本站客户服务
仪表网官微
仪表APP
仪表手机版
仪表小程序
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
主要功能与特点:
1.无内置电池,平时无需加电;
2.即时加电即时读取,直接输出数字信号(非脉冲),机电读数吻合,无累积误差;
3.表具采用低功耗设计,M-BUS通讯方式,连线无极性,施工和维护方便;
4.具有高强抗光扰能力,暴露在强光下可以正常工作;
5.能够主动上报传感器故障信息,避免用水纠纷;
6.通过控制中心,可以对阀门进行远程开、关控制;
7.为防止阀门卡死,阀控表具体阀门热身功能(定时进行热身动作);
电气参数:
信号频率:483 mhz
传播的力量:15 dbm
发射电流:≤70 ma
通讯频率:低速:4小时;高速度:
11秒到30秒
通讯距离:低速:≤2500m;高速:≤1000米
平均工作电流:≤15μa
