Cầu đo điện trở 1 chiều C.A 6240
Wide measurement range and excellent accuracy due to:
–the 4-wire measurement method
–current reversal
– test current up to 10 A
Very easy to use
Automatic measurement mode
Automatic "on the fly" or manual recording mode
Possibility of measurements on inductive components
Measurement prohibited in the presence of a disturbance voltage
Protection against accidental overloads up to 500 V
Large backlit LCD display
Cầu đo điện trở 1 chiều C.A 6240
APPLICATIONS:
The C.A. 6240 allows quick detection of any deterioration between 2 contact points. This means it can be used for a very broad range of applications:
• Contact resistance of switches and circuit breakers
• Earth continuity
• Quality of weld spots
• Surface condition and metallizing
• Graphite electrode…
The C.A. 6240 micro-ohmmeter provides reliable, accurate measurements due to its test current of up to 10 A. This accuracy is ensured through:
• use of the 4-wire method which eliminates the effects of the leads' resistances and the contact resistances.
• the possibility of reversing the polarity of the measurement current, thus eliminating the effects of possible interference voltages.
Measurement Range Resolution Accuracy Measurement current No-load voltage
5 to 3,999 mΩ 1 µΩ ± 0.25% ±2 counts 10A 4 to 6V
4 to 39.99 Ω 10 µΩ ± 0.25% ±2 counts 1A 4 to 6V
40 to 399.9 mΩ 100 µΩ ± 0.25% ±2 counts 1A 4 to 6V
400 to 3,999 mΩ 1 µΩ ± 0.25% ±2 counts 100A 4 to 6V
4 to 399.99 mΩ 10 µΩ ± 0.25% ±2 counts 10mA 4 to 6V
40 to 3999.9 mΩ 100 µΩ ± 0.25% ±2 counts 10mA 4 to 6V
GENERAL SPECIFICATIONS:
Connection: 4 screw terminals 4mm in diameter
Automatic power-off
Power supply: NiMH rechargeable battery
Dimensions: 273 x 247 x 280 mm
Leakproofing: IP53
Data: optical / USB link
Electrical safety: IEC 61010-1 / CAT III 50V
Weight: 5kg
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