Ampe kìm đo điện trở đất Kyoritsu 4200, K4200
Mã sản phẩm: 4200
Giá bán : Liên hệ
Hãng sản xuất: Kyoritsu - Nhật
Bảo hành: 12 tháng
Xuất xứ: Còn hàng
Chia sẻ sản phẩm này với bạn bè:
THÔNG SỐ KỸ THUẬT:
Đo điện trở đất
+ Giải đo : 20Ω/200Ω/1200Ω
+ Độ phân giải : 0.01Ω/0.1Ω/1Ω/10Ω
+ Độ chính xác : ±1.5%±0.05Ω/±2%±0.5Ω/|±3%±2Ω/±5%±5Ω/|±10%±10Ω
Đo dòng AC
+ Giải đo : 100mA/1A/10A/30A
+ Độ phân giải : 0.1mA/1mA/0.01A/0.1A
+ Độ chính xác : ±2%
Thời gian phản hồi : 7s (Đo đất) và 2s ( Đo dòng)
Lấy mẫu : 1 times
Tự động tắt nguồn, thời gian đo khoảng 12h đến 24h liên tục
Đường kính kìm : 32mm max.
Kích thước : 246(L) × 120(W) × 54(D)mm
Khối lượng : 780g
Phụ kiện : Pin, hộp đựng, hướng dẫn sử dụng
Bảo hành : 12 tháng
Hãng sản xuất : Kyoritsu - Nhật
Xuất xứ : Nhật
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The earth resistance from 0.05 to 1200Ω can be measured without the auxiliary earth spikes.
(The Multiple Earthing System.) |
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True RMS
Accurate true RMS readings of AC current including distorted waveform from 1mA to 30.0A |
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Noise Check Function
A function to detect current, which effects on an earth resistance measurement and display "NOISE" mark on the LCD. |
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Memory function
Save and display up to 100 measurement data. |
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Data hold function / Buzzer function / Back light function |
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Compliant with Safety Standards of IEC 61010-1 : CAT.IV 300V Pollution degree2 |
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Note:
A single earthing can not be measured. (Only for Multiple Earthing System) |
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Function |
Range |
Resolution |
Measuring range |
Accuracy |
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Earth resistance Auto range |
20Ω |
0.01Ω* |
0.00~20.99Ω |
|±1.5%±0.05Ω |
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200Ω |
0.1Ω |
16.0~99.9Ω |
|±2%±0.5Ω |
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100.0~209.9Ω |
|±3%±2Ω |
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1200Ω |
1Ω |
160~399Ω |
|±5%±5Ω |
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400~599Ω |
|±10%±10Ω |
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10Ω |
600~1260Ω |
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AC current
(50Hz / 60Hz)
Auto range |
100mA |
0.1mA |
0.0~104.9mA |
|±2%±0.7mA |
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1000mA |
1mA |
80~1049mA |
|±2% |
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10A |
0.01A |
0.80~10.49A |
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30A |
0.1A |
8.0~31.5A |
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Operating system |
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Earth resistance function : |
Constant voltage injection,
Current detection,
(Frequency : Approx.2400Hz)
Dual Integration |
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AC current function : |
Successive Approximation |
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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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Power source |
DC6V : R6P (sizeAA manganese battery) × 4pcs,
or LR6 (sizeAA alkaline battery) × 4pcs |
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Current consumption |
Approx. 50mA (max. 100mA) |
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Measurement time |
Approx. 12 hours (when R6P is used)
Approx. 24 hours (when LR6 is used) |
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Auto power-off |
Turns power off about 10 minutes after the last button operation. |
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Applicable standards |
IEC 61010-1 : 2001 (CAT.IV 300V Pollution degree2) |
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Withstand voltage |
AC5320Vrms / 5 seconds
Between the Transformer jaws fitted parts and Case enclosure
(except for jaws) |
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Conductor size |
Approx. 32mm max. |
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Dimension |
246(L) × 120(W) × 54(D)mm |
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Weight |
Approx. 780g (including batteries) |
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Accessories |
Battery R6P : 4pcs Instruction manual : 1pc
8304 (Resister for operation check : 1pc)
9128 (Hard case : 1pc) |
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•Crest factor < 3 (50Hz / 60Hz, peak value shall not exceed 60A)
*4 counts or less are corrected to 0. |
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Why earth resistance can be found by only clamping it? |
Rx, is defined as earth resistance under test, and R1, R2...Rn are defined as earth resistance of other measuring objects. |
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These earth resistances, R1, R2, Rn can be considered that they are connected in parallel.
And they can be regarded as a combined resistance Rs. The Rs can be regarded small enough against Rx since a combined resistance consists of several resistances. Following is an equivalent circuit diagram of this circuit. |
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Voltage V is applied to the object (Resistance Rx) measured from the voltage injection transformer CT1, and the current I corresponding to the earth resistance is flowed.
The current I is detected with detection transformer CT2, and object (Resistance Rx) measured can be put out by the calculation. (refer to the right diagram) |
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Cataloge 
Manual 
Xin vui lòng liên hệ để được hỗ trợ tốt nhất
Công ty cổ phần thiết bị điện Hoàng Phương
Địa chỉ: Số 19, ngõ 44, phố Võ Thị Sáu , P.Thanh Nhàn , Q.Hai Bà Trưng , TP Hà Nôi.
Tel/ 04.3215.1322 / Fax: 04.3215.1323
Phone: 0944.240.317
Email1 : kinhdoanh1.hpe@gmail.com
Email2 : kinhdoanh2.hpe@gmail.com
