Gigahertz-Solutions ME3840B Handheld RF Meter 5 Hz - 100 KHz

Further details of Gigahertz-Solutions ME3840B Handheld RF Meter 5 Hz - 100 KHz

The Gigahertz Solutions ME3840B low-frequency analyser is designed for measuring electric and magnetic LF alternating fields. In addition to its 5 Hz-100 kHz frequency range, it features an internal switchable frequency filter for separating individual frequencies and frequency bands.

Gigahertz Solutions ME3840B measurement characteristics

• Frequency range: 5 Hz-100 kHz, compensated, better than -2 dB
• Magnetic flux density measurement range, one-dimensional: 1-1999 nT
• Electric field strength measurement range: 1-1999 V/m
• Precision: +/- 2%, +/- 14 digits at 50/60 Hz
• Signal rating: RMS
• E-field sensor for electric LF alternating fields
• H-field sensor for magnetic LF alternating fields, one-dimensional
• Display resolution: 1 nT or 1 V/m
• Switchable sound signal proportional to field strength, Geiger counter effect

The measured value is displayed directly in the unit corresponding to the building biology standard values, without requiring additional calculations. The sound signal proportional to field strength assists in identifying areas with increased LF exposure and locating field sources.

ME3840B AC electric field measurement

For electric field measurements, the analyser can be set to E. For reliable and reproducible measurement results, the instrument can be connected to ground potential using the included grounding cable. The jack plug of the grounding cable connects to the dedicated socket on the instrument.

• The ME3840B frequency filter can be set to 50 Hz for electric field measurements
• The instrument should be kept close to the body
• During measurement, the operator and other persons present should remain behind the instrument
• The field source can be located by following the direction of increasing readings
• Measurements can be repeated at different times of the day and on different days of the week to identify fluctuations

The recommended exposure limit for an AC electric field at 50/60 Hz with grounded measurement is below 10 V/m, preferably below 1 V/m. For potential-free measurement, the stated value is below 1.5 V/m, preferably below 0.3 V/m.

ME3840B AC magnetic field measurement

For AC magnetic field measurements, the instrument can be set to M. For this measurement, the field meter does not need to be grounded or held close to the body, and persons present do not affect the measurement results.

• The frequency filter can be set to 50/60 Hz
• The three spatial orientations can be checked periodically
• Rotating the instrument allows the direction with the highest reading to be identified
• In this direction, the resultant magnetic flux density is displayed
• The display requires approximately 2 seconds to settle after a change of direction
• Quick movements can cause short peaks of pseudo readings unrelated to the actual fields

The recommended exposure limit for an AC magnetic field at 50/60 Hz is below 200 nT, preferably below 20 nT. The specified conversion is 200 nT = 2 mG.

Gigahertz Solutions ME3840B power supply and operation

• Power supply: 9 V E-block alkaline manganese battery
• Average operating time: 24-36 hours, depending on operating mode
• Automatic power-off after approximately 40 minutes of continuous use
• Low Batt. indicator
• Meaningful measurement is no longer ensured when Low Batt. appears
• Weight: 0.40 kg
• Warranty: 2 years

The automatic power-off function switches the instrument off after approximately 40 minutes of continuous operation in order to conserve battery capacity.

ME3840B scope of delivery

• ME3840B measuring device
• Grounding cable
• Alkaline manganese battery
• Detailed instruction manual with background information

The detailed instruction manual describes the measurement procedures for electric and magnetic LF alternating fields and includes the recommended limiting values according to the building biology SBM standard. The frequency analysis of the instrument enables separate examination of the complete 5 Hz-100 kHz range, the 16.7 Hz frequency, the 50 Hz-100 kHz range and the 2 kHz-100 kHz frequency range.