Portable Digital Ground Resistance Tester 5A , Ground Resistance Test Equipment

Portable Digital Ground Resistance Tester 5A , Ground Resistance Test Equipment

1. Product Name:

Grounding resistance tester 5A

2. Accessory List

3. Equipment Description:

1. Measurement scope: 0~150Ω (including impedance of current pile)
2. Resolution: .001Ω
3. Measurement error: ± (reading×2%+0.005Ω)
4. Maximum output voltage: AC 400V (45Hz, 55Hz, double frequency, sine wave)
5. Maximum output current: AC 3A (45Hz, 55Hz, double frequency, sine wave)
6. Current output gears: 3/2.5/2/1.5/1A, one gear every 0.5A, totalling 9 gears.
7. Anti-jamming capacity: power frequency resistance 50Hz voltage 10V
8. Requirement for measuring line:
    Sectional area of cooper core of current line≥1.5mm2
    Sectional area of cooper core of voltage line≥1.0mm2
9. Electric power supply: AC 220V±10%, 50Hz
10. Contour dimension: 440×350×210mm3
11. Instrument weight: 30kg

4. Panel discription

1. Power supply socket (AC 220V)

2. Power switch

3. Printer

4. Emergency off

If any emergency happens during the testing process, disconnect the test output source so that all output power supplies can be turned off immediately to ensure the safety of operators and instruments without cutting off input power.

5. System reset button

With internal CPU reset, this system reset button is supposed to reset all control components in the instrument instead of disconnecting all output operation directly. So if any emergency happens during the process of measuring, please first consider pressing the system reset button to cut off output.

6. Full touch LCD screen

With a super screen showing every step vividly, users can finish the whole measuring process by touching the signs simply according to the instructions. However, the touch LCD display should be taken good care of because it belongs to precision component. So please avoid sun exposure, weight extrusion and scratching. Using pencil stubs or other plastic sticks will help to improve the accuracy when operating the LCD screen.

7. USB interface

USB insertion. All the measured data preserved by the instrument can be transformed to the flash disk automatically and the data are divided according to the date. Operators can check and make documents by using the inner application used in the instrument on the computers. When inserting the flash disk to transmit data, please don’t pull out the flash disk half way, which can result in serious data errors even cause damage to the flash disk.

8. Voltage measurement terminals P1 and P2 (Black )

Connect the P2 with the grounding grid to be measured, P1 with auxiliary voltage terminal. The potential difference between the auxiliary electrode and the ground grid is measured between P1 and P2.

9. Power output terminals C1 and C2 (Red)

Connect the C2 with the grounding grid to be measured, C1with auxiliary current terminal to make up the test current circuit.

10. Earth terminal

The instrument is supposed to connect with the ground safely.