DO3020W multimeter calibration device

DO3020W multimeter calibration device, multimeter calibrator, multifunctional calibrator, three meter calibrator
summary:
The DO3020W multimeter calibration device is the latest high-tech product, mainly used for testing and calibration of AC/DC voltmeters, AC/DC ammeters, ohmmeters, and multimeters. It adopts digital feedback control technology and large screen LCD display, combined with window technology to design screen menu management function. The whole machine has advanced technology, complete functions, compact structure, and reliable performance. It is widely used as a standard in power, railway, metering, industrial and mining enterprises, and research institutes. It can also be used as a stable AC/DC voltage source and a stable AC/DC current source.
Key Features:
1. Multi functional, high accuracy, high power, with AC/DC voltage, AC/DC current, resistance, and square wave frequency output, can be widely used for verifying analog indicators and digital instruments.
2. The output voltage and current are both soft start, and the output value can be set with digital keys. The output value can be adjusted bit by bit using a rotary encoder, with continuous steps and full and reset functions, making it easy to use.
3. Six digit output adjustment of AC/DC voltage, AC/DC current, and square wave frequency, with a fineness of 10-6 of the measurement range.
4. It has the function of automatic protection against overcurrent and overvoltage, and automatic reset.
5. 320 × 240 LCD large screen display, Chinese character menu, function input prompts, can simultaneously display output status, output value, relative error, absolute error, and corresponding range.
6. Equipped with external calibration function, it can maintain the accuracy after calibration.
7. Equipped with RS232 interface, it can be connected to a computer to form an automatic testing system (optional), which can perform various management tasks such as verification data processing, certificate printing, and file management.
Main technical indicators:
1. Output AC/DC voltage range: 10mV-1000V, divided into ten ranges: 1000V, 600V, 300V, 100V, 30V, 10V, 3V, 1.5V, 200mV, and 75mV.
2. Output DC current range: 2 μ A-22A, divided into ten ranges: 20A, 5A, 2A, 500mA, 200mA, 50mA, 10mA, 2mA, 200 μ A, and 20 μ A.
3. Output AC current range: 2mA-22A, divided into 20A, 5A, 2A, 500mA, 200mA, 50mA, 10mA, seven ranges.
4. Output AC/DC voltage and current adjustment range: better than 1 × 10-5 of full range, each range can be adjusted between 10-110% (1000V range adjustment range is 10-100%), six digit number can be adjusted bit by bit, continuous step.
5. The frequency range for outputting AC voltage and current is: 40Hz-65Hz, 400Hz point frequency synchronized with 50Hz power frequency, with a frequency adjustment fineness of 0.001Hz for 40Hz-65Hz.
6. Accuracy of output DC voltage: The range of 1000V-1.5V is ± 0.05% RG, and the ranges of 200mV and 75mV are ± 0.1% RG ± 0.5mV.
7. Accuracy of output AC voltage: The range of 1000V-1.5V is ± 0.05% RG, and the ranges of 200mV and 75mV are ± 0.2% RG ± 2mV.
8. Accuracy of output DC current: The range of 20A-2mA is ± 0.05% RG, and the range of 200 μ A and 20 μ A is ± 0.1% RG ± 0.5 μ A.
9. Accuracy of output AC current: 20A-10mA with a range of ± 0.05% RG.
10. Accuracy of communication frequency: ± 0.05%.
11. The impact of AC voltage and current frequency difference results in an additional accuracy of 0.03% RG and an additional accuracy of 0.1% RG for 400Hz.
12. The output AC distortion is less than 3%.
13. The output DC ripple is less than 3%.
14. Output resistance values: 10 Ω, 25 Ω, 50 Ω, 100 Ω, 150 Ω, 200 Ω, 250 Ω, 500 Ω, 1 K，1.5K，2K，2.5K，5K，10K，15K，20K，25K，50K，100K，150K，200K，250K，500K，1M，1.5M，2M，2.5M，5M，10M。 The accuracy is ± 0.05% ± 200m Ω, and the rated power is 0.5W.
15. Rated output power of AC/DC voltage: The range of 1000V-30V is 20W, and the maximum output current for 10V, 3V, and 2V ranges is 100mA. The maximum output current for 200mV and 75mV ranges is 20mA.
16. Rated output power of AC/DC current: 20A-2A range is 20W, and the maximum output voltage for other ranges is 10V.
17. Power supply 220V (± 10%), frequency 50Hz (± 10%), maximum power consumption 120VA.
18. Usage environment: Temperature of 20 ± 5 ℃, relative humidity of 80%, no direct sunlight, no electromagnetic interference.
Software Description (Optional):
1. Through the RS232 interface, the computer can be fully programmable. The monitor of the multifunctional computer has a simulated display of the calibrator, and the functions and outputs of the calibrator can be adjusted by clicking the mouse or shortcut keys.
2. You can input (or select from the menu) basic parameters such as the name and number of the inspected table, accuracy level, manufacturer, inspection unit, range, division value, and number of calibration grids.
3. Based on the above data, semi-automatic calibration can perform parameters such as automatic positioning, rising, falling, etc., automatically store the calibration results, and form a record of the original calibration data.
4. Automatically perform data processing, error calculation, and rounding, and determine whether the instrument is qualified based on the input level. A calibration certificate will be issued for qualified instruments (a test result notification will be issued for instruments without calibration regulations), and a calibration result notification will be issued for unqualified instruments.
5. Automatically archive the above certificates and print them at any time.
6. The instruments used for calibration can be classified and statistically analyzed, and monthly and annual reports can be generated.
7. Windows operating interface.