Geometrics Memory-Mag G-856AX, Operation Manual

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Geometrics, Inc
.
G-856AX Operation Manual
22
A tunE FIELD/TIME
on STATION/DAY
To determine the instrument’s tuning mode press:
AUTO, TUNE
and observe the
STATION/DAY
display. It will indicate whether the Auto Tune function
is on or off.
F
or best performance, we recommend manual tuning of the G-856AX before
taking the first reading in a survey area. After this, automatic tuning can be selected, and
used with a better degree of confidence.
6 - Acquiring and storing a magnetic field reading
The
READ
and
STORE
keys are the only ones you will normally use while surveying.
To measure the magnetic field, store it, and recall it from memory all that you need to do
is press
READ , STORE , and RECALL keys in sequence. You will observe something
similar to the following:
1)
When you depress
READ
, the displays will light briefly showing the battery voltage.
For example:
batt FIELD/TIME
11.7
STATION/DAY
2) Then, the battery voltage will turn off after a short interval and the FIELD/TIME
display will light with a 5 or 6 digit number. For example:
67584.2 FIELD/TIME
This is the magnetic field reading in nT.
3) As the magnetic field appears in the
FIELD/TIME
display, another number appears in
the STATION/DAY display. For example:
0 STATION/DAY
This is the station number. Both displays will stay lit for about 5 seconds and then go
out.
4) To store the reading in memory, depress
STORE
while the displays are still lit. If the
displays go out before you depress
STORE
the reading will be lost and the
ERROR
message will come on. Otherwise the display will go out after you press
STORE
.
The G-856AX can also be configured to store survey measurements automatically. In
this mode you will only need to press
READ
in order for the console to read and store the
measurement. To enable automatic storage press: