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CLASSIC
®
800 Product Manual
Installation Guidelines
III. GUIDELINES FOR PIPE MOUNTING
The CLASSIC 800 is a flow, point level, interface and temperature sensing device. The sensor tip must be
inserted in the proper location and to the proper depth in order to accurately react to your process conditions.
The following information, including Figures 8 through 13, should be considered as text book examples for proper
installation.
Notes:
Most pipe connections for instrumentation are a variation of a butt-weld-type such as the Weldolet or
Thredolet. The length of this connection must be added to the pipe diameter when determining the
required insertion length for the sensor. The Kayden literature refers to this “insertion length” dimension
as the “U” length, Figures 8 & 9.
Horizontal Pipe
- Side Mount (Ideal)
As shown in Figure 10a, ensure the sensing tip is inserted to a point between 5% and 75% of the inside diameter
of the pipe. Avoid locations where sediment may accumulate and isolate the sensing tip from the process.
Horizontal Pipe
- Top Mount
Gas will always collect at the top of any pipe, ensure sensing tip is inserted to a point where it will be constantly
and fully exposed to the desired process media.
Horizontal Pipe
- Bottom Mount
Because sediment will collect at the bottom of any pipe, ensure sensing tip is inserted to a point where it will be
constantly and fully exposed to the desired process media. Avoid locations where sediment may accumulate and
eventually isolate the sensing tip from the process.
30% ideal
50% maximum
5% minimum
35% to 65% max
50%
35% to 45% max
Lag
Figure 9 - Insertion ‘U’ Length
Figure 8 - Insertion ‘U’ Length (Flanged)
Figure 10b - Horizontal Pipe,
Top / Bottom Mounting
Figure 10a - Horizontal Pipe,
Side Mounting
Lag
Insertion Length
Insertion Length
‘U’ Length
‘U’ Length
