The problem

Flow-to-pulse calibration of water flow sensors is point-by-point manual work; pulse drift under different pressures goes unmeasured; life cycling from zero to full flow and back cannot be run by hand tens of thousands of times, and out-of-curve parts become field faults.

Capability

1 station with custom fixture; small flow 0.2-2.5L/min and large flow 1-15L/min, accuracy plus/minus 1 percent with precision electronic flowmeter; pulse frequency 5-1000Hz, accuracy plus/minus 1 percent, PLC high-speed capture with live waveform; pressure 0-0.5MPa (dynamic/static multi-point), resolution 0.001MPa, accuracy plus/minus 1 percent FS; circulating water 0-0.6MPa adjustable; water temperature 0-100C, resolution 0.1C, accuracy plus/minus 0.5C; sample supply DC0-24V adjustable (resolution 0.1V, plus/minus 2.5 percent FS); flow-pulse curve auto-plotted with settable limits and automatic OK/NG judgement; pressure points 0.1/0.2/0.3MPa auto-logged; life cycling 0L-set-0L automatic, cycles 0-999999 with memory; variable-frequency constant-pressure supply (0.6MPa) with stainless tank; automatic air-blow drying after test; PLC + colour touch screen, manual/auto modes, power-fail data retention, USB export; frame approx. 900x1300x1700mm; AC220V/50Hz with overload, short-circuit, dry-run and grounding protection.

Key specifications

• 工位配置：1工位（按客户样品定制工装夹具）；流量测试+压力测试+寿命测试一体机
• 流量测量：小流量0.2～2.5L/min、大流量1～15L/min，精度±1%；配高精度电子流量计
• 脉冲采集：流量脉冲信号频率5～1000Hz，精度±1%、分辨率1Hz；PLC高速点采集，脉冲波形实时显示
• 压力测量：0～0.5MPa（动压/静压多点可设），显示分辨率0.001MPa，精度±1%FS；循环水压力0～0.6MPa可调
• 水温测量：0～100℃，显示分辨率0.1℃，精度±0.5℃
• 样品供电：直流DC0～24V可调，显示分辨率0.1V，精度±2.5%FS（兼容各型号传感器）
• 流量-脉冲曲线：取点流量任意设定，自动绘制流量-脉冲关系曲线；判定上下限界面可设，自动OK/NG判定
• 定压工况：0.1/0.2/0.3MPa等水压点流量值、压力值与水温自动采集
• 寿命循环：流量0L→设定值→0L自动往复；周期数0～999999可设、带记忆、可累积清零；流量/压力/脉冲随时间曲线实时绘制
• 供水系统：变频恒压供水（高压立式多级泵+变频器），恒压0.6MPa；循环水设计；不锈钢储水箱

Applications

Factory performance inspection and life sampling at water flow sensor plants; incoming inspection for water-heater, water-purifier and dispenser makers; R&D flow-pulse curve calibration of hall-effect sensors; third-party sensor testing

About the manufacturer

Guangdong Endurance Electronic Equipment Co., Ltd provides non-standard customization, drawing confirmation, factory acceptance, on-site installation and commissioning, operation training and lifetime technical service; 12-month warranty and lifetime spare parts supply. Tel: 0760-88500902 / 13416787649. Web: en.zsnaili.com.