SEW 4120ER Earth Resistance Testers
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.
- The leads are supplied as standard accessories for simplified two-wire measuring system.
- Battery operated.
- Data hold function.
- Battery test indication.
- Calibration performed with supplied test leads.
SPECIFICATIONS
|
Measuring ranges |
Earth resistance 0-20Ω / 0-200Ω / 0-2000Ω Earth voltage 0-200 Vac(40-500Hz) |
|
Accuracy |
Earth resistance ±(2%rdg+2dgt) at 200/2000Ω ±(2%rdg+0.1Ω) at 20Ω Earth voltage ±(1%rdg+2dgt) |
|
Earth resistance resolution |
0-20Ω : 0.01Ω 0-200Ω : 0.1Ω 0-2000Ω : 1Ω |
|
Measuring system |
Earth Resistance by constant current inverter 820Hz approx. 2mA |
|
Display |
3½ digit (2000 counts) |
|
Open circuit indication |
LED will be unlit |
|
Low battery indication |
“  “symbol appears on the display |
|
Data hold indication |
“  “symbol appears on the display |
|
Over range indication |
“1”(MSD) |
|
Dimensions |
250(L) × 190(W) × 110(D)mm |
|
Weight (battery included) |
Approx. 1500g |
|
Power source |
1.5V (AA) × 8 |
|
Safety standards |
EN 61010-1 CAT III 300V IEC 61557-1 IEC 61557-5 EN 61326-1 |
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