ME 3030B - Detector Gigahertz Solutions - Free user manual and instructions

USER MANUAL ME 3030B Gigahertz Solutions

of their results. Far more adequate for the most important task, which is the identification of the sources of pollution, would be an earthed measurement, though, which is why this procedure is especially recommended for the private use. For more back- ground information to potential-free measurements please see our website. Recommended Exposure Limit AC Electric Field: Below 10 V/m, preferably below 1 V/m (at 50/60 Hz for grounded measurement) For potential-free measurement: below 1.5 pref. 0.3 V/m

Measurement Instructions – Magnetic Field: Turn on the field meter and set the switch "Field Type" to "M" for AC magnetic field. (ME 3840B only: Turn the knob for the fre- quency filter to “50/60 Hz”). The field meter does not need to be grounded, persons present do not affect the testing results and there is no need to hold the meter close to your body. Proceed as follows: - Move slowly through the room to be measured with special re- gard to the sleeping or working place.

Resulting total field strength = square root (x² + y² + z²). Simplified calculation is possible by finding out the position / direction of highest reading as described in the next chapter for the magnetic field. The above formula is also valid for the calculation of the “3D” magnetic field.Made in Germany 8 © Gigahertz Solutions GmbH - There is no need to turn the meter into different directions like for the E-field, instead check all three orientations from time to time as shown in the following pictures. - In practice it is usually sufficient to “rotate” the meter out of your wrist until you have the position / direction of the highest reading (fourth picture below). In this direction the meter shows the so-called “resulting” field strength resp. magnetic flux density.

Please note: Quick movements induce short peaks of pseudo readings that have nothing to do with actual fields (due to the earth’s static magnetic field) Let the display settle for 2 seconds after every change of di- rection. Recommended Exposure Limit AC Magnetic Field: Below 200 nT, preferably below 20 nT (Magnetic flux density at 50/60 Hz). (Conversion nT to mG (Milligauss): 200 nT = 2 mG) = Resultant magnetic flux density!Made in Germany © Gigahertz Solutions GmbH 9 ME 3840B only: Frequency Analysis AC fields are not only defined by their field strength, but also by the frequency with which the polarity of the field changes. The ME3840 B can separate the following common frequencies and frequency bands:

Good for overall considerations.

Overhead railway wires in Germany, France, Norway, Austria, Sweden and Switzerland.

Electric power grid and its harmonics.

“Artificial harmonics” above 2 kHz (e.g. from many AC-adaptors, energy-saving bulbs, TV-sets). Corresponds to band 2 of the Swedish TCO guideline. A factor 10 lower safe limits are rec- ommended for this range!

Battery, Auto-Power-Off, Low batt. The meter is powered by a 9 V battery, situated in the battery compartment on the back of the meter. The meter will automatically be shut off after 40 minutes of con- tinuous use in order to save battery capacity. When “Low. Batt.” appears in the centre of the display, the field meter will be turned off after 3 min. in order to avoid measurement errors. Possibilities of Remediation If possible, increase the distance to the source of pollution Correct “Plugging”: Switch the meter to “E” and place it between e.g. the bedside light and the pillow. Switch off light. Reverse direction of plug by 180° and re-insert it. Logical: leave plug in the direction of lowest readings. This trick works best for an inline cable-switch of e.g. the lamp. Use shielded socket-lines with two pole switch and shielded con- nection cables (for available versions check our website). Install an automated “demand switch” in the house fuse box which cuts out electricity as soon as the last load is switched off and automatically reconnects as soon as electricity is needed again. As long as everything is switched off, there is no tension on the line and hence no pollution in the room. This is the most com- fortable and effective measure you can take. Check www.gigahertz-solutions.com for most sophisticated and well reputed models.Made in Germany 10 © Gigahertz Solutions GmbH It's easy to check for yourself whether a demand switch is a good investment for you (easiest in pairs): One person reads the meter on the bed to be inspected. Switch the meter to “E“. The other person switches off the relevant fuses (one by one and different combinations) Install the demand switch into those circuits which show the highest reduction of field strength. Further hints, literature and contact information regarding professional “building biologists” can be found on our web- site.Made in Germany © Gigahertz Solutions GmbH 11 Italiano