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prepare a loose mechanism in advance.
(9) To minimize the impact of the bubbles, it is
recommended that the meter be installed on a
location as far as possible from the pipe outlet for
air release but still within the distance where a
reasonable degree of hydraulic pressure is
applied.
(10) In the event that the density meter may no
longer be full of the fluid while the pump is shut
down or the density distribution in the density
meter may become uneven, make sure to take
measurements only while the pump is operating
by using the external synchronized function.
(11) Take necessary measures to prevent vibration
from a pump or other equipment applied to the
density meter transmitted through the piping.
(12) On both the upstream and downstream sides of
the density meter, install isolation valves.
Furthermore, between these valves and the
density meter, install the sampling port, the zero
water supply port, the air release port, the drain
port with a stop valve attached respectively. In the
event that the flow of the pipe line cannot be
stopped, provide a bypass pipe halfway with a
stop valve attached. When performing zero point
calibration, these are needed to discharge the
measured matter out of the density meter through
its drain port and fill up the meter with fresh water
of zero density. (See Figure 6 and Figure 7)
(13) As for gaskets to be used in piping, select the
one with the dimension conforming to the flange
standard and of the material appropriate for the
substance to be measured.
(14) The front side of the density meter's converter
section is equipped with a density display section.
When installing the meter, choose a location and
direction in which this density display section
will be easily visible.
(15) If the cover of the density meter is removed or
the density meter is disassembled while the meter
is powered, radio waves will leak out. (However,
the amount is about equal to PHS and one tenth of
mobile phones.)
(16) For both horizontal and vertical piping systems,
install a support stand under the density meter
with bolts put through the installation holes (M8
size) on the bottom of the density meter. Then
install the support stand together with the density
meter to a solid ground or wall. Bolts (four M8
bolts) are not attached as accessories of the
density meter. Please prepare these bolts
separately
NOTE:
• Zero point water valve:
Used to supply drinking water (density or consistency
0%) to the detector pipe for zero point adjustment.
Install this valve at the top of the pipe in the case of
horizontal installation. It is recommended that a 1-inch
ball valve be installed on the top of the pipe and zero
point water supplied through this inlet using a vinyl
hose etc.
Note: If valve water pipe is connected to this valve, air
cannot be extracted. Therefore, another valve (vent
valve) is needed to extract air.
• Vent valve:
Used to vent process fluids to open air when
performing zero adjustment. This helps the drinking
water (density or consistency 0%) enter the detector
pipe easily. Install this valve on the top of the pipe in
the case of horizontal installation.
• Drain valve:
Used to drain the fluids before supplying drinking
water (density or consistency 0%) to the detector pipe
for zero adjustment. Install this valve at the lowest
point of the pipe. It is recommended that a 1-inch ball
valve be installed at the lowest point of the pipe.
• Sampling valve:
Used to extract fluids for manual analysis. Install this
valve to the side of the pipe in the case of horizontal
installation. It is recommended that a 1-inch ball
valve be installed to the side of the pipe.
Stop valve
Stop
valve
LQ500
Bypass
pipe
Stop valve
Flow direction
(from down to up directions)
Figure 6. Recommended Installation
(vertical installation)
LQ500
Figure 7. Horizontal installation
(*inside the pipe is always filled)
LQ500
Vent valve
Zero point water pipe
Zero point water valve
Drain valve
Drain pipe
EJL-106J
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