Dynasonics MFX Series Insertion MagProbe Flow Meter - Manual (Page 26)

Rev. 01/11 -2.1- MFX
After unpacking, it is recommended to save the shipping carton and
packing materials in case the instrument is stored or re-shipped.
Inspect the equipment and carton for damage. If there is evidence of
shipping damage, notify the carrier immediately.
The DMP insertion probe that is utilized by the MFX flow meter
system contains an electromagnet, electrodes and amplification
circuitry. Three electrodes, two measurement and one ground, are
located in the black Ultem
®
plastic tip of the probe and are designed
to be inserted to the average fluid velocity point within a pipe. Not all
liquid within a pipe is flowing at a uniform fluid velocity, but a long
straight run of pipe, full of flowing liquid, contains a predictable liquid
velocity profile. By selecting proper upstream and downstream
lengths of straight pipe from the probe installation point and by
making precise insertion depths into the pipe, very accurate and
reliable volumetric flow rates and totals can be obtained.
Select a probe mounting location with adequate straight runs
(without disturbances) of pipe, both upstream and downstream, to
achieve stable and accurate readings. Examples of minimum
upstream and downstream requirements are included in Table 2.1.
Note that if adequate straight plumbing cannot be provided, the
MFX system will operate repeatably, but will probably not achieve
specified accuracy and will likely provide less stable readings.
When installing the DMP probe in a
horizontal pipe, the preferred
orientation is between 1 and 5 o’clock
on the pipe—assuming 12 o’clock as
the top. See Figure 2.1. Ensure that
the mounting location allows for
adequate clearance to install and
retract the probe fully from the pipe.
PART 2 - MAGPROBE INSTALLATION
MagProbe
Mounting
Considerations
Step A -
Mounting
Locations
Figure 2.1
Horizontal Installation
Top View of Pipe