Model |
ATO-ERT-3100C |
Earth Resistance(R) |
Range: 0.00Ω~30.00Ω Resolution: 0.01Ω Accuracy: ±2%rdg±3dgt |
Range: 30.0Ω~300.0Ω Resolution: 0.1Ω Accuracy: ±2%rdg±3dgt |
Range : 300Ω~3000Ω Resolution: 1Ω Accuracy: ±2%rdg±3dgt |
Range: 3.00kΩ~30.00kΩ Resolution: 10Ω Accuracy: ±4%rdg±3dgt |
Earth Voltage |
Range: AC 0.0~600V Resolution: 0.1V Accuracy: ±2%rdg±3dgt |
Soil Resistivity(ρ) |
Range: 0.00Ωm~99.99Ωm Resolution: 0.01Ωm |
Accuracy: According to the precision of R
(ρ=2πaR, a: 1 m-100m, π=3.14)
|
Range: 100.0Ωm~999.9Ωm Resolution: 0.1Ωm |
Range: 1000Ωm~9999Ωm Resolution: 1Ωm |
Range: 10.00kΩm~99.99kΩm Resolution: 10Ωm |
Range: 100.0kΩm~999.9kΩm Resolution: 100Ωm |
Range: 1000kΩm~9000kΩm Resolution: 1kΩm |
Power Supply |
DC 7.4V 2600mAh rechargeable lithium battery, full charge about DC 8.4V |
Measurement Method |
Earth Resistance: rated current change-pole method, measure current 20mA Max Soil Resistivity: Wenner 4-pole measurement Earth Voltage: average rectification(between P(S)-ES) |
Test Frequency |
128Hz/111Hz/105Hz/94Hz (AFC) |
Test Voltage Wave |
Sine wave |
Short-circuit Test Current |
AC 20mA max |
Open-circuit Test Current |
AC 40V max |
Data Storage |
300 groups |
Data Hold |
Data hold function: "HOLD" symbol display |
Data Access |
Data access function: "READ" symbol display |
Overflow Display |
Exceeding measure range overflow function: "OL" symbol display |
LCD Dimension |
LCD Frame Dimension: 128mm×75mm; LCD Display Dimension: 124mm×67mm |
Tester Dimension |
280mm(L)×260mm(W)×160mm(H) |
Weight |
Total Weight: 5700g(with package) |
Testing Wires |
Red 20m, black 20m, yellow 10m, green 10m, red 1.6m, black 1.6m (total 6pcs wires) |
Auxiliary Ground Rod |
4PCS: Φ10mm×250mmp10mmx250mm |
USB Interface |
With a USB interface, software monitoring, stored data can be uploaded to a computer, saved and printed, data transmission cable length: 1.5m |
Alarm Function |
Measure value exceeds alarm setting value, will "Toot-toot-toot" alarm indication |
Auto Shutdown |
15 minutes after power is on, will automatically shut down without any operation. |
Overload Protection |
Measure earth resistance: between each interfaces of C(H)-E, P(S)-ES, AC 280V/3 seconds |
Interference Test |
Automatic recognition of interference signal, interference voltage higher than 5V will display the "NOISE" symbol |
Auxiliary Grounding Test |
Auxiliary earth resistance test function: 0.00kΩ~30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ) |
Protection Level |
IP65(close the case) |
Battery Voltage |
When the battery voltage decreases to around DC 7.2V+0.1V, will display the battery voltage low symbol, and remind to replace the battery |
Working Current |
Standby: around 20mA (Backlight close); Power on with backlight: 45mA (backlight close 25mA); Measurement: 100mA (Backlight close) |
Accessories |
Tester: 1PC; Ground Rod: 4PCS; Test wires: 4PCS; Simple test wire: 2PCS; USB data transmission cable: 1PCS; Tester bag: 1PCS; Special charger: 1PCS |