COSMO Instruments Differential Air Leak Testers and Flow Meters

Technical directory and procurement specifications for Japanese-engineered differential air leak testers, laminar flow testers, and precision digital pressure gauges by COSMO Instruments Co., Ltd.

COSMO LS-R902 Differential Pressure Air Leak Testers

The LS-R902 differential pressure air leak testers deliver automated leak detection for automotive powertrain components. The instruments feature a built-in differential pressure sensor with reading stability down to 0.1 Pa. An integrated pneumatic manifold minimizes downtime.

Series LS-R902, LS-R912 & LS-R902EV
Pressure span -100 kPa to 4.9 MPa
Monolithic sensor & valve manifold
Fieldbus EtherNet/IP & PROFINET

COSMO LS-R700 Modular Compact Air Leak Testers

Modular differential air leak testers of the LS-R700 and LS-R740 series are engineered for multi-channel lines and fixtures. Units incorporate high-speed AD converters and ambient temperature compensation algorithms. The color touch interface streamlines pneumatic test timer adjustment.

Series LS-R700, LS-R740 & LS-1881A
Differential resolution down to 0.1 Pa
Color display with up to 100 test channels
Automated K-check sensitivity tracking

COSMO AF-R221 Automatic Air Flow Testers and Meters

Automated air flow testers of the AF-R221 series and DF-R280 meters quantify flow rate and gas leakage across continuous streams. The equipment utilizes laminar flow elements and thermal mass sensors. They detect micro-blockages and cross-section variations in precision valves and medical tubing.

Series AF-R221, DF-R280 & AL-R302EV
Laminar flow tube & thermal mass sensing
Valve, injector & tubing flow inspection
Automated sensitivity calibration routines

COSMO DP-340 Digital Pressure Gauges and Transducers

Precision digital pressure gauges of the DP-340 series and PT-105 transducers measure gauge pressure and vacuum in pneumatic testing manifolds. Built on inductive and silicon strain elements with minimal thermal zero drift, these instruments provide stable reference tracking and analog outputs.

Series DP-340BA, DP-340B & DM-3700
Pressure transducers PT-105 & PT-161
Span options from micro-bar to 5 MPa
Analog outputs & digital communication

COSMO LDS3000 Helium and Hydrogen Leak Detectors

The LDS3000 helium leak test systems and Sentrac Strix hydrogen sniffers detect microscopic leakage across EV battery modules and sealed assemblies. Utilizing a 180-degree magnetic deflection mass spectrometer, the setup delivers fine sensitivity alongside helium gas recovery modules.

Series LDS3000, LDS3000 AQ & ELT3000
Sentrac Strix hydrogen leak sniffers
180-degree magnetic deflection spectrometer
Helium gas recovery and mixing modules

COSMO Leak Master Standards, Couplers and Super Gel

Reference Leak Master standards of the LM-1C series and QLC pneumatic quick couplers provide daily verification for leak testing equipment. The synthetic polymer compound Cosmo Super Gel ensures airtight sealing across irregular component ports without mechanical distortion.

Leak Master models LM-1C, LM-1AH & LM-S1A
Quick pneumatic couplers QLC, LC & MC
Synthetic Cosmo Super Gel sealing elements
Accredited leak rate tolerance within 10%

Differential Pressure Air Leak Detection Principles and Precision

Japanese manufacturer COSMO Instruments Co., Ltd. pioneered differential air leak testing systems for automotive powertrain components, hydraulic valves, and sealed assemblies.

The operating principle continuously compares pressure decay between the test piece and a sealed reference volume via a sensitive differential pressure sensor. A high measurement resolution down to 0.1 Pa enables rapid detection of minute porosity and weld defects within short test cycles.

Monolithic Pneumatic Manifolds and Dynamic Noise Reduction

The LS-R902 and LS-R700 instrument lines integrate pneumatic pilot valves and the differential transducer directly into a solid aluminum manifold block devoid of external interconnecting hoses.

This robust architecture eliminates internal pneumatic joints and prevents operational breakdowns during continuous line cycling. The Noise Reduction algorithm extracts true differential pressure signals amidst factory floor vibrations and pneumatic supply fluctuations.

Automated K-Check Routine and Equivalent Volume Calibration

Converting raw differential pressure readings into absolute volumetric leak rates in milliliters per minute requires rigorous calibration of the total internal volume.

The automated K-check function runs a calibration sequence utilizing an accredited Leak Master standard to establish exact flow conversion factors. The digital processor tracks sensitivity drift over time, alerting line technicians whenever testing lines experience flow restrictions.

Laminar Capillary Elements in AF-R221 Industrial Flow Testers

The AF-R221 air flow testers and DF-R280 meters inspect flow throughput across fuel injectors, electronic cooling channels, and precision medical tubing under constant air delivery.

By employing precision laminar flow elements, the instrument maintains a linear relationship between pressure differential and volumetric flow rate. Microprocessor gas density tracking guarantees tight test repeatability across automated assembly stations.

High-Stability Digital Pressure Gauges for Pneumatic Systems

Digital pressure gauges of the DP-340 series and PT-105 transducers provide precise pressure verification across factory pneumatic test rigs and fluid distribution panels.

The instruments feature silicon piezoresistive sensing cores with minimal thermal zero drift and high overpressure tolerance. Clear digital readouts and analog outputs enable seamless integration with plant supervisory control architectures.

Mass Spectrometer Helium Leak Testing for EV Battery Packs

For stringent leak tightness inspection of electric vehicle battery enclosures and refrigeration loops, COSMO delivers LDS3000 mass spectrometer systems.

A 180-degree magnetic deflection spectrometer identifies trace helium concentrations inside vacuum test chambers. Optional closed-loop helium recovery skids purify and reclaim test gases, minimizing operating expenditures on high-volume production lines.

COSMO Instruments and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of COSMO Instruments and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.