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Model 4200 Earth
Clamp Tester |
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Earth Testers |
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Features
- The earth resistance from 0.05Ω
to 1200Ω can be measured without the
auxiliary earth spikes. (The Multiple Earthing System).
- True RMS: Accurate true RMS readings of
AC current including distorted waveform from 1mA to 30.0A.
- Noise Check Function: A function to
detect current, which effects on an earth resistance measurement
and display 'NOISE' mark on the LCD.
- Memory Function: Save and display up to
100 measurement data.
- Data Hold function, Buzzer function,
Back Light function.
- Compliant with Safety Standards of IEC
61010-1: CAT. IV 300V Pollution Degree 2.
(Note: A single earthing can not be measured. (Only for
Multiple Earthing System).
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Specifications |
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Function |
Range |
Resolution |
Measuring Range |
Accuracy |
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Earth Resistance (Auto Range) |
2Ω |
0.01Ω (note1) |
0.00Ω to 20.99Ω |
±1.5% rdg ±0.05Ω |
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200Ω |
0.1Ω |
16.0Ω to 99.9Ω |
±2% of rdg ±0.5Ω |
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100.0Ω to 209.9Ω |
±5% of rdg ±2Ω |
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1200Ω |
1Ω |
160Ω to 399Ω |
±5% of rdg ±5Ω |
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400Ω to 599Ω |
±10% of rdg ±10Ω |
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10Ω |
600Ω to 1260Ω |
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AC Current
(50Hz/60Hz) Auto Range |
100mA |
0.1mA |
0.0 to 104.9mA |
±2% of rdg ±0.7mA |
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1000mA |
1mA |
80 to 1049mA |
±2% |
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10A |
0.01A |
0.80 to 10.49A |
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30A |
0.1A |
8.0 to 31.5A |
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| Note1: |
4 counts or less are corrected to 0. |
| Note: |
Crest Factor ≤3 (50Hz/60Hz, peak value
shall not exceed 60A). |
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Operating System |
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Earth Resistance Function |
Constant Voltage Injection |
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Current Detection |
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(Frequency: Approx. 2400Hz) |
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Dual Integration |
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AC Current Function |
Successive Approximation |
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Other Specifications |
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Over-range Indication |
"OL" is displayed when input exceeds the upper limit of a measuring
range. |
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Response Time |
Approx. 7 seconds (Earth Resistance)
Approx. 2 seconds (AC Current) |
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Sample Rate |
Approx. 1 times per second |
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Auto Power-off |
Turns power off about 10 minutes after last button operation |
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Withstand Voltage |
Between transformer jaws fitted parts and Case enclosure, (except
for jaws) (5320 volts AC 50/60Hz for 5 sec.) |
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Applicable Standards |
IEC 61010-1: 2001 ( CAT. IV 300V, Pollution Degree 2 |
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General Specifications |
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Conductor Size |
Approx. 32mm maximum |
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Power Source (DC 6 volts) |
R6P size 'AA' manganese batteries x 6 pcs. |
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Current Consumption |
Approx. 50mA (max. 100mA). |
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Dimensions |
246mm (L) x 120mm (W) x 54mm (D) |
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Weight |
780g (including batteries) |
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Ordering Information |
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Model 4200 |
Earth Clamp Tester. Includes: Resistor for Operation Check
Qty 1. (#8304), One Hard Case (#9128), and Instruction manual. |
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