Leak and Flow Test Instrument

 

DESCRIPTION

The SENTINEL I28 is an advanced multi-functional leak and flow test instrument delivering high resolution measurement. This instrument is available in three configurable wall mount models:

• I28 PRESSURE DECAY

• I28 MASS FLOW

• I28 DIFFERENTIAL PRESSURE DACAY

I28 SPECIFICATIONS

 

SENTINEL I28 PRESSURE DECAY FEATURES

Pressure decay leak testing is the measurement of pressure loss over time. The use of absolute pressure transducers increases the accuracy of the test by measuring the pressure relative to a sealed vacuum reference, eliminating barometric pressure change issues.

Pressure Decay Test Types

• Pressure/ Vacuum Decay- Leak Standard

• Pressure/ Vacuum Decay- ΔP

• Pressure/ Vacuum Decay- ΔP/ΔT

• Occlusion- Pressure or Vacuum

• Ramp to Proof - Pressure

• Pressure Verify

Measurement Resolution

•  Test Pressure/ Pressure Loss

    Displayed Resolution:

         Range is selectable X - XXXXXX displayed units during pre-fill, stabilize, test, and exhaust

     Transducer Options:

           

• Leak Rate

  Displayed Resolution:

      Range is selectable X - X.XXXXX displayed

  Instrument Resolution:    0.0005 scc/min

Leak Standard

• Internal Leak Standard located on the valve manifold.

Pressure Regulators

• Instrument maximum    2

• Manual regulator options

 

 

• Electronic regulator options:

 

 

 

Quik Test Function

• Monitors the instantaneous in-test result and ends the testing process early when  it is obvious that a reject or accept result is imminent.

• Reduces test time

• Analyzes test results in real time

Patented Auto Test Setup

•  Automated optimization of test program based on maxium user allowable cycle time

• Simpifies instrument test programming and setup

Pressure Decay Test Circuit

SENTINEL I28 MASS FLOW FEATURES

Flow meter measures the amount of air required to maintain test pressure over time.

Any flow indicates a leak.

Mass Flow Test Types

• Mass Flow

• Mass Flow - Leak Standard

Measurement Resolution

 • Test Pressure 

     Displayed Resolution:

           Range is selectable X - X.XXXXXX displayed units during pre-fill, fill, stabilize, test, and exhaust

      Transducer Options:

  • Flow       

    Transducer Options:

         

 • Leak Rate

   Displayed Resolution:

      Range is selectable X - XXXXX displayed units

   Instrument Resolution:     0.0005 scc/min

Leak Standard

• Internal Leak Standard located on the valve manifold. 

Pressure Regulator

• Instrument maximum  1

• Manual Regulator Options

   0.2 to 2.0 psig

   1.0 to 30.0 psig

    2.0 to 100.0 psig

  Other ranges available (consult factory)

Mass Flow Leak Test Circuit

SENTINEL I28 DIFFERENTIAL PRESSURE FEATURES

Differential Pressure Decay leak testing is the measurement of pressure loss over time by comparing the pressure difference between a reference volume and a test part volume.

Differential Pressure Decay Test Types

• DP Pressure/ Vacuum Decay - Leak Standard

• DP Pressure/ Vacuum Decay - ΔP

• DP Pressure/ Vacuum Decay - Leak Rate

• Occulusion - Pressure or Vacuum

Measurement Resolution

• Test Pressure

Displayed Resolution:

     Range is selectable X - XXXXXX displayed units during pre-fill, fill, stabilize, test, and exhaust

Transducer Options

     

• Differential Pressure

Displayed Resolution:

    Range is selectable X - XXXXXX displayed units during test.

Instrument Resolution 0.000001 psig (0.007 Pa)

• Leak Rate

Displayed Resolution:

     Range is selectable X - X.XXXXXX displayed units during test and as a DP pressure loss.

Instrument Resolution:  0.00005 scc/min

Pressure Regulator

• Instrument maximum   2

• Manual regulator options

  0.2 to 2.5 psiv (0.5-5 inHG)

  0.5 to -12.7 psiv (1-26 inHG)

  2.5 to -14.5 psiv (5-29 inHG)

  0.2 to 2.0 psig

  1.0 to 30.0 psig

  2.0 to 100.0 psig

  3.0 to 200.0 psig

• Electronic regulator options:

  0.5 to 14.5 psiv (1-29.0 inHg)

  0.5 to 2 psiv (0.1- 4 in HG)

  0.2 to 2.0 psig

  1.0 to 30.0 psig

  2.0 to 100.0 psig

  3. to 200.0 psig

Leak Standard Options

• Internal Leak Standard located on the valve manifold.

• External Leak Standard located on the bottom of the unit wuth quick-disconnect port

• Pneumatics configured with no leak standard port.

SENTINEL I28 FEATURES

99 Test Programs

Application Flexibility including individual user programmed:

• Program Selection and Flexibility

• Pressure, flow, and vacuum test types

• Timers

• Pressure limits

• Reject limits

• Calibration parameters

• Units of measurement

• Digital I/O

• Tooling control  

Patented Auto Test Setup

• Automated optimization of test program based on maximum user allowable cycle time

• Significantly simplifies instrument test programming and setup

Data Management & Storage:

• 30,000 tests stored in on-board memory

• Infinite expandable through USB port

• Statistic data tracking for static trending capability

           History length

           Accept %

           Reject %

           Accept Average

           Reject Average

           Accept Std Deviation

           Sample Size (since last reset)

• Resettable production counters:

           Accept

           Reject

           Malfunction

• Test result log viewable on display

Parent Program Linking

• A test type that allows the results of individual test to be grouped together and reported a global or "parent test" result.

• Allow linking of individual test programs to test in sequence for overall controll of tooling, cycle inputs, and program result outputs for the test sequence. 

Environmental Drift Correction

• Maintains calibration accuracy by monitoring and automatically making continuous small adjustment for changes in temperature and environmental conditions.

Self-Test Functions:

• Internal leak detection process

• Program calibration verification (when a leak standard is used)

Automatic Calibration

• An easy to perform routine that calibrates the instrument to a "master part"

• Batch calibration to average over multiple parts, if required. 

• Permits manual edits of calibration data.

Test Pressure Compensation

• Compares programmed test pressure to actual test pressure and correlates a comparative measurement for the leak test to maintain accuracy.

High-speed 32-bit Processor & 24-Bit A/D Converter

• Exceptionally fast, high resolution test processing 

• Stable yet extremely responsive pressure/flow measurements

Unit of Measure

• Pressure: Pressure: ATM, Bar, cmHg, inHg, kPa, Mpa, mBar, mmHg, Pa, Torr, psia, psig, psiv, mmWC, iWC, cmWC, ksc

• Flow: sccm, sccs, scch, slpm, slps, slph, scfs, scfh

• Time: msec, sec, min

• All of the above selected globally or per test program

Test Ports

• 1 concurrent test port, standard

• 2,3, and 4 test ports available for sequential or zone specific testing (consult factory)

• 1/4" FNPT test port

• Metric and BSPT

• Other connection sizes available (consult factory)

Vacuum Source Generation

• 2- stage internal venturi vacuum generator

• External electronic vacuum pump available

24 Volts Digital Inputs/ Outputs

• 12 User configurable inputs

• 12 User configurable outputs

• Tooling control for up to five tooling motions with feedback, part marking, and part presence detection

Absolute Pressure Transducer

• Eliminates test variations from barometric pressure changes 

• Uncertainty 0.05% full scale (all ranges)

Pressure Range

• Standard from vacuum to 500.0 psig 

• Option - above 500 psig

Standard Mass Flow Ranges

• Standard ranges from 0.5 to 3,000 sccm 

• Above 3,000 sccm available

• Uncertainty 0.5% full scale (standard ranges)

Transducer Verification/Recertification

• Easy pressure or flow transducers 

• 6-point standard pressure calibration

• 2-point standard flow calibration

Available Pneumatic Manifolds-Optimization

• Standard flow 

• Low volume

• High flow

Test Ports

• Choice of: 1/4" FNPT or 3/8" FNPT

• Other sizes available

Pressure Control

• Standard high precision manual regulators 

• Two standard regulators for mass flow

• Select up to two precision electronic regulators for automatic pressure changes unique to test part or test sequence

• Six point regulator Calibration

• Optional internal vacuum generator for vacuum applications

Units of Measure

• All standard industrial units of measure are easily selectable per part program

Self-Test Functions

• Internal leak detection process

• Program calibration verification

Leak Standards

• Internal Leak Standard on the valve manifold for pressure decay with orifice configurations

RS232 Communication Ports

• 2-Way Telnet communication

• Test result data transmission with definable fields

• Pressure streaming for curve storage

• Email of reports, test data ,and alerts

• Barcode unique part identification

Ethernet Port

• 2-Way Telnet communication w/Email of reports, test data ,and alerts

• EtherNet/IP™ Option 26 Inputs/25 Outputs

• Test result data transmission with definable fields

• Test Program Selection

USB Port

• Backup/Restore

• Cloning

• Report storage

• Test result data storage & result synchronization

Automatic Calibration

• Easy to perform

• Permits manual edits if averaging multiple parts is required

• Calibrates to master part

Environmental Drift Correction

• Automatically maintains calibration accuracy to compensate for changes in environmental conditions including temperature

Quik Test Function

• Shortens test cycle when it is obvious and imminent the monitored pressure curve will result in a reject or accept

• Analyzes test results in real time

• Provides projected final test results

24 Volt Digital Inputs/Outputs

• 12 User configurable inputs

• 12 User configurable outputs

• Tooling control – up to five tooling motions with feedback - eliminates the need for a PLC in some cases

 

FEATURES - CONTINUED

RS232 Communication Ports

• 2-Way communication

• Test result data transmission with definable fields

• Pressure streaming for waveform analysis

• Generated reports with test data and configuration

• Barcode unique part identification

Ethernet Port

• 2-Way Telnet communication

• Email of report, test data, and alerts

• EtherNet/IP Option, an additional 26 inputs/25 Outputs

• Test result data transmission with definable fields

• Test Program Selection

External USB Port

• Provides additional program storage capacity and synchronized test result data storage

• Backup/ Restore of instrument functions

• Report storage

• Test result data storage and automated result synchronization

Compact Enclosure Design

Communication connections located at the side, test ports and pressure regulators on the bottom of the unit

Full-Color LCD Display

• 480 x 272 pixels

• User-friendly icon-based menus

• Menu operating modes: Basis, Advanced, Admin

• Graphing of Pressure or Flow vs. Time with plot postion and zoom capability

• Displays active/ inactive status of digital inputs & outputs

Selectable Menu Languages

• Language neutral operator interface

• English, Spanish, Chinese, Korean, Portuguese, and German language options

Key or Password Security

• Select menu items to secure or unsecure

Data management & Storage

• More than 5,000 tests stored on internal memory

• Infinite - Expandable Storage Via USB

• Statistic Data Tracking

• Tracks Percent of Accept and Rejects

• Provides Average Accept and Reject

• Standard Deviation on Accepts

• Allows definable Sample Size

• Resettable counters:

• Test Results Including Malfunction

• Data Viewable on Display

3-Color Light-Bar Indicator

• Unique panel mounted light indicators provides clear feedback of each test

• Eliminates stack lights

• White: In Test

• Green: Accept

• Red: Reject

• Adjustable brightness

• Adjustable lighting duration

Compact Enclosure Design

• Dimensions: 9.25" high x 12" wide x 8.75" deep