Mong muốn tìm được 1 sản phẩm phù hợp là điều không hề dễ, nhất là với những loại máy móc có thông số kỹ thuật khác nhau. Đến với bài viết này chúng tôi sẽ giới thiệu đến quý khách hàng dòng sản phẩm
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Cầu đo điện trở 1 chiều MMR-620 & MMR-630
Measurement of resistive bject type

- welded and soldered connections, equipotential bonding, earth wire,

- terminals and connectors, rail welded joints, cables and wires,

- measurement 4-pole method.

Measurement of inductive bject type:

- coils (motors and transformers), low resistance coils.

Range selection autoranging or manual (m ement of inductive

bject type).

Selectable measurement mode adjusted to object type:

- for resistive objects - fast mode (3 seconds),

- for inductive objects - long mode with automatic discharge after measurements

(or with lower accuracy - shorter mode).

Selectable measurement mode adjusted to application:

- normal mode - after pushing „START” button,

- automatic mode - as test leads are connected to the object meters

automatically starts measurement with dual direction current flow and gives

average result - what eliminates eventual DC voltage on tested object,

- continuous mode - every 3 seconds for resistive objects or continuous

measurement for inductive objects.

Window mode:

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- this option enables setting an upper and a lower limit between which the

average measurement result is bound to appear. The results outside of this

range will be indicated by two long audible signals and the symbols.

MMR-630 is designated not to be effected by interference up to 20mV and

to show noises from 20 to 100mV (so in edge conditions even 5 times

higher than measured drop of potential).

of 990 measurement results and with ability to transfer data to a PC

Electric security:

- EN 61010-1 and IEC 61557

- measurement category CAT III 300V acc. to EN 61010-1

- protection class acc. to EN 60529 IP54

Other technical data:

- meter’s power supply battery package SONEL/Ni-MH 4,8V

- battery charging time approx. 2,5 hours

- number of measurements with the current of 10A 300

- auto-off time 120 seconds

- immunity to interference additional error 1% for voltage 50 Hz 100mV RMS

- maximum leads resistance for the 10A current 0,1Ω

- maximum inductance of the tested object 40H

- accuracy of the test current ±10%

- resistance measurement time:

- with the selected resistive object type with the bidirectional current 3 seconds

- with the selected inductive object type, dependant on the resistance

and inductance of the object a few minutes (max. 10)

- dimensions 295 x 222 x 95 mm

- weight approx. 1,7 kg

Cầu đo điện trở 1 chiều MMR-620 & MMR-630 (thông số chi tiết)
Resistance measurement

MMR-620 Current Voltage for the Accuracy

Range Resolution full scale

0...999μΩ 1μΩ 10A 20mV ±(0,25% m.v. + 2 digits)

1,000...1,999mΩ 0,001mΩ 10A 20mV ±(0,25% m.v. + 2 digits)

2,00...19,99mΩ 0,01mΩ 10A 200mV ±(0,25% m.v. + 2 digits)

20,0...199,9mΩ 0,1mΩ 1A 200mV ±(0,25% m.v. + 2 digits)

200...999mΩ 1mΩ 0, 1A 200mV ±(0,25% m.v. + 2 digits)

1,000...1,999Ω 0,001Ω 0,1A 200mV ±(0,25% m.v. + 2 digits)

2,00...19,99Ω 0,01Ω 10mA 200mV ±(0,25% m.v. + 2 digits)

20,0...199,9Ω 0,1Ω 1mA 200mV ±(0,25% m.v. + 2 digits)

XXXΩ 1Ω 0,1mA 200mV ±(0,25% m.v. + 2 digits)

MMR-630 Current Voltage for the Accuracy

Range Resolution full scale

0...999,9μΩ 1μΩ 10A 20mV ±(0,25% m.v. + 2 digits)

1,0000...1,9999mΩ 0,001mΩ 10A 20mV ±(0,25% m.v. + 2 digits)

2,000...19,999mΩ 0,01mΩ 10A 200mV ±(0,25% m.v. + 2 digits)

20,00...199,99mΩ 0,1mΩ 1A 200mV ±(0,25% m.v. + 2 digits)

200,0...999,9mΩ 1mΩ 0, 1A 200mV ±(0,25% m.v. + 2 digits)

1,0000...1,9999Ω 0,001Ω 0,1A 200mV ±(0,25% m.v. + 2 digits)

2,000...19,999Ω 0,01Ω 10mA 200mV ±(0,25% m.v. + 2 digits)

20,00...199,99Ω 0,1Ω 1mA 200mV ±(0,25% m.v. + 2 digits)

200,0...1999,9Ω 1Ω 0,1mA 200mV ±(0,25% m.v. + 2 digits)

„m.v.” - measured value.

- input impedance of the voltmeter: 200kΩ ≥
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