Earth Resistance Soil Resistivity Tester 2 / 3 / 4 Wire
Model KM 1320
KM 1320 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.
KM 1320 Earth Resistance Soil Resistivity Tester is composed of host machine, monitoring software, testing wires, auxiliary ground pillars, communication wires and others. The large LCD display of host machine is with blue backlight & bar graph indicating that can be seen clearly. At the same time it can store 300 sets of data, fulfilling historical inquiry and online realtime monitoring through monitoring software, dynamic display, alarm indicator, and with the functions like historical data access, reading, preservation, report forms, printing and so on.
General Specifications :• Function : Measurement of 2/3/4-pole earth resistance, soil resistivity, earth voltage, AC voltage
• Measurement Range :
Earth Resistance: 0.00Ω-30.00k Ω
Soil Resistivity: 0.00Ω-9000k Ω
• Measuring Mode : Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement
• Measuring Method :
Earth Resistance: rated current change-pole method, measurement current 20mA Max
Soil Resistivity: 4-pole measurement
Earth Voltage: average rectification(between P(S)-ES)
• Test Frequency : 128Hz/111Hz/105Hz/94Hz(AFC)
• Short-circuit Test Current : AC 20mA max
• Open-circuit Test Current : AC 40V max
• Test Voltage Wave : Sine wave
• Electrode Distance Range : Can be set 1m-100m
• Shift :
Earth Resistance: 0.00Ω-30.00kΩ, automatic shift
Soil Resistivity: 0.00Ω-9000kΩ, automatic shift
• Backlight : Blue screen backlight, suitable for dim places
• Display Mode : 4-digital super-large LCD display, blue screen backlight
• Measuring Indicator : During measurement, LED flash indicator, LCD count down display, progress bar indicator
• LCD Frame Dimension : 128 mm × 75 mm
• LCD Window Dimension : 124 mm × 67 mm
• Standard Test Wire : 4 wires: each for red 20m, black 20m, yellow 10m, and green 10m
• Simple Test Wire : 2 wires: each for red 1.6m and black 1.6m
• Auxiliary Earthing Rod : 4 rods: Φ10mm ×150mm
• Measuring Rate :
Earth voltage: about 3 times/second
Earth resistance, soil resistivity: about 5 seconds/time
• Line Voltage : below AC 600V