Ecotech HiVol 3000

Downloading Data HiVol 3000 User Manual 1.7
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5.3 Communicating with the HiVol (alternative method)
An alternative (more complicated) way of downloading data is to use a terminal
emulator. Send ***EA command, then use terminal to download file using X-modem.
Using this method the data will be in hexadecimal format and will need to be
converted to ASCII format.
If required, it is possible to connect a modem to the HiVol to collect data. It is also
possible to use a terminal program to communicate with the HiVol via the Serial port
(RS-232C). This may be useful for remote interrogation or for connecting the HiVol
to an external data logger.
Contact Ecotech for details.
Figure 20 HiVol Serial Port (RS-232C)
5.4 Calculations
The HiVol 3000 flow-controller regulates the volumetric flow-rate of air when the
pump is operating. In-built temperature and barometric pressure sensors collect
ambient data, which are stored in the internal data logger. The HiVol 3000 uses the
temperature and pressure data to determine the density of the gas.
All current data can be viewed in the Status menu. Historical data can be downloaded
to a laptop computer via the serial port.
Note: Once the internal data logger memory is full, the HiVol
stops collecting data. If the sample pump is still operating when
the memory is full, then use the current data in the Status menu
to read the uncorrected sample volume in m
3
(Tot. Vol. m
3
) or
the Corrected sample volume in standard m
3
(Cor.Volume m
3
).
Using the ambient and Reference temperature and pressure information, the sample
volume is automatically corrected to Standard Temperature and Pressure (STP)
conditions. The HiVol’s internal data logger stores both uncorrected and STP
corrected sample volume data in the internal memory. The sample volume data are
Serial port RS-232C