The Model 535 magnetometer is a complete 3 Axis Fluxgate Magnetometer system packaged in a
rectangular package of dimensions 1.5" x 1.5" x 2.775". With low noise and
relatively small size, the instrument can be used wherever relatively small magnetic fields
(.02 milligauss to 5 Gauss) need to be measured. Output from the sensor is 3 analog voltages
proportional to the magnetic field in three orthogonal directions. Full scale output is
±10 volts, which represents a magnetic field of ±5 Gauss. The system is simple to
set up and operate.
The Model 535 system employs an optional active failure recognition system to detect when
any of the three fluxgate sensors stops performing properly. The failure system functions by
applying a low-level magnetic signal to each fluxgate sensor and then detecting the presence of
the signal in each of the fluxgate output channels. A failure output logic signal is provided to
alert the user should any of the fluxgate sensors stop functioning. This feature is useful for
applications such as magnet automobile guidence systems where correct operation of the sensors
is critical.