Pressure Systems 9022 Uživatelský manuál stáhnout pdf (Strana 28)

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

2 - 8

Users of the 9021 and 9022 may proceed to Section 2.3.7 since these modules do not require

any pneumatic connections to the module itself.

2.3.6.1 RUN Mode Inputs

The standard pneumatic tubing plates (for the 9016) contain sixteen numbered pneumatic input

channels. These numbered inputs are attached to corresponding pressure transducers inside the

instrument and should be pneumatically attached to the pressure measurement points under test.

The standard tubing plate also contains an input labeled RUN REF. The RUN REF input is

pneumatically connected to the reference side of all internal DH200 pressure transducers. The

RUN REF connection is used for situations where all channels have one reference pressure. The

reference pressure may be as high as 250 PSI (1720 kPa). This input may also be left unattached

to provide atmospheric reference pressure.

When using instruments with the reference per channel option (true differential), two pneumatic

inputs will be provided for every numbered channel. These inputs are labeled ‘P’ and ‘R’. The

‘P’ connection is the test pressure input. The ‘R’ connection is the transducer reference input

pressure. Since each channel has its own reference pressure input, the RUN REF input is not

provided on the true differential tubing plate.

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Pressure Systems 9022 Uživatelský manuál Strana 28