Pressure Systems 9022 Instrukcja Użytkownika Pobierz pdf (Strona 117)

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

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4.2.2 Re-zero Calibration Summary

Following is a simple, step-by-step procedure for executing a Re-zero calibration of a 9016 or

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

manipulate valves as denoted by a double asterisk (**). Optional commands are shown within

brackets [ ].

Description

9016

Command

9021/9022

Command

Disable automatic valve shifting after module power up. Ensure

valves in RUN/CAL mode (default)

[w0B01]

[w1200]

… normal data acquisition

Apply 0.0 psi differential to the module CAL and CAL REF

inputs.

Place the module calibration manifolds into the CAL position [if

w0B01 command executed in Step 1]

w0C01

Delay for settling of pneumatic inputs

Verify that measured data reads near expected zero value

[rFFFF0]

[r0FFF0]

Instruct module to calculate new offset coefficients for all 16

channels of Model 9016 (all 12 for Models 9021and 9022)

hFFFF

h0FFF

Place calibration manifold back into the RUN

position [if w0B01

command executed in Step 1]

[w0C00]

Store new offset coefficients to transducer nonvolatile memory

[w08]

… continue normal data acquisition

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Pressure Systems 9022 Instrukcja Użytkownika Strona 117