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Span calibration summary – Pressure Systems 98RK-1 User Manual

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

Page 105

www.PressureSystems.com

Note

To minimize the possibility of overpressure damage, multi-range
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
position if this is the desired pressure application input.
The RUN position may be a better choice for modules with
transducers having different ranges.

[w0C01] for CAL pos.

[w0C00] for RUN pos.

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
channels

ZFFFF

Place calibration manifold back into the RUN position

w0C00

Store new gain coefficients into transducer nonvolatile
memory

w09

… continue normal data acquisition

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