SEW 1105 ER Analogue Earth Resistance Tester
Summary 1105 ER
- Instrument type: analogue
- Earth Voltage Test: 0 – 30V
- Earth Resistance Test: 0 – 12Ω, 0 – 120Ω, 0 – 1200Ω
- Measuring Method: 3-wire testing
- Additional Features: battery check function, open circuit indication
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
- In addition to facilitating for precision measurement, test leads for simplified two-wire measuring system also are supplied as standard accessories
- Battery operated. Battery life indicator
- Calibration performed with supplied test leads
Measuring methods
Specifications
| Measuring ranges | Earth resistance 0-12Ω / 0-120Ω / 0-1200Ω |
| Earth voltage 0-30 Vac (40-500Hz) | |
| Accuracy | Earth resistance ±3% of full scale Earth voltage ±2.5% of full scale |
| Measuring system | Earth resistance by constant current inverter 820 Hz, 2mA approx. |
| Open circuit indication | LED will be unlit |
| Dimensions | 175(L) × 85(W) × 75(D)mm |
| Weight (battery included) | Approx. 600g |
| Power source | 1.5V (AA) × 8 |
| Safety standard | EN 61010-1 CAT IV 30V EN 61326-1 |
Scope of delivery 1105 ER
- Analogue Earth Resistance Tester 1105 ER
- Instruction manual
- Test leads (red-15m, yellow -10m, green-5m)
- Auxiliary earth spikes
- Simplified measurement probe
- Shoulder belt
- Batteries
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