60 GSM19 Series Magnetometers - Version 7
GEM Systems, Inc. Advanced Magnetometers
For more technical information, visit www.gemsys.ca
5.6.1 Performing a Reading
After the initial start-up procedures (refer to section 5.3), select the survey mode from the Survey
Menu as follows:
SCREEN 53
survey mode position time file
cycle time tuning AC filter
display mode text ID
connect sensor now
029127 readings left
mobile
A-start C-change
←
BF
→
Press C-change. The following screen is displayed.
SCREEN 54
A - mobile B - base
C - grad
D - walkmag E - walkgrad
In this screen you have the choice of selecting the Survey Mode
D - for walkmag mode (available on GSM-19W units)
E - for walkgrad mode (available on GSM-19GW units)
Both walkmag and walkgrad are auto-cycling modes. The unit takes readings at the pre-set rate
without your intervention and as he/she walks along the lines.
To set the rate, highlight
cycle time from the survey menu and use C- or B+ to increase or decrease
the current setting. The available rates are:
0.5sec. (2 readings/second or 2Hz)
1.0sec. (1 reading/second or 1Hz)
2.0 sec. (1 reading/2seconds or 0.5 Hz)
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