OEM China China Digital Earth Resistance Tester (DER-II)

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Adhering to your principle of “quality, assistance, performance and growth”, we’ve obtained trusts and praises from domestic and worldwide client for OEM China China Digital Earth Resistance Tester (DER-II), We are also the appointed OEM factory for several worlds’ famous products brands. Welcome to contact us for further negotiation and cooperation.
Adhering to your principle of “quality, assistance, performance and growth”, we’ve obtained trusts and praises from domestic and worldwide client for China Earth Resistance Tester, Earth Resistance Tester Lab Equipment, We have been your reliable partner in international markets with the best quality solutions. Our advantages are innovation, flexibility and reliability which have been built during the last twenty years. We focus on providing service for our clients as a key element in strengthening our long-term relationships. Our continual availability of high grade items in combination with our excellent pre-sales and after-sales service ensures strong competitiveness in an increasingly globalized market.

RK9930 GROUND RESISTANCE TESTER

The AC 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

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

Adhering to your principle of “quality, assistance, performance and growth”, we’ve obtained trusts and praises from domestic and worldwide client for OEM China China Digital Earth Resistance Tester (DER-II), We are also the appointed OEM factory for several worlds’ famous products brands. Welcome to contact us for further negotiation and cooperation.
OEM China China Earth Resistance Tester, Earth Resistance Tester Lab Equipment, We have been your reliable partner in international markets with the best quality solutions. Our advantages are innovation, flexibility and reliability which have been built during the last twenty years. We focus on providing service for our clients as a key element in strengthening our long-term relationships. Our continual availability of high grade items in combination with our excellent pre-sales and after-sales service ensures strong competitiveness in an increasingly globalized market.

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Model		RK9930			RK9930A				RK9930B
Basic Function	Screen Size	5 Inch TFT LCD
	Number Keys	Parameter Setting Digital Input
	Coding Switch	Parameter Selection And Confirmation Function
	Up, Down, Left And Right Function Keys	Parameter Setting Up And Down Selection Function
	Lock Keyboard Lock Function	Prevent Accidental Modification Of Test Conditions Or Prohibit Modification Of Test Conditions
	Alarm Function	Sound Alarm
	Communication Interface	RS232C、RS484、USB
	USB Interface	Copy, Copy And Storage Functions
	Control Interface	HANDLER(PLC)
Output Specifications	Current	Current Range	AC (3-30)A				AC (3-40)A			AC (3-60)A
		Resolving Power	0.01A/Step For 10A And 0.001A/Step For 10A And Below;
		Accuracy	±（2% +0.02A)
	Voltage	Voltage Range	AC 6V Max Open Circuit Voltage				AC 8V Max Open Circuit Voltage			AC 12V Max Open Circuit Voltage
		Frequency	50/60Hz Optional
		Wave Form	Sine Wave
	Ammeter	Measuring Range Of Ammeter	AC (3-30)A				AC (3-40)A			AC (3-60)A
		Resolving Power	0.01A/Step For 10A And 0.001A/Step For 10A And Below;
		Accuracy	±（2% +0.1A)
	Resistance Meter	Measuring Range Of Resistance Meter	0-510 M Ω, When The Output Current Is 3-10A; 0-120m Ω, When The Output Current Is 10A-30A			0-600m Ω, When The Output Current Is 3-10A; 0-200m Ω, When The Output Current Is 10A-30A; 0-150m Ω, When The Output Current Is 30A-40A					0-600m Ω, When The Output Current Is 3-15A; 0-300m Ω, When The Output Current Is 15A-30A; 0-150m Ω, When The Output Current Is 30A-60A
		Resolving Power	0.01A/Step For 10A And 0.001A/Step For 10A And Below;
		Accuracy	≦ ±（2%+1mΩ)
	Timer Range	0-999.9S，Resolving Power：0.1S/Step，Accuracy：≦ ±50ms
	Compensation Mode	Manual Or Automatic, Maximum Offset：100mΩ Max，Accuracy：≦ ±（2%+1mΩ)
	Set The Upper Limit Range Of The Resistance	0-510mΩ Or 0-600mΩ，Resolving Power：1m Ω，Accuracy：≦ ±（2% +1m Ω)
	Test Time Range Setting	0-999.9S，0 Means Continuity
Working Temperature And Humidity	0℃-40℃，≦75%RH
Power Supply	100V-121V，198V-242V，47.5-63Hz
Shape And Volume	430mm×105mm×350mm
Weight		13KG		14KG				15KG

	Picture	Type
RK-8H+		Standard	Test Bar
RK260100		Standard	Test Wire
RK26103		Standard	Ground Lead
Power Cord		Standard
Warranty Card		Standard
Factory Calibration Certificate		Standard
Manual		Standard