Description
Fluke 374 TrueRMS AC/DC Clamp Meter Specifications
Electrical Measurements
-
**AC Current (via jaw clamp)**
Range: up to 600.0A
Resolution: 0.1A
Accuracy: 2% 5 digits (10100Hz), 2.5% 5 digits (100500Hz)
Crest Factor: up to 2.5 at 600A; add 2% for crest factor>2 -
AC Current (via optional iFlex flexible probe)
Range: up to 2500A
Resolution: 0.1A ( 600A), 1A ( 2500A)
Accuracy: 3% 5 digits (5500Hz)
Crest Factor: up to 3.0 at 1400A; add 2% for crest factor>2 -
Position Sensitivity (iFlex probe)
Accuracy declines slightly when conductor is off-center (up to 2% error depending on offset distances) -
DC Current (jaw)
Range: up to 600.0A
Resolution: 0.1A
Accuracy: 2% 5 digits -
AC Voltage
Range: up to 1000V
Resolution: 0.1V ( 600V), 1V ( 1000V)
Accuracy: 1.5% 5 digits (20500Hz) -
DC Voltage
Range: up to 1000V
Resolution: 0.1V ( 600V), 1V ( 1000V)
Accuracy: 1% 5 digits -
mV DC Input
Range: up to 500.0mV
Resolution: 0.1mV
Accuracy: 1% 5 digits -
Resistance
Range: up to 6000
Resolution: 0.1 ( 600), 1 ( 6000)
Accuracy: 1% 5 digits -
Capacitance
Range: up to 1000F
Resolution: 0.1F ( 100F), 1F ( 1000F)
Accuracy: 1% 4 digits -
Frequency (using clamp)
Range: 5.0500.0Hz
Resolution: 0.1Hz
Accuracy: 0.5% 5 digits
Minimum trigger current varies by frequency band (e.g. 10A at midrange)
Additional Features
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TrueRMS capability ensures stable readings on non-sinusoidal waveforms
-
Filter mode to improve accuracy on variable-frequency drives (VFDs)
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Inrush current capture records peak motor start-up values
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Min/Max/Average data logging and data hold function
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Ergonomically shaped with a 34mm jaw; optional iFlex probe improves conductor access
Mechanical & Environmental Information
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Dimensions: approx. 2498545mm
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Weight: approx. 395g
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Jaw opening: 34mm
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iFlex probe cable (if used): 1.8m long, 7.5mm diameter
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Operating temperature: 10C to +50C
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Storage temperature: 40C to +60C
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Operating humidity (non-condensing): up to 90% RH at 1030C, 75% at 3040C, 45% at 4050C
-
Altitude limits: operates up to 3000m; storage to 12,000m
-
Safety category ratings:
CAT III 1000V / CAT IV 600V
Pollution degree 2 (per IEC 61010-1 / IEC 610102032) -
Ingress protection: IP30 (when not operating)
Quick Specs Table
| Measurement Type | Range / Resolution | Accuracy |
|---|---|---|
| AC Current (jaw) | up to 600 A / 0.1A | 22.5% 5 digits |
| AC Current (iFlex) | up to 2500 A / 0.11A | 3% 5 digits |
| DC Current (jaw) | up to 600 A / 0.1A | 2% 5 digits |
| AC Voltage | up to 1000 V / 0.11V | 1.5% 5 digits |
| DC Voltage | up to 1000 V / 0.11V | 1% 5 digits |
| mV DC Input | up to 500 mV / 0.1mV | 1% 5 digits |
| Resistance | up to 6000 / 0.11 | 1% 5 digits |
| Capacitance | up to 1000F / 0.11F | 1% 4 digits |
| Frequency (clamp) | 5500Hz / 0.1Hz | 0.5% 5 digits |









