18
Chapter 6 - I/O Signal Description
RS-232 Bi-Directional Interface
Type: 38,400 baud, 8 bit, no parity, 1 stop bit, no flow control. Used
to output the flow rate, volume, and temperature signals as well as to
select options and modify operating parameters. See Appendix C
.
Analog Output of Mass Flow Rate
Factory default: 0–4.0 VDC corresponding to 0 to the full scale flow
capabilities of the meter. Zero flow and Full Scale flow rate can be re-
scaled via the digital serial interface. See Command Set
section.
The response of the analog output can be changed by altering the
sample rate (see Command Set
section). Note that changing the
sampling rate affects both the analog output and the digital outputs.
Optional User-Supplied Pressure Signal
In some applications you can enhance the accuracy of the mass flow
reading by supplying a signal corresponding to the actual, absolute
pressure in the flow tube. The flowmeter uses this information to
To Next Page
Loading...
Need help?
General
