Pressure Systems 9022 Uživatelský manuál stáhnout pdf (Strana 120)

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

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4.3.2. Span Calibration Summary

Following is a simple, step-by-step procedure for executing a “full scale” span calibration of a

9016, 9021, or 9022 Intelligent Pressure Scanner. For Models 9021 and 9022, skip the steps that

manipulate valves, as denoted with a double asterisk (**). It is assumed that all channels in the

unit are of the same full scale pressure range. Optional commands are shown within brackets [ ].

Description

9016 Command

9021/9022

Command

Ensure that valves are in RUN/CAL mode (default).

[w1200]

… normal data acquisition

Perform Re-zero calibration

See Section 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

[w0C00] for RUN

Apply exact full scale pressure to 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]

[r0FFF0]

Instruct module to

calculate new gain coefficients for all 16

channels

ZFFFF

Z0FFF

Place calibration manifold back into the RUN position

w0C00

Store new gain coefficients to transducer non-volatile

memory

w09

… continue normal data acquisition

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Pressure Systems 9022 Uživatelský manuál Strana 120