Test Products International 460 - Manual (Page 27)

1mV/inHg selections as required.
On the A620, use the BAR switch position to measure vacuum or the X10psi position to measure
pressures from 1 to 500psi. Use the ZERO control only if you know the pressure to be zero and
stable, or at a standardized pressure.
The A620 uses a 9V battery (supplied) and includes a 1/4 inch NPT pressure port connection at
the end of a 2-Meter flexible cable.
PC Software and RS232 Cable - A404
This software allows the 460 to download data and waveforms to any computer environment run-
ning Microsoft Windows. The RS232 interface utilizes a fiber optic connection to shield the data
from electro magnetic radiation sources, and therefor from potential signal degradation.
Using the A404 package you can download data and put the information into spreadsheets and
charts for incorporating into reports and other documents. Reports from different units can also
be merged to produce one report.
In addition, graphs can be shown with the identification number of the instrument used, enabling
data to be cross-checked against calibration records helping to ensure full traceability.
Since live waveforms can also be transmitted to the computer via the RS232 connection, you can
compare stored waveforms to current waveforms for some types of fault recognition.
Refer to Appendix D for RS232 interactions with your personal computer.
460 User s Guide Using Adapters
C5-3