DESCRIPTION

The compact wall mount Sentinel C20 World Edition instrument is the industry's most cost effective pressure decay leak test instrument. Designed with the same 32 bit processor and 24 bit A/D technology as all Sentinel instruments, the C20 is known for its accuracy, speed, and repeatability.

Pressure Decay Test Types

• Pressure/ Vacuum decay -  leak standard

• Pressure/ Vacuum decay - △P

• Pressure/ Vacuum decay - △P/△T

C20 SPECIFICATIONS

C20 Pressure Decay Feature

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.

Measurement Resolution

• Test Pressure / Pressure Loss

  Displayed Resolution:

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

  Transducer Options:

    Range         Measurement         Resolution

   0-20 psia     -14.7 to 5 psig         0.00001 psig

   0-45 psia     -14.7 to 30 psig        0.00001 psig

   0-115 psia    -14.7 to 100 psig      0.00002 psig

• 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 1

• Manual regulator options

  0 to 30 psig

  0 to 100 psig

  Vacuum

Quik Test Function

• Monitors the instantaneous in-test results 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 

                    Pressure Decay Test Circuit

4 Test Programs

• Program selection and flexibility

• Pressure and vacuum test types

• Timers

• Pressure limits

• Reject limits

• Calibration parameters

• Units of measurement

• Digital I/O

• Seal control

Data Management & Storage:

• 5,000 tests stored in on-board memory

• 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

• USB for system backup, updates, and restore

Environmental Drift Correction

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

Self-Test Functions:

• Internal leak detection process

• Program calibration verification (with 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 and 24-Bit A/D Converter

• Exceptionally fast, high resolution test processing

• Stable yet extremely responsive pressure/flow measurements

Units of Measure

• 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, scfm, scfs, scfh

• Time: msec, sec, min

• All of the above selected globally or per test program 

Test Ports

• 1 concurrent test port, standard

• 1/4” Colder fitting for test line connection

• Other connection sizes available (consult factory) 

24 Volts Digital Inputs/Outputs

• 6 User configurable inputs

• 3 User configurable outputs

• One programmable digital output to detect: Malfunction, In-Cycle, Exhaust, and Seal Extend options

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

Compact Enclosure Design

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

• Nema 12 industrial enclosure, die cast aluminum

Full-Color LCD Display

• 480 x 136 pixels

• User-friendly icon-based menus

• Menu operating modes: Basic , Advanced, Admin

• Displays active/inactive status of digital inputs & outputs

Selectable Menu Languages

• Language neutral operator interface

• English, Chinese, Korean, and Spanish language options

Test Result Lights

• For In-test, Accept, and Reject status results

• Eliminates stack lights

Password Security

• Select menu items to secure or unsecure

Help Menus

• On-screen popup window description of parameters

(activated by single shortcut key)

• Minimizes need to have the equipment manual present

when programming the instrument