Geometrics G-877, Руководство по эксплуатации

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input voltage decimals :4
temperature scale factor : 1
temperature bias sign (0 = add, 1=subtract) :0
temperature bias : 0
temperature decimals :0
polarize voltage scale factor : 145
polarize voltage bias sign (0 = add, 1=subtract) :0
polarize voltage bias : 0
polarize voltage decimals :4
Manufacture code : 0
Unit code : 0
Factory code :
A Pressing will allow all parameters that may be changed in B, C, F, L, P, and T to be accessed for change, all at
the same time, in one large list.
Two copies of the configuration data block are stored with a checksum each. Should power be
disconnected during the FLASH write, the software will reject the partially written block. If
both blocks are bad, the software will be forced into Configuration Mode and all values will be
set to factory default values. If the factory configuration block is bad, safe values are used.
If you exacerbate the situation by turning off the power before resetting and saving a valid
configuration, or if you are having problems initializing the system, do the following:
1) Turn/leave the power off to the magnetometer.
2) Press the <CAPS LOCK> to select all upper case letters to be output to the Magnetometer.
3) Hold the "Q" key to return to configuration mode and turn the AC Power Unit on.
4) If this procedure fails to reinitialize the system, repeat from (1) above. Otherwise see the
G-
876/G–877 FLASH DOWN LOADER PROGRAM section below.
5) Correct the configuration and save.
4.5.1 Cycle time:
A two second cycle rate produces the best data, approximately 0.1 to 0.2 gamma during actual
towing conditions. Some of this "noise" is a mixture of sea swell generated noise, ship motion
noise, sensor motion noise with geologic signal and diurnal variations mixed in. The system will
cycle at a 0.5 second rate if the transmitted data formats are short. Some loss of performance
will occur at higher repetition rates.
4.5.2 Tuning:
The tuning value set during this procedure is used at power up. It can be changed during actual
magnetometer operation by using the "T" command from the graphics or character display
screen, but that value will not be permanently stored.
G–877 MARINE MAGNETOMETER OPERATION MANUAL
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