Page 2 - LIMITED WARRANTY AND LIMITATION OF LIABILITY
LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal ...
Page 3 - Table of Contents; Title
i Table of Contents Title Page Introduction ................................................................................................................. 1 Contact Fluke ............................................................................................................. 2 Safety Informa...
Page 4 - Users Manual; ii
Page 5 - Introduction
1 Introduction The Fluke 374 FC/375 FC/376 FC (the Product) measures true-rms ac current and voltage, dc current and voltage, inrush current, resistance, and capacitance. The 375 FC and 376 FC also measure frequency and dc millivolts. The detachable iFlex (Flexible Current Probe) that is included wi...
Page 6 - Contact Fluke; To contact Fluke, call one of the following telephone numbers:
374 FC/375 FC/376 FC Users Manual 2 Contact Fluke To contact Fluke, call one of the following telephone numbers: • Technical Support USA: 1-800-44-FLUKE (1-800-443-5853) • Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853) • Canada: 1-800-36-FLUKE (1-800-363-5853) • Europe: +31 402-675-200 • Ja...
Page 7 - Safety Information
Clamp Meters Safety Information 3 Safety Information A Warning identifies conditions and procedures that are dangerous to the user. A Caution identifies conditions and procedures that can cause damage to the Product or the equipment under test. Symbols used on the Product and in this manual are expl...
Page 8 - repaired as necessary to ensure continued safe operation
374 FC/375 FC/376 FC Users Manual 4 • Prior to use, ensure the Product is clean, dry, and in good repair. Do not use the product if has been exposed to water, cleaning solutions, battery electrolyte leakage, or other contaminants that may have entered the enclosure. These contaminants can reduce or ...
Page 9 - Keep fingers behind the finger guards on the probes.
Clamp Meters Safety Information 5 • De-energize the circuit or wear personal protective equipment in compliance with local requirements before you apply or remove the Flexible Current Probe. • Measure a known voltage first to make sure that the Product operates correctly. • Limit operation to the sp...
Page 10 - Note
374 FC/375 FC/376 FC Users Manual 6 • When batteries are changed, ensure that the calibration seal in the battery compartment is not damaged. If damaged, the Product may not be safe to use. Return the Product to Fluke for replacement of the seal. • Do not use in CAT III or CAT IV environments withou...
Page 11 - Symbol
Clamp Meters Safety Information 7 Table 1. Symbols Symbol Description Symbol Description AC (Alternating Current) Earth DC (Direct Current) WARNING. HAZARDOUS VOLTAGE. Risk of electric shock. Conforms to European Union directives. WARNING. RISK OF DANGER. Consult user documentation. ...
Page 12 - the source of the building’s low-voltage MAINS installation.
374 FC/375 FC/376 FC Users Manual 8 Table 2. Symbols (Cont.) Symbol Meaning Measurement Category II is applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage MAINS installation. Measurement Category III is applica...
Page 13 - Replacement Part List; Table 3. Replacement Parts
Clamp Meters Replacement Part List 9 Replacement Part List Table 3 lists the available replacement parts. Table 3. Replacement Parts Item Qty. Fluke Part or Model Number Battery, AA 1.5 V 2 376756 Battery Door Assembly 1 4696918 Test lead set 1 TL75 Flexible current probe i2500-10 1 3676410 Flexible...
Page 14 - The Product; Clamp Meter
374 FC/375 FC/376 FC Users Manual 10 The Product 1 Clamp Meter fig01.emf
Page 15 - Auto Power Off
Clamp Meters The Product 11 20 ON ON Auto Power Off Backlight fig02_3.emf
Page 16 - Display Hold
374 FC/375 FC/376 FC Users Manual 12 Display Hold MIN MAX AVG 1x = 2x = 3x = 2 sec = Exit fig04_5.emf
Page 17 - LOG
Clamp Meters The Product 13 2 sec = LOG 5 sec + ON + x1 x2 LOG (375 FC and 376 FC) Clear Memory (375 FC and 376 FC) fig_16.emf
Page 18 - Flexible Current Probe
374 FC/375 FC/376 FC Users Manual 14 6 Flexible Current Probe <0.5 A >0.5 A fig06.emf
Page 19 - Jaw
Clamp Meters The Product 15 7 Jaw Hz (375 FC & 376 FC) > 5 A > 20 A <0.5 A >0.5 A fig07.emf
Page 25 - Fluke Connect; Bluetooth
Clamp Meters The Product 21 2 3 5 6 CAPTURE Connect 4 Go to www.flukeconnect.com 1 Fluke Connect TM Bluetooth ® Connection to FC Tools flukeconnect.emf
Page 26 - Specifications; Maximum voltage between
374 FC/375 FC/376 FC Users Manual 22 Specifications Maximum voltage between any Terminal and Earth Ground ............. 1000 V Batteries .................................................. 2 AA, NEDA 15A, IEC LR6 Operating Temperature ........................... -10 ° C to +50 ° C Storage Temperature...
Page 27 - International
Clamp Meters Specifications 23 Safety ...................................................... IEC 61010-1, Pollution Degree 2 IEC 61010-2-032: CAT III 1000V / CAT IV 600V IEC 61010-2-033: CAT III 1000V / CAT IV 600V Ingress Protection (IP) Rating ................. IEC 60529: IP30 Radio Frequency Cert...
Page 28 - C or below 18; AC Current via Jaw; Range
374 FC/375 FC/376 FC Users Manual 24 Temperature Coefficients........................ Add 0.1 x specified accuracy for each degree C above 28 ° C or below 18 ° C AC Current via Jaw Range 374 FC and 375 FC ........................... 600.0 A 376 FC ............................................... 999....
Page 29 - AC Current via Flexible Current Probe
Clamp Meters Specifications 25 AC Current via Flexible Current Probe Range .................................................... 2500 A Resolution ............................................... 0.1 A ( ≤ 999.9 A) 1 A ( ≤ 2500 A) Accuracy ................................................. 3 % ± 5 digi...
Page 30 - Position Sensitivity
374 FC/375 FC/376 FC Users Manual 26 Position Sensitivity ghn12.png Figure 1. Position Sensitivity
Page 31 - Distance from
Clamp Meters Specifications 27 Distance from Optimum i2500-10 Flex i2500-18 Flex Error 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...
Page 32 - AC Voltage; digits
374 FC/375 FC/376 FC Users Manual 28 AC Voltage Range ..................................................... 1000 V Resolution ............................................... 0.1 V ( ≤ 600.0 V) 1 V ( ≤ 1000 V) Accuracy ................................................. 1 % ± 5 digits (20 Hz to 500 Hz)...
Page 33 - Frequency via Jaw; Frequency via Flexible Current Probe
Clamp Meters Specifications 29 Frequency via Jaw Range 375 FC and 376 FC ........................... 5.0 Hz to 500.0 Hz Resolution ............................................... 0.1 Hz Accuracy ................................................. 0.5 % ± 5 digits Trigger Level ...........................
Page 34 - Resistance; Capacitance; digits
374 FC/375 FC/376 FC Users Manual 30 Resistance Range 374 FC ............................................... 6000 Ω 375 FC and 376 FC ........................... 60 k Ω Resolution 374 FC ............................................... 0.1 Ω ( ≤ 600 Ω ) 1 Ω ( ≤ 6000 Ω ) 375 FC and 376 FC ...............
