◆ DC UPS, UPS exchange of high-efficient than 2 times.
◆ buffer period: 96 hours
◆ communications medium: wired, wireless, GPRS
◆ main power brown-out monitoring
◆ stainless steel sheet or spray me
● wireless communications traffic data collection, simple and reliable.
● communication radius: 5 km (10W); 10km (20 W)
● also can be wired communications or mobile communication.
● digital communications method of data collection, not loss of measurement accuracy.
● DC UPS power supply, high efficiency. A time as long as 72 hours.
● main power brown-out monitor, can effectively prevent cheating.
● maintenance-free batteries. Current limit pressure limiting charging and discharge protection and greatly extend battery life.
● water-table me.
● steam for measuring the flow of data collection points:
● overheated state of saturation with automatic judgement and density functional look-up table;
● steam temperature and pressure compensation;
● Reynolds number correction function;
● expansion coefficient can be ε compensation;
● steam and humidity compensation;
● steam heat measurement function;
● minimum flow accounting functions;
● ultra-billing scheme consumption function;
●-time billing functions;
● off the record;
● no paper record.