66
Pipe Saddle
(ref.)
Mounting
Adapter
Gasket
(ref)
15 3/4” *
4.23”
0.660”
Handtight Enga Wrench Makeup
Per ANSI/ASME B1.20.1-1993, R1992
* Pipe Sizes for reference only - Depending on pipe material, tapping
saddle, or existing hardware longer sensor length may be required -
Contact Factory.
3) Insertion depth is critical to accuracy. The algorithm used to convert impeller motion into flow was developed
through flow tests in an independent calibration laboratory. The impeller must be located in the same position in
the pipe as it was in the calibration test for the impeller frequency to accurately describe the same liquid velocity.
Detailed installation instructions on the following pages include methods for ensuring correct insertion depth.
4) Alignment of the sensor is also important. The impeller shaft must be perpendicular to the flow for accuracy.
Alignment instructions are also included on the following pages.
also requires six wires.
Installation for Direct insert models
These instructions are for the installation of flow sensors
into piping systems that are not under pressure at the time
of installation. If the line must be tapped under pressure, a
hot tap style sensor must be used. See following section
for hot tap installation instructions.
The insertion depth and alignment of the sensor are critical to the
accuracy of the flow measurement. The impeller must be at the
same location in the pipe as it was during calibration. Data Industrial
provides sensors with different stem lengths. Longer stems are
intended for use in larger diameter pipes and shorter stems for use in
smaller pipelines. However stem length has no affect on the operation
of the sensor provided that the impeller is positioned correctly in the
pipe.
Direct insert models are available in one stem length designated
D1. They are intended for nominal pipe diameters from 1 1/2” to 10”.
However, pipe with extra thick walls, existing linings, or unusual tap
-
ping hardware may require longer length sensors - Consult factory.
For larger pipe sizes hot tap style sensors equipped with an isolation
valves are recommended.
The preferred method of installation is by means of a saddle with 1”
NPT outlet. On steel pipelines a weld-on type fitting may be substi
-
tuted.
