This product is based on dry type remote transmission photoelectric direct reading water meter, added the valve function. With the functions of water consumption signal processing, storage, remote transmission communication and long-distance control switch valve. The meters metrological characteristics conform to the requirements of CB/T 778-2007; the electrical characteristic conformto the requirements of CJ/T 224-2006.
Features: No built-in battery, in normal times no need to add electricity Instant add electricity instant read, directly output digital signal (not pulse) , Electromechanical reading coincide, no accumulative error. The meters use the low-power design, m-bus communication modes, connection nonpolarity, construction and maintenance convenience. With high anti-light interference ability, can work normally exposed in the strong sunlight Can actively report the sensor breakdown information in order to avoid water disputes Through the control center can remote transmission control open and close the valve In order to prevent the valve stuck, the valve control meter with the valve warm-up function (timing carry on the warm-up actions)
Accuracy: From the minimum flow-rate (Q1) inclusive to the lower zone of the transitional flow-rate (Q2) exclusive:±5% Water temperature≤30℃ From the transitional flow-rate (Q2) inclusive to the higher zone of the maximum flow-rate (Q4) exclusive:±2% (hot water meter ＞30℃ ±3%)
Electrical parameters: Signaling frequency:483MHz Transmit power:15dBm Emission current:≤70mA Communication frequency:Low speed: 4 hours; High speed: 11 seconds to 30 seconds Communication distance:Low speed: ≤2500m; High-speed: ≤1000m Average operating current:≤15μA 数字远传阀控水表
