Use the Sentinel 3520 for your most challenging leak test applications 

When you’re struggling to balance accuracy, cycle time and Gage R for a complex leak test, the Sentinel 3520 is up to the challenge. The Sentinel 3520 can test parts with volumes of less than 1 cc and up to 1,000,000 cc, variable volume parts, and parts requiring temperature and pressure compensation—all while delivering the speed, accuracy and repeatability manufacturers require. 

This leak test instrument also offers advanced configurability to meet your requirements using Sciemetric’s digital process signature technology, accessible at the station using the sigPOD controller.  

Eliminate-Guesswork-Blue

Delivers the utmost accuracy

The highest quality pneumatics, sensors and measurement electronics deliver resolution down to ±0.000,01 psi, flow measurement down to ±0.2% of full scale, and more!

Test-large-parts-blue

Excels at large part leak testing

The Sentinel 3520 delivers balanced accuracy, cycle time, and Gage R that is so difficult to accomplish in large part and large volume leak testing.

 

Simplify-Complex-Measurements-Blue

Provides data insight powered by Sciemetric

Sciemetric unique PSV™ waveform technology offers the most advanced defect detection—and practical insights to improve your test.

Powerful leak test performance, driven by intelligent design and unique features

yellow-diamond

The Sentinel 3520 is designed with manufacturers in mind. It is a highly flexible and powerful leak tester which can be easily configured to meet your requirements, including pressure ranges, flow meter ranges, leak test configurations, and more. See what makes it so unique:

TEST TYPES

  • Pressure/Vacuum Decay - Leak Standard
  • Pressure/Vacuum Decay - ΔP
  • Pressure/Vacuum Decay - ΔP/ΔT
  • Occlusion - Pressure or Vacuum
  • Ramp to Proof – Pressure (Burst Test)
  • Pressure Verify
  • Customizable Pressure / Flow Sequencing
  • Mass Flow (Flow Models)
  • Test Volume Verification (Flow Models)

KEY APPLICATIONS

AUTOMOTIVE & OFF-HIGHWAY 

  • Engine assemblies including blocks, cylinder heads, valves
  • Transmissions including casting, seal integrity, cavity to cavity integrity
  • Drivetrains including gearboxes, axle assemblies
  • Components like HVAC, fuel tank and related components, brake calipers, and more 

ELECTRIFICATION 

  • E-motor leak testing
  • Electrical vehicle battery leak testing including assemblies, packs, enclosures
  • EV system components including inverters and drive housings, electric components, cooling systems

INDUSTRIAL

  • Tanks and large vessels
  • Cylinder and valve assemblies
  • Hydraulic assemblies

MEDICAL

  • Sterile medical device packaging
  • Pressure cuffs/compressible limb sleeves
  • Medical components with very small internal volume including pacemakers, syringes and catheters

CONSUMER GOODS 

  • Home and office consumer goods including printer ink cartridges
  • Consumer electronics including phones, watches, cameras
  • Other consumer goods with very small internal volumes

PERFORMANCE HIGHLIGHTS

  • Pressure measurement and control resolution down to ±0.000,01 psi
  • Flow measurement down to ±0.2 % of full scale
  • High flow fast fill up to 300 SLPM
  • Test parts from 1 cc to 1,000,000 cc in volume (perfect for large volume leak testing)
  • Customizable pressure and flow sequencing
  • Bi-directional flow measurement for the detection of over-pressurized parts or other test anomalies
  • sigPOD controller with PSV™ software uses digital process signatures (waveforms) for advanced data analysis
  • Visualized control charts, histograms and other SPC tools right at the station, using the sigPOD controller screen

KEY DESIGN FEATURES

  • Patented PID controlled electronic regulators for pressure and flow
  • Fully adjustable control loop settings for electronic regulators, valve-operated calibration port for automatic verification
  • Unit under test (UUT) isolate valve allows complete self-test without any external connection changes
  • Dedicated temperature sensors for advanced temperature compensation capability, pass/fail decisions with digital process signatures (waveforms)
  • Air piloted valves to reduce effects of heat in high flow manifold version
  • Latching valves reduce effects of heat in low volume manifold version

Precision control for the most challenging leak tests—including large volume leak testing

The Sentinel 3520 combines advanced engineering with intelligent features to deliver fast, accurate, and reliable results, even in complex, challenging, or high-volume scenarios. Powerful performance driven by the following unique features: 

  • Advanced Performance: Delivers accuracy, cycle time, and Gage R—even in challenging test scenarios, like testing variable volume parts with multiple cavities, and more.
  • Fast Fill, Faster Cycle Times:The Sentinel 3520 uses separate pneumatics from the controller so it can be placed close to the part under test to minimize system volume for ultra fast fill rates, especially for large parts.
  • Enhanced Environmental Control: Greater precision with advanced temperature compensation and atmospheric pressure compensation to adjust for environmental factors that skew leak test results.
  • Extreme Measurement Accuracy: Pressure control resolution down to ±0.000,01 psi. Flexible PSV software captures and visualizes thousands of data points.
  • Advanced, Data-Driven Insight: Data visualized in waveforms gives insight into every millisecond of each test cycle.
  • Vast Volume Range: Test parts from 1 cc to 1 million cc in volume—all with one leak tester!

Proven Solutions. Impressive Results.

The Sentinel 3520 has been delivering advanced leak testing on top manufacturers’ assembly lines across the globe for decades. Explore some examples of how it’s made a measurable difference below.

Decrease-rate-Blue

Reduce Gage R—from 40% to 5% for a more repeatable test

Learn more
Reduce-Cycle-Time-Blue

Achieved 2% gage R&R while improving cycle time

Learn more
Fast-Response-Blue

Improved cycle time to 3x faster—from 12 to 4 seconds

Learn more
Consistent-Quality-Blue

Improve large volume leak test and see payback ROI in 4-6 months

Learn more  

Get the smartest leak tester, capable of tackling your challenging leak test applications

When dealing with challenging leak test scenarios, data allows you to move past guesswork and make informed adjustments to ensure an effective and accurate test. Contact us to see how our smart leak test solutions will improve your leak test, product quality, and efficiency! 

CONTACT US

Turnkey and custom test carts and systems built with Sentinel 3520 

Sciemetric has an offering of standard carts and customized solutions, including custom-built carts and bench designs to fit your testing needs and budget.

Leak-test-stations__1900
Sciemetric_Studio_Leak-Test_1900x1425

Unlock smarter leak testing with Sciemetric’s QualityWorX Suite

Gain full traceability and tap into powerful analytics to optimize tests, spot variations across stations, and troubleshoot issues quickly and confidently—all from one platform.

EXPLORE QUALITYWORX

Presented in partnership with Cincinnati Test Systems

Designed and manufactured by Sciemetric, the Sentinel 3520 applies decades of expertise in process monitoring, data analytics, and customer-driven design—backed by our partners, world-renowned for leak testing, Cincinnati Test Systems. As part of TASI Test and Automation, we work together to deliver the best leak test solutions across the globe. 
LEARN MORE ABOUT TASI TEST AND AUTOMATION