JLJ-1 Galvanometer Calibration Instrument
Flux Technology (Nantong) Co., Ltd. JLJ-1 Galvanometer Calibration Instrument, suitable for the calibration, verification, and repair of light-spot galvanometers.
II. Technical Specifications
1. Operating Environment: Temperature 20℃±2℃, relative humidity 25%–75%, in a dust-free and non-corrosive gas environment. Power supply voltage 220V±10%, 50Hz±5%.
2. Technical Performance of Constant Current Source Section:
⑴ Constant current source output from 1–10mA, with coarse, medium, and fine adjustments.
⑵ Built-in three resistors: 0.1Ω, 1Ω, and 10Ω.
⑶ Ammeter accuracy: <0.1%.
⑷ Six-range resistance box (0.1%) 0.1Ω–100kΩ.
⑸ Current stability (10min):  <0.05%
⑹ Timing stopwatch (0–99 seconds)