Geometrics G-877, Operation Manual

Page: 22 / 49

employing this Maglog feature as large numbers of shape file elements can slow down the
program performance.
Configuring magnetometer hardware.
Next is the magnetometer configuration section. It is recommended that the magnetometer be
connected to one of the computer serial ports and sending data. If you know the port and baud
rate, set it and
press Autoset communication parameters . MagLog scans all available ports and
baud rates trying to find the magnetometer data. It starts the search with parameters you have set;
therefore if the port and baud rate are set correctly, the magnetometer will be found very quickly.
Next set
Hardware Type . The following configurations are available:
1. 1 880/881/823 mag system . This system consists of one magnetic sensor with its signal
strength channel. It outputs two numbers per reading – total field and signal strength.
2. 1 880/881/823 mag with depth sensor . The same as above, but with pressure
transducer. It outputs 3 numbers per reading: total field, signal and a depth reading that
needs to be calibrated.
3. 1 880/881/823 mag with depth & altimeter. The same as (2) but altimeter data has
been added. The system outputs 4 numbers: total field, signal, depth and altitude. Depth
and altitude data need to be calibrated.
22 G–877 MARINE MAGNETOMETER OPERATION MANUAL