Installation, Operation, and Maintenance
Balston HFX-3 and HFX0-3 Nitrogen Generators
®
Figure 1 - Overall Dimensions,
Model HFX0-3 (Model HFX-3 does
not have an Oxygen Analyzer)
General Description
Engineered System
Left Side View
These instructions must be thoroughly read and understood before installing and operating
this product. Failure to operate this product in accordance with the instructions set forth in
this manual and by other safety governing bodies will void the safety certification of this
product. If you have any questions or concerns, please call the Technical Services Department at 800-343-4048, 8AM to 5PM Eastern Time (North America only) or email at
balstontechsupport@parker.com. For other locations outside North America, please contact
your local representative.
The Balston Nitrogen Generator is a completely engineered system which will convert a compressed air supply into 95% to 99% purity compressed nitrogen and (optionally) monitor the purity
of the emergent nitrogen stream. The system is based on state-of-the-art membrane separation
technology. Hollow fiber membranes are used to separate air into a concentrated nitrogen output
stream and an oxygen enriched permeate stream. To monitor the purity of the nitrogen stream,
Parker has incorporated an oxygen analyzer into the design of its HFX0-3 Nitrogen Generation
System.
The Balston HFX0-3 Nitrogen Generator has been certified to IEC 1010 Standards (CSA 22.2
No. 1010.1-92). These generators bear the CSA safety marking on the product label.
The Balston HFX and HFX0-3 Nitrogen Generators include all the components required to generate
high purity nitrogen from compressed air and monitor the purity of that nitrogen (see Figure 1). The
flow schematic (Figure 2) shows all of the major components of the system. The system can be
broken down into five primary functional groups. These are: prefiltration, air separation, controls,
final filtration, and nitrogen purity monitoring (Model HFX0-3 only). An oxygen analyzer is also
available as a separate accessory for the HFX-3 (P/N 72-730).
Front View
Right Side View
For assistance, call toll-free at 800-343-4048
Parker Hannifin Corporation Bulletin TI-HFX-3D
1
Page 2
Description
Prefiltration
Air Separation
Final Filtration
Figure 2 - Flow
Schematic
Two stages of coalescing prefiltration are incorporated into the Balston HFX-3 and HFX0-3 Nitrogen
Generator to protect the membrane module from contamination. These filters are located behind the
filtration access panel, and they remove liquids and particulate matter from the incoming air supply.
The filters are equipped with float drains which automatically open to empty any liquids accumulated
inside the filter housing. The drains are connected to 1/4" O.D. plastic tubing which discharges to
atmosphere at the back of the nitrogen generator (see Figure 1).
Air separation takes place in the membrane module. This module consists of bundles of hollow fiber
membranes. The compressed air enters the center bore of these fibers and travels the length of the
fibers. As the air passes through these hollow fibers, oxygen and water molecules pass through the
membrane wall at a higher rate than nitrogen molecules. The result is a high purity, dry nitrogen gas
exiting the membrane module through the outlet. The oxygen enriched permeate stream exits the
membrane module through ports on the side of the module at a very low pressure.
Final filtration consists of a .01 micron (absolute) membrane filter. The final membrane filter will assure
the user a clean, commercially sterile supply of high purity nitrogen.
Model HFX-3
Model HFX0-3
2
Parker Hannifin Corporation Bulletin TI-HFX-3D
Page 3
Description
!
Controls
Oxygen Monitoring
The controls in the Balston Nitrogen Generator comprise: an operating pressure gage, a
flowmeter, a flow control valve, an outlet pressure gauge, and a pressure regulator (see Figure
1). Proper use of these controls will assure the user of a 95% to 99% nitrogen outlet stream,
depending on operating pressure and flow rate. The pressure gages, which are mounted on the
front panel, measure operating pressure and outlet pressure. The flowmeter measures the flow
rate of nitrogen exiting the membrane module. The scale on this flowmeter is dimensionless
because the operating pressure can range from 60 psig to 145 psig (4.1 barg to 10 barg). The
Nitrogen Purity Label on the control panel is used to convert this dimensionless flowmeter
reading to standard cubic feet per hour (or liters per minute), based on inlet air pressure and
required purity. The flow control valve is used to set the flow rate through the system as
determined by the user’s required nitrogen purity. The outlet pressure regulator allows the user
to set the pressure of the nitrogen process stream.
Note: In hazardous applications where the oxygen content is critical (i.e., blanketingNote: In hazardous applications where the oxygen content is critical (i.e., blanketing
Note: In hazardous applications where the oxygen content is critical (i.e., blanketing
Note: In hazardous applications where the oxygen content is critical (i.e., blanketingNote: In hazardous applications where the oxygen content is critical (i.e., blanketing
explosive chemicals or packaging food for extended shelf life), an oxygen monitor and/orexplosive chemicals or packaging food for extended shelf life), an oxygen monitor and/or
explosive chemicals or packaging food for extended shelf life), an oxygen monitor and/or
explosive chemicals or packaging food for extended shelf life), an oxygen monitor and/orexplosive chemicals or packaging food for extended shelf life), an oxygen monitor and/or
trace oxygen analyzer should be used in conjunction with safety interlocks and/or alarmtrace oxygen analyzer should be used in conjunction with safety interlocks and/or alarm
trace oxygen analyzer should be used in conjunction with safety interlocks and/or alarm
trace oxygen analyzer should be used in conjunction with safety interlocks and/or alarmtrace oxygen analyzer should be used in conjunction with safety interlocks and/or alarm
systems to assure proper nitrogen purity levels at all times.systems to assure proper nitrogen purity levels at all times.
systems to assure proper nitrogen purity levels at all times.
systems to assure proper nitrogen purity levels at all times.systems to assure proper nitrogen purity levels at all times.
An oxygen analyzer has been incorporated into the design of the HFX0-3 Nitrogen Generator to
monitor the oxygen content of the nitrogen process stream. The unit is powered by a 120 VAC
or 240 VAC, 50/60 Hz power supply. The sensing device in the oxygen analyzer is a galvanic
cell. The analyzer has an internal temperature compensation circuit to provide accurate readings within a specified temperature range.
The oxygen analyzer has all the controls necessary to assure safe and accurate monitoring of
the oxygen concentration in a process stream. The analyzer is equipped with the following
controls and features (see Figure 3):
Alarm Controls -Alarm Controls -
Alarm Controls - The alarm controls are located on the right side of the front panel. The switch
Alarm Controls -Alarm Controls on the far right side of the front panel enables the audible alarm. When enabled, the audible
alarm will sound if the oxygen concentration in the process stream exceeds the alarm set points
set by the user. The alarm set switch is located to the left of the audible alarm control switch.
The two potentiometers used to set alarm trigger points are located to the left of the alarm set
switch. The LED’s above and below the alarm set switch give a visual indication of oxygen
concentrations beyond the specified range.
Oxygen Concentration Display - The oxygen concentration LED display shows oxygen
Oxygen Concentration Display -Oxygen Concentration Display concentration, in percent, to the nearest 0.1%.
Calibration Controls -Calibration Controls -
Calibration Controls - The calibration controls are located to the left of the oxygen concentra-
Calibration Controls -Calibration Controls tion display. The zero potentiometer is used to zero the instrument when a zero gas (containing
no oxygen) is introduced. The span potentiometer is used to set the analyzer reading to the
specified concentration of oxygen in the span gas. The inlet port to the HFX0-3 for the calibration gas is 1/8" NPT and is located on the back of the generator, as shown in Figure 1. The
switch located below the calibration port (see Figure 1) is toggled up for calibration and down for
nitrogen purity monitoring.
Figure 3 - Front Panel Controls
For assistance, call toll-free at 800-343-4048
3
Page 4
Installation
!
!
!
Moving
General
Location
The Balston Nitrogen Generator is shipped on a wooden skid. The generator may be removed from
the skid when it arrives at the customer location, or it may be transported to its final destination while
skidded. If the generator is removed from the skid, use a two-wheeled dolly. If the generator
remains skidded while being moved, use a device approved for transporting skidded products.
The Balston Nitrogen Generator is a free-standing unit.
from the wall or ceiling. Its considerable weight and size could pose a falling hazard.from the wall or ceiling. Its considerable weight and size could pose a falling hazard.
from the wall or ceiling. Its considerable weight and size could pose a falling hazard.
from the wall or ceiling. Its considerable weight and size could pose a falling hazard.from the wall or ceiling. Its considerable weight and size could pose a falling hazard.
The inlet and outlet on the HFX-3 and HFX0-3 are 1/4" female NPT. A 1/4" male connector which will
withstand 145 psig (10 barg) should be used to connect to the nitrogen generator.
Shutoff Valve -Shutoff Valve -
Shutoff Valve - A shutoff valve should be installed directly upstream from the nitrogen generator to
Shutoff Valve -Shutoff Valve facilitate routine maintenance and troubleshooting procedures.
opened slowly.opened slowly.
opened slowly. Opening a valve quickly will pressurize the membrane too rapidly and may cause
opened slowly.opened slowly.
membrane rupture. Membrane failures resulting from improper valve installation will not be covered
under warranty.
Pressure Regulator -Pressure Regulator -
Pressure Regulator - A pressure regulator should be installed directly upstream from the nitrogen
Pressure Regulator -Pressure Regulator generator to set and maintain the inlet air pressure. Maintaining a constant inlet air pressure is
critical to the performance of the system.
Flow Controller -Flow Controller -
Flow Controller - If the application requires nitrogen at pressures higher than 10 psig (0.7 barg),
Flow Controller -Flow Controller install a flow controller downstream from the nitrogen generator, close to the point of use (see
Adjustment Procedure section, page 9).
The generator should be located indoors, protected from severe weather conditions, and free from
excessive ambient dust or dirt.
of the air surrounding the generator must be between 60°F and 95°F (15°C and 35°C). Allow a
minimum of 6" (15 cm) clearance on all sides of the generator.
Do not install the generator outdoors. Do not install the generator outdoors.
Do not install the generator outdoors. The ambient temperature
Do not install the generator outdoors. Do not install the generator outdoors.
Do not suspend the Nitrogen GeneratorDo not suspend the Nitrogen Generator
Do not suspend the Nitrogen Generator
Do not suspend the Nitrogen GeneratorDo not suspend the Nitrogen Generator
The valve should always beThe valve should always be
The valve should always be
The valve should always beThe valve should always be
Utilities
Installation with a
Receiving Tank
The environment surrounding the nitrogen generator should also be adequately ventilated.The environment surrounding the nitrogen generator should also be adequately ventilated.
The environment surrounding the nitrogen generator should also be adequately ventilated.
The environment surrounding the nitrogen generator should also be adequately ventilated.The environment surrounding the nitrogen generator should also be adequately ventilated.
The generator creates a 30% to 40% oxygen permeate stream which may pose a flammabilityThe generator creates a 30% to 40% oxygen permeate stream which may pose a flammability
The generator creates a 30% to 40% oxygen permeate stream which may pose a flammability
The generator creates a 30% to 40% oxygen permeate stream which may pose a flammabilityThe generator creates a 30% to 40% oxygen permeate stream which may pose a flammability
problem in an oxygen sensitive environment.problem in an oxygen sensitive environment.
problem in an oxygen sensitive environment.
problem in an oxygen sensitive environment.problem in an oxygen sensitive environment.
Compressed Air -Compressed Air -
Compressed Air - The Balston HFX-3 and HFX0-3 Nitrogen Generators require a source of clean,
Compressed Air -Compressed Air dry compressed air for operation. The incoming air should be between 60°F and 95°F(15°C and
35°C), have a dewpoint less than the ambient temperature, and be relatively free of water, compressor oil, hydrocarbons, and particulate matter. The inlet pressure of the compressed air supply
should be regulated to 60 psig to 145 psig (4.1 barg to 10 barg).
Power - If the Balston 72-730 oxygen analyzer is being used as an accessory, Power - If the Balston 72-730 oxygen analyzer is being used as an accessory,
Power - If the Balston 72-730 oxygen analyzer is being used as an accessory, a 120 VAC or
Power - If the Balston 72-730 oxygen analyzer is being used as an accessory, Power - If the Balston 72-730 oxygen analyzer is being used as an accessory,
240 VAC, 50/60 Hz power supply is required to energize the oxygen analyzer. (
line voltage must be within 10% of the nominal rated voltage for the generator.) The power receptacle is located on the back of the unit (see Figure 1).
Drain Lines -Drain Lines -
Drain Lines - The 1/4" plastic drain lines from the first two stages of prefiltration (see Figure 1)
Drain Lines -Drain Lines should be piped away to an appropriate disposal container. The liquid in this drainage will consist
primarily of water and compressor oil and should be disposed of properly.
In many applications, the process flow requirements for nitrogen fluctuate with time. As noted
earlier, if the flowrate of the emergent nitrogen stream varies, the purity level of the nitrogen stream
also varies; therefore, it is important to keep the nitrogen flow as constant as possible. A receiving
tank can be installed between the nitrogen generator and the process to accommodate fluctuations
in nitrogen demand and maintain nitrogen purity.
If a receiving tank is to be used, a back pressure regulator and a check valve should be installed
between the Balston Nitrogen Generator and the receiver tank (see Figure 5). The 72-460 Back
Pressure Controller contains both of these components and may be ordered as an accessory for the
Nitrogen Generator. The adjustable back pressure regulator, when set to the appropriate pressure,
will maintain a constant pressure drop across the flow control valve. By controlling the pressure
drop across the flow control valve, the nitrogen flow will be kept constant and the variability in purity
of the nitrogen process stream will be minimized. The check valve, when installed properly, will
prevent any flow of nitrogen from the receiver upstream toward the generator, providing a more
effective means of storing the emergent nitrogen.
Note:Note:
Note: Main supply
Note:Note:
4
Parker Hannifin Corporation Bulletin TI-HFX-3D
Page 5
Installation
Figure 4 - Recommended Installation
Figure 5 - Recommended Installation with a Receiving Tank
Galvanic Cell
Installation
Voltage Selector
For assistance, call toll-free at 800-343-4048
The galvanic cell used in the oxygen analyzer is
is shipped in the bag which contains the documentation for the product. The only tools needed to
install the sensor are a small flat head or Phillips screwdriver and wire strippers. The procedure for
installing the sensor is outlined below and takes approximately 10 minutes.
Disconnect generator from power supply before installing galvanic cell sensor.Disconnect generator from power supply before installing galvanic cell sensor.
Disconnect generator from power supply before installing galvanic cell sensor.
Disconnect generator from power supply before installing galvanic cell sensor.Disconnect generator from power supply before installing galvanic cell sensor.
11
1Remove filter access panel and sensor cover to expose galvanic cell holder (see Figure 6).
11
22
2Strip replacement sensor connecting wires to 1/4" to 3/8" (6mm to 9mm) using wire strippers.
22
33
3Connect the stripped wires to the screw connections provided being sure to maintain the
33
proper polarity (black -, red +).
The HFX0-3 Nitrogen Generator is preset at the factory for operation at 120 VAC. The voltage
setting for the generator is shown through a small window on the power entry module on the back of
the generator (see Figure 1).
tor.tor.
tor. The selector setting should match the voltage of the local power supply and the product label.
tor.tor.
If the voltage selector displays an input power voltage different from the local power supply, it may
be changed using only a small screwdriver. First, use the screwdriver to release the cover of the
power entry module on the back of the generator (see Figure 1). Next, rotate the voltage selector
until the desired input voltage is displayed in the window. Finally, replace the power entry module
cover. (Note: The "NA" version of the generator is designed to operate at 120 VAC only.)
notnot
not installed into the generator prior to shipment. It
notnot
Check the voltage selector setting prior to energizing the genera-Check the voltage selector setting prior to energizing the genera-
Check the voltage selector setting prior to energizing the genera-
Check the voltage selector setting prior to energizing the genera-Check the voltage selector setting prior to energizing the genera-
5
Page 6
Alarms
!
Alarm Set Points
Alarm Relay Contacts
1
4
The high and low limits of the alarm may be set anywhere between 0.5% and 25% oxygen,
depending on the process limitations. To set the high alarm set point, press the alarm set switch
upward and simultaneously adjust the high potentiometer until the display shows the desired high
alarm set point. To set the low alarm set point, press the alarm set switch downward and simultaneously adjust the low potentiometer until the display shows the desired low alarm set point.
The oxygen analyzer also includes high and low alarm relay contacts located inside the service
panel. The oxygen analyzer, through the use of the alarm relay contacts, may be used to control
the process stream (see Figure 6). For example, a high or low oxygen concentration could signal
a remote alarm, open a backup supply of the process stream, or close the process down for
protection of downstream equipment or processes. The alarm relay contacts should be wired by a
qualified electrician. Both the high and low oxygen alarm conditions are provided with three relay
outputs: a common (C), a normally open (NO), and normally closed (NC).
To eliminate the possibility of electrical shock, disconnect the power cord before wiring theTo eliminate the possibility of electrical shock, disconnect the power cord before wiring the
To eliminate the possibility of electrical shock, disconnect the power cord before wiring the
To eliminate the possibility of electrical shock, disconnect the power cord before wiring theTo eliminate the possibility of electrical shock, disconnect the power cord before wiring the
alarm relay contacts to outside circuitry.alarm relay contacts to outside circuitry.
alarm relay contacts to outside circuitry.
alarm relay contacts to outside circuitry.alarm relay contacts to outside circuitry.
The relay contacts are rated for 250 VAC, 5 amps resistive or 3 amps inductive load orThe relay contacts are rated for 250 VAC, 5 amps resistive or 3 amps inductive load or
The relay contacts are rated for 250 VAC, 5 amps resistive or 3 amps inductive load or
The relay contacts are rated for 250 VAC, 5 amps resistive or 3 amps inductive load orThe relay contacts are rated for 250 VAC, 5 amps resistive or 3 amps inductive load or
24 VDC 5 amps resistive or 3 amps inductive load. Do not exceed these values in order to24 VDC 5 amps resistive or 3 amps inductive load. Do not exceed these values in order to
24 VDC 5 amps resistive or 3 amps inductive load. Do not exceed these values in order to
24 VDC 5 amps resistive or 3 amps inductive load. Do not exceed these values in order to24 VDC 5 amps resistive or 3 amps inductive load. Do not exceed these values in order to
maintain the instrument safety certification.maintain the instrument safety certification.
maintain the instrument safety certification.
maintain the instrument safety certification.maintain the instrument safety certification.
The customer is responsible for the circuitry utilizing these relay outputs and should use good
engineering safety practices in the design of this circuitry.
11
1Strip all connecting wires to 1/4" to 3/8" (6mm to 9mm) using wire strippers.
11
22
2Insert small screwdriver into the hole below the wire connection point and press to open
22
connector.
33
3Slide the stripped wire end into the connection port until it “bottoms out”.
33
44
4Remove the screwdriver to clamp the wire into the connection port. Pull the wire gently to test
44
integrity of the connection. Repeat this procedure from step 2 if the wires release easily.
5Thread wires through electrical access opening on right side of generator (see Figure 1).
Figure 6 - Front View, Service Panel Removed
6
Parker Hannifin Corporation Bulletin TI-HFX-3D
Page 7
Operation/Calibration (Model HFX0-3)
!
Startup
Oxygen
Analyzer
Calibration
Plug the IEC power cord into the power entry receptacle of the generator, and plug the opposite end
into a nearby wall outlet with earth ground protection. (
tor. The oxygen analyzer is energized when the generator is plugged in.)
The inlet and outlet connections to the Balston HFX0-3 Nitrogen Generator must be checked for leaks
prior to system start-up. After the system is properly installed and checked for leaks, the inlet gate
valve can be opened to introduce compressed air to the system.
During start-up and adjustment of the system, the nitrogen produced by the system will vary in purity.
If the application for the nitrogen is critically dependent on purity, the nitrogen produced during start-up
or adjustment should be vented.
If the outlet nitrogen flow is closed, the system will still consume compressed air. The inlet air is simply
vented to atmosphere through the permeate ports of the membrane module.
CAUTION: the oxygen analyzer will not provide accurate readings unless calibrated on a regularCAUTION: the oxygen analyzer will not provide accurate readings unless calibrated on a regular
CAUTION: the oxygen analyzer will not provide accurate readings unless calibrated on a regular
CAUTION: the oxygen analyzer will not provide accurate readings unless calibrated on a regularCAUTION: the oxygen analyzer will not provide accurate readings unless calibrated on a regular
basis.basis.
basis.
basis.basis.
The oxygen analyzer is calibrated prior to shipment; however, Parker strongly recommends recalibrating the unit prior to initial start-up. After the initial start-up, the analyzer should be calibrated on
a bi-weekly basis until a suitable schedule is determined, based upon the level of accuracy required by
the application.
There are two methods of calibrating the oxygen analyzer: the two point method and the single point
method. In the two point method, the first point in the calibration range is set to zero using a zero gas
(zero percent oxygen), and the second point in the range is set to a known percentage of oxygen using
a span gas (known quantity of oxygen, per gas supplier) or compressed air (20.9% oxygen). In the
single point method, only one point in the calibration range is set, using either span gas or compressed
air. Maximum accuracy in oxygen concentration monitoring will be achieved if the oxygen concentration in the span gas is within the range of the expected oxygen concentration in the process stream
and the pressure of the gas closely approximates the pressure of the nitrogen gas (See Figure 3 for
calibration controls).
Note:Note:
Note: There is no power switch on the genera-
Note:Note:
The procedure for the
11
1 Throw the toggle switch on the back of the unit to the upright position, toward the calibration port.
11
22
2 Connect a tank of zero gas to the port. (Gas pressure should be approximately equal to operating
22
pressure.)
33
3 Allow the zero gas to flow through the unit until the reading on the oxygen concentration display
33
stabilizes.
44
4 Adjust the zero potentiometer until the oxygen concentration display reads zero.
44
55
5 Disconnect the zero gas from the calibration port, and connect a tank of span gas (operating
55
pressure) or a source of clean compressed air.
66
6 Allow the reading to stabilize, and adjust the span potentiometer until the reading on the oxygen
66
concentration display reads the known percent (span gas) or 20.9% (compressed air).
77
7 Disconnect the calibration gas and throw the toggle switch to the downward position to resume
77
sampling the nitrogen stream.
The procedure for the
11
1 Connect a tank of span gas (operating pressure) or a source of clean compressed air to the calibra-
11
tion port.
22
2 Allow the gas or air to flow through the analyzer until the reading on the oxygen concentration
22
display stabilizes.
33
3 Adjust span potentiometer until the reading on the oxygen concentration display reads the known
33
percent (span gas) or 20.9% (compressed air).
44
4 Disconnect the calibration gas and throw the toggle switch to the downward position to resume
44
sampling the nitrogen stream.
(Note: Parker recommends the use of a span gas with an oxygen content between 1% and 10%.)
two point calibration methodtwo point calibration method
two point calibration method is as follows:
two point calibration methodtwo point calibration method
single point calibrationsingle point calibration
single point calibration
single point calibrationsingle point calibration
methodmethod
method is as follows:
methodmethod
For assistance, call toll-free at 800-343-4048
7
Page 8
Operation: Adjustment Procedure
System Adjustment for
Desired Outlet Purity
Atmospheric Pressure
Applications
(<10 psig/0.7 barg)
The user must determine the nitrogen purity, flow rate, and pressure required by the application
prior to adjusting the system for desired outlet nitrogen purity and flow rate. The inlet air pressure
must be constant in order for the system to supply nitrogen of consistent purity to the application.
The inlet pressure to the Balston Nitrogen Generator should be maximized (within process and
generator parameters) to optimize the operation of the membrane module. The required inlet air
flow rate and all flow and purity specifications for different operating conditions are shown in the
specifications listing on pages 12-13.
Flow adjustments are made according to the values on the Nitrogen Purity label attached to the
front of the generator (and shown below).
If the Balston Nitrogen Generator is being used to deliver nitrogen at or near atmospheric pressure
(e.g. purging or blanketing applications), use the following procedure for start-up and adjustment of
the system.
11
1 Open the (customer installed) inlet air gate valve.
11
22
2 Adjust the (customer installed) inlet air pressure regulator until the Operating Pressure Gauge
22
(see Figure 1) shows the pressure reading required to achieve the purity and flow to match the
application (see Purity/Flow label above).
33
3 Adjust the Outlet Pressure Regulator (see Figure 1) until the Outlet Pressure Gauge reads less
33
than 10 psig (0.7 barg).
44
4 Consult the Nitrogen Purity Label on the control panel of the generator to determine the proper
44
flowmeter setting for the required process nitrogen purity and inlet air pressure. Adjust the flow
control valve on the control panel (see Figure 1) to yield the proper flowmeter reading.
55
5 Allow the system to reach equilibrium at the desired flowrate, pressure, and purity parameters.
55
This should take approximately 15 minutes.
66
6 Check the purity readings on the oxygen analyzer on a routine basis. If the nitrogen purity level
66
falls below the desired level, readjust the flow control valve until the proper nitrogen purity level is
reached. (Note: If more than minor adjustments of the flow control valve are required to reach
the desired purity level, please see the Troubleshooting section of this manual for further guidance.)
Elevated Pressure
Applications
(>10 psig/0.7 barg)
If the Balston Nitrogen Generator is being used to deliver nitrogen at an elevated pressure
(>10 psig/0.7 barg), use the following procedure for start-up and adjustment of the system. (Note:
In elevated pressure applications, the customer should install a flow controller downstream from the
Nitrogen Generator.)
11
1 Open the (customer installed) inlet air gate valve.
11
22
2 Adjust the (customer installed) inlet air pressure regulator until the Operating Pressure gauge
22
(see Figure 1) shows the pressure reading required to achieve the purity and flow to match the
application (see Purity/Flow label, page 13).
33
3 Turn the Flow Control Valve to its fully open position
33
44
4 Set the Outlet Pressure Regulator (see Figure 1) to the desired outlet nitrogen pressure.
44
55
5 Consult the Nitrogen Purity Label on the control panel of the HFX0-3 to determine the proper
55
dimensionless flowmeter setting for the required process nitrogen purity and operating air
pressure. Adjust the (customer installed) flow controller until the dimensionless flowmeter shows
the correct reading (based on the Nitrogen Purity Label).
66
6 Allow the system to reach equilibrium at the desired flowrate, pressure, and purity parameters.
66
This should take approximately 15 minutes.
77
7 Check the purity readings on the oxygen analyzer on a routine basis. If the nitrogen purity level
77
falls below the desired level, readjust the downstream flow controller until the proper nitrogen
purity level is reached. (Note: If more than minor adjustments of the downstream flow controller
are required to reach the desired purity level, please see the Troubleshooting section of this
manual for further guidance.)
8
Parker Hannifin Corporation Bulletin TI-HFX-3D
Page 9
Operation/Calibration
Receiver Tank
Applications
After all the components have been properly installed (see Figure 5), the following procedure should
be followed to ensure optimal operation of the entire nitrogen supply system.
11
1 Set the inlet pressure to the Balston Nitrogen Generator using the customer-provided pressure
11
regulator, and initiate the air flow through the system.
22
2 Set the flow control valve to its fully open position. The nitrogen flow meter reading should be at
22
the top of the scale.
33
3 Close the shut-off valve to the process and open the vent valve downstream from the receiving
33
tank to prevent substandard nitrogen from entering the process.
44
4 Fully open the outlet pressure regulator on the nitrogen generator, and adjust the back pressure
44
controller until the outlet pressure gauge on the nitrogen generator reads 10 psig (0.7 bar) less
than the desired nitrogen storage pressure. Maximize the storage pressure to minimize the size
of the receiving tank needed.
55
5 Set the flow control valve on the front panel of the nitrogen generator to the proper reading, as
55
specified by the Nitrogen Purity Label. Read from the middle of the ball.
66
6 Purge the entire system for 5 minutes, venting the initial nitrogen stream through the vent valve
66
to atmosphere.
77
7 Close the vent valve, open the process shut-off valve, and initiate the flow of nitrogen to the
77
process.
The use of a receiving tank upstream from the process, as detailed in this literature, significantly
reduces the effects of fluctuating nitrogen demand on the purity of the emergent nitrogen process
stream from the Balston Nitrogen Generator. Parker recommends a 5 minute purge of the system
(see Step 3 above) each time the unit is started.
Operation: Adjustment Procedure
Temperature Equilibrium
Evaluation
System Upsets
If the temperature of the inlet air to the Balston Nitrogen Generator differs from the temperature of
the module (i.e. ambient temperature), the system must be allowed to reach temperature equilibrium
before a constant purity of nitrogen is delivered from the system. If the temperature difference is
10°F-20°F (5°C-11°C), this equilibrium period may be as long as 60 minutes. The inlet air temperature and, more importantly, inlet air dewpoint, must not be higher than the temperature of the system
or condensation of water within the system may occur, resulting in inefficient performance of the
system and/or damage to the membrane.
Performance of the Balston Nitrogen Generator is highly dependent on the temperature of the inlet
air. The data on purity and flow rate presented in this bulletin is based on an inlet air temperature of
68°F (20°C). If the temperature of the inlet air at the point of use for this system varies from 68°F
(20°C) by more than 5°F (3°C), the factory must be consulted for flow and purity information.
The optimum performance of the Balston Nitrogen Generator is dependent on system parameters
remaining stable and accurate; therefore, the system should be checked at least once per week.
This routine system check should include correcting any changes in the flowmeter reading, confirming pressure gauge reading stability and operating pressure setting, checking the downstream
flowmeter (if applicable) to ensure flows are consistent with the required nitrogen purity level, and
calibrating the oxygen analyzer.
System upsets relative to pressure or flow rate will result in variations in purity of the outlet gas.
System upsets relative to temperature, dewpoint, or hydrocarbon content of the inlet compressed air
may result in variations of the system performance. These types of upsets should be eliminated
from the compressed air delivery system to assure consistent performance of the Balston Nitrogen
Generator.
Shutting Down
For assistance, call toll-free at 800-343-4048
Proper shutdown of the Balston Nitrogen Generator can be accomplished by simply closing the inlet
air gate valve and turning off the oxygen analyzer. If the inlet valve is left open, the system will
continue to consume inlet compressed air. Closing the outlet flow control valve will not prevent air
consumption because the membrane module permeate ports are open to atmosphere.
9
Page 10
Maintenance
!
To avoid system damage and/or personal harm, isolate the Balston Nitrogen Generator fromTo avoid system damage and/or personal harm, isolate the Balston Nitrogen Generator from
To avoid system damage and/or personal harm, isolate the Balston Nitrogen Generator from
To avoid system damage and/or personal harm, isolate the Balston Nitrogen Generator fromTo avoid system damage and/or personal harm, isolate the Balston Nitrogen Generator from
the compressed air supply and fully depressurize prior to performing any maintenancethe compressed air supply and fully depressurize prior to performing any maintenance
the compressed air supply and fully depressurize prior to performing any maintenance
the compressed air supply and fully depressurize prior to performing any maintenancethe compressed air supply and fully depressurize prior to performing any maintenance
activities.activities.
activities.
activities.activities.
All maintenance activities for the Balston HFX-3 and HFX0-3 Nitrogen Generators should beAll maintenance activities for the Balston HFX-3 and HFX0-3 Nitrogen Generators should be
All maintenance activities for the Balston HFX-3 and HFX0-3 Nitrogen Generators should be
All maintenance activities for the Balston HFX-3 and HFX0-3 Nitrogen Generators should beAll maintenance activities for the Balston HFX-3 and HFX0-3 Nitrogen Generators should be
performed by suitable personnel using reasonable care.performed by suitable personnel using reasonable care.
performed by suitable personnel using reasonable care.
performed by suitable personnel using reasonable care.performed by suitable personnel using reasonable care.
Required maintenance for the Balston Nitrogen Generation System consists of changing the prefilter
and final filter cartridges (annually), changing the galvanic cell in the oxygen analyzer (annually),
checking the performance of the system, and calibrating the oxygen analyzer. The recommended
service schedule and replacement part numbers are outlined at the end of this section. The calibration procedure for the oxygen analyzer is outlined on page 6. The analyzer should be calibrated on
a regular basis, as dictated by the application.
Changing filter cartridges more frequently will translate into direct energy savings and reduced
operating costs. Annual electricity costs to operate a typical 100 HP compressor can be as high as
$50,000. Pressure drop in the system adds to this expense. A system operating at 100 psig that is
exeriencing a 2 psig pressure drop through a filter, requires an additional 1% in operating energy
costs or approximately $500.00+ per year.
Filter Cartridge
Replacement
Replacement prefilter cartridges, final membrane filter cartridges, and galvanic cells may be ordered
through your local representative. For convenience, these replacement items have been packaged
into a maintenance kit for each generator. Maintenance Kits provide a 6 month supply of filtration
replacement components.
The only tools required to change the prefilter cartridges and the final membrane filter cartridge is a
Phillips head screwdriver. All filter housings which require routine service are easily accessible
when the front filtration access panel is opened. (Remove the four corner screws.) The two coalescing prefilters are Balston 2002N-1B1-DX and 2002N-1B1-BX filter assemblies (see Figure 7). Replace these filter cartridges with Balston 100-12-DX and 100-12-BX filter cartridges. When replacing
the prefilter cartridges, be sure to install the proper grade filter in the proper housing (the housings
are labeled). The final membrane filter is a Balston 2002N-0A0-95 filter assembly. Replace this
membrane filter cartridge with a Balston Grade GS 100-12-95 membrane filter cartridge.
The filter cartridges in the filter assemblies are removed by: twisting the filter bowl clockwise 1/8 of a
turn while pushing up gently, lowering the filter bowl away from the filter head, and unscrewing the
element retainer from the base of the cartridge. Insert the new filter cartridge and reassemble the
housing in reverse order.
The time required to service all three stages of filtration is less than 15 minutes.
10
Parker Hannifin Corporation Bulletin TI-HFX-3D
Page 11
Maintenance
Galvanic Cell
Replacement
Fuse
Replacement
Disconnect generator from power supply before replacing galvanic cell sensor.Disconnect generator from power supply before replacing galvanic cell sensor.
Disconnect generator from power supply before replacing galvanic cell sensor.
Disconnect generator from power supply before replacing galvanic cell sensor.Disconnect generator from power supply before replacing galvanic cell sensor.
The galvanic cell sensor degrades over time and should be replaced on an annual basis
(P/N 72695). The only tools needed for this replacement are a Phillips screwdriver, a small
screwdriver, and wire strippers. The procedure for changing the sensor is outlined below and
takes approximately 10 minutes.
11
1 Remove filtration access panel and cell cover to expose galvanic cell holder (see Figure 7).
11
22
2 Disconnect old cell wires from connectors.
22
33
3 Strip replacement sensor connecting wires to 1/4" to 3/8" (6mm to 9mm) using wire strippers.
33
44
4 Connect the stripped wires to the screw connections provided being sure to maintain the
44
proper polarity (black -, red +).
This equipment has fuses in both neutral and phase lines. Use care when servicing.This equipment has fuses in both neutral and phase lines. Use care when servicing.
This equipment has fuses in both neutral and phase lines. Use care when servicing.
3
2
This equipment has fuses in both neutral and phase lines. Use care when servicing.This equipment has fuses in both neutral and phase lines. Use care when servicing.
Occasionally, one or both of the fuses (P/N 13221) in the generator may burn out. The fuses are
located in the power receptacle on the back of the generator.
disconnect the power cord from the power supply. disconnect the power cord from the power supply.
disconnect the power cord from the power supply. Both fuses should be checked each time
disconnect the power cord from the power supply. disconnect the power cord from the power supply.
fuse replacement is warranted. To access the fuses, use a small screwdriver to remove the
holder located in the power receptacle of the generator. Replace either one or both fuses as
necessary and re-assemble.
For continued protection against risk of fire, replace only with fuse of specified rating.For continued protection against risk of fire, replace only with fuse of specified rating.
For continued protection against risk of fire, replace only with fuse of specified rating.
For continued protection against risk of fire, replace only with fuse of specified rating.For continued protection against risk of fire, replace only with fuse of specified rating.
Before servicing the fuses,Before servicing the fuses,
Before servicing the fuses,
Before servicing the fuses,Before servicing the fuses,
Cleaning
Service Schedule
Replacement Parts
The product is not intended for use in extremely dirty environments. If necessary, the Nitrogen
Generator may be wiped clean with a dry cloth on an as needed basis.
aerosols, or other cleaning agents to clean the unit. Use of any liquid detergent to cleanaerosols, or other cleaning agents to clean the unit. Use of any liquid detergent to clean
aerosols, or other cleaning agents to clean the unit. Use of any liquid detergent to clean
aerosols, or other cleaning agents to clean the unit. Use of any liquid detergent to cleanaerosols, or other cleaning agents to clean the unit. Use of any liquid detergent to clean
the generator could present an electrical hazard.the generator could present an electrical hazard.
the generator could present an electrical hazard.
the generator could present an electrical hazard.the generator could present an electrical hazard.
Maintenance Kit MK75790C1 each1 each1 each1 each1 each
Note: To ensure consistent product performance and reliability, use only genuine Balston replacement parts and filter cartridges.
Model HFX-3Figure 7 - Maintenance Items
Scrubber
Do not use water,Do not use water,
Do not use water,
Do not use water,Do not use water,
Model HFX0-3
For assistance, call toll-free at 800-343-4048
11
Page 12
Maintenance
!
!
Inlet air consumption
at various purities and
pressures
NITROGEN PURITY/FLOW CHART (Minimum Purity at Operating Temperature and Flow, PSIG, @ 68°F)
MINIMUM
PURITY
PERCENT N
99.01.0221.2291.4361.5421.6481.7551.860
98.001.6361.9482.3592.5702.7802.9913.0100
97.002.2502.7653.1813.4953.61094.01244.1136
96.002.8633.4823.91024.31204.61375.01575.2172
95.003.5774.11014.81265.31485.71696.11926.4212
NITROGEN PURITY/FLOW CHART (Minimum Purity at Operating Temperature and Flow, BARG, @ 20°C)
MINIMUM
PURITY
PERCENT N
99.01.0101.2131.4171.5201.6231.7261.828
98.001.6171.9222.3282.5332.7382.9433.047
97.002.2232.7313.1383.4453.6514.0584.164
96.02.8303.4393.9484.3574.6655.0745.281
95.003.5364.1474.8595.3705.7806.1916.4100
Operating PressureInlet Air Required
Models HFX-3, HFX0-3
psigbargPurity (% N
)SCFHSLPM
2
1451099399188
1451095589278
101799263124
101795385182
7359917181
73595242114
58 PSIG
METER
2
METER
2
SCFH
4 BARG
SLPM
73 PSIG87 PSIG
METER
METER
SCFH
METER
5 BARG6 BARG
SLPM
METER
SCFH
SLPM
101 PSIG
METER
METER
SCFH
7 BARG
SLPM
116 PSIG
METER
METER
SCFHMETER
8 BARG
SLPMMETER
130 PSIG
9 BARG
SCFH
SLPM
METER
METER
145PSIG
SCFH
10 BARG
SLPM
Notes
Cautions
12
11
1The flow meter reading is
11
dimensionless. Read flow meter at
the top of the float. The actual flow
at various operating pressures is
converted into SCFH (standard
cubic feet per hour) or SLPM
(standard liters per minute) in the
purity label on the unit.
11
1The Balston Nitrogen Generator should be installed in an area with adequate ventilation to reduce the flammability of the
11
oxygen-rich permeate stream. The system should not be located in an area where the permeate stream poses the risk of
explosion or combustion.
22
Nitrogen is nontoxic and largely inert. It can act as a simple asphyxiant by displacing oxygen in air. Inhalation ofNitrogen is nontoxic and largely inert. It can act as a simple asphyxiant by displacing oxygen in air. Inhalation of
2
Nitrogen is nontoxic and largely inert. It can act as a simple asphyxiant by displacing oxygen in air. Inhalation of
22
Nitrogen is nontoxic and largely inert. It can act as a simple asphyxiant by displacing oxygen in air. Inhalation ofNitrogen is nontoxic and largely inert. It can act as a simple asphyxiant by displacing oxygen in air. Inhalation of
nitrogen in excessive concentrations can result in unconsciousness without any warning symptoms such asnitrogen in excessive concentrations can result in unconsciousness without any warning symptoms such as
nitrogen in excessive concentrations can result in unconsciousness without any warning symptoms such as
nitrogen in excessive concentrations can result in unconsciousness without any warning symptoms such asnitrogen in excessive concentrations can result in unconsciousness without any warning symptoms such as
dizziness, fatigue, etc.dizziness, fatigue, etc.
dizziness, fatigue, etc.
dizziness, fatigue, etc.dizziness, fatigue, etc.
33
maximummaximum
3The
maximum operating pressure of the system is 145 psig (10 barg). Operating the nitrogen generator at pressures
33
maximummaximum
above 145 psig (10 barg) will result in damage to the membrane.
44
recommendedrecommended
4The
recommended operating inlet air temperature for the nitrogen generator is 68°F (20°C) or less. If the inlet air
44
recommendedrecommended
temperature will be higher than the ambient temperature, the compressed air should be cooled and filtered, to remove
water and oil, prior to heating for introduction to the nitrogen generator.
directly from the compressor.directly from the compressor.
directly from the compressor.
directly from the compressor.directly from the compressor.
55
maximummaximum
5The
maximum operating inlet air temperature of the Balston HFX-3 Nitrogen Generator is 110°F (43°C); The
55
maximummaximum
operating inlet air temperature of the Balston HFX0-3 Nitrogen Generator is 95°F (35°C). If the inlet air temperature is above
95°F (35°C), the longevity of the membrane will be reduced and the warranty will be void.
66
6The drain lines from the first two stages of filtration should be piped away to an appropriate collection vessel or waste
66
treatment system to avoid any possible re-entrainment of liquid in the emergent filtered air which feeds the membrane
module.
77
7Changes in inlet pressure or outlet flow demand will alter the nitrogen purity.
77
88
Use of any valve other than a gate valve (or other slow-opening valve) on the inlet air supply may cause damage toUse of any valve other than a gate valve (or other slow-opening valve) on the inlet air supply may cause damage to
Use of any valve other than a gate valve (or other slow-opening valve) on the inlet air supply may cause damage to
8
88
Use of any valve other than a gate valve (or other slow-opening valve) on the inlet air supply may cause damage toUse of any valve other than a gate valve (or other slow-opening valve) on the inlet air supply may cause damage to
the membrane module.the membrane module.
the membrane module.
the membrane module.the membrane module.
22
2Minimum purity is shown on the
22
purity label is in percent nitrogen.
All nitrogen purities are ± 0.5%.
33
3All data shown in the flow chart is
33
based on an operating temperature
of 68°F (20°C).
Do not use high temperature compressed airDo not use high temperature compressed air
Do not use high temperature compressed air
Do not use high temperature compressed airDo not use high temperature compressed air
44
4At inlet air temperatures less than
44
68°F (20°C) or greater than 82°F
(28°C) consult factory for flow rates.
All troubleshooting and service activities should be performed by suitable personnel using
reasonable care.
Symptom - Nitrogen GeneratorCourse of Action
Loss of Outlet PressureCheck that the flow control valve on the generator is fully open and control the flow with a valve at the process.
Check operating pressure to assure that it is greater than 60 psig (4.1 barg).
Check the system for leaks.
Loss of Outlet FlowCheck operating pressure to assure that it is greater than 60 psig (4.1 barg).
Check setting of flow control valve. Adjust if necessary.
Check the system for leaks.
Purity is Lower than Specified forCheck setting of flow rate compared to specification.
Operating Conditions
Air Leak Through Drains of Prefilters Check inlet pressure. It should be greater than 15 psig (1 barg) to seal drain.
Check the operating pressure to assure that it has not varied from the original reading.
Check the system for leaks.
Measure the temperature and dewpoint of the inlet air. The recommended temperature is 68°F (20°C) and the recommended
dewpoint 60°F (15°C) or lower.
Calibrate oxygen analyzer (if needed).
Remove tubing from the drain outlet, hold finger over drain opening for a few seconds to allow pressure to build and drain to seal.
Remove bowl from filter assembly and rinse with water.
If leak persists, replace automatic float drain (P/N 21552).
Symptom - Oxygen AnalyzerCourse of Action
(Model HFX0-3 only)
Display variesCheck process flow demand
Check sensor light
Check sample lines for leaks
Alarm stays onCheck set points
Limited range during calibrationReplace sensor (P/N 72695)
To arrange for system service, contact the Technical Services Department at 1-800-343-4048, 8AM
to 5PM Eastern Time. For location outside North America and the UK, please contact your local
representative.
Remember To:
Complete and mail your registration card.
Keep your product certification in a safe place.
Serial Numbers
Each major component in this unit has a serial number. A serial number for the entire unit is attached to the left side panel, near the inlet port. For your own records, and in case service is
required, please record the following:
DATE IN SERVICESERIAL NO.
Parker Hannifin guarantees to the original purchaser of this product, that if the product fails or is defective within
12 months from the date of purchase, when this product is operated and maintained according to the instructions
provided with the product, then Parker guarantees, at Parker’s option, to replace the product, repair the product,
or refund the original price for the product. This warranty applies only to defects in material or workmanship and
does not cover: ring and valve wear on compressors, routine maintenance recommended by the instructions
provided with this product, or filter cartridges. Any modification of the product without written approval from Parker
will result in voiding this warranty. Complete details of the warranty are available on request. This warranty applies
to units purchased and operated in North America.
WARRANTY (NORTH AMERICA ONLY)
(FOR INFORMATION CONTACT YOUR LOCAL REPRESENTATIVE)
14
Parker Hannifin Corporation Bulletin TI-HFX-3D
Page 15
Explanation of Warning Symbols
!
!
SymbolSymbol
Symbol
SymbolSymbol
33
3
33
DescriptionDescription
Description
DescriptionDescription
Caution, refer to accompanying
documents for explanation.
Refer the caution/warning note
indicated for explantion.