Pressure Systems 98RK, 9816 user manual Span Calibration Summary, See Sec

Pressure Systems, Inc. 98RK-1 & 9816 User’s Manual©

To minimize the possibility of overpressure damage, multi-range Note 9816 modules are manufactured to make use of the CAL (x) port of

the LOWEST installed pressure range.

4.3.2.Span Calibration Summary

Following is a simple, step-by-step procedure for executing a “full scale” span calibration of a 9816 Intelligent Pressure Scanner. It is assumed that all channels in the unit have the same full-scale pressure range. Optional commands are shown within brackets [ ].

Description

TCP/IP Data

Insure that valves in RUN/CAL mode (default).	[w1200]
… normal data acquisition
Perform Re-zero calibration	see Sec. 4.2.2
Place the module calibration manifolds into the CAL	[w0C01] for CAL pos.
position if this is the desired pressure application input.	[w0C00] for RUN pos.
The RUN position may be a better choice for modules with
transducers having different ranges.
Apply exact full scale pressure to the appropriate module
CAL and CAL REF inputs [or optionally to RUN inputs]
Delay for settling of pneumatic inputs
Verify that measured data reads near expected full scale	[rFFFF0]
Instruct module to calculate new gain coefficients for all 16	ZFFFF
channels
Place calibration manifold back into the RUN position	w0C00
Store new gain coefficients into transducer nonvolatile	w09
memory
… continue normal data acquisition

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