青岛清方华瑞电气自动化有限公司（青岛清方数码科技有限公司）是瑞士瑞特迈尔 (rittmeyer Ltd) 公司和德国尼沃斯（ Nivus GmbH ）公司在中国的独家代理和技术服务中心；公司先后承担过南水北调、引黄入晋、引滦入津、三峡等二十多个大中型水利、水电工程的水力量测系统的供货、技术服务工作。
主要产品：
• 瑞特迈尔超声波流量计 RISONIC2000
主要特点：
• 高精度：± 0.5% （绝对精度，不需要率定）
• 大管径：管道最大直径可达 14 米，明渠渠宽可达 70 米
• 宽适应：钢管、砼管、方涵、明渠（梯形渠、矩形渠）等各种异型断面
• 宽温型： -30 ℃ ~ +70 ℃
• 多功能：满管、非满管、时满时不满管都能测
2 、瑞特迈尔吹气式水位计 W2Q ：
主要特点：
- 高精度： 0.015% （绝对精度）
• 宽量程： 0~200 米
• 强适应：污水、有腐蚀性的液体、泥沙含量高的液体
3 、瑞特迈尔角度传感器 MGxx ： 0.022 度的高精度
4 、德国 NIVUS Puls 流量计：
• 高精度：± 0.5% （绝对精度，不需要率定）
• 安装简单：仅需一个传感器，开孔安装。
• 低价位。
Qingdao QFHR Electric Automation Co., Ltd (Qingdao Qingfang Digital Technology Co., Ltd) is the sole agent and technical service center of rittmeyer Ltd (Switzerland) and Nivus GmbH (Germany) in China. We've participated in more than 20 large & middle-scaled hydro-related and hydropower projects such as South Water Diversion Project (to the North), Yellow River Diversion Project, Luanhe River Diversion Project (to Tianjin) and Three Gorges etc., supplying water measurement system and technical service.
Main products:
• rittmeyer Ultrasonic Flowmeter RISONIC2000
Features:
• high accuracy: ± 5% (absolute accuracy, no need for calibration)
• big pipe and wide channel: max pipe diameter is 14m, max. channel width is 70m
• adaption : steel & concrete pipe, open channel (trapezium & rectangle) and all kinds of irregular sections
• temperature range: -30 ℃ ~ +70 ℃
• multifunction: full pipe, partially-filled pipe, and unstable partially & fully-filled pipe (sometimes full, sometimes not) can be measured
• rittmeyer Pneumatic Water Level Meter W2Q :
Features:
• high accuracy: ± 0.015% (absolute accuracy)
• measuring range: 0~200m
• adaption: sewage water, corrosive liquids and liquids with high concentration of sand and sludge
• rittmeyer Angle Transmitter MGxx : with high accuracy of 0.022 o
• Nivus Puls Flowmeter:
Features:
• high accuracy: ± 0.5% (absolute accuracy, no need for calibration)
• easy installation: only one transducer is needed, drill hole on the pipe
• low costs