Agilent Varian Calibrated Leak Replacement for VS Series Helium Leak Detectors. Agilent Varian PN: VSFLDCL This is a replacement calibrated leak for the Agilent Varian VS Series Helium Leak Detectors. The calibrated leaks are certified for one year. Agilent recommends that calibrated leaks be replaced or recertified on an annual basis. Manuals are available below to service, install and calibrate the Agilent VS Series Helium Leak Detectors.

Agilent Varian Filament Replacement Kit of 2 for Varian VS Series Helium Leak Detectors. Agilent Varian Part Number: VSFLDHFR (Replaces Part Number: R3428301). The Agilent Varian Filament Replacement Kit it is specially designed for VS Series Helium Mass Spectrometer Leak Detectors. This kit includes 2 filaments. (This kit does NOT includes the Ion support nor the metal gaskets) Equipment and tools are may required for installation. • Extended Length M5 Allen Wrench• Metric Allen Wrench Set (Range 1.5 mm to 10 mm)• Needle nose pliers or tweezer• M3 Phillips Head Screw Driver• 1.5 mm Hex Driver• 5 mm Hex Driver• Torque Wrench (must be adjustable to 45 in-lbs (5.0 N-m) and 90 in-lbs (10.2 N-m))• Digital Multimeter (Fluke 187 or equivalent)

Filament Replacement Kit For Varian VS Series Helium Mass Spectrometer Leak Detectors. Includes 2 Filaments & Metal Gaskets. Agilent Varian PN: VSFLDHFR FOR VS UNITS MANUFACTURED AFTER 8/18/09 ONLY The Ion Source Replacement Kit it is specially designed for VS Series Helium Mass Spectrometer Leak Detectors. This kit includes 2 Filaments and metal gaskets. (This kit does NOT includes the Ion support). This kit is for VS UNITS MANUFACTURED AFTER 8/18/09 ONLY Equipment and tools required for installation. • Extended Length M5 Allen Wrench • Metric Allen Wrench Set (Range 1.5 mm to 10 mm) • Needle nose pliers or tweezer • M3 Phillips Head Screw Driver • 1.5 mm Hex Driver • 5 mm Hex Driver • Torque Wrench (must be adjustable to 45 in-lbs (5.0 N-m) and 90 in-lbs (10.2 N-m)) • Digital Multimeter (Fluke 187 or equivalent)

Filament Replacement Kit For Varian VS Series Helium Mass Spectrometer Leak Detectors. Includes 2 Filaments & Metal Gaskets.Varian Agilent PN: VSFLDFRFor FOR VS UNITS MANUFACTURED BEFORE 8/18/09 ONLY. The Ion Source Replacement Kit it is specially designed for VS Series Helium Mass Spectrometer Leak Detectors. This kit includes 2 Filaments and metal gaskets. (This kit does NOT includes the Ion support). This kit is for VS UNITS MANUFACTURED BEFORE 8/18/09 ONLY. Equipment and tools required for installation. • Extended Length M5 Allen Wrench• Metric Allen Wrench Set (Range 1.5 mm to 10 mm)• Needle nose pliers or tweezer• M3 Phillips Head Screw Driver• 1.5 mm Hex Driver• 5 mm Hex Driver• Torque Wrench (must be adjustable to 45 in-lbs (5.0 N-m) and 90 in-lbs (10.2 N-m))• Digital Multimeter (Fluke 187 or equivalent)

Ion Source Replacement Kit for Varian VS Series Helium Mass Spectrometer Leak Detectors. Comes with Ion support, 2 Filaments and metal gaskets. PN: VSFLDHIS The Ion Source Replacement Kit is specially designed for VS Series helium mass spectrometer leak detectors. This kit includes the Ion support, 2 Filaments and metal gaskets. Equipment & tools required for installation. • Extended Length M5 Allen Wrench • Metric Allen Wrench Set (Range 1.5 mm to 10 mm) • Needle nose pliers or tweezer • M3 Phillips Head Screw Driver • 1.5 mm Hex Driver • 5 mm Hex Driver • Torque Wrench (must be adjustable to 45 in-lbs (5.0 N-m) and 90 in-lbs (10.2 N-m)) • Digital Multimeter (Fluke 187 or equivalent)

Agilent Varian Metal Seal Gasket Replacement Kit for Varian VS Series Helium Leak Detectors. Includes Metal Gaskets. Agilent Varian Part Number: VSFLDMG The Metal Seal Gasket Replacement Kit it is specially designed for VS Series Helium Mass Spectrometer Leak Detectors. This kit includes the metal gaskets only. (This kit does NOT include the ion supports or the filaments). Agilent Varian Part number VSFLDMG Equipment and tools that may be required for installation. • Extended Length M5 Allen Wrench• Metric Allen Wrench Set (Range 1.5 mm to 10 mm)• Needle nose pliers or tweezer• M3 Phillips Head Screw Driver• 1.5 mm Hex Driver• 5 mm Hex Driver• Torque Wrench (must be adjustable to 45 in-lbs (5.0 N-m) and 90 in-lbs (10.2 N-m))• Digital Multimeter (Fluke 187 or equivalent)

NEW Agilent Varian 979, 959, and VS series Helium Leak Detector Kit For Cleaning of Vacuum And Spectrometer Tube 670029096 These NEW Agilent Varian 979, 959, and VS series Helium Leak Detector Cleaning Kit are for cleaning of the vacuum mass spectrometer tube. These kits include the VacuSolv wipes for cleaning which will not leave a residue in the mass spectrometer, lint free clothes, & other required cleaning items. These kits can be used with most Agilent Varian helium leak detectors, including the 979, 959, and VS series. Agilent Varian part number 670029096.

Mass Varian VS Portable Helium Mass Spectrometer Leak Detector Diaphragm Pump Maintenance Kit. Agilent Varian PN VSFLDDP This is a Maintenance Kit for the Diaphragm Pump in the Agilent Varian VS PD03 Portable Leak detector with Dry Scroll Pump Combo. Part number of VS PDO3 Portable Leak Detector is G8600B.

Agilent Varian VS C15, Display Front Panel Unit, LCD Display with Touch Panel, Helium-Leak-Detectors. Agilent Technologies Part Number VSC15DU The VS C15 Display Front Panel consists of a LCD display with a Touch Panel to access the software control screens. All operator control and monitoring of results are achieved via the resident software accessed using the HOME screen.

Agilent Varian Wireless Remote Base Unit, for Agilent Varian VS series Helium Mass Spectrometer Leak Detectors. Agilent Varian Part Number: G8600-68001 (Replaces Old PN: VSFLDWB). These Agilent Varian Wireless Remote Base units are designed to upgrade the VS series leak detectors to work with the wireless remote control model G8600-60002 (sold separately). This base unit works with Agilent Varian VS series helium leak detectors. If the leak detector wasn’t ordered with wireless configured and the antenna integrated from Agilent, then the Agilent Varian Wireless Remote Base upgrades the leak detector to have the ability to receive and transmit signals to the Agilent Wireless Remote. The wireless remote base unit works with the wireless remote to provide remote information and control functions of the helium leak detector and provide signal for the level of helium leak being detected. This is the wireless remote base unit ONLY and comes with the antenna and conectors needed for installation, this is NOT the wireless remote control. Accessories, wireless remote control, leak detectors are sold separately. On the Download section, you will find documentation with instructions on how to field install the Remote Base unit into the VS series Mass Spectrometer Leak Detectors.

Agilent Varian Wireless Remote Base Unit for HLD G86 G8610, G8611, or G8612 series Helium Leak Detectors Helium Mass Spectrometer Leak Detectors. Agilent Technology Part Number: G8610-63000 These Agilent Varian Wireless Remote Base units work with the wireless remote control model G8600-60002 (sold separately). These base units are for Agilent Varian HLD G8610, G8611, or G8612 series leak detectors. If the leak detector wasn’t ordered with wireless configured and the antenna integrated from Agilent, then the Agilent Varian Wireless Remote Base upgrades the leak detector to have the ability to receive and transmit signals to the Agilent Wireless Remote. The wireless remote base unit works with the wireless remote to provide remote information and control functions of the helium leak detector and provide signal for the level of helium leak being detected. This is the wireless remote base unit ONLY and comes with the antenna and conectors needed for installation, this is NOT the wireless remote control. Accessories, wireless remote control, leak detectors are sold separately. On the Download section, you will find documentation with instructions on how to field install the Remote Base unit into the VS series Mass Spectrometer Leak Detectors.

NEW Agilent Varian Leak Detector Test Data Software, for VS Helium Mass Spectrometer Leak Detector (CD), PN VSLTDW The Varian Leak Test Data Wizard software operates the VS Series leak detectors remotely from a PC/Laptop via an easily configured serial port connection. The software is a comprehensive data management package, which can be described as follows: This Software Enables the Following: Data recording and plotting mode: Displays and stores Leak Rate vs. Time and Test Port Pressure vs. Time data. Multiple Parts Testing Mode: Custom automation of basic leak test processes. Leak rate test results are graphically displayed and statistically stored and tracked. Basic Control Panel Functions: Remotely operate the leak detector from a PC. Includes CD Operation Manual, please download and read .pdf of Operation Manual before installation (See Below for Download). This Software can only be used with a Windows 98, 2000 or XP Operating System PC. If your PC does not have a Serial Port you will need a USB to Serial Port Adapter (Sold on this Website Part Number P104165). A user's operation manual .PDF can be downloaded below from (AVAILABLE DOWNLOADS).

Agilent Varian INTERNAL FILTER (KIT OF 5) FOR PHD-4 Portable Leak Detector Agilent Part Number SR03702959 This is an Internal filter kit of 5 for the portable Agilent Varian PHD-4 Leak Detector. The PHD-4 is a complete battery powered portable helium leak device. The battery pack can be recharged only and exclusively inside the PHD-4, connecting the Agilent SR03.702888 power supply unit to the power supply port 3 (Power Supply connector). The PHD-4 portable leak detector permits fully automatic detection of concentrations of helium down to a lower limit of 2 parts for million (ppm). The value of the leak is shown in real time on the graphic display on the front panel. Since the sniffer is microprocessor controlled it is easy to use and no training is required. The instrument, which emits an acoustic signal proportional to the concentration of helium detected, incorporates a self-test program, making it possible to carry out any type of operation using the soft keys on the front control panel. The operator can use the straps provided to carry the unit and locate leaks using the extensible probe. The system to be tested is filled with a mixture of helium/air. The probe is passed over areas considered to be critical and, via a sampling pump, the mix of gases around the areas examined is sampled and piped towards the internal sensor. The sensor consists of a pressure detector and of a heated quartz capillary which is highly permeable to the molecules of helium, while permeability for all other atmospheric gases is negligible. While the atmospheric gases are vented to the outside, the molecules of helium reach the pressure detector. The electric signal proportional to the partial pressure of the helium taken from the detector, is processed by the microprocessor of the central unit. This permits direct readout of the concentration of helium on the display. The unit only weighs 5.7 lbs with battery and is microprocessor controlled. Fully automatic start up and ready to find that pressure leak in less than 3 minutes. For complete operation of the PHD-4 see instruction manual.pdf below at (AVAILABLE DOWNLOADS) Helium Leak Testing Basics Helium mass spectrometry, or helium leak testing, is a highly precise means of leak detection. This technology was first developed for the Manhattan Project during World War II to locate extremely small leaks in the gas diffusion process. At the heart of helium leak testing is a complex piece of equipment called a helium mass spectrometer. Quite simply, this machine is used to analyze air samples (which are introduced into the machine via vacuum pumps) and provides a quantitative measurement of the amount of helium present in the sample. In practice, a leak, is identified by a rise in the level of helium being analyzed by the machine. Helium leak testing can identify extremely small leaks. For example, our equipment can detect a leak so small that it would emit just two cubic centimeters of helium (or the amount equal to two sugar cubes) in 320 years. While very few applications require this level of precision, this example serves to highlight the accuracy possible with this process. While helium leak detection may appear to be a simple procedure, the process involves a combination of both art and science. The user must ensure the equipment is functioning properly and the process is highly dependant upon the user’s experience. Consider this analogy: while anyone with enough money can buy an airplane, learning how to fly one takes a lot of practice. The same is true with helium leak detection—make sure your pilot knows how to fly. Why Is Helium Superior? While many gases are used in leak detection, helium’s qualities provide for superior testing. Having an AMU (Atomic Mass Unit) of only 4, helium is the lightest inert gas. Only hydrogen, with an AMU of 2, is lighter than helium. However, due the hydrogen’s explosive potential it is rarely used. Additional reasons why helium is a superior tracer gas: Only modestly present in the atmosphere (roughly 5 parts per million) Flows through cracks 2.7x faster than air Nontoxic Nondestructive Nonexplosive Inexpensive User Friendly Due to these attributes, and its high sensitivity, helium leak testing has gained broad acceptance in a wide range of leak testing applications. Helium Leak Testing’s two primary testing modes while there are a variety of testing procedures, in general there are: Two primary methods of helium leak testing: Spray Probe Sniffer Probe The choice between these two modes is based on both the size of the system being tested, as well as, the level of sensitivity required. Spray Probe: Provides Maximum Sensitivity For this technique, the leak detector is hooked directly to the system under test and the inside of the system is evacuated. Once an acceptable vacuum is achieved, helium is sprayed discreetly on the outside of the system, with particular attention being paid to any suspect locations. Any leaks in the system, including defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect will allow helium to pass and be readily detected by the machine. The source of any leaks can then be accurately pinpointed and repaired. The spray probe process is used to achieve the highest level of sensitivity. The equipment being used dictates the maximum sensitivity achievable; in Jurva Leak Testing’s case it is 2x10-10 std cc/sec. This technique does require that the system being tested is relatively leak tight prior to testing, as an ample vacuum is required for testing. However, by using special throttling devices a gross test can typically be performed. The gross test should eliminate any major leaks, permitting the use of increased sensitivity. The following are examples of systems that we test using the spray probe technique: A-bar furnaces E-beam systems Laser systems Metal deposition equipment Distillation systems Vacuum systems Sniffer Probe For this technique, helium is purged throughout the inside of system being tested. Due to the innate properties of helium it readily migrates throughout the system and in its attempt to escape penetrates any imperfections, including: defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect. The system’s exterior is then scanned by using a probe attached to the leak tester. Any leaks will result in an increased level of helium nearest the source and be readily detected. Leak sources can then be pinpointed, providing the opportunity for immediate repair and retest. Unlike the spray probe technique, this process is very flexible and can be adapted to meet the needs of any virtually any system in which helium can be injected. There is no practical size limitation. The sniffer probe technique is not as sensitive as the spray probe process, however, due to the amount of helium present in the air (approximately 5 ppm). The maximum sensitivity achievable under this procedure is approximately 1x10-6 std cc/sec. Nevertheless, this process is vastly superior to other traditional leak testing methods, such as: bubble testing, acoustic emission, liquid penetrant or vacuum box testing. The following list is an example of systems that Jurva Leak Testing has tested using the sniffer probe process: Storage tanks (both above ground and below) Floating roofs Underground pipelines Underground cables Aseptic systems (flash coolers, heat exchangers, fillers, etc.) Any vessel/line or system that can be pressurized Specialized Testing Techniques In addition to the two primary testing procedures listed above, there are a number of more specialized techniques that can be utilized. Among these techniques, we routinely employ bagging or hooding and bombing. (content nicely written by Jurva Leak Testing, http://www.jurvaleaktesting.com/HeliumLeakTesting.html)

Agilent Varian Tip Probe Filter FOR PHD-4 Portable Leak Detector Agilent Part Number SR2890001201 This is a tip probe filter for the portable Agilent Varian PHD-4 Leak Detector. The PHD-4 is a complete battery powered portable helium leak device. The battery pack can be recharged only and exclusively inside the PHD-4, connecting the Agilent SR03.702888 power supply unit to the power supply port 3 (Power Supply connector). The PHD-4 portable leak detector permits fully automatic detection of concentrations of helium down to a lower limit of 2 parts for million (ppm). The value of the leak is shown in real time on the graphic display on the front panel. Since the sniffer is microprocessor controlled it is easy to use and no training is required. The instrument, which emits an acoustic signal proportional to the concentration of helium detected, incorporates a self-test program, making it possible to carry out any type of operation using the soft keys on the front control panel. The operator can use the straps provided to carry the unit and locate leaks using the extensible probe. The system to be tested is filled with a mixture of helium/air. The probe is passed over areas considered to be critical and, via a sampling pump, the mix of gases around the areas examined is sampled and piped towards the internal sensor. The sensor consists of a pressure detector and of a heated quartz capillary which is highly permeable to the molecules of helium, while permeability for all other atmospheric gases is negligible. While the atmospheric gases are vented to the outside, the molecules of helium reach the pressure detector. The electric signal proportional to the partial pressure of the helium taken from the detector, is processed by the microprocessor of the central unit. This permits direct readout of the concentration of helium on the display. The unit only weighs 5.7 lbs with battery and is microprocessor controlled. Fully automatic start up and ready to find that pressure leak in less than 3 minutes. For complete operation of the PHD-4 see instruction manual.pdf below at (AVAILABLE DOWNLOADS) Helium Leak Testing Basics Helium mass spectrometry, or helium leak testing, is a highly precise means of leak detection. This technology was first developed for the Manhattan Project during World War II to locate extremely small leaks in the gas diffusion process. At the heart of helium leak testing is a complex piece of equipment called a helium mass spectrometer. Quite simply, this machine is used to analyze air samples (which are introduced into the machine via vacuum pumps) and provides a quantitative measurement of the amount of helium present in the sample. In practice, a leak, is identified by a rise in the level of helium being analyzed by the machine. Helium leak testing can identify extremely small leaks. For example, our equipment can detect a leak so small that it would emit just two cubic centimeters of helium (or the amount equal to two sugar cubes) in 320 years. While very few applications require this level of precision, this example serves to highlight the accuracy possible with this process. While helium leak detection may appear to be a simple procedure, the process involves a combination of both art and science. The user must ensure the equipment is functioning properly and the process is highly dependant upon the user’s experience. Consider this analogy: while anyone with enough money can buy an airplane, learning how to fly one takes a lot of practice. The same is true with helium leak detection—make sure your pilot knows how to fly. Why Is Helium Superior? While many gases are used in leak detection, helium’s qualities provide for superior testing. Having an AMU (Atomic Mass Unit) of only 4, helium is the lightest inert gas. Only hydrogen, with an AMU of 2, is lighter than helium. However, due the hydrogen’s explosive potential it is rarely used. Additional reasons why helium is a superior tracer gas: Only modestly present in the atmosphere (roughly 5 parts per million) Flows through cracks 2.7x faster than air Nontoxic Nondestructive Nonexplosive Inexpensive User Friendly Due to these attributes, and its high sensitivity, helium leak testing has gained broad acceptance in a wide range of leak testing applications. Helium Leak Testing’s two primary testing modes while there are a variety of testing procedures, in general there are: Two primary methods of helium leak testing: Spray Probe Sniffer Probe The choice between these two modes is based on both the size of the system being tested, as well as, the level of sensitivity required. Spray Probe: Provides Maximum Sensitivity For this technique, the leak detector is hooked directly to the system under test and the inside of the system is evacuated. Once an acceptable vacuum is achieved, helium is sprayed discreetly on the outside of the system, with particular attention being paid to any suspect locations. Any leaks in the system, including defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect will allow helium to pass and be readily detected by the machine. The source of any leaks can then be accurately pinpointed and repaired. The spray probe process is used to achieve the highest level of sensitivity. The equipment being used dictates the maximum sensitivity achievable; in Jurva Leak Testing’s case it is 2x10-10 std cc/sec. This technique does require that the system being tested is relatively leak tight prior to testing, as an ample vacuum is required for testing. However, by using special throttling devices a gross test can typically be performed. The gross test should eliminate any major leaks, permitting the use of increased sensitivity. The following are examples of systems that we test using the spray probe technique: A-bar furnaces E-beam systems Laser systems Metal deposition equipment Distillation systems Vacuum systems Sniffer Probe For this technique, helium is purged throughout the inside of system being tested. Due to the innate properties of helium it readily migrates throughout the system and in its attempt to escape penetrates any imperfections, including: defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect. The system’s exterior is then scanned by using a probe attached to the leak tester. Any leaks will result in an increased level of helium nearest the source and be readily detected. Leak sources can then be pinpointed, providing the opportunity for immediate repair and retest. Unlike the spray probe technique, this process is very flexible and can be adapted to meet the needs of any virtually any system in which helium can be injected. There is no practical size limitation. The sniffer probe technique is not as sensitive as the spray probe process, however, due to the amount of helium present in the air (approximately 5 ppm). The maximum sensitivity achievable under this procedure is approximately 1x10-6 std cc/sec. Nevertheless, this process is vastly superior to other traditional leak testing methods, such as: bubble testing, acoustic emission, liquid penetrant or vacuum box testing. The following list is an example of systems that Jurva Leak Testing has tested using the sniffer probe process: Storage tanks (both above ground and below) Floating roofs Underground pipelines Underground cables Aseptic systems (flash coolers, heat exchangers, fillers, etc.) Any vessel/line or system that can be pressurized Specialized Testing Techniques In addition to the two primary testing procedures listed above, there are a number of more specialized techniques that can be utilized. Among these techniques, we routinely employ bagging or hooding and bombing. (content nicely written by Jurva Leak Testing, http://www.jurvaleaktesting.com/HeliumLeakTesting.html)

Agilent Varian Replacement Sampling Pump for PHD-4 Portable Helium Leak Detector. Agilent Part Number: SR03702513. This is a replacement sampling pump for the portable Agilent Varian Helium leak detector. The sampling pump is the device that makes it possible to move the gas to be analyzed, from the point where a leak is suspected, to the sensor inside the PHD-4. If impurities from the gas to be analyzed collect in sufficient quantity, pump performance becomes inefficient. Eventually, a fault will be generated (upon power up initialization of the PHD-4) and the pump must be replaced. The PHD-4 is a complete battery powered portable helium leak device. The battery pack can be recharged only and exclusively inside the PHD-4, connecting the Agilent SR03.702888 power supply unit to the power supply port 3 (Power Supply connector). The PHD-4 portable leak detector permits fully automatic detection of concentrations of helium down to a lower limit of 2 parts for million (ppm). The value of the leak is shown in real time on the graphic display on the front panel. Since the sniffer is microprocessor controlled it is easy to use and no training is required. The instrument, which emits an acoustic signal proportional to the concentration of helium detected, incorporates a self-test program, making it possible to carry out any type of operation using the soft keys on the front control panel. The operator can use the straps provided to carry the unit and locate leaks using the extensible probe. The system to be tested is filled with a mixture of helium/air. The probe is passed over areas considered to be critical and, via a sampling pump, the mix of gases around the areas examined is sampled and piped towards the internal sensor. The sensor consists of a pressure detector and of a heated quartz capillary which is highly permeable to the molecules of helium, while permeability for all other atmospheric gases is negligible. While the atmospheric gases are vented to the outside, the molecules of helium reach the pressure detector. The electric signal proportional to the partial pressure of the helium taken from the detector, is processed by the microprocessor of the central unit. This permits direct readout of the concentration of helium on the display. The unit only weighs 5.7 lbs with battery and is microprocessor controlled. Fully automatic start up and ready to find that pressure leak in less than 3 minutes. Helium Leak Testing BasicsHelium mass spectrometry, or helium leak testing, is a highly precise means of leak detection. This technology was first developed for the Manhattan Project during World War II to locate extremely small leaks in the gas diffusion process.At the heart of helium leak testing is a complex piece of equipment called a helium mass spectrometer. Quite simply, this machine is used to analyze air samples (which are introduced into the machine via vacuum pumps) and provides a quantitative measurement of the amount of helium present in the sample. In practice, a leak, is identified by a rise in the level of helium being analyzed by the machine.Helium leak testing can identify extremely small leaks. For example, our equipment can detect a leak so small that it would emit just two cubic centimeters of helium (or the amount equal to two sugar cubes) in 320 years. While very few applications require this level of precision, this example serves to highlight the accuracy possible with this process.While helium leak detection may appear to be a simple procedure, the process involves a combination of both art and science. The user must ensure the equipment is functioning properly and the process is highly dependant upon the user’s experience. Consider this analogy: while anyone with enough money can buy an airplane, learning how to fly one takes a lot of practice. The same is true with helium leak detection—make sure your pilot knows how to fly.Why Is Helium Superior?While many gases are used in leak detection, helium’s qualities provide for superior testing. Having an AMU (Atomic Mass Unit) of only 4, helium is the lightest inert gas. Only hydrogen, with an AMU of 2, is lighter than helium. However, due the hydrogen’s explosive potential it is rarely used. Additional reasons why helium is a superior tracer gas: Only modestly present in the atmosphere (roughly 5 parts per million) Flows through cracks 2.7x faster than air Nontoxic Nondestructive Nonexplosive Inexpensive User Friendly Due to these attributes, and its high sensitivity, helium leak testing has gained broad acceptance in a wide range of leak testing applications. Helium Leak Testing’s two primary testing modes while there are a variety of testing procedures, in general there are:Two primary methods of helium leak testing: Spray Probe Sniffer Probe The choice between these two modes is based on both the size of the system being tested, as well as, the level of sensitivity required.Spray Probe: Provides Maximum SensitivityFor this technique, the leak detector is hooked directly to the system under test and the inside of the system is evacuated. Once an acceptable vacuum is achieved, helium is sprayed discreetly on the outside of the system, with particular attention being paid to any suspect locations. Any leaks in the system, including defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect will allow helium to pass and be readily detected by the machine. The source of any leaks can then be accurately pinpointed and repaired.The spray probe process is used to achieve the highest level of sensitivity. The equipment being used dictates the maximum sensitivity achievable; in Jurva Leak Testing’s case it is 2x10-10 std cc/sec. This technique does require that the system being tested is relatively leak tight prior to testing, as an ample vacuum is required for testing. However, by using special throttling devices a gross test can typically be performed. The gross test should eliminate any major leaks, permitting the use of increased sensitivity.The following are examples of systems that we test using the spray probe technique: A-bar furnaces E-beam systems Laser systems Metal deposition equipment Distillation systems Vacuum systems Sniffer ProbeFor this technique, helium is purged throughout the inside of system being tested. Due to the innate properties of helium it readily migrates throughout the system and in its attempt to escape penetrates any imperfections, including: defective welds (caused by cracks, pin holes, incomplete welds, porosity, etc.), flawed or missing gaskets, leaks due to loose clamps, or any other defect. The system’s exterior is then scanned by using a probe attached to the leak tester. Any leaks will result in an increased level of helium nearest the source and be readily detected. Leak sources can then be pinpointed, providing the opportunity for immediate repair and retest.Unlike the spray probe technique, this process is very flexible and can be adapted to meet the needs of any virtually any system in which helium can be injected. There is no practical size limitation. The sniffer probe technique is not as sensitive as the spray probe process, however, due to the amount of helium present in the air (approximately 5 ppm). The maximum sensitivity achievable under this procedure is approximately 1x10-6 std cc/sec. Nevertheless, this process is vastly superior to other traditional leak testing methods, such as: bubble testing, acoustic emission, liquid penetrant or vacuum box testing.The following list is an example of systems that Jurva Leak Testing has tested using the sniffer probe process: Storage tanks (both above ground and below) Floating roofs Underground pipelines Underground cables Aseptic systems (flash coolers, heat exchangers, fillers, etc.) Any vessel/line or system that can be pressurized Specialized Testing TechniquesIn addition to the two primary testing procedures listed above, there are a number of more specialized techniques that can be utilized. Among these techniques, we routinely employ bagging or hooding and bombing. (content nicely written by Jurva Leak Testing, http://www.jurvaleaktesting.com/HeliumLeakTesting.html)

Agilent Varian HLD & VS Helium Leak Detector PCB Assembly, Ion Source, Low preheat Circuit Board. PN: R2120502 This is the HLD and VS Helium Leak Detector PCB Assembly Ion Source, Low Preheat. Works With: Agilent Varian HLD Leak Detector MODELS: G8610A, G8610B, G8611A, G8611B, G8611C, G8612A, G8612B, G8612C, G8612D and Agilent Varian VS Leak Detector MODELS: PR02, MR15, MD15, MD30+, BR15, BD15, BD30+, PD03.

Agilent Varian HLD & VS Helium Leak Detector PCB Assembly Mother Board. PN: R2101501 This is the Agilent Varian HLD & VS Helium Leak Detector PCB Assembly Mother Board. Works With: Agilent Varian HLD Leak Detector MODELS: G8610A, G8610B, G8611A, G8611B, G8611C, G8612A, G8612B, G8612C, G8612D and Agilent Varian VS Leak Detector MODELS: PR02, MR15, MD15, MD30+, BR15, BD15, BD30+, PD03.

Agilent Varian VS Helium Leak Detector CPU PCB. PN: G8600-65002 This is the Agilent Varian VS Helium Leak Detector CPU PCB. Comes with Cable Assy, PC Module PCB and VS Programmed Compact Flash Card Connected to the PC Module. NOTE: Works only with VS Helium Leak Detectors sold after October 2015, use PC104 CPU PCB. Works With: Agilent Varian VS Leak Detector MODELS: PR02, MR15, MD15, MD30+, BR15, BD15, BD30+, PD03.

Agilent Varian 959, 979 Preamplifier for Helium Leak Detectors Standard Sensitivity This is a standard sensitivity replacement Preamplifier for an Agilent 959 or 979 Helium Leak Detector.

NEW Agilent Varian VS Series Helium Leak Detector Oil Mist Filter Eliminator, PN VSFLDME This is a Varian Agilent Exhaust Mist Filter Eliminator. It captures oil, fog, mist or smoke from the exhuast of the DS Varian Agilent Rotary Vane Pump attached to the Helium Leak Detector. Comes with filter media. Just unscrew the KF25 outlet fitting on the Rotary Vane Pump and screw the KF16 fitting on the outlet, attach 0-Ring and Clamp, attach rubber hose to outlet of oil mist filter to vent outside.

NEW Agilent Varian Tuning Leaks for 1 1/8 in. Compression Port Agilent Varian PN K1608301. The Tuning Leak consists of a ten-segment calibrated needle valve which can be used as an aid to gross leak testing or for gross leak calibration. The Tuning Leak can be used with any Agilent Varian Leak Detector and can also provide an indication of background helium in the testing area.

Agilent Varian LD Compression Port Inlet Adapter Kit NW25, Helium-Leak-Detectors, Helium Leak Detectors. Agilent Varian Part Number: LDCOMPINADKIT The LD Compression Port Inlet Adapter Kit is designed for use testing leak detectors for customers who want to utilize a Compression Port fixture rather than the NW25 Fixture present on the Inlet Port.

Agilent Varian 979, 959, 936, 936SP, 938-41 Portaset Ion Source, Thoriated Thoria Iridium Filaments for Helium Leak Detectors Agilent Varian PN 82850302 This is an Ion Source Thoriated Iridium Filament for the Agilent Varian 979, 959, 936, 936SP, 938-41 Portatest, Helium Leak Detectors. This Thoria long life ion source is for the newer model 979 Leak Detector, but can be used in older models 936 and 936SP, 938-41 Portatest models. For the Older 936 Cabinet Models with enhancement kits, redirect the flexible metal tube away from the spectrometer tube. For 936SP Cabinet Models, if the unit has a spectrometer cooling fan, unplug it. For models without a spectrometer cooling fan, the IRIDIUM/TUNGSTEN switch must be in the IRIDIUM position. For the 938-41 Portatest Model with serial numbers between 62E001-62E171 contact Agilent Varian. For 938-41 Portatest with serial numbers later than 62E171, the IRIDIUM/TUNGSTEN switch must be in the IRIDIUM position. This is the Ion Source Filament ONLY, leak detectors sold separately on this website.

NEW Agilent Varian Throttle Tuning Leak Valve with KF25 fittings. Agilent Varian PN R1947301. The Tuning Leak consists of a ten-segment calibrated needle valve which can be used as an aid to gross leak testing or for gross leak calibration. The Tuning Leak can be used with any Agilent Varian Leak Detector and can also provide an indication of background helium in the testing area. This has KF25 fittings.

Agilent Varian Dry N2 Vent Purge Kit for VS Series Leak Detectors. Agilent Varian PN: VSFLDN2V. This is an Agilent Varian dry nitrogen vent purge accessory kit for the VS series of Leak Detectors. It includes the proper fittings, wrench, and 2 ft. of 4mm ID x 6mm OD PVC Tubing. Fits these Leak Detector Models: VSMR151, VSMR152 VSMD301, VSMD302 VSBR151, VSBR152 VSBD301, VSBD302 VSPD021, VSPD022

OEM Agilent Varian 947, 948, 960 leak detector, Manufacture OEM O-Ring KitAgilent Varian OEM PN L5669801This is a Manufacture OEM Agilent Varian O-Ring Kit for the 947, 948 or 960 VSRV Leak Detectors.

Agilent Varian Power Probe Sniffer Replacement Tips (10pk) for 936, 938, 947, 948, 956 Contra-Flow He Leak Detectors. PN: K9565303 This is a package of 10 replacement tips for Agilent Varian Power Probe Helium Leak Detector Spray Probes. Works with Agilent Varian 936, 938, 947, 948 and 956 Series He Leak Detectors. (Power Probe not included)

Cambridge Mill Products CMP E-Z Elite Z Synthetic Vacuum Pump Oil, 1 Liter Direct Substitute for Agilent Varian Elite Z Helium Leak Detector Oil Part Number: 695409005 CMP ELITE Z is a full synthetic hydrocarbon fluid which is double-distilled through a molecular distillation process. It has very low pour points to eliminate cold start problems and a very high viscosity index providing exceptional resistance to higher temperatures seen in many high rpm rotary vane pumps. Its molecular structures are unique and provide excellent chemical inertness and high temperature stability. CMP E-Z ELITE mechanical pump fluids have a much higher molecular weight than petroleum oils and exhibit greatly reduced back-streaming tendencies. CMP ELITE synthetic fluids are miscible with hydrocarbon oils and do not require any special cleaning procedures before use. CMP ELITE Z Synthetic can be used in all types of rotary vane pumps. CMP Elite Z Oil can also be used for the Agilent Varian Leak Detectors: VSMR151, VSBR151, VSPR021, 959, 948, 936, 979. Typical applications include: Instrumentation, LPCVP, nitride deposition, ion implantation, plasma etching, sputtering and biomedical processes. CAUTION: These products are flammable and should not be used in applications where there is risk of explosion from high oxygen enriched environments.

Agilent Varian 959 O-ring Kit For Cleaning of Vacuum And Spectrometer Tube Helium Leak Detector. PN: L6930301 This seal and gasket kit is designed for the for Agilent Varian 959 Helium Leak Detector Vacuum And Spectrometer Tube. It is needed when cleaning and servicing of the mass spectrometer tube.

Agilent Varian Ground Slit Plate for 959, 959D Agilent Leak Detector, PN- K3088001 This is a replacement Ground Slit Plate, located within the ion source cavity of the leak detector. These plates are commonly cleaned, then re-installed and, when cleaning is no longer possible, simply replaced. This part must replaced using lint-free gloves and clean conditions, in accordance with maintenance instructions of the user manuals.

Agilent Varian 979, 990 DCLDII, Replacement key T009 for Helium Leak Detector PN: 660356136 This is a replacement key, number T009 for Agilent Varian 979 and 990 DCLDII helium leak detectors.