X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
GF100 Series
Brooks® GF100 Series
High Purity/Ultra-High Purity Digital Thermal
Mass Flow Devices
Model GF125 Analog I/O
Model GF125 Digital I/O
Model GF135 Analog I/O
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013GF100 Series
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Dear Customer ,
We appreciate this opportunity to service your flow measurement and control requirements with a Brooks
Instrument device. Every day, flow customers all over the world turn to Brooks Instrument for solutions to their gas
and liquid low-flow applications. Brooks provides an array of flow measurement and control products for various
industries from biopharmaceuticals, oil and gas, fuel cell research and chemicals, to medical devices, analytical
instrumentation, semiconductor manufacturing, and more.
The Brooks product you have just received is of the highest quality available, offering superior performance,
reliability and value to the user . It is designed with the ever changing process conditions, accuracy requirement s
and hostile process environments in mind to provide you with a lifetime of dependable service.
We recommend that you read this manual in its entirety. Should you require any additional information concerning
Brooks products and services, please contact your local Brooks Sales and Service Of fice listed on the back cover
of this manual or visit www .BrooksInstrument.com.
Y ours sincerely ,
Brooks Instrument
GF100 Series
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013GF100 Series
THIS PAGE WAS
INTENTIONALLY
LEFT BLANK
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
A-1AGF100 Series Gas Table - Codes 1-110, Bins SH40 to SH50.......................................................A-1
A-1BGF100 Series Gas Table - Codes 118-953, Bins SH40 to SH50...................................................A-2
A-1CGF100 Series Gas Table - Codes 958-5022, Bins SH40 to SH50 ................................................A-3
ii
B-1GF100 Series Patents...................................................................................................................B-1
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
1-1 Introduction
Section 1 Introduction
GF100 Series
Designed for semiconductor, MOCVD , and other gas flow control
applications that require a high purity all-metal flow path, the Brooks
GF100 Series mass flow controllers and meters deliver outstanding
performance, reliability , and flexibility . Process throughput and yield are
maximized while process costs are reduced by the GF100 Series featuring:
• Ultra fast settling time for quick start up and very rapid process steps
• MultiFlo™ gas and range configurability enabling reconfiguration without
removing device from the gas line
• An independent diagnostic/service port to troubleshoot or change flow
conditions without removing the mass flow controller from service
• Long-term stability due to extremely low wetted surface area, and
corrosion resistant Hastelloy® sensor and valve seat
Optional model variations including—pressure transient insensitivity (PTI),
High Accuracy (HA), Safe Delivery System (SDS)
1-2 How to Use This Manual
Figure 1-1 GF100 Series High Performance Gas Flow Controller Analog and Digital
This manual is intended to provide the user with all the information
necessary to install, operate, troubleshoot and maintain these thermal
mass flow devices. The manual is organized in the following sections:
Section 1 Introduction
Section 2 Installation
Section 3 Operation
Section 4 Maintenance and Troubleshooting
Section 5 Product Description Code
Appendix A GF100 Series Gas Table
Appendix B GF100 Series Patents
Appendix C Essential Instructions
Warranty, Local Sales/Service Contact Information
It is recommended that this manual be read in its entirety before attempting
to operate or repair these devices.
1-1
Section 1 Introduction
GF100 Series
1-3 Product Support References
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Refer to www .BrooksInstrument.com for Brooks sales and service
locations and to obtain other documents that support the GF100 Series.
Those documents include:
1-4 Notice and Caution Statement s
1-5 Product Warranty
- Brooks MultiFlo
X-SW-MultiFlo-Config-QS-eng. part Number 541B167AAG
Warning, caution and notice statements are located throughout this manual
in the ANSI format. A WARNING statement indicates a potentially
hazardous situation which, if not avoided, COULD result in death or serious
injury . A CAUTION statement indicates a potentially hazardous situation
which, if not avoided, MA Y result in minor or moderate injury. It may also be
used to alert against unsafe practices. A NOTICE statement describes
specific information that requires special attention.
Product warranty information can be found on the Back Cover of this
Manual and on the Brooks website at www.BrooksInstrument.com. This
information provides general warranty information, limitations, disclaimers,
and applicable warranty periods according to product group.
1-6 How to Order a GF100 Series Device
1-7 Industry Standard References
1-8 GF100 Series Gas T able
1-9 Glossary of T erms and Acronyms
1-2
Refer to Section 5.
Refer to Table 1-1.
Refer to Appendix A.
Refer to Table 1-2
Installation and Operation Manual
Section 1 Introduction
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Method 516.4, Procedure 1, Functional Shock Test Requirement
SEMI E12Standard temperature and pressure
SEMI E16Guideline for determining and describing MFC leak rates
SEMI E17Guideline for MFC transient characteristics tests
SEMI E18Guideline for temperature specifications of the MFC
SEMI E27Standard for MFC and MFM linearity
SEMI E28Guideline for pressure specifications for the MFC
SEMI E52Practice for referencing gases used in digital MFCs
SEMI E54Sensor actuator network connections for DeviceNet
SEMI E56Test method for detemining accuracy, linearity, repeatability, short-term
reproducibility, hystereses of thermal MFCs
SEMI E66Test method for determining particle contribution by MFCs
SEMI E67Test method for determining reliabilty of MFCs
SEMI E68Test method for determining warm-up time of MFCs
SEMI E69Test method for reproducibilty and zero drift for thermal MFCs
SEMI E80Test method for determining attitude sensitivity of MFCs
SEMI E16-90Guidelines for determining and describing mass flow controllers leak rates
SEMI F19Specification for the finish of the wetted surface of electro polished
216L stainless steel components
SEMI F20Specifications for 316L stainless steel bar, extruded shapes, plate, and
investment castings for components used in ultra-high purity semi
manufacturing applications
SEMI F36Guide for dimensions and connections of gas distribution components
SEMI F37Method for determination of surface roughness parameters for gas
distribution system components
SEMI F44Guideline for standardization of machined stainless steel weld fittings
SEMI F45Guideline for standardization of machined stainless steel reducing fittings
SEMI F47Specifications for semiconductor processing equipment
voltage sag immunity
SEMI S2Environmental, Health and Safety Guidelines
SEMI S9Dielectric testing
SEMI S10Risk assessment
SEMI S12Decontamination of fielded products
GF100 Series
1-3
Section 1 Introduction
GF100 Series
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Table 1-2 Terms and Acronyms
Term or AcronymDefinition
CSRCustomer S pecial Requirement
CVDChemical V apor Deposition
DeviceNetA 5-wire local network I/O communication device
that employs a command/response
communication protocol
DSPDigital Signal Processor
EPI Epitaxy (EPI).A process technology where a pure silicon
crystalline structure is deposited or “grown” on a
bare wafer, enabling a high-purity st arting point
for building the semiconductor device.
HBDHorizontal Base Down
GF100 SeriesIntegrated Flow Controller
F.S.Full Scale
LEDLight Emitting Diode
MFCMass Flow Controller
MultiFlo ConfiguratorI/O communication software package that
configures gas and flow ranges
MultiFlo TechnologyA physics-based calibration methodology that
enables gas and flow range configuration within
a defined standard configuration
PIDProportional Integral Derivative Controller
PSIAPounds per Square Inch Absolute
PSIDPounds per Square Inch Differential
PSIGPounds per Square Inch Gauge
PTIPressure Transient Insensitive. Reduces the
effect of pressure fluctuations in gas flow.
Applicable to GF125 only .
RORAs pressure increases, flow increases at a
pressure rate of rise, or ROR.
HCS tandard Configuration w/ Hastelloy® sensors
(to reduce reaction to corrosive gases)
S.P.Setpoint
S tep TechnologyEnables fast set point control through a high
speed DSP and low volume drive circuit
VIUVertical mounting attitude with inlet side facing up
1-4
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
1-10 Description
Section 1 Introduction
GF100 Series
Ultra Fast Response
The Brooks GF Series patented flow sensor combined with a high speed
ARM processor and fast acting diaphragm-free valve assembly enables:
• Faster response and settling time for improved wafer throughput
• Ultra-fast 1-2 second etch step processing
• Reduced diverted gas consumption and associated abatement costs
• Time sensitive gas delivery steps in Atomic Layer Deposition
• User programmable start-up function for processes requiring a slow
ramped gas turn-on or time critical transitions between flow rates
MultiFlo™ Gas and Range Configurability
The Brooks MultiFlo technology delivers exceptional improvement in
process gas accuracy for linear and non-linear gases. This is achieved
through advanced gas modeling and optimized through actual gas testing.
Brooks MultiFlo
another gas and/or flow range without sacrificing accuracy or rangability .
Selecting a new gas automatically creates a new calibration curve,
establishes optimized PID settings for dynamic control, automatically
compensates for gas density effects, and ensures smooth overshoot-free
transitions between flow rates with excellent steady-state stability . Brooks
MultiFlo technology offers unparalleled flexibility. An extensive gas
database is provided and a single device can be quickly programmed for
thousands of different gas and flow range combinations. Process benefits
achieved:
• Mass flow controller full scale full range can be rescaled down typically by a
factor of 3:1 with no impact on accuracy , turndown or leak by specifications
• Optimum process and inventory flexibility resulting in dramatically reduced
inventory costs
• Fewer configurations/bin sizes required to support many different processes
• Less down-time with rapid process recovery
MultiFloTM Support References: Brooks MultiFlow Configurator Quick
778Z011ZZZBasic MultiFlo Configurator Kit w/Power Supply and
A331710003Cable Assembly 2.5mm
A332300001Converter 232/485
A332295001Power Supply MFC
A332297002Cable, Power , 9-Pin
A332297001Cable, Power , DeviceNet
* MultiFlo Configurator Software is available on the Brooks Instrument
allows the device to be quickly and easily configured for
*Software, MultiFlo Configurator
Adapter Cables *Software, MultiFlo Configurator
1-5
Section 1 Introduction
GF100 Series
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Pressure Transient Insensitivity (PTI)— Included with all GF125 &
GF135 models
Cost and space constraints are driving gas panel designers to remove
point-of-use pressure regulators and pressure monitoring components from
the process design and rely solely on the mass flow controller to accurately
control the process under dynamic pressure conditions. The Brooks GF125
& GF135 (PTI) devices utilize a patented control algorithm that inverts the
pressure signal, compares it to the pre-fluctuation signal and drives realtime valve position compensation to maintain stable flow . Enhanced
pressure transient is achieved through faster sensing, quicker processing,
and a reduction in internal dead-volume between the sensors and valve
orifice.
Optional High Accuracy (HA)— GF125 model only
The GF125 High Accuracy (HA) is a gas and range specific model for
critical gas process applications requiring the widest working range with
tightest flow control accuracy. A typical application is for multi-step
processes requiring a high flow rate, up to 10 slpm, and a very accurate
low flow rate.
Optional Safe Delivery System (SDS)— GF120 model only
The Safe Delivery System (SDS) enhanced GF120 model is a state-of-theart low pressure drop devices for the delivery of sub atmospheric safe
delivery system gases used in Implant and Etch processes. The Brooks
GF120 SDS models are available in full scale flow ranges 4 sccm -1 slpm.
Advanced Thermal Flow Measurement Sensor
Brooks proprietary highly corrosion resistant Hastelloy C-22 sensor with an
enhanced sensor manufacturing and burn in process incorporates a unique
orthogonal sensor mounting orientation to eliminate sensor drift caused by
valve heating effects and eliminates thermal siphoning effects. This unique
sensor configuration includes an optimized temperature profile for gases
prone to thermal decomposition. This design results in:
• Enhanced signal to noise performance for improved accuracy at low
set points
• Superior reproducibility at elevated temperature through new
isothermal packaging and onboard conditioning electronics with
ambient temperature sensing and compensation
• Improved long-term stability
High Purity Flow Path
The Brooks GF Series has an all metal, corrosion resistant Semi F20
compliant wetted flow path with highly corrosion resistant Hastelloy C-22
valve seat and jet orifice. The GF120, GF125 & GF135 devices are
constructed with a 4µ inch Ra max surface finish while the GF100 is
constructed with a 10µ inch Ra.
• Overall reduced surface area and un-swept volumes for faster dry-down
during purge steps
• Long-term sensor and device stability for maximum yield and throughput
1-6
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Section 1 Introduction
GF100 Series
Extensive Mechanical Configurations
GF Series supports all metal seal/UHP industry gas connection interface
standards for full OEM and process coverage.
• Downport 79.8mm and 92mm C-seal and W-seal on 1-1/8" and 1-1/2"
bodies
• 124mm 4 VCR on 1-1/2" body
Enhanced Diagnostics and User Interface
The mass flow controller is one of the most complex and critical
components in gas delivery systems. When dealing with ultra-high-purity
gas distribution or highly toxic or corrosive gases, removing the mass flow
controller to assess functionality should be the last resort. Brooks GF
Series devices provide for in-line device evaluation and instantaneous
troubleshooting through:
• Embedded self test routines and independent diagnostic/service port
• High visibility LCD display with easy accessible push button for local
indication of Flow (%), Temperature (oC), Pressure (PSIA/kPa) and
Network Address
• Zero button to easily re-zero the device during scheduled maintenance
This combination of features results in limiting service interruption and
reduced downtime.
Figure 1-2 LED Display
Communication Interfaces
The GF100 Series supports analog 0-5 Vdc, RS485, and DeviceNet™
communication protocols. Analog connections can be accessed via the
DeviceNet or RS485 or Analog only connector options. DeviceNet and
RS485 are multi-drop connections that allow a maximum of 64 devices for
DeviceNet and 32 devices for RS485 to be connected on the same
network. Brooks Instrument’s DeviceNet profile has been certified by the
ODV A™ (Open DeviceNet Vendor’s Association). A range of low profile
adapter cables facilitate replacing previously installed devices eliminating
the need to carry multiple devices of the same gas/range but different
electrical connectors.
1-7
Section 1 Introduction
GF100 Series
1-11 Specifications for GF100 Series Devices
See Table 1-3 for specifications for standard GF100 Series.
See Table 1-4 for specifications for the high accuracy (HA) GF100 Series.
See Table 1-5 for specifications for the Safe Delivery System (SDS) GF100
Series.
See Table 1-6 for specifications for the GF135 Series.
See Figure 1-3 for dimensions for the GF100 Series.
See Figures 1-4 & 1-5 for dimensions for the GF135 Series.
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
1-8
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Table 1-3 Specifications for Standard GF100 Series
GF100GF100
GF100
PP
erformanceerformance
P
erformance
PP
erformanceerformance
Full Scale Flow Range (NFull Scale Flow Range (N
Full Scale Flow Range (N
Full Scale Flow Range (NFull Scale Flow Range (N
Flow Flow
AccurAccur
Flow
Flow Flow
Repeatability & ReprRepeatability & Repr
Repeatability & Repr
Repeatability & ReprRepeatability & Repr
LinearityLinearity
Linearity + 0.5% F.S. (included in accuracy)
LinearityLinearity
Response Response
Response
Response Response
Normally Closed Normally Closed
Normally Closed
Normally Closed Normally Closed
Normally Open Normally Open
Normally Open
Normally Open Normally Open
PrPr
Pr
PrPr
ConCon
Con
ConCon
MultiFloMultiFlo
MultiFlo optional standard
MultiFloMultiFlo
#of Bins#of Bins
#of Bins 11 bins
#of Bins#of Bins
VV
V
VV
VV
V
VV
ZZ
Z
ZZ
TT
emperemper
T
emper
TT
emperemper
acyacy
Accur
acy +1% S.P. > 35-100%, +0.35% F.S. 2-35%
AccurAccur
acyacy
Time (Settling Time (Settling
Time (Settling
Time (Settling Time (Settling
VV
V
VV
essuressur
e Insensitivitye Insensitivity
essur
e Insensitivity Not Applicable
essuressur
e Insensitivitye Insensitivity
trtr
ol Rangeol Range
tr
ol Range 2-100% (Normally Closed Valve) 3-100% (Normally Open Valve)
trtr
ol Rangeol Range
alve Shut Down (N.C. alve Shut Down (N.C.
alve Shut Down (N.C.
alve Shut Down (N.C. alve Shut Down (N.C.
alve Shut Down (N.O. alve Shut Down (N.O.
alve Shut Down (N.O.
alve Shut Down (N.O. alve Shut Down (N.O.
erer
o Stabilityo Stability
er
o Stability < + 0.5% F.S. per year
erer
o Stabilityo Stability
aturatur
e Coefficiene Coefficien
atur
e Coefficien
aturatur
e Coefficiene Coefficien
Eq.) Eq.)
Eq.)3 sccm to 55 slm
Eq.) Eq.)
22
2
22
oducibilityoducibility
oducibility < + 0.15% S.P.
oducibilityoducibility
Time)Time)
Time)300ms (3-860 sccm N2 Eq.)
Time)Time)
VV
alvealve
V
alve < 1 sec <1 sec400ms (861-7200 sccm N2 Eq.)
VV
alvealve
alvealve
alve <1.5 sec
alvealve
VV
alve)alve)
V
alve) < 1% of F.S.
VV
alve)alve)
VV
alve)alve)
V
alve) 2% of F.S.
VV
alve)alve)
tt
t Span: 0.005% full scale per oC, Zero: 0.001% full scale per oC
*Argon gas applications require an additional 10 psid differential pressure.
Low vapor pressure gases require an inlet pressure of > 100 Torr, with vacuum on outlet
(example SiCl4). Contact Brooks Technical Support for more information.
500 psia max 100 psia max
Normally Open (>93sccm flow rate N2 Equivalent)
Meter (no valve)
>20 to 50 sccm < 20 Torr
>50 sccm to 1 slpm < 50 Torr
0.005% full scale per oC, Zero:
GF120XSDGF120XSD
GF120XSD
GF120XSDGF120XSD
atm. cc/sec He
0.001% full scale per oC
GF120XSLGF120XSL
GF120XSL
GF120XSLGF120XSL
*Performance at minimum inlet pressure will
be gas and flow range dependent. Consult
Technical Support for details.
**Typical pressure drop. Actual pressure drop
will be gas and flow dependent. Consult
Technical Support for details.
***Consult factory for other gases.
Installation and Operation Manual
Section 1 Introduction
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
**Typical pressure drop. Actual pressure drop will be gas and flow dependent.
Argon gas applications require higher differential pressure.
Low vapor pressure gases require an inlet pressure of > 100 Torr, with vacuum on outlet
(example SiCl4). Contact Brooks Technical Support for more information.
e:e:
e:
43.5 psia - 72.5 psia
e:e:
Sensor Drift, Flow Error, Valve Leak
Analog /RS485: +/-15 Vdc. (+10%), 6 Watts (max) or +24 Vdc +/-10%
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Model GF135, DeviceNet, C-Seal Connections
Section 1 Introduction
GF100 Series
Model GF135, DeviceNet, VCR Connections
Figure 1-4 Dimensions - GF135, DeviceNet
1-13
Section 1 Introduction
GF100 Series
Model GF135, RS485, C-Seal Connections
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Model GF135, RS485, VCR Connections
1-14
Figure 1-5 Dimensions - GF135 Series, RS485
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
2-1 General
2-2 Receipt of Equipment
Section 2 Installation
GF100 Series
This section provides installation instructions for the Brooks GF100 Series
Thermal Mass Flow Devices. The installation process consists of purging
the gas supply line prior to installation, unpacking and inspecting the
device, connecting the device to the gas supply line and testing for leaks.
When the instrument is received, the outside packing case should be checked
for damage incurred during shipment. If the packing case is damaged, the
local carrier should be notified at once regarding their liability . A report should
be submitted to your nearest Product Service Department.
Brooks Instrument
407 W. Vine Street
P.O. Box 903
Hatfield, PA 19440 USA
T oll Free (888) 554 FLOW (3569)
T el (215) 362 3700
Fax (215) 362 3745
E-mail: BrooksAm@BrooksInstrument.com
www.BrooksInstrument.com
Zur Wetterwarte 50 Haus 377/B,D-406 Bundang T echno Park 151
01109 DresdenSungnam, Kyungki-do, 463-070
GermanyKorea
T el +49 (0) 351 215 20 442T el +82 31 708 2522
In case you need technical assistance:
USA 888 275 8946Taiwan +886 3 5590 988
Europe +49 351 215 2040China +86 21 5079 8828
Japan +81 3 5633 7100Singapore +6297 9741
Korea +82 31 708 2521
Remove the envelope containing the packing list. Outside of your clean area,
carefully remove the equipment from the packing case. Make sure spare parts
are not discarded with the packing material. Inspect the contents for damaged
or missing parts.
This device has been assembled, calibrated, and double-vacuum bagged in
a Class 100 clean room. In your semi-clean area, remove the outer bag
only . Pass the device into your clean area. Remove the second clean room
compatible bag only when the device is ready to be tested and/or installed
in your clean system.
If intermediate or long-term storage of the device is required, it is
recommended that it be stored in accordance with the following conditions:
Prior to returning any device to the factory , visit the Brooks web site
(www.BrooksInstrument.com) for a Return Materials Authorization Number
(RMA#), or contact one of the locations provided on p. 2-1.
Prior to returning the device, it must be purged in accordance with the
following:
All flow devices returned to Brooks require completion of Form RPR003-1,
Brooks Instrument Decontamination St atement, along with a Material
Safety Data Sheet (MSDS) for the fluid(s) used in the instrument. Failure
to provide this information will delay processing by Brooks personnel.
Copies of these forms can be downloaded from the Brooks website
(www.BrooksInstrument.com) or are available from any of the Brooks
Instrument locations provided on p. 2-1.
2-5 Transit Precautions
2-6 Removal from Storage
2-7 Gas Connections
2-8 In-Line Filter
T o safeguard against damage during transit, transport the device to the
installation site in the same container used for transportation from the
factory, if circumstances permit.
Upon removal of the device from storage, a visual inspection should be
conducted to verify its "as-received" condition. If the device has been
subject to storage conditions in excess of those recommended (refer to
"2-3 Recommended Storage Practice" on p. 2-1), it should be subjected
to a pneumatic pressure test in accordance with applicable vessel codes.
T o maintain a devices ultraclean integrity, this service should be
performed by the factory or one of the certified service centers.
Prior to installation, ensure that all piping is clean and free from
obstructions. Install piping in such a manner that permits easy access to
the device if removal becomes necessary .
2-2
It is recommended that an in-line filter be installed upstream from the
device to prevent the possibility of any foreign material entering the flow
sensor or control valve. The filtering element should be replaced
periodically or ultrasonically cleaned.
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
2-9 Mechanical Installation
Section 2 Installation
GF100 Series
The recommended installation procedure guidelines are as follows:
• The device should be located in a clean, dry atmosphere relatively free
from shock and vibration.
• Leave sufficient room for access to the user interface, display and MAC
ID and baud rate switches (if equipped) at the top of the device.
• Install the device in such a manner that permits easy purge and removal if
the device requires servicing.
The GF100 Series is equipped with PTI technology , which reduces the
effect of pressure fluctuations on gas flow . In PTI technology, a signal from
an integrated pressure transducer is combined with the standard thermal
sensor output. The combined signals allow precise and stable flow , even
when the line pressure is fluctuating.
The GF100 Series also utilizes MultiFlo® technology that allows the user to
configure standard configurations ("SHs") or "blanks" for a variety of pure
gases and mixtures. As a result, MultiFlo® technology enables the user to
reduce unique inventory requirements.
2-3
Section 2 Installation
GF100 Series
2-10 Flow Controller Installation Arrangement
Typical gas supply arrangements are shown in Figures 2-1 and 2-2.
GF100's are often arranged inside a gas panel. Configure standard
configurations ("SHs") or "blanks" for a variety of pure gases and mixtures.
As a result, MultiFlo technology enables the user to reduce unique
inventory requirements.
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
Figure 2-1 Typical Gas Supply Arrangement with non-PTI MFC
Figure 2-2 T ypical Gas Supply Arrangement with PTI MFC
2-4
Installation and Operation Manual
X-TMF-GF100-Series-MFC-eng
Part Number: 541B137AAG
March, 2013
2-11 Purge the Gas Supply Line Before GF100 Series Inst allation
Section 2 Installation
GF100 Series
Before operating the GF100 Series, the gas supply line must be completely
purged with nitrogen or argon to ensure the line is free from toxic or
flammable gases, contaminants, moisture, and oxygen. The purge gas must
be free of moisture and oxygen to less than 100 ppb. Purge the gas lines as
follows or in accordance to prescribed company and safety procedures.
1. Shut off the process gas supply valve(s) upstream of the GF100 Series.
If such a valve is not available, shut the valve on the gas panel. Tag the
valve at this point to prevent accidental re-exposure of the process gas
to the gas line.
2. Cycle purge the gas line with dry nitrogen or argon to fully flush out the
process gas. Cycle purging consists of evacuating to a low pressure
adequate to induce out-gassing and then purging to remove adhered
moisture and oxygen. If a toxic or reactive gas is present and a clogged
GF100 Series is suspected, then proceed with caution. Pump down and
purge the GF100 Series from both downstream and upstream lines. If
check valves are present in the gas line, both pumping down and
purging are required. Pumping down without purging is inadequate. If a
good vacuum source is not available, the GF100 Series can be decontaminated by purge only .
3. Repeat the purge cycle several times within 2-4 hours to complete the
cleaning. For toxic and corrosive gasses, it is recommended to use 100120 cycles.
2-5
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