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     The 1540 Sensor is a high-speed 3-axis fluxgate magnetometer employing 24-bit analog to digital
converters. Magnetic field data transmitted by the 1540 is expressed in the unit of Gauss (G).
The use of 24-bit converters enables the 1540 Sensor to measure magnetic field magnitudes
from ±0.65G down
to the system noise level (5 uG Peak to Peak) using a single range.
The 1540 package is cylindrical (1" diameter and 4.725" length) and powers from a single input voltage
that can range from +4.95 to +12VDC. Input current is 40mA. A rectangular model is also offered (1540S)
which is 4.75" x 1.15" x 0.95" in size.
he 1540 Sensor communicates with the outside world over
a bi-directional serial interface using
TTL logic levels and RS232 levels. The system can be optionally configured to communicate with RS422
protocol.
An autosend data mode is included in the 1540 software. When this mode is active, data is automatically
repeatedly sent out the serial port after power is applied to the sensor.
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