Fluke 374 FC User Manual
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Fluke 374 FC User Manual

Clamp meter
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374 FC/375 FC/376 FC
99 Washington Street
Melrose, MA 02176
800.517.8431
TestEquipmentDepot.com
PN 4705494
September 2015
© 2015 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke 374 FC

  • Page 1 374 FC/375 FC/376 FC Clamp Meter 99 Washington Street Melrose, MA 02176 800.517.8431 TestEquipmentDepot.com PN 4705494 September 2015 © 2015 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 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 conditions of operation or handling.

  • Page 3: Table Of Contents

    Table of Contents Title Page Introduction ......................... 1 Contact Fluke ......................2 Safety Information ...................... 3 Replacement Part List ....................9 The Product ........................ 10 Specifications ......................22...
  • Page 4 374 FC/375 FC/376 FC Users Manual...

  • Page 5: Introduction

    The detachable iFlex (Flexible Current Probe) that is included with the 376 FC (optional with the 374 FC and 375 FC) expands the measurement range to 2500 A ac. The Flexible Current Probe provides increased display flexibility and allows measurements of awkward sized conductors and improved wire access.
  • Page 6 374 FC/375 FC/376 FC Users Manual...

  • Page 7: Safety Information

    Clamp Meters Safety Information 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 explained in Table 1. XWWarning To prevent possible electrical shock, fire, or personal injury: •...
  • Page 8 374 FC/375 FC/376 FC Users Manual • Do not exceed the Measurement Category (CAT) rating of the lowest rated individual component of a Product, probe, or accessory. • Comply with local and national safety codes. Use personal protective equipment (approved rubber gloves, face protection, and flame-resistant clothes) to prevent shock and arc blast injury where hazardous live conductors are exposed.
  • Page 9 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 without the protective cap of test probe, The protective cap decreases the expose probe metal <...
  • Page 10 374 FC/375 FC/376 FC Users Manual For safe operation and maintenance of the Product: • Repair the Product before use if the battery leaks. • Have an approved technician repair the Product. WCaution To avoid possible damage to the Product or to equipment under test: •...
  • Page 11 Clamp Meters Safety Information Table 1. Symbols Symbol Meaning Symbol Meaning   AC (Alternating Current) Earth WARNING. HAZARDOUS VOLTAGE.  DC (Direct Current) Risk of electric shock. Conforms to European Union WARNING. RISK OF DANGER. directives. Battery. Low battery when shown on ...
  • Page 12 374 FC/375 FC/376 FC Users Manual Table 1. Symbols (Cont.) Symbol Meaning Symbol Meaning Measurement Category III is Measurement Category IV is applicable to test and measuring applicable to test and measuring circuits connected to the distribution circuits connected at the source of ...

  • Page 13: Replacement Part List

    Clamp Meters Replacement Part List Replacement Part List Table 2 lists the available replacement parts. Table 2. Replacement Parts Item Qty. Fluke Part or Model Number Battery, AA 1.5 V 376756 Battery Door Assembly 4696918 Test lead set TL75 Flexible current probe i2500-10...

  • Page 14: The Product

    374 FC/375 FC/376 FC Users Manual The Product Clamp Meter fig01.eps...
  • Page 15 Clamp Meters The Product Auto Power Off Backlight fig02_3.eps...
  • Page 16 374 FC/375 FC/376 FC Users Manual Display Hold MIN MAX AVG 2 sec = Exit fig04_5.eps...
  • Page 17 Clamp Meters The Product Clear Memory (375 FC and 376 FC) (375 FC and 376 FC) + ON + 2 sec = LOG 5 sec fig_16.eps...
  • Page 18 374 FC/375 FC/376 FC Users Manual Flexible Current Probe <0.5 A >0.5 A fig06.eps...
  • Page 19 Clamp Meters The Product (375 FC & 376 FC) > 5 A > 20 A <0.5 A >0.5 A fig07.eps...
  • Page 20 374 FC/375 FC/376 FC Users Manual <0.5 A >0.5 A Fig08.eps...
  • Page 21 Clamp Meters The Product mV dc (375 FC & 376 FC) fig09_10.eps...
  • Page 22 374 FC/375 FC/376 FC Users Manual <30 Fig15.eps...
  • Page 23 Clamp Meters The Product 100 ms fig13_14.eps...
  • Page 24 374 FC/375 FC/376 FC Users Manual fig11_12.eps...
  • Page 25 Clamp Meters The Product ® FC Module Fluke Connect Bluetooth Connection to FC Tools SAVE Fluke Connect Connect SAVE CAPTURE flukeconnect.eps...

  • Page 26: Specifications

    374 FC/375 FC/376 FC Users Manual 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 ......-40 °C to +60 °C Operating Humidity .........
  • Page 27 Clamp Meters Specifications 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 Intrusion Protection (IP) Rating ....IEC 60529: IP30 Radio Frequency Certification ....FCC ID:T68-FBLE IC:6627A-FBLE Wireless Radio Frequency Range ..
  • Page 28 Crest Factor (50 Hz/60 Hz) 376 FC ..........3 @ 500 A 2.5 @ 600 A 1.42 @ 1000 A 374 FC and 375 FC ......2.5 @ 350 A 1.42 @ 600 A Note: Add 2 % for C.F. >2...
  • Page 29 Clamp Meters Specifications AC Current via Flexible Current Probe Range ............ 2500 A Resolution ..........0.1 A (≤999.9 A) 1 A (≤2500 A) Accuracy ..........3 % ±5 digits (5 to 500 Hz) Crest Factor (50 Hz/60 Hz) ..... 3.0 @ 1100 A 2.5 @ 1400 A 1.42 @ 2500 A Add 2 % for C.F.
  • Page 30 374 FC/375 FC/376 FC Users Manual Position Sensitivity ghn12.eps Figure 1. Position Sensitivity...
  • Page 31 Measurement uncertainty assumes centralized primary conductor at optimum position, no external electrical or magnetic field, and within operating temperature range. DC Current Range 374 FC and 375 FC ......600.0 A 376 FC ..........999.9 A Resolution ..........0.1 A Accuracy ..........2 % ±5 digits...
  • Page 32 374 FC/375 FC/376 FC Users Manual AC Voltage Range ............. 1000 V Resolution ..........0.1 V (≤600.0 V) 1 V (≤1000 V) Accuracy ..........1.5 % ±5 digits (20 Hz to 500 Hz) DC Voltage Range ............. 1000 V Resolution ..........0.1 V (≤600.0 V) 1 V (≤1000 V)
  • Page 33 Clamp Meters Specifications 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 ........... 5 Hz to 10 Hz, ≥10 A 10 Hz to 100 Hz, ≥5 A 100 Hz to 500 Hz, ≥10 A Frequency via Flexible Current Probe Range...
  • Page 34 Range 374 FC ..........6000 Ω 375 FC and 376 FC ......60 kΩ Resolution 374 FC ..........0.1 Ω (≤600 Ω) 1 Ω (≤6000 Ω) 375 FC and 376 FC ......0.1 Ω (≤600 Ω) 1 Ω (≤6000 Ω) 10 Ω...

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