4-Terminal Earth Resistance Tester and Soil Resistivity Tester

    DY4300B is a 2/ 3/ 4-Wire Digital Earth Resistance/ Earth Resistivity Tester equipped with a microcomputer and can measure earth resistances and calculate earth resistivities (ρ). The instrument can measure earth resistances on power distribution lines, in-house wiring system and electrical appliances etc. due to the low output voltage: approx 10Vrms or less.

4-Terminal Earth Resistance Tester and Soil Resistivity Tester

    DY4300B is a 2/ 3/ 4-Wire Digital Earth Resistance/ Earth Resistivity Tester equipped with a microcomputer and can measure earth resistances and calculate earth resistivities (ρ). The instrument can measure earth resistances on power distribution lines, in-house wiring system and electrical appliances etc. due to the low output voltage: approx 10Vrms or less.

·Designed to meet following safety standards.

IEC 61010-1 (CAT. III 300V, CAT. IV 150V, Pollution degree 2)

IEC 61010-031（Requirements for hand-held Probes）

IEC 61557-1, 5 (Earth Resistance Tester)

· Stable measurement results can be obtained under a noisy environment by introducing the FFT (Fast Fourier Transform) technology.

Dot-matrix 192x64, Monochrome LCD.

Backlight function to view the test results in dimly areas.

Can switch frequencies of measuring signal4-kind of frequencies : 94 / 105 / 111 / 128Hz, are selectable by hand or automatically.

Rk Function is available to cancel the residual resistance on the Test Leads.

Battery Check Function

Can measure Series Interference Voltage/ Frequency Voltage values and frequencies are displayed when Series Interference voltage (AC) exist.

Auxiliary Earth Resistance Measurement Function.

Auxiliary earth resistances are measured and displayed.

· Warning for Auxiliary Earth Resistance Measurements Warnings are displayed on the LCD when auxiliary earth resistances are too high and may result in inaccurate measurements.

·Auto-Power-Off Function.

The instrument is automatically powered off when 5 min passes without any Key operation.

·Memory Function. Can save 800 measured results.

4-Terminal Earth Resistance Tester and Soil Resistivity Tester

Applicable Standards

IEC 61010-1 Measurement CAT. III 300V, CAT. IV 150V Pollution degree 2

IEC 61010-031 Standard for hand-held Probes

IEC 61557-1, 5 Earth Resistance Tester

IEC 61326-1 EMC Standard

Measuring range and accuracy (23℃5℃,relative humidity 45~75%RH)

· LCD Dot-matrix 192X64, monochrome Backlight.

· Earth resistance: max 209.9kW. Earth resistivity Interference Voltage: max 50.9V.

· Low Battery Warning: Battery mark appears.

· Continuous Measurement: 400 times or more with manganese batteries; repeating measurements at every 30 sec with a load of 1W at 2W range.

· Over-range Indication :OL

· Auto-Power-Off: automatically powered off when 5 min passes without any Key operation.

· Location for use: Indoor/ Outdoor use (Not completely waterproof), altitude 2000m or less.

· Applicable range: Testing earth resistance on power distribution lines, in-house wiring system and electrical appliances.

· Temperature & Humidity range (guaranteed accuracy) :23℃~5℃ , relative humidity 85％ or less (no condensation)

· Operating Temperature & Humidity range :-10℃ ~ 50℃ , relative humidity75％ or less (no condensation).

* Supplied Test leads cannot be used at 0℃ or less.

· Storage Temperature & Humidity range:-20℃~-60℃ , relative humidity 75％ or less (no condensation).

· Overload Protection : between E-S(P) and between E-H(C) terminals AC280V / 10 sec

· Withstand Voltage : between the electrical circuit and enclosure. AC3540V(50/60Hz) / 5 sec

· Insulation Resistance : between the electrical circuit and enclosure 50MW or more / DC1000V.

· Dimension:167*185*89mm.

· Weight:900g(including batteries)

· Power source：DC12v:size AA manganese dry battery((R6P)*8

** In a use of this instrument under low temperature below 0℃, a use of alkaline batteries with low temperature spec is recommended.

Range to keep the maximum operating error

Measurement range within which the maximum operating error(±30%)applies.

2W Range:0.5W~2.099W

20gRange:2W~20.99W

200W Range:20W~209.9W

2000W Range:2kW~20.99kW

20kW Range:2kW~20.99kW

200kW Range:20kW~209.9kW

Variation of Supply Voltage : until the Battery Warning mark appears

Temperature Variation : -10℃ ~ 50℃

Series Interference Voltage: 16ˉ2/3Hz, 50Hz, 60Hz, 400Hz and DC3V.