счастливая случайность 378 FC Non-Contact True-RMS Clamp Meter with PQ Power Quality Screening

Troubleshooting of industrial control, motors and inverter power distribution, plus harmonic screening and three-phase testing. It shares identical hardware with the 377 ФК, while the 378 FC exclusively features PQ power quality indication.

Core Technology: FieldSense™ Electric Field Sensing Technology. No physical contact between the clamp jaw and live conductors. Simply connect a ground lead to measure voltage and current simultaneously, greatly reducing electric shock risks.

Ключевые характеристики

Рейтинг безопасности: CAT III 1000 В / CAT IV 600 В

Clamp Jaw AC Current: 0～999.9 A, разрешение 0.1 А; точность 2% ±5 digits (45–66 Hz)

Гибкий зонд iFlex (Standard i2500-18, 1.8 м): AC 0～2500 A, ideal for busbars, compact switchgear and large cables

Постоянное напряжение: 0～1000 V; Напряжение переменного тока: 0～1000 V (direct probe measurement); FieldSense non-contact voltage up to 1000 В

Частотный диапазон: 5 Hz～500 Hz, compatible with inverters, variable-speed motors and UPS systems

Сопротивление: 60 кОм; Емкость: 1000 мкФ; Continuity beep; Inrush startup current capture, MIN/MAX/Average value recording

True-RMS (ТРМС) измерение, designed for non-linear loads such as inverters, servo drives and switching power supplies

Jaw Opening: 34 мм; Вес нетто: 463 г; Источник питания: 2×батарейки АА, battery life 200 часы

Wireless Connectivity: счастливая случайность Connect Bluetooth. Save data, perform automatic three-phase calculations, phase sequence verification and cloud storage via mobile APP

Exclusive Functions (Difference from 377 ФК)

✅ PQ Power Quality Indicator: Automatically detects voltage, current and power factor anomalies under FieldSense mode. Quickly identify whether the fault originates from upstream grid supply or downstream motor/inverter loads (early warning for harmonics, three-phase imbalance and poor power factor)

✅ Automatic Three-Phase Test: Complete three-phase measurement in 3 шаги. The APP automatically calculates line-to-ground, line-to-line voltages, phase sequence and unbalance without manual recording and calculation

✅ Inrush Startup Current: Capture the closing surge current of motors and compressors to diagnose mechanical jamming and faulty starting circuits

Стандартные аксессуары

счастливая случайность 378 FC Clamp Meter Main Unit

i2500-18 iFlex Flexible Current Probe (1.8 м)

TL224 Test Leads, TP175 TwistGuard Test Probes, AC285 Grounding Clip (required for FieldSense function)

TPAK Magnetic Hanging Kit, Hard Carrying Case, Руководство пользователя

Сравнение моделей & Руководство по выбору

377 ФК: Equipped with FieldSense, without PQ power quality screening, focused on safe and fast voltage & current measurement

378 ФК: With PQ harmonic & energy efficiency screening, the top choice for maintenance of inverters, air compressors and fans

376 ФК: Traditional clamp meter, no FieldSense non-contact voltage function, voltage measurement only via test probes

Номер заказа: 5111812 (FLUKE-378 FC)

Типичные применения (Автоматизация / ОВК / Low-Voltage Assemblies)

Harmonic and three-phase current imbalance screening for inverter and servo drive outputs

Measurement of startup current and locked-rotor diagnosis for three-phase motors, воздушные компрессоры, water pumps and fans

High-current testing on low-voltage switchgear, busbars and large cables (2500 A via iFlex probe)

Прогностическое обслуживание, power quality pre-screening and fault location (grid side vs equipment side)

Commissioning and phase sequence verification for star-delta and soft-start circuits

Ограничения & Примечания

FieldSense mode requires reliable grounding. Poor grounding will cause inaccurate voltage readings; only works on single-phase conductors
The PQ function is only a screening indicator, providing pass/alarm alerts only. It cannot replace professional power quality analyzers (Fluke 43B / 437-II) for detailed THD harmonic reports
The iFlex flexible probe has a higher minimum measuring current and is not suitable for measuring tens of milliamps small currents
FieldSense cannot be used for DC voltage measurement

Обновление & Альтернативные варианты

Brand Upgrade: Fluke 43B / 437-II Power Quality Analyzer (for detailed harmonic analysis and waveform recording)

Внутренний эквивалент: High-end clamp meters with flexible probes, Bluetooth and harmonic screening (примечание: no FieldSense non-contact voltage function)

Запчасти: Separate i2500-18 probe, TP175 test probes, AC285 grounding clip

Fluke 378FC / 377ФК / 376FC Note

For detailed harmonic reports, fine harmonic waveform recording and transient disturbance testing, you need professional instruments such as the Fluke 43B / 437-II.

If you frequently maintain inverters, three-phase motors and water chillers, and require safe non-contact measurement plus fast power quality troubleshooting, choose the 378 ФК. If you only need non-contact measurement without PQ screening, select the 377 ФК.

FC = Fluke Connect Bluetooth wireless for mobile APP data logging; non-FC models are wired-only versions.

Полный список моделей (Fluke Clamp Meters)

Industrial High-End Series (370 Ряд, TRMS AC/DC + iFlex high-current)

Non-Contact Voltage Models (FieldSense for safer cabinet testing)

377 ФК: Бесконтактное напряжение & current measurement, no PQ harmonic screening

378 ФК (твоя модель): 377 FC plus PQ power quality harmonic screening, preferred for inverters & моторы

Standard Wireless Models (No Non-Contact Voltage)

374 ФК: 600 AC/DC, supports iFlex (flexible probe not included)

375 ФК: Built-in VFD low-pass filter for more accurate inverter measurement (no iFlex included)

376 ФК: 1000 AC/DC, standard with i2500 iFlex probe, Макс 2500 И переменный ток

Remote Detachable Display

381: Separable display for one-person operation in high-altitude and tight spaces, standard with iFlex

Industry-Specific Models
HVAC Special: 902 ФК

For refrigeration, fans and heat pumps, with temperature measurement, CAT IV 300 V rating

PV New Energy Special: 393 ФК

CAT III 1500 V DC rating, designed for PV string DC testing

Leakage Current Meters (Ground Leakage & Neutral Harmonic Current)

368 / 369 ФК: Large jaw micro-amp leakage clamp meters, used for equipment earth leakage and neutral line current testing

Detachable Jaw for Tight Wiring Harnesses: 365

Separate jaw via flexible cable to access dense wiring; 200 A AC/DC true-RMS

General Economy Models (Daily Electrician Inspection)
Ultra-Thin Blade Jaw (narrow wiring): 301A/301C (только переменный ток), 301D/301E (AC+DC)
High Current for Automotive & Энергетические системы: 317, 319 (1000 A AC/DC TRMS)
Heavy-Duty High-Current Industrial Models: 353, 355 (2000 А, for transformers and busbars)
Complete Full Model List