow meters. How clean or dirty the water is may also impact the type and style of meter.

Is 300 a good peak flow reading?

Peak expiratory flow (PEF) is measured in litres per minute. Normal adult peak flow scores range between around 400 and 700 litres per minute, although scores in older women can be lower and still be normal.