ARO SCD501BN08-V Series Operator's Manual - Page 3
Browse online or download pdf Operator's Manual for Water Pump ARO SCD501BN08-V Series. ARO SCD501BN08-V Series 8 pages. Automatic dewatering system
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IV. Pneumatic connection between LLS , Tee and PCV:
1.
Cut the 6mm tube to an ap-propriate length and connect
the Tee of the PCV Module to the air inlet of the LLS.
2.
Repeat step 1 and connect the PCV to the air signal output-
port of the LLS.
3.
Finish all of the above steps to complete the installation.
NOTICE
The PNCV-1/2 PCV Module is compatible with 2" and 3" ARO
pumps. An adaptor (not supplied) may be used for compat-
ibility with smaller pumps.
The First Time
1.
Ensure the pump is installed properly.
2.
Connect the air supply 2-7 bar (29-101 psig) to the Tee of
the PCV Module (Female Rc 3/4"), see Figure 8.
3.
Adjust the air pressure on the LLS pressure regulator to 0.2
bar (2.9 psig).
4.
Cut the two sensing tubes to length. Connect these two
tubes to the High Level Sensing Tube Port fitting (marked as
"H") and Low Level Sensing Tube Port fitting (marked as "L"),
see Figure 7.
5.
Connect the Sensing Tube Filters to the end of the two
Sensing Tubes separately, see Figure 8.
6.
Install the High Level Sensing Tube with the open end
pointing downward and located below 5 to 10 cm (2 to 4
inches) the level where the start signal should occur.
7.
Install the Low Level Sensing Tube with the open end point-
ing downward and located below 5 to 10 cm (2 to 4 inches)
the level where the stop signal should occur.
NOTICE
Ensure the Testing step has been executed before installing
the above two sensing tubes.
Install a filter and regulator in order to improve the system's
stability and service life.
The length of the sensing tube should be close to the sum
of the distance between the pump and the liquid container
and the depth of the container.
If silt exists, ensure that the open end of the Low Level
Sensing Tube is 10 cm (4 inches) higher than the silt (de-
pending on the speed of the silt accumulation).
Testing
NOTICE
Ensure that the air supply pressure is between 2-7 bar
(29-101 psig) and that the LLS pressure is around 0.2 bar
(2.9 psig).
SCD501BN08-VXX (en)
INSTALLATION
Tee
Tee
OPERATING INSTRUCTIONS
1.
Prepare an open container with the water level higher than 15 cm
(6 inches).
2.
Place the Low Level Sensing Tube's open end to the bottom
of the container.
3.
Slowly Insert the High Level Sensing Tube's open end into
the water with a depth of 5-12 cm (2 - 5 inches). The pump
should start.
4.
Remove the High Level Sensing Tube from the water.
The pump should continue working.
5.
Slowly pull out the High Level Sensing Tube. The pump
should stop working when the open end approaches the
liquid level.
6.
The Automatic Dewatering Sytem should now be ready to
operate.
Changing the pressure has little effect on the liquid level
sensing point. Excessively increasing / decreasing the pres-
sure may render the system inoperable.
PCV
Air Inlet Port
Air Signal
Output Port
PCV
Figure 6
NOTICE
High Level Sensing
Regulator
Tube Port
Low Level Sensing
Tube Port
Figure 7
LLS
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