Toshiba LQ300A00 Series Operation Manual page 26

[NOTE]
(1) When you install the density meter, see 3.3.4 Precautions When Installing the Density Meter.
(2) Install the density meter in a metal piping system.
When installing or removing the density
meter, insert or remove the applicator
mount section with its backside along the
mounting flange.
Extra care should be taken not to let the
applicators (antenna) hit against the flange
or the internal wall.
Make sure to mount the density meter
so that the applicators (antenna) face
upstream and in parallel with the
direction of the flow.
Flange standard:
Diameter
Refer to 3H8A6579 and 3H8A6580 for details.
3.2
A
(56.6)
1.5
JIS10K
100mm
Sch20
Deviation from piping system in
perpendicular direction: ±1.5° or less
Surface roughness: Ra3.2 minimum
A
Fig 3.3.4 Installation Precaution
231
589
Fluid to be measured
Section A expanded
Deviation of flange hole positions with respect to
the piping axial direction: ±2° or less
 24 
6 F 8 A 0 7 8 7
M8 screw tightening torque:
10.0 to 13.5N•m
(Tighten the screws evenly.)
shows flow direction
Density value display
Converter
Section A
Make sure that the O-ring groove and O-
ring itself are clean without dirt, dust or
cracks before installing the density meter.
Metal pipe or metal tank