China Rek RK9930 / RK9930A/ RK9930B/RK9930C PROGRAMMABLE GROUND RESISTANCE TESTER
RK9930 GROUND RESISTANCE TESTER
The AC Programmable Grounding Resistance Tester Is Displayed On A 5-Inch TFT LCD. The Output Current Adopts Hardware Feedback And High-Speed ARM MCU Control Technology To Make The Output Current Stable And Reliable. The Output Current Is Driven By DDS + Linear Power Amplifier. The Output Waveform Is Pure And The Distortion Is Small. The Tester Is Controlled By Single-Chip Microcomputer, Which Makes Its Setting And Operation Very Simple, And Provides PLC Remote Control Interface, RS232C, RS485, USB And Other Interfaces, Which Can Facilitate Users To Quickly Combine Into A Comprehensive Test System.
Application Area
Application Area
The Tester Can Be Used To Test The Grounding Resistance Of Household Appliances, Electronic Instruments, Electronic Equipment, Electric Tools, Electric Heating Appliances And Other Products.
Performance Characteristics
1. The Display Parameters Are Eye-Catching And Intuitive. DDS Digital Signal Synthesis Technology Is Used To Produce Stable, Pure And Low Distortion Waveform
2. Constant Current Output: The Output Current Stability Rate Range Is Within 1%, To Avoid The Output Current Change Due To Input Current Voltage Instability And Load Change.
3. It Has Open Circuit Alarm Function. The Maximum Test Time Is 999.9s.
4. Four Terminal Method Is Used To Eliminate The Influence Of Contact Resistance.
5. The Output Frequency Is 50 Hz / 60 Hz. It Has Alarm Function Of Upper And Lower Limit Of Resistance.
6. Chinese And English Bilingual Operation Interface, To Meet The Needs Of Different Users, Support Large Capacity Storage, Adapt To Different Test Application Requirements
| model | RK9930 | RK9930A | RK9930B | RK9930C | |
| Screen Size | 5-inch TFT LCD screen | ||||
| Number Keys | Parameter setting digital input | ||||
| Encoding Switch | Parameter selection and confirmation function | ||||
| Up/Down/Left/Right Function Keys | Parameter setting up/down selection function | ||||
| LOCK Keyboard | Prevent accidental modification of test conditions or prevent modification of test conditions | ||||
| Lock Function | |||||
| Alarm Function | Sound alarm | ||||
| Communication Interface | RS232C、RS485、USB | ||||
| USB Interface | Copy, copy, storage function | ||||
| Control Interface | HANDLER(PLC) | ||||
| Current | Current range | AC (3-32)A | AC (3-45)A | AC (3-60)A | AC (3-120)A |
| Resolution | For voltages above 10A: 0.01A/step; For voltages below 10A: 0.001A/step; | ||||
| Accuracy | ± (2% of the set value + 0.02A) | ||||
| Voltage | Voltage range | AC 6V Max Open Circuit Voltage | AC 6V Max Open Circuit Voltage | AC 6V Max Open Circuit Voltage | |
| Frequency | 50/60Hz optional | ||||
| Waveform | sine wave | ||||
| ammeter | Ammeter measurement range | AC (3-32)A | AC (3-45)A | AC (3-70)A | AC (3-120)A |
| Resolution | Over 10A: 0.01A/step；; Below 10A: 0.001A/step； | ||||
| Accuracy | ±(2% of the set value +0.1A) | ||||
| resistance meter | Oximeter measurement range | 0-600mΩ, output current 3-10A; 0-120mΩ, output current 10A-32A | 0-600mΩ, output current 3-10A; 0-200mΩ, output current 10A-30A; 0-150mΩ, output current 30A-45A | 0-600mΩ, output current 3-15A; 0-300mΩ, output current 15A-30A; 0-100mΩ, output current 30A-50A; 0-60mΩ, output current 50A-70A | 0-600mΩ, 3-15A; 0-300mΩ, 15A-30A; 0-80mΩ, 30A-60A; 0-30mΩ, 60A-120A |
| Resolution | For voltages above 10A: 0.01A/step; For voltages below 10A: 0.001A/step; | For voltages above 10A: 0.01A/step; For voltages below 10A: 0.001A/step; | |||
| Accuracy | ≦ ± (2% of the reading + 1mΩ) | ||||
| Timer Range | 0-999.9S, resolution: 0.1S/step, accuracy: ≤ ±50ms | ||||
| Compensation Method | Manual or automatic, maximum offset: 100mΩ, accuracy: ≤ ± (2% of the reading + 1mΩ) | ||||
| Judgment Value Setting Resistor | 0-600mΩ, resolution: 1mΩ, accuracy: ≦ ± (2% of the reading + 1mΩ) | 0-600mΩ, resolution: 1mΩ, accuracy: ≤ ± (2% of the reading + 1mΩ). For currents ≤10A, no accuracy requirement is needed for 0~10mΩ. | |||
| Upper Limit Range | |||||
| Test Time Range Setting | 0-999.9S, where 0 indicates continuous. | ||||
| Operating Temperature and Humidity | 0℃-40℃，≦75%RH | ||||
| Power Supply | 100V-121V，198V-242V，47.5-63Hz | ||||
| Weight | 12.15KG | 12.9KG | 12.85KG | 35KG | |
| Standard Accessories | RS232 to USB cable, USB to square port cable, grounding test clip, power cord, RS232 serial port cable, host computer (downloadable from official website) | RK-12 (120A) test cable, power cord, RS232 serial port cable, RS232 to USB cable, USB to square port cable, RK260003A test cable, RK00048 test cable, host computer (downloadable from official website) | |||
| Optional Accessories (Complete Set) | RK00031, RK301 grounding point detection box, RK00070 serial port option LAN port | RS485 to USB cable, RK00031, RK101W grounding point detection box, RK00070 serial port option LAN port | |||
| RK9930/A/B程控接地电阻测试仪产品附件 | |||
| model | 图片 | type | 概述 |
| RK00004 |  |
standard configuration | The instrument comes with a power cord as standard and can be purchased separately. |
| RK-12(30A) |  |
standard configuration | The instrument comes with a grounding test line as standard and can be purchased separately. |
| RK-12-1（70A） |  |
standard configuration | The instrument comes with a standard testing line and can be purchased separately. |
| Factory calibration certificate |  |
standard configuration | The instrument comes with a standard product calibration certificate. |
| Upper computer software | standard configuration | The instrument comes standard with upper computer software. | |
| instructions | standard configuration | The instrument comes with a standard product user manual. | |
| Certificate of Conformity Warranty Card |  |
standard configuration | The instrument comes standard with a certificate of conformity and warranty card. |
| RS232 serial port connection cable |  |
standard configuration | The instrument comes standard with an RS232 serial port connection cable. |
| RS232 to USB connection cable |  |
standard configuration | The instrument is equipped with an RS232 to USB connection cable (for the upper computer). |
| USB to square port connection cable |  |
standard configuration | USB to square port connection cable (upper computer). |
| RK301 series inspection box |  |
Optional | Please refer to the attached checklist for details |
| RK00031 |  |
Optional | Optional USB to 485 cable for the instrument |
| RK00070 |  |
Optional | Instrument optional serial port option LAN network port |
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