Introduction：
LFPA 9733B is a low-frequency power amplifier produced by Schwarzbeck, Germany, and authorized by EUTTEST in Shenzhen, China. It is especially suitable for low-frequency magnetic field immunity testing according to ISO 11452-8, and it replaces the NFPA 9730, which has been discontinued.
The amplifier can have a gain effect of 26dB in the frequency range of 5Hz-1MHz (nearly 20 times amplification), external two banana head power output port, can directly output large voltage and current signals to theHomer Hertz antennaand handheld radial ring antennas to generate a magnetic field, the voltage and current are shown by a display on the front of the unit and an overvoltage and overcurrent alarm is provided.
Output peak voltage and current display function
For more information on low frequency magnetic field immunity testing, click on the following link:
ISO 11452-8 Low Frequency Magnetic Field Immunity Test System
Technical parameters：
| Product model | LFPA 9733B |
| Device name | Power amplifier |
| manufacturer | Schwarzbeck Shenzhen EUTTEST agent sales |
| Available Criteria | MIL-STD-461E RS101 MIL-STD-461F RS101 ISO 11452-8 EN 55103-1/2 EN 61000-4-8 SAE J1113-22 |
| frequency | 5Hz-1MHz |
| gain | 26±3dB |
| AC Output Current | 28 Arms 50% Duty Cycle @ 5 minutes |
| AC Minimum Load | 0.25Ω |
| Maximum Output Voltage | 60Vpeak@5Hz-250kHz 30Vpeak@1MHz |
| Maximum Output Current | 40 Apeak |
| Input impedance | 1kΩ |
| connector | BNC |
| output connector | banana head |
| electric power source | 220V AC |
| size | 448 x 473 x 280 mm |
| weight | 40kg |
Graph of related technical parameters：
Test Configuration Chart
Maximum field strength that can be generated
