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Leak Test Accessary

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Leak Test Accessary

Helium Leak Master

Product Features: ATS Corporation offers many types of leak standards (masters) for helium gas and other traceable gases. This standard is used for calibration and verification of leak testing equipment.

Product Information

Teflon Permeation Model (TP)
The TP model calibrated helium leak standard calibrates vacuum systems and helium leak detectors that test under vacuum. It works well in an industrial environment and is the best choice for applications where the calibrated leak standard will be exposed to contaminates, such as on a vacuum chamber application. We use the finest grade of FEP available to manufacture our FEP leak elements. The leak elements have been tested at temperatures ranging from 10°C to 40°C yielding a temperature coefficient of approximately 2.5%/°C with no anomalous behavior.	Features: •Unbreakable FEP permeation type leak element •All welded stainless-steel construction •Complete with a shut off valve •Not susceptible to plug This model is available with various sizes of DOT rated gas reservoirs. The reservoir size is usually dictated by the leak rate to insure an acceptable yearly depletion rate.
Teflon Permeation "Sniffer" Model (TPS)
The TPS model calibrated helium leak standard works equally well calibrating helium leak detectors that test under vacuum, and with helium leak detectors that sample from atmosphere utilizing a sniffer probe. This is enabled by the design, which features both an integral KF25 (NW25) vacuum fitting and a pin-point helium source that accepts and aligns most manufacturers sniffer probes with virtually no dead volume where helium can accumulate and cause inconsistent readings. Calibrated helium leak standards with shut-off valves and should not be used to calibrate a “Sniffer Type” leak detector. The FEP permeation type leak element is not driven by differential pressure but helium partial pressure flows helium at virtually the same rate flowing into a vacuum or flowing into normal atmospheric conditions.	Features: • Three-point calibration with attached graph (Press. vs. leak rate) • Unbreakable FEP permeation type leak element • All welded stainless-steel construction • Not susceptible to plugging This model is available with various sizes of DOT rated gas reservoirs; the reservoir size is usually dictated by the leak rate to insure an acceptable yearly depletion rate.
Crimped Capillary Model(CP, CPH)
The CPH model calibrated leak standard is available for several different gas types and mixes. It was developed to be compatible with ultra-high vacuum systems and other critical applications where out gassing and background signals need to be kept to a minimum. The CP model calibrated leak standard, though typically used for helium, is also available for several different gas types and mixes. The difference is the shut-off valve on the CP model has a FEP valve packing that seals on the valve stem, in the place of the all-metal welded bellows model used on the CPH model. The CP model is an economical option that works well for most applications that utilize o-ring type vacuum fittings.	Features: • Unbreakable stainless steel crimped capillary type leak element •All welded stainless-steel construction •All metal vacuum fittings, VCR or Con-flat (Del-Seal), others available •Very low temperature coefficient of 0.2%/°C •Can be baked to 150°C, 250°C with optional all metal fill valve Both models are available with various sizes of DOT rated gas reservoirs. The reservoir size is usually dictated by the leak rate to insure an acceptable yearly depletion rate.
Open Style Crimped Capillary Model(CPO)
The CPO model calibrated leak standard is an open style calibrated leak with no gas reservoir—the customer supplies gas from a regulated gas supply. It is available for several different gas types and gas mixes and with all the standard “Orifice” leak holder assemblies. The CPO model is also offered with fittings suitable for high pressure or ultra high vacuum applications. The CPO model is available in leak rates ranging from 10-7 to 10-1 atm-cc/s, with other inlet and outlet fittings available upon request.	Features: • Unbreakable stainless steel crimped capillary type leak element •Stainless steel construction •Very low temperature coefficient of 0.2%/°C •Available with all metal vacuum fittings, VCR or Con-flat (Del-Seal), others available Can be baked to 400°C with appropriate fittings.
Capillary "Sniffer" Model(CPS)
Designed to accurately calibrate sniffer-type leak detectors, the CPS model calibrated leak standard is available for several different gas types and mixes. This type of leak detector samples from atmospheric conditions via a Sniffer Probe Assembly. Calibrated leak standards with shut-off valves should not be used to calibrate a Sniffer Type leak detector. It is available in leak rates ranging from 10-5 to 10-2 atm-cc/s, with other rates available upon request.	Features: • Pin-point gas source that introduces tracer gas without dead volumes where gases can accumulate and cause inaccurate, inconsistent readings on a leak detector • Accepts a variety of sniffer probes from various manufactures • Unbreakable stainless steel crimped capillary type leak element • All welded stainless steel construction • Very low temperature coefficient of 0.2%/°C This model is available with various sizes of DOT rated gas reservoirs. The reservoir size is usually dictated by the leak rate to ensure an acceptable yearly depletion rate.
Variable Rate Crimped Capillary Model (CPV)
Developed to calibrate “sniffer” type leak detectors, the CPV model calibrated leak standard is available for several different gas types and mixes. It is often used to verify the concentration of a tracer gas in a mix, and to calibrate hydrogen leak detectors. The CPV model features a pin-point gas source that accepts and aligns most manufacturers’ sniffer probes with virtually no dead volume where tracer gases can accumulate and cause inconsistent readings. Calibrated helium leak standards with shut-off valves and should not be used to calibrate a “Sniffer Type” leak detector	Features: • Three-point calibration with attached graph (press. vs. leak rate) •Pin-point gas source that works well with many sniffer probes •Unbreakable stainless steel crimped capillary-type leak element •Very low temperature coefficient, 0.2%/°C •Gas may be vented prior to shipping •Available with a Sensistor Hydrogen Leak Detector sniffer probe interface. •Refilling kit/pressure regulator is available to facilitate safe and easy refilling This model is available in leak rates ranging from 10-5 to 10-2 atm-cc/s, with other rates available upon request.
Variable Rate Teflon Permeation Model (TPV)
The TPV model calibrated helium leak standard works equally well calibrating helium leak detectors that test under vacuum, and helium leak detectors that sample from atmosphere utilizing a sniffer probe This is enabled by the design, which features both an integral KF25 (NW25) vacuum fitting and a pin-point helium source that accepts and aligns most manufacturers sniffer probes with virtually no dead volume where helium can accumulate and cause inconsistent readings. Calibrated helium leak standards with shut-off valves are designed to be used with hard vacuum systems and should not be used to calibrate a "Sniffer Type" leak detector. The FEP type leak element is not driven by differential pressure but helium partial pressure flows helium at virtually the same rate flowing into a vacuum or flowing.	Features: • Three-point calibration with attached graph (press. vs. leak rate) • Unbreakable FEP permeation type leak element • Not susceptible to plugging • The helium may be vented with the TPV model prior to shipping. • Refilling kit/pressure regulator is available to facilitate safe and easy refilling