1. venue selection
   • Stay away from sources of interferenceAvoid installing equipment near strong electromagnetic interference (such as high-frequency equipment, large motors) to prevent magnetic field signals from being interfered with or superimposed.
   • Space requirementsEnsure that there is sufficient space in the testing area, avoid metal objects (such as walls, metal brackets) from approaching the magnetic field coil, and prevent eddy current effects from affecting the uniformity of the magnetic field.
   • Temperature and humidityUse within the recommended working temperature (usually 0-40 ℃) and humidity range to avoid equipment performance degradation or damage caused by high temperature or humidity.
2. Grounding and shielding
   • Reliable groundingThe equipment casing and power cord must be reliably grounded to prevent leakage or static electricity accumulation.
   • Shielding measuresFor high-precision testing, electromagnetic shielding should be applied to the testing area to reduce external magnetic field interference.

2、 Electrical Safety and Operating Standards

1. Power requirements
   • Voltage matchingEnsure that the input power supply voltage is consistent with the rated voltage of the device (such as 220V/50Hz or 110V/60Hz) to avoid voltage fluctuations or misconnections that may cause equipment damage.
   • overload protectionUse power sockets or circuit breakers with overload protection function to prevent safety accidents caused by excessive current.
2. operating procedure
   • warm-up timeAfter the device is started, it needs to be preheated for a period of time (usually 15-30 minutes) to ensure stable magnetic field output.
   • Parameter SettingsSet the magnetic field strength, frequency, and duration according to the testing standards to avoid exceeding the range of use.
   • Gradually increase the voltageWhen adjusting the magnetic field strength, it should be gradually increased to avoid sudden pressure rise that may cause damage to the equipment or the measured object.
3. personnel security
   • Stay away from strong magnetic fieldsDuring device operation, operators should avoid prolonged exposure to high-intensity magnetic fields to prevent any impact on sensitive devices or items such as pacemakers.
   • Warning signSet up clear warning signs in the testing area to remind unrelated personnel to stay away.

3、 Equipment maintenance and calibration

1. regular inspection
   • Coil statusCheck whether the magnetic field coil is damaged, deformed, or loose to ensure the uniformity of the magnetic field.
   • connecting wireCheck if the power line, signal line, and grounding wire are intact to avoid poor contact or short circuit.
   • cooling systemClean the cooling fans and ventilation openings of the equipment to prevent dust accumulation and overheating.
2. Calibration and Verification
   • periodic calibrationRegularly calibrate the equipment (usually once a year) based on usage frequency and environmental conditions to ensure the accuracy of magnetic field strength and frequency.
   • Standard verificationVerify equipment output using standard magnetic field probes or calibration devices, record calibration data, and update equipment parameters.

4Common Problems and Solutions

1. Insufficient magnetic field strength
   • reasonInsufficient power supply voltage, damaged coil, or excessive load.
   • solveCheck the power supply voltage, replace the coil, or reduce the load.
2. Uneven magnetic field
   • reasonImproper installation of the coil, deviation of the measured object from the center, or presence of metal objects around it.
   • solveReadjust the coil position, place the measured object in the center, or remove the metal object.
3. Equipment overheating
   • reasonPoor heat dissipation, prolonged high load operation, or high ambient temperature.
   • solveClean the cooling system, reduce load, or improve environmental conditions.

5、 Other precautions

1. Transportation and Storage
   • Shock and moisture resistanceDuring transportation and storage, avoid severe vibrations and humid environments to prevent equipment damage.
   • Long term storageWhen not in use for a long time, regular power on inspections should be carried out to prevent component aging.
2. compliance
   • Certification requirementsEnsure that the equipment complies with relevant safety certifications (such as CE, UL) to avoid testing being invalidated due to compliance issues.
   • Operation TrainingOperators need to undergo professional training, familiarize themselves with equipment operating procedures and safety precautions.