To make a measurement:
1. Hold the meter in your hand far from the power line, machine or
appliance whose EMF intensity you wish to measure. Note that the
meter’s upper readout may show a value other than zero, due to random
EMF generation in the local environment.
2. Move slowly towards the target. Note how the intensity increases as you
move closer, and peaks as you physically touch the target.
3. When measuring the EMF produced by a machine or appliance, power off
the device and take a new reading of residual environmental EMF.
Subtract the peak reading from the residual reading to determine the
actual EMF intensity produced by the machine or appliance.
Experiment using alternate display mode to measure the axial EMF intensities
produced by a device. A label on the back of the meter indicates how to orient
it to measure and display the X, Y and Z components of a three-dimensional
EMF.
To change the measurement unit of EMF intensity, press the G/T button
(Callout 5). The button toggles between microTeslas (μT) and milliGauss (mG)
units. μT or m G appears at the right of the value displayed on the upper
readout.
The EMF1394DL automatically enters Autoranging mode when powered on.
To switch to one of the three available manual ranges, press the Range
button (Callout 6). Pressing the button causes the symbol R to appear in the
upper left corner of the LCD.
• Pressing the Range button once enters the narrowest measurement
range—0 to 20 mG (0 to 2μT). In this range, both kind of readings (the
combined triaxial reading and the separate x-, y- and z-axis readings)
have 0.01 mG (0.001 μT) resolution.
• Pressing the button again enters a middle measurement range—0 to 200
mG (0 to 20μT). In this range, readings have 0.1 mG (0.01 μT) resolution.
• Pressing the Range button a third time enters the widest measurement
range—0 to 2000 mG (0 to 200μT). In this range, readings have 1 mG
(0.1 μT) resolution.
To exit Manual ranging mode and re-enter Autoranging mode, press and
hold the Range button for at least 3 seconds. This will cause the R symbol to
disappear from the upper left corner of the LCD.
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