Automatic Meter Reading (AMR) can speed up a tedious task of reading meters and billing tenants or it can save a property manager from having to travel to a building to manually read the meters every month. For a small installation of one or two meters, the cost of hardware and installation had significantly increase the cost of a meter reading system. For larger systems, the cost of adding AMR is greatly diminished as a percentage of the total installed price. The user must make the decision as to whether the convenience and increased accuracy of the AMR system outweighs the increased cost.
There are two primary means of accomplishing AMR. A common technology used in large installations is a pulse counting system. Since water and gas meters are also made with pulse outputs, one pulse counting system can handle everything. These are usually big facilities (100 or more meters) and everything from maintenance of the system to billing the tenants is handled by an outside service that specializes in this operation.
Meters with a serial port can be connected to a computer, either hard wired or wirelessly and read by a computer. The computer may be local or it may be connected over the internet. While the pulse meters only report kilowatt hours (kwh), the serial meters also report watts, volts, amps, hertz, power factor and phase angle. Most Davidge software only works with the serial meters.
All EZ Meters are made with either a pulse output or a serial port. See the UL page for the meters that don’t have it and why.
Our sales staff will be happy to discuss the pros and cons of both systems with you get the best fit for your needs.