Humboldt HM-4155 Manuel utilisateur
product manual
HM-4155_MAN_0812
HM-4155, HM-4154
3-Cell Auto Control Panel
1-Cell Auto Control Panel
INTRODUCTION
The HM-4155 Pressure Control/Distribution Panel controls the
distribution of air pressure, vacuum, tap water, and de-aerated water
to support up to three triaxial test apparatuses. The distribution panel
has controls to transfer water in and out of the de-airing tank as well as
vacuum and pressure to the de-airing tank. It also provides a drain for
the de-airing tank. It regulates system air pressure for the HM-2450A
Automatic Pressure Controller. There are air pressure port connections
for up to three automatic pressure controllers. There are also port
connections for tap water and de-aerated water for the cell and sample
which can be connected through the HM-4151A Air Bladder Cylinders
and HM-2315 Automatic Volume Change Device for up to three triaxial
tests simultaneously. An auxiliary pressure regulator supplies up to 10
psi air pressure for the de-airing tank and an auxiliary pressure port
connection. It also has an auxiliary vacuum port connection. There is
an inline air filter for the main air supply. A supply of compressed air is
necessary as well as vacuum, tap water, and a drain to allow water to be
removed from the test apparatus.
INSTALLATION
The HM-4155 is a simple, free standing bench mounted system which
requires no fixed mounting.
PANEL MOUNTING
A pair of supporting feet is supplied with the panel so that it can be
bench mounted and remain stable. Screws, nuts, and washers for the
support feet are supplied so that the support feet can be attached as
shown in Figure 1.
AIR/WATER CONNECTIONS
All connections will require either 1/4 inch OD or 1/8 inch OD flexible
tubing. However, metric adapters are available to allow connecting the
¼ inch tubing to 6 mm tubing.
PANEL CONNECTIONS
The panel is equipped with push-to-connect style fittings on the back
side of the panel frame. It is necessary to use ¼” OD flexible tubing to
make the connections. Figure 2 shows how the connections are to be
made with air and water sources as well as connections to the triaxial cell
and other equipment. The panel is designed to accommodate 3 triaxial
test apparatuses simultaneously. However, only the connections for one
triaxial test apparatus are shown in the figure. The two remaining test
apparatuses connect to their respective connection locations. Insert the
tubing into the fittings. The seal in the fitting will resist the tubing and
a little extra force will be required to get the tubing to pass through the
seal in the fitting. To make sure the tubing is in all the way, lightly pull on
the tubing. If it comes out of the fitting, it was not inserted completely.
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2
While facing the back of the panel, the four connections starting from
the left are for the water drain, tap water input, vacuum input, and
compressed air input respectively. The last three connections are for
de-aerated water return from the de-airing tank, tap water going to the
de-airing tank, and air/vacuum to the de-airing tank respectively.
On the face of the panel are the connections for air pressure outputs to
the HM-2450A Automatic Pressure Controllers, tap water and
de-aerated water for the HM-4151A Air/Water Bladder Cylinders,
HM-2315 Automatic Volume Change, and the triaxial cell. Also, there
is an auxiliary pressure connection for air pressure up to 10 psi and an
auxiliary vacuum connection. These connections are made using quick
disconnect style fittings. These fittings have a barbed end which fits
into the tubing and a nut which fits over the tubing to clamp the tubing
on to the barbed end of the fitting. To disconnect the fittings from the
panel, push down on the tab at the top of the socket half of the fitting
as shown in Figure 3. The plug half of the fitting will pop outward. To
reconnect it, just push the plug into the socket until the tab clicks and
locks the plug in place. The connection for the tap water to the base
of the sample via the volume change device requires a ¼ inch to 1/8
inch push-to-connect adapter to allow the attachment of ¼ inch tubing
from the panel to the 1/8 inch OD tubing which connects to the volume
change device. This adapter is supplied with the panel.
BLADDER CYLINDER CONNECTION
The HM-4151A Air/Water Bladder Cylinders have push to connect
style fittings at the bottom of the assembly. These fittings use the ¼
inch OD tubing and attach the by the same method as the fittings on
the back side of the panel. The right fitting is for air pressure from the
Automatic Pressure Controller. The other push-to-connect fitting is for
water from the connections on the front of the panel. There are two
bladder cylinders required per triaxial cell. One bladder cylinder is for
cell pressure and tap water supply, the other cylinder is for back pressure
and de-aerated sample water supply. The air pressure line for one of the
bladder cylinders will connect to the Cell air pressure connection on the
back of the HM-2450A Automatic Pressure Controller and the water line
for that bladder cylinder will connect to the Bladder A connection on
the front of the panel. The air line for the second bladder cylinder will
connect to the back pressure connection on the back of the HM-2450A
Automatic Pressure Controller and the water line for the second bladder
cylinder will connect to the Bladder B connection on the front of the
panel as shown in Figure 2.
AUTO VOLUME CHANGE CONNECTION
The HM-2315 Automatic Volume Change Device has push-to-connect
fittings for 1/8 inch OD tubing. The volume change device is connected
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to the panel at the Base connection on the front of the panel as shown
in Figure 2. The connection for the tap water to the base of the sample
via the volume change device requires a ¼ inch to 1/8 inch push-to-
connect adapter to allow the attachment of ¼ inch tubing from the
panel to the 1/8 inch OD tubing which connects to the volume change
device. This adapter is supplied with the panel. The Automatic Volume
Change device also connects to the solenoid valve on the triaxial cell as
shown in Figure 4. The solenoid valve has a compression fitting.
TRIAXIAL CELL CONNECTION
The triaxial cell has compression fittings on the front as shown in Figure
4. The Cell connection on the triaxial cell (valve V3 in Figure 4) connects
to the Cell port connection on the front of the panel (see Figure 2).
DE-AIRING TANK CONNECTION
The de-airing tank has connections for the tap water in, de-aerated
water out, and air/vacuum lines. These lines connect to the back side of
the panel at the corresponding push-to-connect fittings located adjacent
to the input connections for compressed air, vacuum, tap water, and
drain.
ELECTRICAL CONNECTION
There are no electrical connections required on the HM-4155
Distribution Panel.
OPERATION
After making all of the necessary connections, check to make sure all
of the valves on the front of the panel are set to the off position. Also,
loosen the jam nuts on the regulators as shown in Figure 3.
AIR PRESSURE ADJUSTMENT
There are two separate regulators on the panel. The main regulator,
located below the gauge labeled SYSTEM AIR PRESSURE, controls the
supply of air for all air connections on the front of the panel and also for
the auxiliary regulator. The auxiliary regulator labeled AUXILIARY AIR
PRESSURE in the upper right corner controls the air pressure up to 10
psi for the auxiliary air pressure port and for the de-airing tank to assist
in draining the de-airing tank. This regulator has a locking knob which
must be pulled out to adjust the pressure or pushed in to lock it into
position (Figure 5).
AIR/WATER CONTROL VALVES
There are several control valves on the panel for on/off operation of
the air and water control. There are two valves under the De-Airing
Tank heading (Figure 6). These valves control flow of water to and from
the de-airing tank and air or vacuum to the tank. The water flow valve
either allows tap water to fill the tank or allows the tank to be drained
for cleaning and maintenance. The other valve is for the application of
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vacuum to the de-airing tank to remove air from the water in the tank
and it also allows compressed air to be pumped into the tank to assist in
draining the water from the tank. The small auxiliary regulator controls
the amount of pressure to assist in draining the water from the de-airing
tank (Figure 5). Set the desired pressure by turning the knob on the
auxiliary regulator in the clockwise direction.
NOTE: These valves must be in the off position during a test.
There are three valves under the AIR CONNECTION heading (Figure 7)
on the front of the panel (one valve per triaxial cell). These valves allow
air pressure to flow to the HM-2450A Automatic Pressure Controllers.
These valves will be either in the on or off position.
There are six valves under the WATER CONNECTION heading. There
are two valves for each triaxial cell apparatus. One of the two controls
the flow of tap water to the cell and to the corresponding bladder
cylinder and the other controls the flow of de-aerated water to the Auto
Volume Change and to the other bladder cylinder in the apparatus
(Figure 8). When the valve for the cell is in the FILL position, water
flows to the cell and bladder cylinder at the same time. When the
valve labeled PWP is in the FILL position, de-aerated water flows to the
sample base through the Automatic Volume Change and to the second
bladder cylinder at the same time. The CELL valve has a drain position
which allows water to be drained from the cell.
NOTE: These valves should be in the off position during a test.
The valve is in the off position when the knob is pointed to the left
towards the quick connect sockets.
PRESSURE GAUGES
There is one pressure gauge on the panel. The gauge at the upper left
side is used to monitor the pressure regulated by the main pressure
input regulator. It is a mechanical gauge and requires no electrical
source.
AIR FILTER
There is an in-line air filter which filters the incoming air from the
compressed air source. It also traps water and other fluids in the line.
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MAINTENANCE
There is very little maintenance required.
The air filter should be checked every day to determine if the white filter
element is dirty or if fluid must be drained from the clear plastic bowl.
To remove water or fluids from the bowl, turn the black knob at the
bottom of the clear plastic bowl. To purge the fluids from the bowl, turn
the knob as if tightening a right handed screw and the fluids will drain
out of the bottom. To close it, turn the knob as if loosening the screw.
Caution: The filter may be under pressure. If so, the fluids will spray
out at high velocity.
If the filter becomes dirty and clogged, open the drain plug as described
above to relieve pressure. Remove the bowl by rotating the bowl
counterclockwise to unscrew it from the filter body. Be careful not to lose
or damage the o-ring that seals the bowl to the body of the filter. Next,
unscrew the filter support by turning it counterclockwise until it comes
off. Slide the filter element off of the support and replace it with a new
filter. Reassemble the air filter assembly in the reverse order.
SERVICE
Please contact Humboldt for service: 1-800-544-7220.
FIGURE 1
MOUNTING FEET ASSEMBLY
8-32 UNC NUT WITH WASHER
8-32 UNC MACHINE SCREW
Figure 1: Mounting Feet Assembly
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Figure 2
HM-2310.20
DISPLACEMENT
TRANSDUCER
HM-4187A.3F
DE-AIRING TANK
HM-4155
AIR/WATER
DISTRIBUTION
PANEL
HM-2300.020
LOAD CELL
HM-4199B
TRIAXIAL CELL
HM-4170
PWP
HM-3000
DIGITAL
MASTER
LOADER
HM-2450A
AUTOMATIC PRESSURE CONTROLLER
HM-2315
AUTOMATIC
VOLUME
CHANGE
DEVICE
HM-4151A
BLADDER AIR/WATER CYLINDER
HM-2310.10
DISPLACEMENT
TRANSDUCER
HUMBOLDT MFG. CO.
FULLY AUTOMATED 3 TRIAXIAL CELL SYSTEM
COMPRESSED
AIR
VACUUM
TAP
WATER
DRAIN
TO BASE VALVE
TO CELL VALVE
FIGURE 2
6
LOOSEN JAM NUT
PRIOR TO ADJUSTING
AIR PRESSURE
PUSH DOWN
TO RELEASE
CONNECTOR
FIGURE 3
Figure 3
Figure 4 Triaxial Cell
BASE WATER CONNECTION
DISTRIBUTION PANEL
SOLENOID VALVE
PORE WATER
PRESSURE
TRANSDUCER
V1
V2
V3
V4
V5
VENT VALVE
LEVER
FIGURE 4
AUTO VOLUME CHANGE CONNECTION
Figure 6
Figure 5
AUXILIARY AIR PRESSURE
AUXILIARY VACUUM
AIR
PRESSURE
VACUUM
FILL DRAIN
DE-AIRED WATER
OFF
POINT THE KNOB
TO THE RIGHT
TO APPLY PRESSURE
TO THE DE-AIRING TANK
ROTATE THE KNOB
CLOCKWISE TO
INCREASE PRESSURE
TO THE DE-AIRING
TANK & TO THE
AUXILIARY AIR
CONNECTOR
FIGURE 5
REGULATING AUXILIARY AIR PRESSURE
FIGURE 6
DE-AIRING TANK CONTROL VALVES
DE-AIRED WATER
FILL DRAIN
OFF
VACUUM PRESSURE
TURN KNOB LEFT
TO FILL DE-AIRING
TANK WITH TAP WATER
OR
TURN KNOB RIGHT TO
DRAIN DE-AIRING TANK
TURN KNOB LEFT TO
APPLY VACUUM TO
DE-AIRING TANK
OR
TURN KNOB RIGHT TO
APPLY PRESSURE TO
ASSIST DRAINING
OF DE-AIRING TANK
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Figure 7
Figure 8
AIR CONNECTION
CONTROLLER
ON
OFF
POINT KNOB LEFT
TO APPLY AIR
PRESSURE TO THE
AUTOMATIC PRESSURE
CONTROLLER
FIGURE 7
AIR PRESSURE CONTROL VALVE
WATER CONNECTION
CELL
BLADDER
A
FILL
DRAIN
BASE
BLADDER
B
FILL
CELL
PWP
FIGURE 8
CELL AND SAMPLE BASE WATER CONTROLS
TURN KNOB UP
TO FILL CELL AND
BLADDER CYLINDER "A"
WITH TAP WATER
TURN KNOB DOWN
TO DRAIN CELL
AND BLADDER
TURN KNOB DOWN
TO FILL SAMPLE AND
BLADDER CYLINDER "B"
WITH DE-AERATED
WATER
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Ce manuel convient aux modèles suivants
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