Water is a precious resource, and we need to avoid the wastage of water. Then, we have to measure its usage is crucial for both fair billing and responsible consumption. Legal metrology model approval on water meters plays a vital role. This will ensure the accuracy and reliability of meters. So, for all the manufacturers is mandatory to obtain the model approval on Water Meters. 

What is Model Approval?

Model Approval is a process mandated by the Legal Metrology Act (specific regulations may vary by country). The rules are specified to verify that a measuring instrument meets the specific accuracy and performance standards. The approval ensures that manufacturers or importers can only produce or sell meters that meet these regulations.

Why is Legal Metrology Model Approval Important?

If you are a manufacturer or Importer of water meters, then understand that the Legal Metrology Model Approval is important. This will help you to build a good relationship with the customer and the trust of the consumers. The importance of Model approval on Water Meter are:-

  • Consumer Protection – The consumers are billed accurately for the water they consume. 
  • Fairness For Suppliers – This will help you to prevent disputes arising from inaccurate water meter readings.
  • Water Conservation – After Model approval, we can ensure accurate meters that encourage responsible water usage.

Why is Model Approval important on water meters?

As we all know, measuring instruments are very complex instruments, and a water meter is one of them. Even a minor variation in design or manufacturing in the meter affects their accuracy. Model approval on the water meter ensures consistent performance and eliminates the risk of faults. This will secure the reading status of the meter and faults entering the market.

List Of Categories For Which LM Model Approval Applicable

According to the technologies, the Legal metrology Model Approval applied on the various water meters such as

  1. Ultrasonic
  2. Electromagnetic 
  3. Mechanical

What Documents Are Required For The Model Approval On Water Meters?

Here is the list of the documents that are mandatory to have for the application of model approval on water meters. If you omit any of the documents, then your application will be rejected. So, collect all the mentioned documents first, then apply for the Legal Metrology Model Approval on Water Meters:-

  • Application form
  • Technical specifications of the meter model
  • Drawings and schematics
  • Test reports from accredited laboratories

What is The Process Of Water Meters Model Approval?

The process of the model approval on the water meter typically includes the application submission. You have to submit your application to the designated Legal Metrology Authority. Before approving the authority will go with the further testing and request additional information if they want.

So, to make your model approval process quick and easy, just go with the Model Approval Consultant and be free from all kinds of approval worries.

What Is The Timeline of Model Approval Legal Metrology?

The timeline of the Model Approval on the Water Meter depends on the complexity of the water meters and the workload of the authority.

So, If you don’t want to be stuck in this process, then collect all the mandatory documents, or you can consult with the experts.

What Is The Validity Of Model Approval Certificate?

The Model approval certificate is valid for a lifetime. If you are making any changes between these years, then you have to apply for the model approval again according to the changes you have made.

How Much Does The Renewal Of Model Approval Certificate Cost?

The certificate of model approval has lifetime validity, so you do need to renew it. But, if you make changes in the model, then you have to apply for it.

What If Model You Miss Any Document While Applying For Legal Metrology?

If you miss any of the documents, then it will result in a cancellation and suspension of your application. So make sure and apply for the model approval certificate on the water meter with full-fledged information as required according to the legal metrology regulations.

Why Choose ELT Corporate To Apply for Model Approval Certificate?

You can choose ELT Corporate for the free consultancy related to model approval. The approval is a long-term process, and you need to coordinate with the inspector to fill in all the omissions. But, If you go with the ELT corporate, then you do not need to connect with anyone. We will work on behalf of you and make sure to obtain a Model Approval certificate for your water meter.


Legal Metrology Model Approval on the Water Meter is mandatory to obtain. This will show that your product is following the guidelines of the Legal Metrology department and providing the best to the consumers.

FAQS (Frequently Asked Questions)

Do all water meters require Model Approval?

Yes, in most countries with a Legal Metrology framework, all water meters used for commercial billing purposes require Model Approval.

Who is responsible for obtaining Model Approval?

The manufacturer or importer of the water meter model is responsible for obtaining Model Approval.

How long does the Model Approval process take?

The timeframe can vary depending on the complexity of the meter and the workload of the authority. It typically takes a few weeks to several months.

What happens if my Model Approval certificate expires?

It’s crucial to renew the certificate before it expires. Failure to do so can result in the suspension or cancellation of manufacturing or import rights.

Can I apply for Model Approval myself?

While it’s possible, companies specializing in regulatory compliance can streamline the process and ensure a smooth application.