- Stock: In Stock
- Model: UT523A UNI-T
UT523A Digital Earth Resistance Soil Resistivity Tester
Basic Functions | Range | Best Accuracy |
Model | | UT523A |
Earth resistance | 0.00Ω～19.99Ω | ±(2%+5) |
20.0Ω～199.9Ω | ±(2%+5) | |
200Ω～1999Ω | ±(2%+5) | |
2.00kΩ～19.99kΩ | ±(2%+5) | |
20.0kΩ～210.0kΩ | ±(2%+5) | |
Soil resistivity | 0.00Ωm～99.99Ωm | Decided by measuring precision of R: (ρ=2πaR a:1 m～100m, π=3.141) |
100.0Ωm～999.9Ωm | ||
1000Ωm～9999Ωm | ||
10.00kΩm～99.99kΩm | ||
100.0kΩm～999.9kΩm | ||
1000kΩm～9000kΩm | ||
Earth voltage | AC 0.00～750V | ±(2%+5) |
Testing resistance | 128Hz/111Hz/105Hz/94Hz(AFC) | √ |
Features | ||
Measuring method | Earth resistance: rated current pole changing method with
Max 20mA measuring current; | √ |
Short-circuit testing current | AC 30mA max | √ |
Open-circuit testing voltage | AC 40V max | √ |
Auto range | | √ |
Distance between electrodes | 1m～200m
can be set. | √ |
Testing voltage waveform | Sine wave | √ |
Line voltage | Measure when the voltage is below 750V AC | √ |
Low battery indicator | ≤7.5V | √ |
Data hold | | √ |
Alarm function | | √ |
RS232 interface | | √ |
Withstand voltage | AC 3700V/rms(between circuit and case) | √ |
LCD backlight | | √ |
Data storage | 300 groups | √ |
Auxiliary earth resistance test | 0.00KΩ～30kΩ(100R+rC<50kΩ,
100R+rP<50kΩ) | √ |
Overload protection | Earth resistance measurement: input 280V AC between C(H)
and E, P(S) and ES for 3s | √ |
Interference test | Auto identify interference signals, when interference
voltage is higher than 5V, the symbol NOISE is displayed. | √ |
Measuring time(s) | More than 5000 times (perform short circuit test once, and
again after 30s) | √ |
Insulation resistance | Above 20MΩ (500V between circuit and case) | √ |
General Characteristics | ||
Power supply | DC 9V (6 Zinc-manganese dry batteries, R14S 1.5V; can
continuously standby for 300hrs) | |
LCD size | 128mm×75mm | |
Product color | Red and grey | |
Product weight | 1443g (including batteries) | |
Product size | 215mm×190mm×95mm | |
Standard accessories | Standard test lead, simple test lead, batteries, PC
software CD, RS232 interface cable | |
Standard Individual Packing | Tool box, gift box, English manual, warranty card | |