This document is the user manual for the Hotspot I product, providing safety precautions and operation instructions.
This manual describes the Hotspot I capacitive discharge welder, a device that generates an electric arc to fuse thermocouple wires to metal bases. It explains how the unit can be powered from AC through a step‑down transformer or from an internal gel‑type storage battery that recharges automatically.
The guide covers safety precautions, detailed operating procedures, energy‑setting adjustments for different wire gauges, and a variety of welding techniques—including free‑standing junctions, spot welding, and welding to difficult materials such as aluminum or copper. It also addresses maintenance, charging indicators, and troubleshooting tips. This manual is written in Chinese.
| Energy setting for #30 wire pairs | 20 Watt·seconds |
|---|---|
| Energy setting for #26 wire pairs | 30 Watt·seconds |
| Peak welding current | several thousand amperes |
| Internal voltage limiter | 80 V |
Use the calibrated dial: #30 wire pairs at 20 Ws, #26 at 30 Ws, #24 at 40 Ws, and #20 or #16 wires at full power.