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INA 702
The INA 702 is a 1 x 1 m loop - 11 turns – coil factor 9.8 - when fitted with the
power plug. It enables the generation of field strengths of up to 40 A/m for
mains frequency fields 50 or 60 Hz when used with the MFO 6501 or MFO 6502
current sources.
INA 702 becomes a single turn loop when fitted with the pulse plug, which
allows the generation of pulsed field strengths up to 1200 A/m, where the
current is generated by a 4400 V surge generator.
INA 703
The INA 703 was conceived for tests at stronger power frequency magnetic
fields according to IEC 61000-4-8.
A multi-turn concept (37 turns) allows the INA 703 to generate fields higher
than 1000 A/m while using a programmable AC source rated for just 30 A. This
enables testing to the IEC 61000-4-8 standards requirement of a current THD <
8%, which can be met only with a programmable AC source.
The INA 703 has taps at turns 1 and 5, providing increased accuracy when
generating low amplitude fields.
For testing to IEC 61000-4-8, the INA 703 can be used as an accessory to a
TESEQ Profline system comprising an NSG 1007 source, an INA 2141 impedance
box and the the WIN 2120 software.
