2.1 Atmospheric pressure measurement and compensation
Some measurable variables (those in the measuring range list marked 'with PC') are af-
fected by atmospheric pressure; failure to take account of this may lead to substantial er-
rors. To ensure the highest possible level of accuracy these D6 sensors are fitted as stan-
dard with an atmospheric pressure sensor; this is always used automatically for atmo-
spheric pressure compensation (PC) - even if the channel concerned is not activated.
Atmospheric pressure is programmed by default as a climate variable; it can thus be con-
figured as a reference function and the measured value can be used to also compensate
other sensors.
2.2 Correction of measured values
For the primary measuring channels it s possible in the D6 sensor to store values not
only for spot adjustment but also for multi-point adjustment; (the device must have
option KL). On completion of calibration the measuring accuracy will thus be deter-
mined no longer by the measuring instrument but exclusively by the sensor itself.
2.3 Sensor menu
Each D6 sensor has a stored individual sensor menu; this can be downloaded via the
serial interface; it is used to configure measuring quantities and ranges, an averaging
period for measured value smoothing, or other specific sensor functions. As operating
device either a PC or a new ALMEMO
®
V7 measuring instrument can be used.
3. Configuration on PC via USB adapter cable
The ALMEMO
®
D6 sensor can be connected directly to a PC using USB adapter cable
ZA1919-AKUV at a baud rate of 115.2 kilobaud. A microcontroller incorporated in the
adapter cable automatically sets the power supply, baud rate, and device address that the
sensor requires.
Connecting a D6 sensor directly to the PC is performed primarily for the purpose of sen-
sor configuration.
Each such sensor can be configured in various ways, depending on its operating mode,
i.e. connected to an ALMEMO
®
measuring instrument or directly to a PC via the USB
adapter cable. (See the following table):
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