Table of Contents
Advertisement
3.3.6 ORBISPHERE flow chambers
The ORBISPHERE 32001.xxx flow chambers are used to draw liquid and gaseous samples past the
sensor. They are available in several materials, depending on the application. Refer to
Figure
10.
They connect to 6-mm or ¼" stainless steel tubing by means of two Swagelok
copper or plastic tubing with low permeability can be substituted. Stainless steel tubing is normally
enough to hold the assembly in place, but for a more stable installation, a large U-bolt can be used to
mount the flow chamber to a support.
The dimensions of the sensor and flow chamber assembly are:
• Width: 50 mm (1.97 in.)
• Height: 210 mm (8.27 in.) (add 100 mm (3.94 in.) for connection length)
Sample
Gaseous or liquid
media
Gaseous media, with
occasional liquid or
vapor
The connection diagram below is a recommended installation that allows for measuring and
calibrating without having to disconnect a line manually. "A" and "B" represent 3-way valves.
For measuring, calibration gas inlets and outlets are shut off. During calibration, the flow is reversed
to drive the remaining sample out. The calibration gas enters at the "sample out" port and exits at the
"sample in" port. Refer to
Figure 10 ORBISPHERE flow chamber
18 English
Table 7 Flow Chamber Orientation
Orientation of flow chamber
Vertically, with connections down and sensor
up
• Center connection is the inlet
• Outer connection is the outlet
Horizontally, to allow for drainage
• Center connection (inlet) must be up
• Outer connection (outlet) must be down
Figure
11.
Table 7
and
™
fittings. If necessary,
Advertisement
Table of Contents
