UT523A Digital Earth Ground Resistance Voltage Soil Resistivity Tester With Alarm

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.

Parameter

Specification	Range	Best Accuracy
Model		UT523A
Earth Resisitance(R)	0.00-19.99	(2%+5)
	20.0-199.9	(2%+5)
	200-1999	(2%+5)
	2.00k-19.99k	(2%+5)
	20.0k-210.0k	(2%+5)
Soil Resistivity()	0.00m-99.99m	According to the precision of R(=2aR a:1 m-100m;=3.141)
	100.0m-999.9m
	1000m-9999m
	10.00km-99.99km
	100.0km-999.9km
	1000km-9000km
AC Earth Voltage (V)	AC 0.00-750V	(2%+5)
Test Frequency	128Hz/111Hz/105Hz/94Hz(AFC)
Special Functions
Measuring Method	Earth Resistance: rated current change-pole method, measurement current 20mA Max
	Soil Resistivity: 4-pole measurement (Wenner method)
	Earth Voltage: average rectification(between P(S)-ES)
Short-circuit Test Current	AC 30mA max
Open-circuit Test Current	AC 40V max
Auto Range
Electrode Distance Range	Can be set 1m~200m
Test Voltage Wave	Sine Wave
Line Voltage	below AC 750V
Low Battery Indication	7.5V
Date Hold
Alarm Function
RS232 Interface
Withstanding Voltage	AC 3700V/rms (Between circuit and enclosure)
LCD Backlight
Date Logging	300 Groups
Auxiliary Earthing Test	Can measure auxiliary earth resistance, 0.00K-30k(100R+rC<50k, 100R+rP<50k)
Overload Protection	Measuring earth resistance: between each interfaces of C(H)-E,P(S)-ES,AC 280V/3 seconds
Interference Test	Recognize interference signal automatically, NOISE icon display when interference voltage exceed 5V
Measuring Times	Over 5000 times (Short-circuit test, interval time should be at least 30 seconds)
Insulation Resistance	Over 20M (between circuit and enclosure it is 500V)
General Characteristics
Power Supply	DC 9V(Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours )
LCD Size	128mm×75mm
Product Color	Red + Grey
Product Net Weight	1443g
Product Size	215mm×190mm×95mm
Standard Accessaries	Standard testing Wire,Simple testing line, Software CD, RS232 Interface Cable
Standard Individual Packing	Toolbox, Gift Box,Manual,Warranty Card. (Batteries not included in package)
Standard Quantity Per Carton	3 Pcs
Standard Carton Measurement	500mm×478mm×343mm
Standard Carton Gross Weight	22.5Kg