Electro-Metrics EM-2115, Instruction Manual

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EM-2115 APPENDIX E ACCESSORY DATA
(EM2115E-14)
damage and the environment. Each probe is color-coded to denote the frequency of the particular
probe.
The EM-6880 covers from 10-520 kHz and is colored red.
The EM-6881 covers from 0.48-25 MHz and is colored white.
The EM-6882 covers from 22-230 MHz and is colored blue.
The handheld probes are normally used to search for RF leakage and in determining
which side of an article under test radiates the highest level prior to running a MIL-STD or FCC
radiated emissions test. They may also be used to measure magnetic field emissions from the
cases and cables of electrical and electromechanical equipment. These measurements are similar
to Method RE01 of MIL-STD-461/462, but extend in frequency above 50 kHz up to 230 MHz.
The probes are designed to work into a 50

system and the calibration chart is based on
this use. The calibration chart gives values of antenna factor for finding the magnetic field
strength H.
To find the field strength H in dB(µA/m), add the factor from the probe chart in dB(S/m)
to the measured two-terminal input voltage on the EM-2115 in dB(µV). To find the flux density
B in dB(pT), add 2 dB to the field strength H reading.
The Magnetic Field Probes are, electrically, magnetic dipoles and thus having a dipole
pattern must be oriented for best sensitivity.
E-3.3 EM-6983 Line Probe
E-3.3.1 Specifications
a. Electrical
Frequency Range: 450 kHz-30 MHz.
Wire Size (Maximum): AWG #4, 5.3 mm (0.210").
Maximum Current: Unlimited.
Maximum Voltage: 440 VAC, line to line.
Output Connector: BNC, female.
b. Mechanical
Length: 140 mm (5.5").
Diameter (Maximum): 32 mm (1.25").