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7. DATA MEMORY
The instrument is equipped with a large memory where all readings and identifiers
can be recorded. The capacity of the data memory is more than 1 800 000 readings. The
readings obtained in various modes can be stored sequentially. The stored data can be
displayed or transmitted to an external computer through the USB interface.
It is useful before the beginning of the measuring in a new area to transmit data
stored in the data memory to the external computer and to erase the data memory. Thus,
the data memory is set to maximum capacity.
7.1. Erasing And Checking Of The Data Memory
The stored data will be erased during the erase procedure. Therefore it is
necessary to transmit the data to an external computer before the procedure.
The erasing procedure starts by selecting the item ERASE in the memory menu.
To prevent occasional erasing of the memory, the operator is repeatedly asked to confirm
the operation. Only after pressing [NEXT] the data memory will be deleted.
7.2. Data Storage In The Data Memory
In the MANUL measurement mode after a measurement, the result is displayed
as well as the profile number and the position on the profile of the measurement point
and other information. To store the data, the operator presses [ENTER], otherwise [ESC]
(canceling the measured value), and the measurement on the point can be repeated. The
position of the next measurement is displayed in both cases. The position can be
changed in the item POSITION.
In the AUTO and WALK measurement modes, the measured data are stored
automatically, and the profile number and the position on the profile are not incremented.
7.3. Display Of Data Stored In Memory
The data stored in the data memory can be displayed or transmitted through the
USB interface to a computer.
The data is displayed in the item LIST of the memory menu and selection of the
measurement type (MANUL, WALK, AUTO). After entering the item, the last stored data
is displayed. Pressing [ v ] or [ ^ ] displays the following or the previous reading.
Continually pressing [ v ] or [ ^ ] increases the speed of the scanning. A notice is
displayed if the data memory is empty and when there is a beginning of the data memory.
7.4. Transmission of the Stored Data to a Computer
Before the transmission of the stored data to an external computer, it is necessary
to connect the instrument and the computer with the USB cable.
On the computer, it is necessary to run the program, which allows the data to be
transmitted from the magnetometer to the computer and stored in a gzipped XML file
format.
The measured data can be as well exported to a text file for further processing.