I. Usage and Features:
XF30A-1 ModelMulti-functional Calibration InstrumentIt is an intelligent AC and DC voltage and current calibration meter. (The AC output displays true RMS value.) The three windows simultaneously display the actual output value, percentage, and the full-scale value of the meter under test. The full-scale value of the meter under test can be set, and the corresponding step size can be selected according to the scale of the meter under test. Amplitude adjustment options are available.KeyboardButton control or potentiometer control. Features digital display, error direct reading,RangeWide range, fine gradation, high precision, excellent stability, easy to use, and convenient for carrying. Suitable for calibrating, verifying, and repairing four-and-a-half-digit multimeters, various 0.2 and 0.5 class below analog AC and DC voltmeters and ammeters; also can be used as a high-stability test power supply, paired with high-grade standard meters for calibrating 0.1 class current and voltage meters.
II. Main Functions:
1： 5¹/₂The LED digital display outputs in both actual value and percentage formats simultaneously.
2: UtilizeKeyboardPotentiometer controls the increase or decrease of output quantity.KeyboardControl quantities are 100%/N, 10%/N, 1%/N, 0.1%/N (N stands for 4, 5, 6, 10, 15).
3： External Control RegulatorThe regulator allows for off-line control of output quantity adjustments.KeyboardTwo configurations available, switchable at will.
4: Output voltage range for AC and DC is 0 to 1050V.
5: The DC and AC current output range is 0 to 31.5A.
6: Four selectable frequencies are available: 50Hz, 60Hz (59.7Hz), 400Hz, and 1kHz (using)Crystal OscillatorGuarantee frequency stability.
Overload protection with automatic shutdown and manual reset.
8: The 50Hz output can also be synchronized with the local power supply to minimize the impact of the beat frequency on the meter being tested.
III. Technical Performance:
1: Stability: AC < FullRange0.02% / 5 minutes
DC < FullRange0.01% / 5 minutes
2: Distortion in Communication: < 0.5%
3: DC Ripple Factor: < 0.05% (at rated output)
Output Frequency Accuracy: 50Hz, 60Hz (59.7Hz), 400Hz, 1kHz < 0.1% (or sync with mains power)
5: Output voltage, current range, and accuracy (at 23℃±2℃, output value greater than 10%)Range）

Power Consumption: AC voltage 220V±10%, frequency 50Hz±1Hz; power consumption < 230VA
7: Working Environment: Temperature of working environment 5℃ to 35℃, relative humidity <80%
8: Office Hours: Continuous
Product Dimensions: 139×480×420mm³
Weight: < 22kg