光伏板 + 光功率测试仪
PV panel + solar power tester
产品用途（说明书）
What it does (manual)
- 测最大发电功率：同一光强下 MPPT 点越大，光伏板质量越好；看 IV/PV 曲线形状还能发现组件损坏
- 确定最佳发电电压：最大功率点对应的 Vmax 即当前最佳发电电压，用于搭配电池
- 推算标定功率：结合太阳光强建立发电模型，推测 1000W/m² 标准光强下的理论功率，接近厂家标定值
- Peak power: a higher MPPT point under the same irradiance means a better panel; curve shape also reveals damaged cells
- Best operating voltage: Vmax at the MPPT point tells you which battery voltage to pair
- STC estimate: builds an irradiance-power model to predict output at 1000W/m², close to the nameplate rating
机身与配件
Unit and accessories
出厂配件：主机 ×1、开尔文夹子连接线 ×1、MC4 连接端子 ×1、光功率传感器 ×1、用户手册 ×1、充电线 ×1。
In the box: main unit, Kelvin clip leads, MC4 connector leads, irradiance sensor, user manual and charging cable.
机内五个数据页
Five on-device pages
- 页面 1：Pmax、Vmax、Imax、短路电流与瞬间光强为测量瞬间锁存；开路电压、太阳光强与温度持续刷新
- 页面 2：一次扫描约 300 个点，均匀抽取部分显示，红色字体为最大功率点
- 页面 3：横坐标电压，蓝色为电流曲线、红色为功率曲线；曲线形状明显异常说明发电不均匀或有组件损坏
- 页面 4：最多记录 14 组数据，Max 为其中发电功率最高值，红色为最新一次
- 页面 5：拟合光强—发电功率模型，按默认 8% 温度损失补偿后推算 PV_STC_POWER
- Page 1: Pmax, Vmax, Imax, short-circuit current and irradiance are latched at the moment of measurement; open-circuit voltage, irradiance and temperature keep refreshing
- Page 2: each sweep collects around 300 points; an even subset is listed, with the MPPT point in red
- Page 3: voltage on the X axis, current in blue and power in red; a badly distorted shape means uneven generation or damaged cells
- Page 4: up to 14 records; Max marks the highest power and red marks the newest reading
- Page 5: fits the irradiance-power model and applies the default 8% temperature loss to estimate PV_STC_POWER
四步测量流程
Four-step workflow
- 用连接线接光伏板正负极，接入光传感器，使其与光伏板保持水平且正对太阳
- 清除历史数据：短按「开机」1 次，等待 1 秒后再短按 1 次
- 按「启动」，数秒后得到一组数据；等太阳光强变化后重复多次，光强跨度越大推测越准
- 翻阅页面 1~5 查看结果，先看页面 3 与页面 5 的图表最容易理解
- Connect the leads to the panel and attach the sensor, keeping it coplanar with the panel and facing the sun
- Clear history: short-press power once, wait a second, then short-press again
- Press start for a reading; repeat as irradiance changes — a wider spread gives a better estimate
- Review pages 1~5; the charts on pages 3 and 5 are the easiest starting point
测量项目与量程（说明书摘录）
Measurements (manual)
| Pmax | 0~800W，±0.5% — 当前光强下最大发电功率Peak power at current irradiance |
|---|---|
| Vmax | 0~60V，±0.1% |
| Imax | 0~35A，±0.1% |
| Vopen | 0~60V，±0.1% — 开路电压Open-circuit voltage |
| Ishort | 0~35A，±0.1% — 短路电流Short-circuit current |
| 内部温度Internal temp. | 0~60°C，±3% — 过温需自然冷却Cool after alarm |
另有 Solar_Power 太阳光功率 0~1000W/m²（±5%）与 PV_STC_Pm 推测功率 0~2000W（±5%）。供电为内置聚合物电池，充电 DC 5V / 500mA，机身尺寸 175×80×28mm。
Also Solar_Power 0~1000W/m² (±5%) and the estimated PV_STC_Pm 0~2000W (±5%). Built-in polymer battery, DC 5V / 500mA charging, 175×80×28mm.
注意事项
Important notes
- 不能测量大于 800W 的光伏板，否则会烧坏设备
- 被测光伏板不能同时连接控制器等其他设备
- 过温报警后需自然冷却才能继续使用
- 需在太阳下测试，并利用光强变化采集不同光强的发电功率
- 测试过程中光传感器必须与光伏板保持水平
- 光传感器需妥善保护，不用时请关闭滑盖
- 操作时避免接触裸露的电线和连接器，注意光伏板正负极连接正确
- 定期清洁外壳，避免液体或异物进入；整机保修一年
- Do not test panels above 800W — it will damage the instrument
- Disconnect controllers or other devices from the panel under test
- After an over-temperature alarm, let the unit cool naturally
- Test in sunlight and capture readings as irradiance changes
- Keep the irradiance sensor coplanar with the panel throughout
- Protect the sensor and close its slide cover when not in use
- Avoid bare wires and connectors; always check panel polarity
- Clean the housing regularly and keep liquids out; one-year warranty
手动模式（长按「启动」进入）仅用于 100W 以下小功率光伏板调试，一般情况下自动模式更准确。仪器支持通过 USB 串口导出测量数据。
Manual mode (hold start) is only for panels under 100W during bench work; automatic mode is more accurate. Measurement data can be exported over the USB serial port.