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Fluke 374 True RMS AC Clamp Meter 

Feature

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.

Specs

 

Electrical Specifications

AC Current via Jaw

Range 374 and 375
376
600.0 A
999.9 A
Resolution 0.1 A
Accuracy 2% ± 5 digits (10-100 Hz)
2.5% ± 5 digits (100-500 Hz)
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

AC Current via Flexible Current Probe

Range 2500 A
Resolution 374 and 375 0.1 A (≤ 600 A)
1 A (≤ 2500 A)
376 0.1 A (≤ 999.9 A)
1 A (≤ 2500 A)
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
Distance from Optimum i2500-10 Flex i2500-18 Flex Error
Flexible current probe 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
Resolution 0.1 A
Accuracy 2% ± 5 digits

AC Voltage

Range 374 and 375
376
600.0 V
1000 V
Resolution 374 and 375
376
0.1 V
0.1 V (≤ 600.0 V)
1 V (≤ 1000 V)
Accuracy 1.5% ± 5 digits (20 – 500 Hz)

DC Voltage

Range 374 and 375
376
600.0 V
1000 V
Resolution 374 and 375
376
0.1 V
0.1 V (≤ 600.0 V)
1 V (≤ 1000 V)
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
Resolution 374 0.1 Ω (≤ 600 Ω)
1 Ω (≤ 6000 Ω)
375 and 376 0.1 Ω (≤ 600 Ω)
1 Ω (≤ 6000 Ω)
10 Ω (≤ 60 kΩ)
Accuracy 1% ± 5 digits

Capacitance

Range 1000 μF
Resolution 0.1 μF (≤ 100 μF)
1 μ F (≤ 1000 μF)
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)
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

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
Batteries 2 AA, NEDA 15A, IEC LR6

 

For complete specs please download the product datasheet

Models

Model Name Consist of Price
FLUKE 374
  • Fluke 374 Clamp Meter
  • Coated instruction card
  • Safety information sheet
  • Soft carrying case
  • TL75 test leads
  • Two AA Alkaline batteries

 

 

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