Scanivalve MPS4232, Hardware And Software Manual

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MPS4232
Section 5: Software
NOTES A Scanivalve SPC4000 or SPC4050 is required for automated validations.
An Ethernet controllable thermal chamber is required for full validations.
Multiple Unit Validation
COMMAND MVAL
TYPE Function
DESCRIPTION When the master receives the MVAL command, it starts the multiple device full or field validation
sequence, as defined by the variables in LIST C and/or LIST O. A validation report is generated and
stored in each MPS’s file system.
SYNTAX MVAL [<F or FM>]
Where:
F = Initiates a single temperature field validation, with no oven connection. MPS connection to
a calibrator required.
FM = Initiates a single temperature manual field validation with no oven or calibrator connec -
tion.
When the optional parameter is not present, the unit performs a full multi-unit validation.
*Coming in a future firmware update.
RETURNS Validation Data
EXAMPLE
MVAL
[:::data:::]
>
NOTES A Scanivalve SPC4000 or SPC4050 is required for automated validations
An Ethernet controllable thermal chamber is required for full validations.
Quick-Zero Offset Calibration (CALZ)
COMMAND CALZ
TYPE Function/Set
DESCRIPTION Starts a zero calibration and places the MPS4200 into CALZ mode. This operation produces A/D
count values for each pressure channel that is subtracted from the raw pressure counts
before converting to the chosen pressure units.
SYNTAX CALZ [0]
If the option “0” is used, this will disable any previous CALZ correction factors. The scan data will
then be non-corrected.
RETURNS A prompt when ready for the next command.
EXAMPLE
CALZ
>
NOTES A CALZ does not require additional equipment, is performed internally, and the command can be
issued at any time.
Typically, a CALZ is issued when the module is in the CALIBRATE valve state. This allows the CAL
and REF ports to be tied together externally to provide an equal, or zero differential, pressure
to the positive and negative sides of the transducer. This provides an optimal Quick-Zero Offset
Correction.
CALZ’s can be performed when the module is in MEASUREMENT (Px) mode. This is typically
performed in a “wind-off” condition, known as a “wind-off CALZ”, where no pressure is being
applied to the REF or Px ports of the module. This provides a Quick-Zero Offset Correction in the
measurement state with no pressure applied.