Six manual steps per instant water heater? 2-station inline bench chains pressure, safety, flow and thermostatic tests automatically

The problem

Production line testing of instant water heaters needs pressure, safety, flow and thermostatic checks in sequence; manual valve switching is slow and unstable voltage ruins data. The NL-JRS chains all steps automatically with pass/fail lamps.

Capability

Test sequence: water pressure (0-1.8MPa, 0-60s) -> safety (ground/hi-pot/leakage per 3C/CE/ETL) -> startup flow (1-3.5L/min) -> full-power (5-15L/min) -> thermostatic (+/-2C) -> drying (0-1.0MPa air); dual water supply: low-flow 1-3L/min + regulated high-flow 4-11L/min (0.6-0.8MPa, 0.05MPa accuracy), total >30L/min; AC220-260V/50Hz (+/-2%), 0-30A (0.1A), 0-5kW per station; water temp 0-100C (0.2C); 2 stations time-share one safety analyzer; G1/2 pneumatic fixtures; PLC + touch screen; stainless frame.

Standards

GB 4706.1《家用和类似用途电器的安全 通用要求》；IEC 60335-1、UL 60335-1 电气安全通用标准测试要求；GB 4706.12 储水式热水器特殊要求；快热式热水器常规性能测试工况

Key specifications

• 测试工位：2工位立式壁挂，每工位长500mm；机架1200×800×1800mm；可自动/手动、按工位勾选流程
• 测试流程：水压→安规（耐压/接地/泄漏）→启动流量→全功率→恒温→吹水，自动连贯完成
• 水压测试：0～1.8MPa可调，测试时间0～60s可设
• 安规测试：接地电阻/交流耐压/泄漏电流，参数按3C/CE/ETL认证要求设定；两工位错时共用一台安规仪
• 启动流量：1～3.5L/min（断水保护与启动流量1～4L可调，0～60s）；全功率测试5～15L/min
• 恒温测试：恒温误差±2℃；开始检查时间与温度误差上下限可设（0～1min）
• 双路供水：低压流量路1～3L/min + 高压稳压路4～11L/min（0.6～0.8MPa、精度0.05MPa）；总流量>30L/min
• 增压稳压：水循环+增压稳压系统0～1.2MPa；每工位2个精密调压阀+球阀，1～11L/min手动预设
• 电参数：工作电压AC220～260V/50Hz（±2%）；单工位电流0～30A（0.1A）；功率0～5kW（0.01kW）；电参数表300V/100A
• 温度测量：进出水温0～100℃、精度0.2℃；每工位配出水温度仪

Applications

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.