Intek RheoVac DR - Manual (Page 6)

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SECTION 2 — INSTALLATION
2.1 INSTALLATION
These instructions are general guidelines for the installation of RheoVac DR instruments in their standard
configuration. Additional information pertaining to your unit is covered in SECTION 6 CUSTOM
INFORMATION. Carefully read these instructions prior to installing the equipment. Also, see
preceding SECTION 1.4 PRECAUTIONS AND RECOMMENDATIONS.
2.2 RheoVac DR SYSTEM INSTALLATION/SITE SELECTION
The RheoVac DR can be configured with one or two probes, with the two probe being the standard
configuration. In the standard two-probe configuration, the main probe (FTP) is the larger probe, and
the relative saturation (RS) sensor is located in a second probe, separate from the remaining primary
sensors in the FTP probe. The RS probe is typically installed in the same line at a location slightly
downstream of the FTP probe.
2.2.1 Probe Site Selection
The location for the probe pair should be selected so as to provide the probe sensing area
with well-established smooth flow, uniform system temperature and pressure, and consistent
non-liquid phase flow medium. Pipe sections ahead of a probe, in which water can
accumulate, must be avoided. Refer to Figure 2 and select the most preferred location for
the probe pair. Do not install the probes beyond any “trap” sections as shown in Figure 2,
Configurations B and D. Special installation instructions unique to your unit, where
applicable, will be noted in SECTION 6.3 SPECIAL INSTRUCTIONS. Refer to this section
now to review special instructions.
Check installation clearance. The installation location should allow sufficient clearance for
ease of probe removal (for servicing), including the required clearance space for the hot tap,
where used. Be sure there are no obstructions around the vacuum line that will interfere with
probe insertion. Figure 3 shows the proper insertion angle. THIS ORIENTATION IS
IMPORTANT FOR PROPER OPERATION, particularly if liquid water is expected to wet
the wall surfaces of the probe(s).
Observe the selected sites; check for ease of access. They should be convenient for the
removal and replacing probes at any time for service; without requiring ladders, building
scaffolding or waiting for plant shutdown.
Check operating conditions. The temperature and pressure limits (see TECHNICAL
SPECIFICATIONS; SECTION 1.3) of the unit should be checked to ensure compatibility
with your application.