Earth Tester
The DET-20A Digital Earth Tester is a tough, high-precision tool crafted to measure Earth Resistance, Soil Resistivity, and Earth Voltage with both reliability and accuracy. It boasts a 4½-digit LCD display with a backlight, and it uses RSR (Ratio Metric Synchronous Rectification) technology to ensure stable readings, even when the battery voltage dips.
4½-Digit LCD Display
with backlight for clear visibility
Utilizes a three-wire method
for measuring earth resistance
Employs a four-wire method
for measuring soil resistivity
128 Hz Test Frequency eliminates
harmonic interference
Earth Measurement
Voltage up to 200V
Replaceable Alkaline Batteries
for on-site flexibility
Technical Specifications
| Technical Specifications | |
| Power | |
| Mains Power Supply: | Internal, replaceable alkaline battery 1.5V x 6nos |
| Auto Power OFF: | After 10 min |
| Earth Resistance Range & Accuracy | |
| Range: | 0.0001Ω to 20.000 kΩ Auto Range |
| Accuracy: | at 25C + 2C 0.5% of reading + 2 digits 3P ± 10mΩ |
| Test Parameters | |
| Test Frequency: | 128Hz (± 0.5Hz) |
| Test Current Injection: | 10mA AC approx. @ 19.999Ω range 1mA AC approx. @ 199.99Ω range 100µA AC approx. @ 1999.9Ω range |
| Open Circuit Voltage: | < 40Volt AC approx |
| Earth Voltage Measurement | |
| Range: | 2V to 200V AC (±2% of the range ±2v.) |
| Resolution: | 0.1V |
| Display: | 4 ½ digit LCD Display with pleasant backlit |
| PC Interface: | USB |
| Report Storage: | 1000 Reports |
| Data Transfer: | Bluetooth (ISM Band 2.4GHz) (optional) |
| Soil Resistivity: | Method Wenner: PE = 2 π a Rw (Ωm) |
| General | |
| Dimensions: | 230 mm(H) X 165 mm(W) X 95 mm(L). |
| Weight: | 1.35 Kg (Approx.) |
| Environmental | |
| Operating Temperature: | 0 C to 55C |
| Storage Temperature: | 0-10C to 60C |
| Relative Humidity: | 95% RH at 40C max. (Non Condensing) |
Trusted by Industry Leaders in India and Worldwide
"Motwane is the oldest and the most trusted company in electrical testing products and solutions also. Motwane is known for reliable and rugged products also, we have procured from them. And our organization has been using these products and have found them satisfactory in performance and services also."
Mr. Shrikant S Rajurkar
Director Technical
MSETCL
"MOT-ware will enable us to go live with data immediately after recording."
Mr. Sanjay Sarkar
Head Projects
IBMS SPG, Sterling & Wilson
"Motwane products are highly reliable, built with great quality, and deliver accurate results. We at BSES Rajdhani Power have been using Motwane products for many years, and continue to do so."
Mr. Shailendra Saxena
Additional VP Protection
BSES Rajdhani Power Ltd.
