How does a combination water meter work?

Asked by: Ken Miller

How It Works. Compound meters combine positive displacement and turbine measuring technologies to capture accurate measurements in applications that experience rapid and wide fluctuations in water demands. Water flows directly into the single compound meter housing.

What is a combo water meter?

Combination water meters comprises of a bulk Woltmann insert and a low-flow Volumetric insert or meter, flow is diverted between them by a by-pass valve that is set at a predetermined flow rate. This allows the combination meter to have a very large measurement range.

How do you read a compound water meter?

For billing purposes, with compound meters, two sets of meter readings are taken – a larger meter for the high flows (the “high side”) and another, smaller meter, for the low flows (the “low side”). The usages are then added together and the customer is billed for the combined usage.

How does a multi jet water meter work?

Multi-jet meters use multiple ports surrounding an internal chamber to create multiple jets of water against an impeller. The impeller rotation speed depends on the velocity of the water flow. If your water is flowing downward it will not rotate the impeller as it does in a horizontal pipe or in a up flow condition.

What are the two types of water meters?

There are two conventional measuring devices for water flow measurement, the positive displacement water meter, and the velocity meter. Less common options include non-mechanical designs of electromagnetic and ultrasonic meters and electromechanical meters.

What is a compound meter used for?

Compound meters combine positive displacement and turbine measuring technologies to capture accurate measurements in applications that experience rapid and wide fluctuations in water demands. Water flows directly into the single compound meter housing.

What is bypass water meter?

A water meter bypass is a connection made prior to the meter that redirects the flow of water around the meter and back into domestic plumbing. View the Water meter by-pass drawing (PDF).

How many gallons per minute do I need for my home?

The average household needs 100 to 120 gallons per person per day, and a flow rate of about 6 to 12 gallons per minute.

What is a compound meter?

Compound Meters are meters in which the beat divides into three, and then further subdivides into six. Duple Meters have groupings of two beats, Triple Meters have groupings of three beats, and Quadruple Meters have groupings of four beats.

How do you compute the amount of water consumption in a month?

To determine your dollar amount of water consumption, multiply the units used by your current water rate.

What is the most accurate water meter?

Ultrasonic water meters are typically very accurate, with residential meters capable of measuring down to 0.01 gallons or 0.001 cubic feet. In addition, they have wide flow measurement ranges, require little maintenance and have long lifespans due to the lack of internal mechanical components to wear out.

What is the most common type of water meter used in residential water metering?

Displacement Water Meters

Displacement Water Meters
A displacement water meter is the variant most commonly used in residential applications as well as certain small commercial operations.

Are there different types of water meters?

Water meters of different types are available in the market – Positive Displacement, Electromagnetic, Ultrasonic, Single and Multi-jet and Turbine flow meters. Let us look at the differences in their principles of operation and their advantages and disadvantages.

What is smart water meter?

The smart water metering enables the utilities to automatically collect consumption data, eliminate manual meter reading, improve efficiency and save costs. It also provides an opportunity to detect leaks and abnormal consumption more efficiently than the manual methods.

Are water meters accurate?

The American Water Works Association (AWWA) requires meters to be within 98.5 percent and 101.5 percent accuracy to be usable. This means they only allow for an error rate of 1.5 percent. After the first 2,000 gallons, your water bills are charged per 1,000 gallons.