详情描述

DO30-3TypeAC/DC Standard Sources、Multi-use Calibrator、Multi-functional Calibration Instrument
I. Purpose and Features:
    DO30-3TypeAC/DC Standard Power SourcesThis is an intelligent AC/DC standard voltage and current calibrator (with AC output displaying true RMS value). The instrument features three display windows, capable of simultaneously showing the actual output value, percentage, and the full-scale value of the tested meter. The output of the instrument can be set based on the full-scale value of the tested meter.RangeAnd the step size can be selected according to the scale of the inspected gauge. Output adjustment is available.KeyboardSwitch control or potentiometer control. Featuring digital display, error direct reading,RangeWide range, fine gradation, high precision, good stability, and easy to use. Suitable for calibrating, inspecting, and repairing four-and-a-half-digit multi-meters, various pointer-style AC/DC voltmeters and ammeters with 0.2 and 0.5 class accuracy or below; also can be used as a high-stability test power source, paired with high-grade standard meters for calibrating 0.1 class current and voltage meters.
II. Main Functions:
1. 5 1/2-digit LED digital display for output quantity, showing both actual value and percentage simultaneously.
2. UtilizeKeyboardControl the increase and decrease of output quantity.KeyboardControl quantities are divided into 100%/N, 10%/N, 1%/N, 0.1%/N (N is 4, 5, 6, 10, 15).
   3、External Control RegulatorThe controller allows for remote adjustment of output quantity increments and decrements.KeyboardTwo configurations available, switchable at any time.
4. AC/DC voltage output range: 0 to 1050V.
5. DC and AC current output range: 0 to 60A.
6. Offers four output frequencies: 50Hz, 60Hz (59.7Hz), 400Hz, and 1000Hz, with usageCrystal OscillatorEnsure accuracy and stability of the frequency.
8. 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 flicker on the tested meter.
9. Clamp Meter Measurement: Equipped with our standard coil, capable of measuring 0-1000A current with an accuracy of ±0.3%.
Appendix:

Export ItemsOutput RangeRated OutputPeak Output
Accuracy
AC/DC Voltage0～300mV20mA100mA

Basic Error:
DC：±0.03%

AC：±0.05%

1KHz Additional Error: ±0.05% of Reading Value

Voltage Additional Error: ±0.02mV

ACI: Accuracy not assessed for ≤1mA

0～1V～3V50mA100mA
0～5V～10V～30V100mA200mA
0～50V～100V～300V50mA100mA
0～250V～500V～1000VDC:20mA
AC:40mA		DC:20mA
AC:60mA
AC and DC current0～100mA
DC:3V
AC:36V
0～1A
DC:3V
AC:12V
0～50A
1.5V
Standard Resistor10, 24, 50, 100, 240, 500 (Ω), 1, 2.4, 5, 10, 24 (kΩ), plus ×1 K, ×1 range selector (10kΩ to 24MΩ)0.25W
±(0.3%+20mΩ)

Note: (1) When the working environment temperature exceeds 23℃ ±2℃, for every 10℃ change, the additional error is less than the basic error of this range.
(2) 50A 1KHz accuracy is ±(0.15% of reading value + 0.05% of full scale)

III. Technical Performance:
1. Stability: AC < fullRange0.02%/5 minutes, DC < fullRange0.01%/5 minutes, instruments require a two-hour warm-up for precise measurements.
2. Communication Distortion: <0.5%
3. Direct Current Ripple Coefficient: <0.05% (at rated output)
4. Output Frequency Accuracy: 50Hz, 60Hz (59.7Hz), 400Hz, <0.1% (or synchronized with mains power)
5. Output voltage and currentMedian ResistanceScope and accuracy are as shown in (Appendix 1) at (23℃±2℃, output values greater than 10%)Range）

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