Lippmann Geophysikalische Messgeräte 4point light, Руководство по эксплуатации, Страница: 82 / 130

Monitoring mode
Page 82 of 130 Operating instructions 4point light 10W (V 4.58)
Data transfer can be cancelled at any time by clicking [ESC]. After the transfer the
program automatically switches back to the monitoring menu.
Data transfer to the PC : Data are transferred to the PC via the serial interface. To receive the
data the program GEOTEST can be used or any other terminal program (e.g. WINDOWS
Terminal or HyperTerminal).
8.6.8 GPRS
GPRS
–
G eneral P acket R adio S ervice
– enables the
data transfer over the mobile
phone network (in this case GSM). In GPRS mode the data transfer is integrated into
the measurement sequence and is carried out automatically. In addition the data will be
stored in an internal ring buffer, because data transfer via mobile phone network is not
assured at any time.

You need an appropriate GPRS modem (available on request), which is connected to the
instrument via the serial interface.
To start a GPRS monitoring measurement free memory for about 30 data blocks is
recommended (necessary is at least one data block). In case of transmission problems to
the FTP server, the measurement data can then be buffered for an adequate time without
loss of data.
Warning of data loss
If automatic data transfer is not possible, data are stored in an internal ring buffer.
When the memory space is full and still no transmission is possible, the
measurement won´t stop: the instrument overwrites measured data beginning with
the first data block of the current measurement file. Data loss is possible!
→
Check GPRS connection periodically and restore connection if
necessary.
If data transfer via GPRS after data acquisition is not possible, data blocks will be sent
later, provided that they are still in the ring buffer and were not overwritten. Up to 50 data
blocks can be sent later
To perform measurements in GPRS mode, several settings for GPRS and FTP are to
be made .
➔
8.10.2 Communication, page 91
Format of data transfer is the monitoring standard format .
➔
10.2.5 Monitoring, page
116
To check the GSM signal strength and the GPRS and FTP connection , various test
functions are integrated . For analysis of potential problems any single step of the
connection establishment will be displayed during the tests. In case of problems the
single steps may last up to five minutes.
➔
8.11 Misc, page 98

Modem
Memory

Settings