Measurement Testing

Mjr · Site Admin Joined: 13 Jul 2005 Posts: 294

Electric Field Meters, often used in EMC and EMI testing, vary in specification. Here are some example specs of the Model 100 from Combinova:

ALTERNATING ELECTRIC FIELDS ( ELF )
Antenna system	Æ 300 mm disc probe.
Frequency range	5 - 2000 Hz ( -3dB ).
Filter attenuation	80 dB/decade below 5 Hz and 40 dB/decade above 2 kHz.
Measurement range	0.5 - 10.000 V/m rms, automatic range selection.
Uncertainty	± ( 3% of reading or min. 0.2 V/m ).
Display resolution	Better than 0.5% of reading or 0.01 V/m.

ALTERNATING ELECTRIC FIELDS ( VLF )
Antenna system	Æ 300 mm disc probe.
Frequency range	2 - 400 KHz ( -3dB ).
Filter attenuation	80 dB/decade below 2 kHz and 40 dB/decade above 400 kHz.
Measurement range	0.05 - 1000 V/m rms, automatic range selection.
Uncertainty	± ( 3% of reading or min. 0.03 V/m ).
Display resolution	Better than 0.5% of reading or 0.001 V/m.

MISCELLANEOUS
Display	Liquid crystal display, 24 characters x 2 lines.
Parameter storage	Instrument parameters and corrections are stored in a non-volatile memory ( EEPROM ).
Power	Rechargeable battery of sealed lead-acid type. Operating capacity exceeding 30 hours.
Communication	Fiber optic communication.
Dimensions	300 mm x 155 mm (diameter x depth)
Weight	Instrument weight 2.5 kg.
Operating environment	-10°C to +50°C.
CE complliance	EN50081-1:92 , EN50082-1:92 ,EN61010-1:93