Pressure Systems 9022 Manuel d'utilisateur télécharger pdf (Page 53)

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Measurement Specialties Inc. NetScanner System (9016, 9021, & 9022) User’s Manual

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It is not necessary to enter the two or more calibration points in strict numerical

order (i.e., 1, 2, ... npts). Any convenient entry order is allowed, though each

point’s actual pressure value must be correctly stated (with the pppp.pppp

parameter) when executed. Previously entered points may be reentered if it is

necessary to account for hysteresis. However, all the points specified by the npts

parameter of the Configure & Start (‘00’) sub-command must be supplied before

the final Calculate and Apply (‘02’) sub-command can be executed, else an error

will result.

Example:

• Supply each of the previously-specified three (3) pressure calibration points to the

Multi-Point Calibration function, as was stated in the previous example of the

Configure and Start (‘00’) sub-command. Assume that all the affected four (4)

channels have differential transducers with the same -5 to +5 psi range. Include

at least one pressure point in the negative range of these transducers.

“C 01 1 -2.5”

“C 01 2 0.0”

“C 01 3 5.0”

Read responses (separately after each command executed above):

“-2.4998 -2.4999 -2.5001 -2.500”

“0.0 0.0013 -0.0133 -0.00001”

“5.0091 4.9992 5.0010 4.9998”

Data are returned in reverse channel number order (i.e., 4, 3, 2, 1) in each

response.

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 193 194

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Pressure Systems 9022 Manuel d'utilisateur Page 53