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SEW Wire Earth Resistance Tester ST-1520
Specifications
| Country of Origin | Taiwan |
|---|---|
| Package Contents | SEW ST-1520 DET 3 Wire Earth Resistance Tester/Instruction manual/Test leads (red-15m yellow-10m green-5m)/Auxiliary earth bars/Carry case/Batteries |
| Accuracy | Earth resistance ±(2%rdg+2dgt) or ±0.1Ω whichever is greater/Earth voltage ±(1%rdg+2dgt) |
| Display | 3½ digit (2000 counts) |
| Power Source | 1.5V (AA)x6 |
| Brand | SEW |
| Dimensions | 163x100x50 mm |
| Model | SEW ST-1520 |
| Safety Standard | EN 61010-1 CAT III 200V EN 55022 |
| Measuring ranges | Earth resistance 0-20Ω/0-200Ω/0-2000Ω/Earth voltage 0-200 Vac (40-500Hz) |
| Measuring System | Earth resistance by constant current inverter 820Hz approx.2mA |
| Low Battery Indication | “B” symbol appears on display |
| Over range indication | “1”(MSD) |
| Weight (Battery Included) | Approx.480 g |
| Earth Resistance Resolution | 0-20Ω 0.01Ω 0-200Ω 0.1Ω 0-2000Ω 1Ω |
| Open Circuit Indication | LED will be unlit |
| Data Hold Indication | “DH” symbol appears on display |
Key Features
- Capable of measuring earth resistance and earth voltage.
- 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.
- Auto power off function.
- The timer operates automatically for about three to five minutes when the "PUSH BUTTON SWITCH" and "TIMER ON BUTTON" are pressed together. This will keep test "ON" for the duration of the timer.
- Timer for test function (count 3-5 minutes).
- Battery operated.
- Data hold function.
- Small and light weight.
- Calibration performed with supplied test leads
Product Description
The SEW ST-1520 is a rugged and precise Earth Resistance Tester designed to measure ground resistance and voltage in all kinds of electrical installations. Using both two-pole and three-pole measurement methods, it ensures reliable ground integrity in transformer substations, telecommunications towers, and industrial earthing systems. This analog meter is built with a sturdy exterior for harsh site conditions, while the ergonomic handle and easy-to-read scale offer enhanced usability. The tester includes auxiliary earth spikes and test leads for complete setup. Its high accuracy and safety ratings make it indispensable for electricians and technicians who prioritize compliance and safety in electrical grounding.
Available on EnvMart, these Resistance Meters are ideal for measuring electrical resistance with high accuracy. SEW Resistance Meters offer precision and reliability, making them perfect for industrial, laboratory, and electrical testing applications.
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Frequently Asked Questions
The SEW ST-1520 can measure earth resistance in three ranges: 0-20Ω, 0-200Ω, and 0-2000Ω, as well as earth voltage from 0-200 Vac (40-500Hz).
The accuracy for earth resistance measurements is ±(2%rdg+2dgt) or ±0.1Ω, whichever is greater.
The SEW ST-1520 is powered by six 1.5V AA batteries.
The dimensions of the SEW ST-1520 are 163x100x50 mm, and it weighs approximately 480 g with the battery included.
The SEW ST-1520 complies with safety standards EN 61010-1 CAT III 200V and EN 55022.
The resolution for earth resistance measurements is 0.01Ω for 0-20Ω, 0.1Ω for 0-200Ω, and 1Ω for 0-2000Ω.
The SEW ST-1520 uses a constant current inverter at approximately 820Hz with a measuring current of about 2mA for earth resistance measurements.
The SEW ST-1520 features an ergonomic handle, an easy-to-read scale, a data hold function, and an auto power-off function for enhanced usability.
The SEW ST-1520 can perform both earth resistance and earth voltage measurements, ensuring reliable ground integrity in various electrical installations.
The open circuit indication for the SEW ST-1520 is shown when the LED is unlit.
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