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Description
DUOYI Digital Ground Resistance Meter Tester, DY4100A, DY4100B1. Ground resistance Re (Rg when testing soil resistivity p) 2. Range: 2 ohms 20 ohms 200 ohms 2000 ohms 3. Test range: 0. 03~2. 000 ohms 0. 03~20. 00 ohms 0. 03~200. 0 ohms 0. 03~2000 ohms 4. Voltage to ground (AC voltage): 600V Test range 0~600Vac 5. Photovoltaic voltage (DC voltage): 1500V Test range: 0~1500Vac 6. Test method: voltage drop method (applicable to the current and voltage test of the probe) 7. Display: segment LCD display, display
1. Ground resistance Re (Rg when testing soil resistivity p)
2. Range: 2 ohms/20 ohms/200 ohms/2000 ohms
3. Test range: 0.03~2.000 ohms/0.03~20.00 ohms/0.03~200.0 ohms/0.03~2000 ohms
4. Voltage to ground (AC voltage): 600V Test range 0~600Vac
5. Photovoltaic voltage (DC voltage): 1500V Test range: 0~1500Vac
6. Test method: voltage drop method (applicable to the current and voltage test of the probe)
7. Display: segment LCD display, display backlight
8. Battery voltage warning: Battery logo display
9. Continuous test times: In the 2 ohm range, test once every 30 seconds with a 1 ohm load, and can be repeated more than 400 times
10. Input exceeds display: Display "OL"
11. Automatic shutdown function: If there is no operation for 5 minutes after the key operation, the system will enter the automatic shutdown state
12. Overload protection: AC280V/10 seconds between E-S ports
13. Withstand voltage: AC3540V (50/60Hz)/5 seconds between the electrical circuit and the outer box
14. Insulation resistance: 50 milliohms or more between the electrical circuit and the outer box/DC 1000V
15. Power supply: 6 AA batteries (not included)
16. When testing the ground resistance and soil resistivity, the series interference voltage will be automatically tested synchronously, and a prompt will be given if there is an abnormal test result
17. High-definition display, clear reading, easy measurement
18. Multiple gear selection, can be adjusted according to different needs
19. Applicable to measurement in power, post and telecommunications, railway, petroleum, chemical, communication, mining and other departments
20. Dimensions: 173x125x68mm
Packing list:
- DY4100A instrument x 1
- Cloth bag x 1
- Instruction manual x 1
- Certificate x 1
- Test line x 1 (red 15m/yellow 10m/green 5m)
- Multimeter pen x 1
- Ground rod x 2
Specification:
| Package Weight |
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★★★★★ 5
Pure enjoyment
Format: Paperback
Expanding my knowledge and enjoying the history
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Reviewed in the United States on September 7, 2022
★★★★★ 5
Great Book Needed for Class
Format: Paperback
My daughter needed this book for her Masters class. Glad we easily found it on Amazon.
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Reviewed in the United States on September 30, 2025
★★★★★ 5
Required Reading
Format: Paperback
Merwin’s four most important books all collected in one.
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Reviewed in the United States on March 17, 2023
★★★★★ 5
I was happy to discover Merwin's poetry.
Format: Paperback
Great collection of some of Merwin's early poetry. There's a mystical mysterious feel too a lot of his writing, which I like.
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Reviewed in the United States on April 3, 2019
★★★★★ 4
A Reading of "The Last One"
Format: Paperback
This poem represents Merwin at his insidious best, the conversational tone of the poem slowly leading to something imminently and undefinably dark, doom-laden. The poem was originally published in "The Lice" a book of poems written in the French countryside where, Merwin says, "I felt at once a profound attraction to the rural world in which I was living and a disquieting recognition of the fragility and uncertainty of my relation to it."
"The Last One" ominously conveys that disquiet.
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Reviewed in the United States on May 12, 2011
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