关闭测试开关Switch OFF
接线或安装灯具前，确认测试开关处于“关”。
Before wiring or fitting a lamp, make sure the test switch is OFF.
PLT04 Support
PLT04 售后支持与使用指南 PLT04 Support & User Guide
PLT04 四表试灯盒的说明书、快速操作、参数解读、保险丝更换与常见故障排查。本页内容仅适用于 PLT04。
Manuals, quick operation, meter readings, fuse replacement and troubleshooting for the PLT04 four-meter test box only.
Manuals
PLT04 说明书下载PLT04 Manuals
下载当前有效的 PLT04 中英文说明书。产品参数与安全要求以随机说明书和机身标识为准。
Download the current PLT04 manuals. Follow the shipped manual and product markings for specifications and safety.
Quick start
快速使用Quick Operation
接入被测品Connect the load
将被测品接到 E14、E27 或交流负载线夹；建议同一时间只使用一路。
Connect to E14, E27 or the AC load clips. Use one output path at a time.
通电读取四表Power and read
把开关拨到“开”，读取交流电压、电流、有功功率和功率因数。
Switch ON and read AC voltage, current, active power and power factor.
关闭后取下Switch OFF before removal
测试完成后先关闭开关，再取下灯具或拆除线夹。
After testing, switch OFF before removing the lamp or clips.
Readings
四表读数代表什么Understanding the Four Readings
交流电压AC voltage
确认被测品实际得到的供电电压是否正常。
Confirms the AC supply reaching the product under test.
交流电流AC current
用于观察负载大小与异常电流，量程 0～2A，勿长时间超载。
Shows load current and abnormal draw. Range: 0–2A; avoid prolonged overload.
有功功率Active power
表示真正耗电功率，可用于核对产品是否接近标称功率。
Shows real power consumption for comparison with the rated wattage.
功率因数Power factor
越接近 1 通常越好，具体要求以目标市场现行标准为准。
A value closer to 1 is generally better; follow current target-market requirements.
Troubleshooting
常见故障排查Common Troubleshooting
打开开关后整机不亮No display after switching on
先断电检查保险丝。只能更换同规格 5×12 mm / 5A 保险丝，并拧紧座盖。
Disconnect power and check the fuse. Replace only with a 5×12 mm / 5A fuse and tighten the cap.
通电不良或接触不稳Unstable power or contact
保险丝多次烧断后，保险丝座触点可能烧蚀，应更换整个保险丝座。
Repeated fuse failures may damage the holder contacts. Replace the complete fuse holder.
有电压但灯不亮Voltage present but lamp is off
检查灯头是否拧紧、灯具是否损坏，以及线夹是否夹牢。
Check that the lamp is seated, the lamp is functional, and the clips are secure.
功率读数缓慢下降Power slowly decreases
多由灯具升温后真实功率下降造成，通常不是 PLT04 故障。
This often reflects the lamp's real power falling as it heats, rather than a PLT04 fault.
Safety
安全注意Safety Notes
输出端为交流市电Outputs carry AC mains
测试开关处于“开”时，E14、E27 灯座和交流负载线夹均可能带电，禁止触碰金属接触点。
When the switch is ON, E14, E27 and AC clips may be live. Never touch metal contacts.
所有接线必须断电操作Power off before handling
接线、取灯、换保险丝或维修前，先关闭开关并断开输入电源。
Switch off and disconnect input power before wiring, removing lamps, replacing the fuse or servicing.
Product
返回 PLT04 产品页Back to PLT04
查看产品参数、接口与现场图片。
See product specifications, interfaces and photos.
打开产品页Open product page