MAGNETIC FIELD HiTESTER FT3470-52 HIOKI

Description

Tailored Bandwidths for Precise Measurement

This sophisticated magnetic field meter offers exceptional flexibility through its selectable bandwidth ranges: 10 Hz to 400 kHz, 10 Hz to 2 kHz, and 2 kHz to 400 kHz. This feature is vital as different sources generate magnetic fields across varying frequencies. The 10 Hz to 2 kHz setting is ideal for assessing extremely low-frequency (ELF) fields, commonly found around power distribution systems, household appliances, and large industrial motors. Conversely, the 2 kHz to 400 kHz range targets intermediate and radio frequency fields, prevalent in applications such as induction heating, arc welding, and certain medical devices. The broad 10 Hz to 400 kHz mode provides a comprehensive overview, making the meter adaptable for diverse electromagnetic compatibility (EMC) testing, research, and occupational safety assessments across a multitude of industries.

Assessing Exposure for Public and Occupational Safety

A standout feature of this meter is its ability to measure exposure levels, differentiating between General Public and Occupational settings. This distinction is crucial because regulatory guidelines for magnetic field exposure vary significantly depending on the population being assessed. For instance, the general public, including children and individuals with medical implants, requires more stringent protection. Conversely, occupational workers might be exposed to higher levels for limited durations under controlled conditions. By presenting exposure as a percentage relative to established limits, the meter simplifies the complex process of compliance verification. This capability is indispensable for health and safety managers ensuring a safe working environment, and for engineers designing systems that adhere to international electromagnetic compatibility standards.

Intuitive Display for Comprehensive Data

The device features a clear and intuitive display, providing a wealth of information at a glance. Users can view single-axis readings (X, Y, Z), each with 2000 counts, offering detailed insights into the directional components of the magnetic field. More importantly, it calculates and displays the Composite RMS value (R), with 3464 counts, which represents the overall strength of the magnetic field regardless of its spatial orientation. Magnetic flux density is displayed in conventional units such as Tesla (T), Gauss (G), and Amperes per meter (A/m), catering to different industry preferences. Furthermore, the exposure level is clearly shown as a percentage, allowing for quick assessment against safety thresholds. This multi-faceted display ensures that even complex magnetic field data is presented in an easily understandable format.

Precision in Magnetic Flux Density Measurement

Accuracy is paramount when dealing with invisible phenomena like magnetic fields. This meter offers exceptional precision in magnetic flux density measurements. For the individual X, Y, and Z axes, the effective measuring ranges span from 2.000 µT to 2.000 mT, categorized across four distinct ranges to ensure optimal resolution. The specified accuracy for these readings is ±3.5% rdg. ±0.5% f.s. (reading plus full scale). Similarly, for the composite RMS (R) axis, effective measuring ranges extend from 3.464 µT to 3.464 mT, also across four ranges, with the same high level of accuracy. The meter also provides specific valid measurement frequency ranges for each bandwidth mode, ensuring that measurements are accurate within the relevant frequency spectrums for various applications, from power frequency analysis to higher frequency industrial monitoring.

Accurate Exposure Level and Wide Application

Beyond raw field strength, the meter’s ability to precisely measure exposure levels is a cornerstone of its utility. For the X, Y, and Z axes, effective measuring ranges for exposure are 20.00% to 200.0%, covered by two ranges. For the composite RMS (R) axis, ranges are 34.64% to 346.4%, also across two ranges. The accuracy of exposure level readings is finely tuned, with ±3.5% rdg. ±0.5% f.s. for smoothed edges from 50 Hz to 1 kHz, and ±5.0% rdg. ±0.5% f.s. for smoothed edges from 1 kHz to 100 kHz.

Specific Applications: This meter is invaluable in numerous fields:

• Industrial Safety: Assessing electromagnetic fields around heavy machinery, induction furnaces, welding equipment, and power transformers to ensure worker safety.
• Electrical Utility: Measuring fields around power lines, substations, and electrical equipment for compliance with safety standards and public concerns.
• Research & Development: Characterizing electromagnetic environments in laboratories for sensitive equipment testing or biological studies.
• Medical Facilities: Ensuring low magnetic field levels around MRI machines, therapeutic devices, and patient areas to prevent interference or adverse effects.
• Telecommunications: Evaluating fields from antennas and broadcasting equipment.
• Residential & Commercial Buildings: Identifying sources of high magnetic fields from wiring, appliances, or infrastructure that might affect occupants.
• Automotive Industry: Testing electromagnetic compatibility of vehicle electronic systems.
• Product Compliance: Verifying that electronic products meet international standards for electromagnetic emissions.

Versatile Interfaces for Data Management

The magnetic field meter is equipped with essential interfaces that streamline data management and analysis. It offers supporting outputs for the resultant RMS level, the calculated exposure level, and waveform output for each of the magnetic flux density axes (X, Y, Z). The output rate of 0.1 mV/display value count ensures that detailed data can be captured for in-depth analysis. Critically, the inclusion of a USB 1.1 interface facilitates seamless data saving with a dedicated PC application. This connectivity is a game-changer for professionals, allowing for long-term data logging, trend analysis, report generation, and integration with other data sets. The bundled DATA VIEWER for FT3470 software for Windows environments (7, Vista, XP) allows for batch saving of RMS value data in CSV format, enabling comprehensive post-measurement processing and archiving.

Power, Portability, and Convenient Functionality

Designed for fieldwork and extended use, the magnetic field meter offers reliable power supply and high portability. It operates on four LR6 (AA) alkaline batteries, providing an impressive 10 hours of continuous use, ensuring it’s ready for prolonged measurement tasks. For stationary applications or extended analysis, it can also be powered by an optional AC adapter 9445-02. The main unit is remarkably compact, measuring 100 mm W × 150 mm H × 42 mm D and weighing only 830 g (including batteries), making it easy to carry and manipulate in tight spaces. It comes with both a 100 cm² sensor and a smaller 3 cm² sensor, offering flexibility for different measurement scenarios. Additional practical functions include a memory feature to store up to 99 measured data points, a slow function for capturing gradual changes, a maximum value hold feature, auto power off for battery conservation, and a buzzer sound on/off option for user preference. All these features underscore its practical design for professional use.