User Manual

GMC-I Messtechnik GmbH 75
Interface Operation
7 Interface Operation
Your instrument is equipped with an infrared interface: Data and
commands are transferred through the instrument housing by
means of infrared light to an interface adapter (accessory) which is
plugged onto the multimeter and connected to a PC via USB.
The multimeter can be controlled by the PC via this interface
without any action required from the user (e.g. operation of the
rotary switch or keys) in order to:
• Configure and read out measuring parameters
• Select a measuring function and a measuring range
• Start measurement
• Read out stored measured values
7.1 Activating the Continuous Transmission Mode
The interface is automatically activated for receiving operation
(multimeter receives data from the PC) as soon as the interface is
addressed by the PC, assuming that the “1rStb” parameter has
been set to “on” (see section 7.2), or the instrument is already swit-
ched on (the first command wakes up the multimeter, but does not
yet execute any further commands).
The “continuous transmission” operating mode is selected
manually as described below. When set to this operating mode,
the instrument continuously transmits the following data at the
sampling rate selected under StorE > rAtE:
• Momentary measured value(s)
• Measuring function
• Measuring range(s)
Starting Continuous Transmission Operation with Menu Functions
1nFo
 ...  SEnd StArt send
The symbol blinks at the display in order to indicate interface
operation.
Stopping Continuous Transmission Operation with Menu Functions
1nFo
 ...  SEnd stop
stop send
The symbol is cleared from the display.
Automatic Activation and Deactivation of Transmission Mode Operation
If the sampling rate is 10 minutes or longer, the display is switched
off automatically between samples in order to prolong battery ser-
vice life. The only exception is when the multimeter is set to conti-
nuous operation.
As soon as an event occurs, the display is automatically switched
back on, and then off again.
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER