Month: April 2022
Flow meters with Latest CGWA Guidelines
According to the notice issued by the Authority on 08.01.2021, all the industries extracting water from ground, except exempted categories, should install flow meters meeting CGWA guidelines having Telemetry system, or they will be liable for penalty. The industries should install the meters and confirm it with the CGWA about installation within 30 days from the date of NOC issued to them.
The flow meters shall meet below specifications as per the guidelines:
The flow meter shall be either Electromagnetic flow meter of Ultrasonic meter.
The meter shall be either battery operated or power should be supplied through UPS.
The meter shall be as per ISO 4064:2014 Standards having flow range accuracy better than +2.
The meter and telemetry system should be sealed in a way that any attempt to open the system breaks the tag.
The manufacturer shall submit latest NABL / FCRI / NPL certificate for every meter.
The telemetry system shall record the flow data directly to the cloud server that is further empaneled with The Ministry of Electronics and Information Technology.
The meter shall transmit following parameters to the server
- Timestamp
- Cumulative Forward Flow
- Cumulative Backward Flow
- Cumulative Net Flow
- Cumulative Pump working Hours
- Meter serial number
- Borewell id (as per CGWA)
- Device last calibration date
Accumax flow meters meet specifications as per CGWA Guidelines:
What is CGWA?
As the world is facing shortage of natural resources due to excess and irregular consumption, the Government is stepping forward to preserve the same. There is an excessive usage of water by the industrial premises. To control the wastage and have the accurate record of consumed water, the Ministry of Jal Shakti formed Central Ground Water Authority (CGWA) under Environmental Protection Act.
The functions of the CGWA statutory body are to issue NOC to various industrial and mining projects for extracting the water from the ground in prior. It states the technical specifications for water meter based on the consumption of industry.
Accumax offers Digital water flow meter as per CGWA guidelines:
Design of Magnetic Flow Meter
The design of the magnetic flow meter is such that the area having direct contact with the water withstands the corrosion. The inside body is made up of polytetrafluoroethylene (PTFE) liner and Stainless Steel electrodes. The straight structured flow design increases the accuracy of the flow measurement and identifies the pressure drop in the same. It is used to measure liquids like water, wastewater, slurries, and other corrosive liquids. The conductivity of the liquid should be equal to or more than 10 micro siemens/cm. The advanced flow meter can measure the flow of liquid from both directions – forward and backward. The low flow range will show less accuracy in large-sized flow meters compared to a small-sized flow meter. Generally, the accuracy remains at 0.5% of full scale.
