Tester & Detector
The Fluke 374 True RMS Clamp Meter can read up to 600 V and 600 A in both AC and DC modes. Additionally, the 374 is compatible with the new iFlex flexible current probe (sold separately), which increases the measurement range to 2500 A AC and provides increased display flexibility, and improved wire access.
Specifications: Fluke 374 True RMS AC/DC Clamp Meter
| Electrical Specifications | ||||
| AC Current via Jaw | ||||
| Range | 374 and 375 376 |
600.0 A 999.9 A |
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| Resolution | 0.1 A | |||
| Accuracy | 2% ± 5 digits (10-100 Hz) 2.5% ± 5 digits (100-500 Hz) |
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| Crest Factor (50/60 Hz) | 3 @ 500 A (375 and 376 only) 2.5 @ 600 A 1.42 @1000 A (376 only) Add 2% for C.F. > 2 |
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| AC Current via Flexible Current Probe | ||||
| Range | 2500 A | |||
| Resolution | 374 and 375 | 0.1 A (≤ 600 A) 1 A (≤ 2500 A) |
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| 376 | 0.1 A (≤ 999.9 A) 1 A (≤ 2500 A) |
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| Accuracy | 3% ±5 digits (5 – 500 Hz) | |||
| Crest Factor (50/60Hz) | 3.0 at 1100 A (375 and 376 only) 2.5 at 1400 A 1.42 at 2500 A Add 2% for C.F. > 2 |
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| Distance from Optimum | i2500-10 Flex | i2500-18 Flex | Error | |
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A | 0.5 in (12.7 mm) | 1.4 in (35.6 mm) | ± 0.5% |
| B | 0.8 in (20.3 mm) | 2.0 in (50.8 mm) | ± 1.0% | |
| C | 1.4 in (35.6 mm) | 2.5 in (63.5 mm) | ± 2.0% | |
| Measurement uncertainty assumes centralized primary conductor at optimum position, no external electrical or magnetic field, and within operating temperature range. | ||||
| DC Current | ||||
| Range | 374 and 375 376 |
600.0 A 999.9 A |
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| Resolution | 0.1 A | |||
| Accuracy | 2% ± 5 digits | |||
| AC Voltage | ||||
| Range | 374 and 375 376 |
600.0 V 1000 V |
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| Resolution | 374 and 375 376 |
0.1 V 0.1 V (≤ 600.0 V) 1 V (≤ 1000 V) |
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| Accuracy | 1.5% ± 5 digits (20 – 500 Hz) | |||
| DC Voltage | ||||
| Range | 374 and 375 376 |
600.0 V 1000 V |
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| Resolution | 374 and 375 376 |
0.1 V 0.1 V (≤ 600.0 V) 1 V (≤ 1000 V) |
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| Accuracy | 1% ± 5 digits | |||
| mV dc | ||||
| Range | 375 and 376 | 500.0 mV | ||
| Resolution | 0.1 mV | |||
| Accuracy | 1% ± 5 digits | |||
| Frequency via Jaw | ||||
| Range | 375 and 376 | 5.0 – 500.0 Hz | ||
| Resolution | 0.1 Hz | |||
| Accuracy | 0.5% ± 5 digits | |||
| Trigger Level | 5 – 10 Hz, ≥10 A | |||
| 10 – 100 Hz, ≥5 A | ||||
| 100 – 500 Hz, ≥10 A | ||||
| Frequency via Flexible Current Probe | ||||
| Range | 375 and 376 | 5.0 – 500.0 Hz | ||
| Resolution | 0.1 Hz | |||
| Accuracy | 0.5% ± 5 digits | |||
| Trigger Level | 5 – 20 Hz, ≥ 25 A | |||
| 20 – 100 Hz, ≥ 20 A | ||||
| 100 – 500 Hz, ≥ 25 A | ||||
| Resistance | ||||
| Range | 374 375 and 376 |
6000 Ω 60 kΩ |
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| Resolution | 374 | 0.1 Ω (≤ 600 Ω) 1 Ω (≤ 6000 Ω) |
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| 375 and 376 | 0.1 Ω (≤ 600 Ω) 1 Ω (≤ 6000 Ω) 10 Ω (≤ 60 kΩ) |
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| Accuracy | 1% ± 5 digits | |||
| Capacitance | ||||
| Range | 1000 μF | |||
| Resolution | 0.1 μF (≤ 100 μF) 1 μ F (≤ 1000 μF) |
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| Accuracy | 1% ± 4 digits | |||
| Mechanical Specifications | ||||
| Size (L x W x H) | 246 mm x 83 m x 43 mm | |||
| Weight | 388 g | |||
| Jaw Opening | 34 mm | |||
| Flexible Current Probe Diameter | 7.5 mm | |||
| Flexible Current Probe Cable Length (head to electronics connector) |
1.8 m | |||
| Environmental Specifications | ||||
| Operating Temperature | 10°C – +50°C | |||
| Storage Temp | -40°C – +60°C | |||
| Operating Humidity | Non condensing (< 10 –°C) ≤ 90% RH (at 10°C – 30°C) ≤ 75% RH (at 30°C – 40°C) ≤ 45% RH (at 40°C – 50°C) |
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| Operating Altitude | 3000 meters | |||
| Storage Altitude | 12,000 meters | |||
| EMC | EN 61326-1:2006 | |||
| Temperature Coefficients | Add 0.1 x specified accuracy for each degree C above 28°C or below 18°C |
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| Safety Specifications | ||||
| Safety Compliance | CAN/CSA-C22.2 No. 61010-1-04 ANSI/UL 61010-1:2004 ANSI/ISA-61010-1 (82.02.01):2004 EN/IEC 61010-1:2001 to 1000V Measurement Category (CAT) III 600V Measurement Category (CAT) IV Pollution Degree 2 EN/IEC 61010-2-032:2002 EN/IEC 61010-031:2002+A1:2008 |
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