OPERATING MANUAL
VACUUM/PRESSURE STATION
MODEL NO. 400-3901 (115V AC)
MODEL NO. 400-3902 (230V AC)
Barnant Company
28W092 Commercial Avenue
Barrington, Illinois U.S.A. 60010-2392
(847) 381-7050
(847) 381-7053 (Fax)
800-637-3739
www.barnant.com
e-mail: barnant@barnant.com
A-1299-0360
Edition 06
EU Declaration of Conformity
Name of Apparatus: Vacuum/Pressure Station
Model Number: 400-3902
Description of Apparatus: Vacuum/Pressure Pump
Barnant Company declares that the above model is in conformity
to the following harmonized standards and directives:
Applicable Applicable Manufacturer’s
Directives Specifications Report Number
73/23/EEC EN61010-1/A2:1995 TR9528
93/68/EEC
89/336/EEC EN61326-1/A1:1998 TR9529
92/31/EEC
93/68/EEC
The last two digits of the year in which the current configuration
of the above model was assessed per the Low Voltage Directive
is: 00.
Manufacturer: Barnant Company Division
Cole-Parmer Instrument Company
28W092 Commercial Avenue
Barrington, IL 60010-2392
USA
Tel.: 847-381-7050
Manufacturer’s
Signature:
27 October, 2000
James W. Doll Date
Vice President, Engineering
WARRANTY
The Manufacturer warrants this product to be free from significant
deviations from published specifications. If repair or adjustment is
necessary within the warranty period, the problem will be corrected at
no charge if it is not due to misuse or abuse on your part as determined
by the Manufacturer. Repair costs outside the warranty period, or those
resulting from product misuse or abuse, may be invoiced to you.
The warranty period for this product is noted on the Warranty Card.
PRODUCT RETURN
To limit charges and delays, contact the seller or Manufacturer for
authorization and shipping instructions before returning the product, either
within or outside of the warranty period. When returning the product,
please state the reason for the return. For your protection, pack the
product carefully and insure it against possible damage or loss. Any damages resulting from improper packaging are your responsibility.
TECHNICAL ASSISTANCE
If you have any questions about the use of this product, contact the
Manufacturer or authorized seller.
Printed in U.S.A.
061000
15
REPLACEMENT PARTS LIST
Item Part No.
O-ring, regulation valves B-1169-0011
Ball, regulation valves A-3988
Spring, regulation valves A-3789
Vacuum regulation valve assembly B-2067
Pressure regulation valve assembly B-2066
Manifold Chamber Assy (with valves) D-1819
Vacuum/Pressure gauge B-2898
Rocker switch B-1084-90
PUMP HEAD REPLACEMENT PARTS LIST
Item Part No.
Service Kit (Nitrile diaphragm, two retainers, 401-0050
two valves and plastic head)
Service Kit (FLUOREL®diaphragm, two retainers, 7530-04
two valves and plastic head)
Eccentric Assembly (eccentric and bearing) 7530-75
Set Screw for Eccentric Assembly B-1079-0121
Diaphragm Clamp B-1352-0012
SPECIAL APPLICATIONS
Technical information and advice concerning the use of this product in specific applications may be obtained from our Engineering Department. If volume justifies, modifications can be made to adapt the unit to special customer applications. OEM inquiries are welcome and encouraged.
NOTE
The BARNANT COMPANY reserves the right to make improvements in
design, construction and appearance of our products without notice.
14
TABLE OF CONTENTS
Title Page
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Grounding Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
PUMP HEAD REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . .14
SPECIALAPPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
NOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
PRODUCT RETURN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
TECHNICALASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
FLUOREL - Reg TM Dyneon LLC
NORYL - Reg TM General Electric Co.
Trademarks bearing the ® symbol in this publication
are registered in the U.S. and in other countries.
3
SAFETY PRECAUTIONS
DANGER: Improper use of grounding plug can result in a risk of electric
shock.
DANGER: Unplug power cord before any cleaning operation is started.
WARNING: Gas under pressure should not be used for supply as a haz-
ardous bursting condition could develop in the pump head.
Use only gases contained at atmospheric pressure.
CAUTION: Do not operate pump when pressure ports of both heads are
in a blocked condition.
4
13
VALVE BODY
VALVE BODY
BALL
BALL
SPRING
SPRING
O-RING
O-RING
ADJUSTMENT SCREW
ADJUSTMENT SCREW
PRESSURE REGULATION VALVE
VACUUM REGULATION VALVE
FIGURE 4
The regulation valves should be occasionally inspected for contamination
(frequency depends upon the application) by removing the adjustment
screw, spring and ball from each valve body—see Figure 4. Look for dirt or
grit around the venting holes in the adjustment screw and the valve body
and around the valve seating surfaces. These areas can easily be cleaned
with a cotton swab or clean cloth.
If vacuum cannot be regulated by adjusting the “VACUUM ADJUST” valve,
the valve’s O-ring has probably been damaged. Remove the adjustment
screw and replace the O-ring with a new one, Part No. B-1169-0011.
Always use caution when disassembling the regulation valves to avoid losing the valve ball and spring after the adjustment screw has been removed.
When reassembling, remember that in the “VACUUM ADJUST” valve, the
spring goes back in first, followed by the ball and the adjustment screw and
in the “PRESSURE ADJUST” valve, the ball must go in before the spring.
HELPFUL HINTS
1) If it is necessary to draw a vacuum or pressurize two lines simultane-
ously, the plastic pipe plug in the “AUXILIARY” port can be replaced by
any tube fitting with a standard 1/4 NPT male pipe thread on one end.
Be sure, however, to use a pipe thread sealant or tape on the male
thread to insure a leak-free fit.
2) The Station has been designed so the pump head can be serviced with-
out removing the pump from the Station.
3) The easiest way to remove the silicone tubing from a barbed fitting is to
grasp the tubing around the fitting and twist it back and forth two or
three times. This releases the natural vacuum between the tube and the
fitting and minimizes stretching of the tubing.
4) The regulation valves can be adjusted with any narrow, flat instrument
such as a small coin or head of a key if a screwdriver is not available.
12
DESCRIPTION
The Vacuum/Pressure Station is designed to provide a convenient,
portable source of regulated vacuum and/or pressure for bench-top laboratory or commercial use. Each function is regulated independently by
clearly identified valves and the easy-to-read compound function gauge
eliminates the need for an elaborate plumbing network. The convoluted
diaphragm and the unique head cavity of the pump are designed to provide
extended diaphragm life by minimizing stress, wear and heat buildup. This
has been done while ensuring and optimizing pressure and vacuum characteristics. The brushless pump motor is totally enclosed, thermally protected and has sealed ball bearings. No regular maintenance of the motor
is required. Asix foot long, three conductor power supply cord is supplied
with the unit and the 115V AC motor is a U.L. recognized component.
Figure 1 shows the typical flow characteristics of the 115V station as related to pressure and vacuum. The corresponding flow data for the 230V station are 5/6 of the values shown in Figure 1. Also note that, even though
model 400-3902 is designed for 50 Hz applications, it can be run on 230V
AC, 60 Hz line current. In this condition, the flow data will equal that of the
400-3901 station but available torque will decrease. All units are intended
to be started without load (both ports open to atmosphere). If either a vacuum or pressure exists, the pump may not start.
Always consider material compatibility before running any service through
the Vacuum/Pressure Station.
The Materials in contact with the service are as follows:
1) Pump — NORYL®(polyphenylene oxide), nitrile and PTFE fluorocarbon.
2) Manifold chamber and fittings — PVC, silicone, linear polyethylene
and stainless steel 303.
3) Pressure/Vacuum Gauge — Bronze tubing and brass socket.
5
OPERATING INSTRUCTIONS
The pump supplied with the Vacuum/Pressure Station must always be
plugged into a grounded outlet. Both models are supplied complete with a
grounded plug and an on-off rocker switch.
Grounding Instructions
This product should be grounded. In the event of an electrical short circuit,
grounding reduces the risk of electric shock by providing an escape wire
for the electric current. This product is equipped with a cord having a
grounding wire with an appropriate grounding plug. The plug must be
plugged into an outlet that is properly installed and grounded in accordance
with all local codes and ordinances.
DANGER: Improper use of grounding plug can result in a risk of electric
shock.
6
FIGURE 1
INLET MANIFOLD
VACUUM (IN Hg)
OUTLET MANIFOLD
PRESSURE (PSIG)
NOTE: 0 IN Hg = ATMOSPHERE
20 15 10 5 0
0 5 10 15 20
INLET
PUMP
VACUUM
(IN Hg)
100%
80%
60%
40%
20%
100%
80%
60%
40%
20%
AIR FLOW CAPACITY
OUTPUT
PUMP
PRESSURE
(PSIG)
0
5
10
15
10
15
5
0
SPECIFICATIONS (CONT.)
Models 400-3901 and 400-3902
Operating Temperature Range: 0° to 40° C (32° to 104° F)
Humidity Range: 10% to 90% non-condensing
Altitude: Less than 2000 m
Pollution Degree: Pollution Degree 2 per IEC 664
(Indoor usage - lab, office)
Enclosure Rating: IP 20 per IEC 529
Weight: 4.1 kg (9 lbs)
Installation Category: Installation category II
per IEC 664
(Local level, appliances,
portable equipment, etc...)
Compliance: 115V: UL508, CSA C22.2,
No. 14-M91
230V (For CE Mark):
EN61010-1/A2: 1995
(EU Low Voltage Directive) and
EN61326-1/A1: 1998
(EU EMC Directive)
MAINTENANCE
DANGER: Unplug power cord before any cleaning operation is started.
For diaphragm replacement, disassemble top part of the Pump Head. Then
unscrew the diaphragm and install the new diaphragm. Reassemble the
Pump Head. It is good practice to replace the Pump Head when the
diaphragm is replaced. This ensures new, clean valves and maximum performance. Dirty valves will reduce performance.
Do not disassemble the pump housing from the motor. Proper assembly
(factory-adjusted) is critical for proper pump performance.
Keep the pump enclosure clean by using a mild detergent solution. Never
immerse nor use excessive fluid when cleaning the pump.
11
10
SPECIFICATIONS
MODEL NO. 400-3901 400-3902
Power 115 +/- 10%, V AC, 60 Hz, 1.5A 230 +/- 10%, V AC, 50 Hz, 0.75A
Air Capacity (Vac.) 1050 Cu. Inch per min 900 Cu. Inch per min
Air Capacity (Press.) 900 Cu. Inch per min 750 Cu. Inch per min
Max. Pressure 12/18 psig* 12/18 psig*
Max. Suction 20 Inches Hg** 20 Inches Hg**
Housing Dimensions 7
1
/2 in L x 8 in W x 8
3
/4 in H 7
1
/2 in L x 8 in W x 8
3
/4 in H
Air capacity will depend on the application. Refer to Figure 1. It indicates the approximate flow with various input
and output conditions.
*Recommended Pressure: 12 psig Max.; continuous duty / 18 psig Max.; intermittent duty
**Recommended Vacuum: 20 in Hg continuous or intermittent
If repair or replacement of the cord or plug is necessary , do not connect the
grounding wire to either flat blade terminal. The wire with insulation having
an outer surface that is green with or without yellow stripes is the grounding wire. Check with a qualified electrician or serviceman if the grounding
instructions are not completely understood, or if in doubt as to whether the
product is properly grounded. Do not modify the plug provided; if it will not
fit the outlet, have the proper outlet installed by a qualified electrician.
This product is for use on a nominal 120 volt circuit for Model 400-3901 and
a 230 volt, 50 cycle circuit for Model 400-3902. Model 400-3901 has a
grounding plug that looks like the adapter illustrated in Figure 2(A). Atemporary adapter, which looks like the adapter illustrated in Figure 2(B) and
(C) may be used to connect this plug to a 2-pole receptacle as shown in
Figure 2(B) if a properly grounded outlet is not available. The temporary
adapter should be used only until a properly grounded outlet, Figure 2(A),
can be installed by a qualified electrician. The green colored rigid ear, lug
or the like extending from the adapter must be connected to a permanent
ground such as a properly grounded outlet box cover. Whenever the
adapter is used, it must be held in place by a metal screw.
7
FIGURE 2
GROUNDED OUTLET
ADAPTER
METAL
SCREW
COVER OF GROUNDED
OUTLET BOX
GROUNDING PIN
ADAPTER
GROUNDING
MEANS
(A)
(B)
(C)
Extension Cords
Use only a 3-wire extension cord that has a 3-blade grounding plug and a
3-slot receptacle that will accept the plug on the product. Make sure your
extension cord is in good condition. When using an extension cord, be sure
to use one heavy enough to carry the current your product will draw. An
undersized cord will cause a drop in line voltage resulting in loss of power
and overheating. The correct size to use depending on cord length and
nameplate ampere rating is No. 18 AWG, 3 conductor up to 100 feet. If in
doubt, use the next heavier gage. NOTE: The smaller the gage number,
the heavier the cord.
Operation (see Figure 3)
For pressure delivery , the manifold port marked “TO PUMP” should be connected via the 9 inch long tube to the pump port marked “FOR PRES-
SURE,” with pressure regulated by the valve marked “PRESSURE
ADJUST.” The “INPUT/OUTPUT” port should be connected to suitable
containers for receiving pressurized air or gas. If a medium other than
ambient air is to be pressurized, the source of supply should be connected
to the pump inlet port marked “FOR VACUUM.”
WARNING: Gas under pressure should not be used for supply as a haz-
ardous bursting condition could develop in the pump head.
Use only gases contained at atmospheric pressure.
CAUTION: Do not operate pump when pressure ports of both heads are
in a blocked condition.
To draw a regulated vacuum from a source, first, connect the source of
supply to the port marked “INPUT/OUTPUT” and then connect the “TO
PUMP” port to the pump inlet, marked “FOR VACUUM.” If the
Vacuum/Pressure Station was previously used for pressure delivery, be
sure all pressures are relieved before disconnecting tubing from the “FOR
PRESSURE” and/or the “INPUT/OUTPUT” port(s). This can be done best
by stopping the pump and gradually relieving pressure by turning the
“PRESSURE ADJUST” valve screw counterclockwise until the gauge
reads zero.
The motor is supplied with an internal thermal overload switch which may
trip if something happens to the pump. If this should occur, check the pump
to ensure that everything is normal. Allow motor to cool for approximately
30 minutes, then restart. If overload trips again, return the complete unit to
your dealer for repair. Refer to return policy in back of manual.
DANGER: Unplug power cord before any cleaning operation is started.
8
Loading...