Our Resources Express Years of Experience to Help Support You Test Needs

Application Bulletins

Cincinnati Test Systems (CTS) has been developing testing solutions for our customers for over 30 years. From Clothes Dryers to Clutch Assemblies to Coronary Catheters, odds are that we have developed solutions to test the same parts you are producing or something very similar.

Just browse our extensive library of documented applications and if you don’t find exactly what you our looking for, simply contact us to speak to one of our engineers about your application and we’ll start on developing a creative solution specifically suited to your unique requirements.

Quick Links:

Service Bulletins
Application Bulletins

Service Bulletins


SB014
Instrument Lockup due to Improper Inductive Load Suppression.
This bulletin provides an overview of a particular common cause of instrument lockup.

SB013
Backup/Restoring Programs features of the Blackbelt and I28 
This bulletin describes the Restoring Programs and System Files features. 

SB012
Communication Lookup Table
The following lists provide communications data codes that will aid you in interpreting test data from Sentinel instruments.

SB011
I28 Communications Interface
The setup and operation of the Sentinel I28 communication options are explained in this bulletin.

SB005
Generating Data Reports from Blackbelt & I-28

Learn how to generate measured data reports from your I-28 and Sentinel Blackbelt leak test instruments.

SB004
Remote Instrument Control of the Blackbelt & I-28

A broad overview is provided her to show how you can remotely control the Blackbelt and I-28 leak test instruments.

SB003
Pressure Adjustment for Mass Flow Testing

Ensure that the pressure is set correctly in your mass flow testing instruments with this service bulletin.

SB002
Pressure Transducer Verification and Calibration for Sentinel I-28 and Blackbelt

Learn the purpose of verifying and calibrating the pressure transducer in leak testing instruments like the Sentinel I-28 and Blackbelt

SB001
Mass Flow Calibration and Verification in the Sentinel I-28 and Blackbelt Devices

Discover the purpose of calibration and verification for a mass flow test in leak testing instruments like the Sentinel I-28 and Blackbelt.

Application Bulletins


AB171
Sentinel I28 and Blackbelt Mass Flow Calibration and Verification

Synopsis of the purpose of a calibration and verification for a mass flow test, with instructions on how to conduct a calibration and verification on the Sentinal I28 and Blackbelt leak testing instruments.

AB170
SENTINEL I-24 I/O BOARD LAYOUT

The AC and DC I/O boards used in the Sentinel I-24 were redesigned, with the new design boards phasing in to replace the earlier design boards beginning in late 2008. Below are the two design layouts of the AC and DC I/O boards.

AB169
BLACKBELT COMMUNICATIONS INTERFACE

AB168
DOWNLOADED REPORTS FROM THE SENTINEL BLACKBELT

The following reports may be downloaded from the Sentinel BLACKBELT instrument to a PLC or computer using the RS-232 or TCP/IP communications ports.

AB167
BLACKBELT PRINCIPALS OF OPERATION
The basic principle of operation of a pressure decay leak test instrument is to fill the test part to a specified target test pressure, isolate the test part from the source air and allow the pressure to stabilize, and then measure the pressure loss due to a leak over a defined time.Blackbelt Principals of operation

AB166
ESTABLISHING TEST PARAMETERS for I-24

AB165
I-24 DOWNLOADED REPORTS
Reports may be downloaded from the Sentinel I24 instrument to a USB flash storage or to a PLC or computer using the RS-232 or TCP/IP communications ports.

AB164
I-24 COMMUNICATIONS INTERFACE
The Sentinel I24 communicates via RS232 and TCP/IP and provides information storage on USB flash drive.

AB163
PNEUMATIC TEST TYPE MANIFOLDS FOR THE I-24
Descriptions of the various manifolds and test type configurations available with the Sentinel I-24.

AB162
DIRECT MASS FLOW VS. DIFFERENTIAL MASS FLOW TESTS
Testing parts for a leak using mass flow technology requires a sensitive flow meter capable of sensing very small changes in flow rate.

AB161
OCCLUSION (BACK PRESSURE) TESTS
The Sentinel I24 instrument offers a test type option to check for blockage in parts.

AB159
PART OR TEST PROGRAM LINKING FOR THE I-24
The Sentinel I24 can sequence through two or more tests using one of three different methods.

AB158C
Testing Sealed Parts: Fixed Volume Fill Testing - I28
Sealed parts with no charge ports are tested differently then most parts.

AB158B
Testing Sealed Parts: Fixed Volume Fill Testing - I21 & I24
Sealed parts with no charge ports are tested differently then most parts.

AB157
Sentinel I24 QUICK START
Sentinel I24 Installation Information QUICK START

AB156
Formatting USB and Downloading Sentinel I24 Firmware
Formatting the USB flash drive to FAT32 and Downloading the Sentinel I24 Firmware

AB155
Sentinel I24 Digital Input and Output Configuration
Interface configuration for input and output on the Sentinel I24 instrument.

AB153
Sentinel M24 120 to 24 Volt IO
Sentinel M24 Wiring for 24 Volt DC Inputs and Outputs With 120 or 230 VAC Supply Power

AB148
Pressure and Leak Rate Accuracy
Pressure and Leak Rate Accuracy
Sentinel I24 and M24
Pressure Decay Instruments

AB147
Gage vs. Differential Pressure Decay Instruments
Gage (or absolute) and differential pressure decay methods discussed.

AB146
Falcon® Applications Fuel Handling Components
Fuel Rail Testing with Falcon®

AB145
Changing the Calibrated Leak Standard

AB144
Falcon® Applications: Head Lights & Tail Lights
Automotive Headlights and Taillights Tested with Falcon System

AB143
AB143 Derivation of Pressure Loss to Leak Rate formula from the Ideal Gas Law
Derivation of Pressure Loss to Leak Rate formula from the Ideal Gas Law

AB142
Equivalent Leak Standards

AB141
Leak Rate Units : sccm, ccm, accm

AB140
Communication Setup & Execution Sentinel M24 Instrument

AB139
Sentinel M24 Installation Information

AB138 External Exhaust Valve
For Sentinel C-20, B-21, I-21 and F-21 Instruments

AB137
Calibrated Leak Orifices For Sentinel Instruments
Specifying Orifice Values for Sentinel C-20, B-21 or I-21 Instruments

AB136
Sentinel Instruments
300 psi high pressure option.

AB134
Power Steering Components
Pressure decay leak testing applications: Production testing of automotive steering components.

AB133
Sentinel Printer
Optional printer for Sentinel B-21, I-21, C-20, and F-21 instruments

AB132
Sentinel C-20 Plus
Features of the Sentinel C-20 Plus Instrument.

AB131
Brake Components
Pressure decay leak testing applications: Production testing of automotive brake components.

AB130
Sentinel C-20-Cyclone High speed part presence or integrity testing
Description of the features of the Sentinel C-20-Cyclone that provide high speed testing capability.

AB129
Coil saver board for external valves
Picture and wiring diagram for coil saver board.

AB128
Instrument Resolution
Shows how to determine instrument resolution requirements for a pressure decay leak test.

AB127
F-21 flow sensor calibration procedure using F-21 Uploader program
F-21 flow sensor calibration procedure using F-21 Uploader program. Procedure for uploading calibration data for new mass sensors.

AB126
Preventive Maintenance Service Contracts
Preventive maintenance service contracts for pressure decay, mass flow and helium mass spectrometer systems.

AB125
I-21, B-21, & F-21 pressure transducer span adjustment procedure
How to adjust the span of the Sentinel B-21/I-21/F-21 instruments to match a certified pressure gage.

AB124
MD Instrument/Stand to test for liquid filled containers
Production or audit packaging testing of soft contact lens detecting liquid leaks.

AB123
Mass Spec Testing of fuel systems and gas tanks
Production testing of automotive fuel components to meet new emission standards.

AB122
C-20 Quik Test function explained
New Quik Test feature in Sentinel C-20 that reduces the test timer for obvious accept and reject parts resulting in faster test cycles for most parts.

AB121
Automatic calibration procedure (AUTOCAL) for I-21, B-21, and C-20

AB120
How to Establish an Acceptable Leak Rate Criteria for Automated Testing with SENTINEL Instruments

AB119
SENTINEL B-21 and I-21 Installation Information
Sentinel B-21 and I-21 installation instructions including mounting, electrical connections, pneumatic connections

AB117
Using the MiniSentinel Instrument with a DataMyte
Interfacing the Sentinel B-21/I-21/F-21 with DataMyte.

AB116
Using the MiniSentinel Instrument with a Gage Talker
Interfacing the Sentinel B-21/I-21/F-21 with GageTalker.

AB115
Calibration Methods for Multiple Instrument Test Systems
Calibration considerations for multiple instruments that are testing the same part.

AB114
Configuring MiniSentinel Instruments for High Flow Applications
Considerations for applying a Sentinel B-21 or I-21 pressure decay instrument to a high flow test.

AB113
Invoking the Security on a MiniSentinel Instrument
Description of how to initiate the security options available in the sentinel B-21/I-21/F-21 instruments.

AB112
Using Visual Basic to Communicate with a MiniSentinel Instrument
Description of software considerations to write a Visual Basic program to communicate with the Sentinel B-21/I-21/F-21 instruments. Reference AB105 for additional information.

AB109
Using Solid State Sensors for Inputs
Application considerations to follow when using solid state sensors and other devices as inputs to the Sentinel B-21/I-21/F-21 instruments.

AB108
Interfacing to MiniSentinel Valve Outputs
Application considerations when using outputs designated for the test valves for other purposes.

AB106
Using a Non-Standard Printer with the MiniSentinel
Description of hardware and communication settings to download test results to a printer.

AB105
Sentinel I-21 Serial Communications
Description of the communication hardware and software to initiate two way communication with a Sentinel B-21 or I-21 instruments.

AB104
Continuous Logging of Test Results to a Computer
Description of the communication settings, data formats, and wiring to download test results and calibration information to a printer or computer from the Sentinel B-21, I-21, or F-21 instruments.

AB103
Optimizing Leak Test Performance
Step-by-step procedure to optimize the test performance of the Sentinel B-21 and I-21. Information can applied for optimizing Sentinel C-20 performance as well.

AB102
Connection Power to the MiniSentinel Instrument
Correction for 110 volt wiring on early Sentinel B-21 and I-21 instrument models (prior to 1995).

AB101
Using a MiniSentinel in a PLC Controlled Machine
Typical wiring diagrams and program listing for a Sentinel I-21 controlled by an Allen Bradley SLC500 PLC.