GMC-I Gossen-Metrawatt GmbH
61
GB
24
Data Transmission via the RS 232 Interface
The multimeter is equipped with an infrared interface for
the transmission of measurement data to electronic data
processing systems. Measurement values are optically
transmitted via infrared light through the housing to an
interface adapter (accessory), which is plugged into the
multimeter. The RS232 interface at the adapter allows for
connection to the PC. The measurement data are transmit-
ted to the PC with a cable.
Furthermore, commands and parameters can be uploaded
from the PC to the multimeter. For example:
• Select and read our measuring parameters
• Select measuring function and range
• Start measurement
• Read out measurement values
24.1
Activating the Interface
The interface is manually activated for data transmission as
described below. This operating mode provides for contin-
uous uploading of measurement data from the instrument
to the PC via the interface adapter.
The interface is activated automatically for the receipt of
data (downloading from the PC to the instrument) as soon
as transmission is started at the PC.
Starting Transmission Mode Operation via Menu Functions
SEt
V
SEnd
↵
OFF
V
on
↵
Starting Transmission Mode Operation via Shortcut
➭
With the instrument switched off, press and hold the
DATA|CLEAR
key and then activate the
ON
key.
The blinking symbol at the display indicates that the
interface has been activated.
Note!
☞
The “SI 232
onLinE
” operating mode must be
selected for transmission via the SI232 (memory
mode: “SI 232
StorE
”).
Other adapters are automatically activated as soon
as an event occurs.
Automatic Activation and Deactivation in the Transmission Mode
The display is automatically switched off automatically
between two samples in order to extend battery service
life.
The following exceptions apply:
Events counting mode, count zero-crossings (counter),
stopwatch mode, continuous operation, power measure-
ment and power disturbance recording (mains).
The display is automatically reactivated as soon as an
event occurs.