Page 25 - Sleer - Rev 1.98

multifunction meter with

simultaneous connection

to power, water and gas

system

application

The technical field of this invention relates to building energy management and control system.
The power, water and gas meters are integral parts of all buildings. Usually, a meter is installed for each
power branch, which may occupies huge space in large buildings. On the other hand, intelligent and
comprehensive control and management of all branches, such as water, gas and electricity may is not
cost-effective. In this invention, intelligent control and management of water, gas and power branches
are undertaken in a single unit. This can improve the quality of intelligent control and management sys-
tem while making installation and maintenance processes cost-effective. Also, in the case of a power
meter, this invention uses an integrated single unit to control the consumption of several electricity
subscribers, which saves a lot of space, cost and enhances the quality of the control and management of
the building’s electricity consumption.

The issues arisen in pre-production phase are related to meter body design, the power part, the elec-
tronic part, and connection with the control center.
There are also other problems while using current meters, as the difficulty of installing and occupying
huge space on the wall and purchasing industrial accessories that should be prepared and installed.
As for power meter, each meter must be made in single-phase or three-phase manner and be utilized
and a single-phase meter cannot be used for three-phase electricity and vice versa.
In the present available power meters, a power fuse is used permanently.
As a result, the meter, although designed to 100 amps, indeed can utilize at least 15% to 50% of its power.

Regarding water meters, corrosion or scaling are other issues that will occur unavoidably.

24 SLEER www.sleer.nl 25