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| A40B 시리즈 정밀급 Current Shunt |
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DC & AC 전류 측정을 위한 정밀급 낮은 인덕턴스 션트
A40B 정밀급 전류 션트 세트는 14개의 인덕턴스 동축 션트, 어덥터와 커넥터, 견고한 전달/저장케이스로 구성되어있습니다. 1mA에서 100A 범위로, 전류 션트의 절대 ac & dc 송전 측정과 같이, 직접적으로 절대 ac & dc 전류 측정 하는 연구실에서 유용하게 사용 하실 수 있습니다.
이 제품은 뛰어난 안정성 있는 저항 값과 훌륭한 자기발열 전력 상수 및 낮은 온도 상수를 자랑합니다. 이런 모든 기능에 더불어, dc 전류에서부터 높은 정확도의 100kHz를 지원하는 등 이전 보다 좀 더 낳은 기술을 제공하고 있습니다. 이제는 기존에 사용하였던 복잡한 사용 방법 보다 하나의 과정으로 더 정확한 측정을 하실 수가 있습니다.
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Absolute accuracy
The following table shows the 1-year absolute accuracy specification stated at k=2, approximately 95 % confidence for the calibrated value. The specifications include 1-year stability, temperature effects over TCal ± 1 °C, and the measurement uncertainty of the calibrated value. |
Shunt Nominal Current: |
Specification ± μA/A, TCal ±1 °C, ≤ 50 % RH 1,2,3,5 |
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DC |
1 kHz |
100 kHz |
1 mA |
20 |
150 |
150 |
10 mA |
20 |
26 |
20 |
20 mA |
20 |
26 |
26 |
50 mA |
20 |
23 |
23 |
100 mA |
20 |
24 |
24 |
200 mA |
20 |
26 |
26 |
500 mA |
21 |
27 |
28 |
1 A |
21 |
27 |
31 |
2 A |
21 |
27 |
48 |
5 A |
21 |
31 |
71 |
10 A |
26 |
37 |
92 |
20 A |
26 |
43 |
113 |
50 A |
32 |
55 |
144 |
100 A |
35 |
65 |
174 |
1 The measured current is determined from: I = (V/Rcalibrated) × (1 + (AC-DCcalibrated/1,000,000)); where AC-DC calibrated is expressed in ppm. 2 Above 1 kHz interpolate the specification (si) between frequencies fupper and flower using: si = slower + (fi – flower) × (supper – slower) ÷ (fupper – flower) 3 Add 20 μA/A if relative humidity is outside specification limits. 4 1 mA specifications apply with the battery charger disconnected. 5 Specifications assume no loading effects due to the voltage-sensing device. See Output Voltage Measurement – Loading Effects in the operating information. |
Maximum AC-DC Difference
Shunt Nominal Current: |
Maximum AC-DC Difference (± ppm)1,2 |
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1 kHz |
100 kHz |
1 mA |
53 |
150 |
10 mA |
20 |
40 |
20 mA |
18 |
30 |
50 mA |
13 |
16 |
100 mA |
14 |
27 |
200 mA |
17 |
28 |
500 mA |
17 |
21 |
1 A |
17 |
23 |
2 A |
17 |
44 |
5 A |
23 |
69 |
10 A |
28 |
98 |
20 A |
37 |
150 |
50 A |
47 |
180 |
100 A |
60 |
300 |
1 Specifications indicate the maximum flatness deviation from dc, and include both measured AC-DC difference and the uncertainty of measurement. They are stated at k=2, approximately 95 % confidence. 2 Includes 1-year stability of the AC-DC difference. 3 Specifications for the 1 mA current shunt are for TCal ± 1 °C. |
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General Specifications |
Dimensions (maximum) |
Shunt Value: |
1 mA to 2 A |
Height: |
70 mm (2.75 in) |
Width: |
70 mm (2.75 in) |
Overall Length1: |
124 mm (4.9 in) |
Shunt Value: |
5 A to 20 A |
Height: |
130 mm (5 in) |
Width: |
130 mm (5 in) |
Overall Length1: |
210 mm (8.25 in)) |
Shunt Value: |
50 A and 100 A |
Height: |
200 mm (7.9 in) |
Width: |
200 mm (7.9 in) |
Overall Length1: |
343 mm (13.5 in)) |
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1 Includes input and output connectors; subject to change by component vendor. |
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Physical/mechanical parameters |
Shunt Value: |
1 mA to 20 A |
Weight: |
0.7 kg (1.6 lb) |
Input Connector: |
Type-N (female) |
Output Connector: |
Type-N (female) |
Shunt Value: |
50 A and 100 A |
Weight: |
3.4 kg (7.5 lb) |
Input Connector: |
Type-LC (female) |
Output Connector: |
Type-N (female) |
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Operating environment |
Temperature: |
13 °C to 33 °C |
Calibration temperature (TCal) range: |
18 °C to 28 °C |
Humidity range for best specification 1,2: |
≤ 50 % RH |
Altitude: |
0 m to 3,000 m |
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1 Resistance stability is affected by humidity, but changes are reversible. 2 If the shunts are calibrated outside this RH, stability specifications will be met as long as the shunts are stored and used at the same relative humidity ± 10 % RH. |
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Storage and transit environments (for models other than the 1 mA current shunt) |
Temperature to avoid damage: |
-20 °C to 140 °C |
Temperature and humidity to maintain performance1: |
5 °C to 45 °C; 15 % to 80 % RH |
Non-operating altitude: |
0 m to 12,000 m |
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1 Storage at extremes of temperature or humidity will cause a temporary change of shunt resistance by up to ± 20 ppm. When subsequently stored or used within the limits of the operating environment, the shunts will recover to their original resistance value within 30 days. |
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Additional 1 mA current shunt specifications |
Output resistance |
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Maximum safe output current |
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11 mA (e.g., 1 V output into 90 Ω) |
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Maximum capacitive load |
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Output voltage regulation |
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Maximum output dc v offset |
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± 100 μV (typical ± 25 μV) |
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Typical error @ 1 MHz |
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Battery specifications |
Battery size |
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Battery technology |
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Nickel-Metal Hydride (NiMH) |
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Number of batteries required |
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Nominal battery voltage |
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1.2 V (4.8 V per group of 4) |
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Typical battery capacity |
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Storage and transit environment to preserve the batteries |
Less than 90 days: |
-20 °C to 40 °C |
Less than one year: |
-20 °C to 30 °C |
Charging time (from fully discharged): |
100 minutes |
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Maximum operating time between charges |
Maximum output load (11 mA): |
18 hours |
High impedance load: |
24 hours |
Recommended cooling period: |
100 minutes |
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To prevent loss of battery capacity recharge at least twice per year. |
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