UNI-T UT523A Earth Ground Tester

Model # UT523A

UT523 Series Earth Resistance Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage, AC voltage.
Adopting the latest digital and micro-processing technology, precise 4-pole, 3-pole and simple 2-pole method for earth resistance measurement.
Importing FFT and AFC technology, with a unique function of anti-interference capability and the ability to adapt to the environment.

BrandUNI-T
Model NumberUT523A

ADD TO MY RFQ LIST Add to your requistion list to get a quote.

Features
Specifications

UT523 Series Earth Resistance Soil Resistivity Tester is specially designed and manufactured for measuring earth resistance, soil resistivity, earth voltage, AC voltage.
Adopting the latest digital and micro-processing technology, precise 4-pole, 3-pole and simple 2-pole method for earth resistance measurement.
Importing FFT and AFC technology, with a unique function of anti-interference capability and the ability to adapt to the environment.
Consistency of repeat testing, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment and other earth resistance, soil resistivity, earth voltage, AC voltage measurement.

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; soil resistivity: quadrupole method (Wen-Na method ); earth voltage: average rectifier (between P(S) and ES interfaces)	√
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 symbole 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
Standard Quantity Per Carton	4pcs
Standard Carton Measurement	650mm×560mm×300mm
Standard Carton Cross Weight	30kg (including batteries)