Measurement Specialties 9116 - Manual (Page 23)

Pressure Systems, Inc. Model 9116 User’s Manual
Page 14 www.PressureSystems.com
The following guidelines should be used when installing pressure connections to the Model
9116 Intelligent Pressure Scanner modules.
● Always wear safety glasses when working with pressurized lines.
● Ensure that user input pressure will not exceed the proof pressure ratings of
the corresponding instrument transducer. Applying excessive pressure to
measurement inputs can permanently damage the pressure transducers.
● Ensure that all tubing material is rated for the expected pressure and
environmental conditions. Failure to use the proper tubing material may
result in ruptured lines and possible personal injury.
● Ensure all high pressure lines are properly secured.
● Place retaining springs over all bulge tube fittings to ensure pneumatic lines
remain attached and leak free. Springs should be pushed down on
connections so that half of the spring length extends past the tube bulge.
2.3.6.1
RUN Mode Inputs
The standard pneumatic tubing plate for the Model 9116 contains 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). See the Model 9116 Data
Sheet for detailed specifications. 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.
Warning: Introduction of contaminants or corrosive materials to the module
pneumatic inputs may damage module transducers, manifolds, and O-ring seals.