24 Chapter 4
SSRnnnn
Backwards compatible with Series 4000
/
4100 flow meters
Sets the sample rate for data returned through the serial port and also
controls the update rate of the linearized analog flow output.
Denotes number of milliseconds per sample, range
1 to 1000.
(“0005” denotes 5 milliseconds per sample, leading
zeroes must be included).
Longer sample rates provide greater flow averaging; whereas, shorter
sample rates provide greater frequency response.
After the command is processed, an acknowledge sequence of “OK”
<CR><LF> is sent. If the command generated an error, an error code
of “ERRn” <CR><LF>will be sent. See Appendix A for a list of
possible error codes.
SGn
SGMmm (Series 53XX only)
Backwards compatible with Series 4000
/
4100 flow meters.
Sets the gas calibration to be used or sets the air/oxygen mixture
concentration.
Models 53XX Only
Denotes set gas calibration.
Denotes the gas calibration desired; range is 0 to 6
0 = Air, 1 = 100% O
2
, 6 = 100% N
2
, 2–5 are invalid in
these models.
NOTE: Only select gas calibration for gases in which the
meter is calibrated. Consult the user manual for
list of calibrated gases.
Denotes set air/oxygen mixture concentration.
Denotes the amount of oxygen in air. Range is 21% to
99%.
The display will indicate the current gas calibration, either
air or O
2
. For air/oxygen mixtures, the display will indicate
both air and oxygen.
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