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
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