628 Differential Pressure Decay Leak Tester

Differential pressure decay leak tester offering uncompromising precision and accuracy.

Designed to provide clear and non-subjective results, the Uson 628 is a differential pressure decay leak tester that rivals the performance of more complex and expensive instruments. By offering five different pressure ranges, ranging from vacuum up to an impressive 15 bar, it covers a wide range of applications, from medical check valves to automotive radiators and beyond. With its highly sensitive and budget-friendly design, this tester is your ultimate ally in reducing product deviations and recall issues through the early identification of leaks.

But that’s not all – the Uson 628 is packed with features that truly set it apart from the competition. With the ability to create and save up to 30 test programs, you can easily recall your preferred settings for fast and efficient testing. The electronic regulator option goes even further, allowing you to test at multiple pressures with the pre-fill option as standard.

The 628 tester is capable of running multiple tests, including differential pressure and vacuum decay, ensuring comprehensive and accurate results every time. Equipped with a 24-bit high resolution for precise measurements, as well as industry-proven proprietary sensors and valves, this tester provides reliable operation that you can trust.

Easy to use

Uson’s 628 differential pressure decay leak tester is a compact, reliable, and accurate instrument that is ideal as a budget-friendly benchtop option for a wide range of industries. The 628 leak tester incorporates an intelligently designed multi-language user interface, with the capability to collect and transmit a vast amount of data, for offline trend analysis and a deep level of insight.

The 628 is a highly flexible leak tester, offering users the ability to choose from five pressure ranges – from vacuum up to 225 psi (15 bar) to cover a wide range of applications, making it useful for a wide range of industries and applications. Internal memory allows users to create and save up to 30 test programs, for fast recall of test parameters.

The 628 easily accommodates multiple test pressures

For applications that need to test multiple test pressures, the 628 offers an optional electronic regulator. With the electronic regulator option, the 628 can be programmed to test a part at different test pressures in a sequence. Additionally, the test programs can be linked, serving to further the automation of the test sequence. Another benefit with the electronic regulator is that it adds an increased level of security. It is only accessible through the programming interface and can be locked and safeguarded to prevent unintended changes. This is a significant advantage over a manual regulator, which can be adjusted from the back of the instrument.

The 628 leak tester is easy to use and requires minimal operator training

The 628 leak tester was designed to be easy to use in a busy environment. A backlit user interface makes accessing information easy, while bright uniquely designed lights on the front panel allow for at-a-glance monitoring from across a room. The menu system is intuitively structured to make setup and operation practically effortless.

Reliable performance, with accurate results every time

The 628 leak tester is a surprisingly powerful instrument, packaged in a simple design. Incorporating the differential pressure decay method to provide highly accurate and reliable results, the 628 can run test cycles to display leak rates in a range of pressure units or volumetric units using the leak rate calibration option. The 628 incorporates Uson’s industry-proven proprietary sensor and valves, to deliver the type of results that are expected from more sophisticated instruments.

Access to an extensive amount of information to help you manage your process

The 628 leak tester ensures a high level of control over the instrument. With a convenient USB port, firmware updates, data transfers, and program backups are easy. Program security and data access are controlled by a password, while couple safety valves control the position of the machine in the event of a power failure.

Navigating the Uson 628 is a breeze thanks to its backlit user interface. Accessing specific information and viewing results has never been easier. And with its intelligently designed menu system, setup is quick and hassle-free, even for new users. Plus, for your convenience, the Uson 628 offers factory-programmed language options, including Chinese and Spanish.

Designed to meet the highest standards of quality and performance

With a durable, splash-proof and dust-proof enclosure, the 628 leak tester is designed for quality in manufacturing laboratory environments. It features a reliable, solid-state hard drive for high-speed data transfer, and accommodates single-range 0-20 mbar calibration for accurate results. Plus, the 628 features an advanced, upgrade friendly design that makes service and maintenance easy.

Flow Range:	20 mbar/2000Pa/0.29 psi
Pressure Range:	-950 mbar/-95 kPa/-14 psig 1 bar/100 kPa/15 psig 4 bar/400 kPa/60 psig 10 bar/1000 kPa/150 psig 15 bar/1500 kPa/225 psig

Communications:	RS-232 ports / tester	1
	Host USB 2.0 ports	1

Inputs/Outputs:	Max Decision Sensors / tester	1
	Max Sensors / channel	1
	A/D resolution (bits)	24
	Maximum discrete digital outputs/channel	7
	Discrete digital outputs / channel	8
	Digital I/O Voltage Level	24vdc

Physical Characteristics:	Size (HWD) Inches	5.3″ X 12.6″ X 13.2″
	Weight lbs	22lbs
	Color Display size	4.3″
	Front-panel membrane buttons	7
	Integrated pneumatics	✓
	Test Ports	1
	Calibration Ports	1
	Pendant Style Remote Control	✓

Data:	Accept/ Reject / Total Counts	N/A
	Min/Max Test Result	N/A
	Average Pass/Reject Result	N/A
	Standard Deviation of all test results	N/A
	Range of test results	N/A
	Pressure versus time plot	N/A

User Interface:

Real time clock

Program select via Digital Inputs

Start / Abort via Digital inputs

Software:	Accept/ Reject Step Markers – Pulsed	Embedded Unix Based
	Password protection	✓
	Addressable Programs	30
	Internal Test Result storage (test cycles)	500
	Sensor Calibration	Software zero & span.

Brand

Uson

Industry

Industrial
Medical
Packaging

Channels

Max Channels - 1

Product Type

Leak Tester

Sensor Types

Differential Pressure

Test Methods

Differential Pressure Decay
Differential Vacuum Decay
Exercise/Fluff
Vacuum Decay

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628 Differential Pressure Decay Leak Tester

Qualitek mR Multi-Range Industrial Leak Tester

The standard for fast and dependable leak testing in light to medium-duty industrial applications.

Qualitek mR is the unparalleled standard for lightning-fast and dependable leak testing in light to medium-duty industrial applications. With a perfect fusion of cutting-edge multi-range (mR) leak and flow testing technology and our unmatched expertise, Qualitek mR sets the benchmark for excellence.

One of the standout features of Qualitek mR is its remarkable versatility, allowing you to utilise the same testing platform for a multitude of techniques. Whether it’s pressure decay, differential pressure decay, vacuum decay, mass flow, forced decay, or sealed component testing, this exceptional device has got you covered. By consolidating various testing options into one product, Qualitek mR not only saves valuable time but also simplifies personnel training efforts.

As communication is key, Qualitek mR offers comprehensive communication options that seamlessly integrate with peripherals or automation equipment. With USB, Ethernet, RS 232, digital IO for PLC interface, Modbus, Profibus, DeviceNet, and email alerts, staying connected and in control has never been easier.

For many years, Qualitek has been the proven standard for fast, reliable leak testing in industrial markets. This versatile and affordable product offers high-quality and accurate results for light- to medium-duty industrial leak testing applications.

Designed with an intuitive operating system, Qualitek mR ensures effortless learning and integration. Its computer-style mounting can be conveniently repositioned, providing optimal viewing angles from any direction.

Today’s mR line combines the best features of predecessors into one efficient and easy-to-use tester. Backed by Uson’s world-renowned reputation, Qualitek mR sets a new benchmark of accuracy and dependability in leak testing equipment for multi-range leak and flow testing equipment. Designed to be used on the benchtop or mounted into automated systems, the Qualitek mR is impressively simple to use. The convenient and easy-to-read display lends efficiency and helps prevent errors.

Qualitek mR is a highly configurable system that accepts a full range of tests and transducers. It contains the most current leak testing technology, including a powerful toolbox complete with a full menu of options including:

Pressure profile
Charting
Data analysis
Programs storage
Scroll-and-click control wheel

Whether you’re in the automotive, packaging, or industrial manufacturing industries, Qualitek mR is the ultimate choice for leak testing. From faucets, pumps, valves, shower heads, ink cartridges to castings, this versatile device caters to a wide range of applications, delivering unmatched precision and reliability.

Flow Range:	Up to 100 Liters per minute
Pressure Range:	Up to 225 psig/15 bar differential Up to 500 psig/35 bar gauge

Communications:	RS-232 ports / tester	1
Host USB 2.0 ports	2
	Device USB ports	1
	Profibus	✓
	Modbus serial	✓
	Ethernet IP	✓
	DeviceNet	✓

Inputs/Outputs:	Max Decision Sensors / tester	3
Max Sensors / channel	2
	A/D resolution (bits)	24
	Max Analog Outputs / tester	1
	Max Analog Outputs / channel	1
	Analog Output bits	PWM (~12)
	Maximum 24V DC discrete digital inputs / tester	11
	Valve Control signals / tester	16 (internal)
	Maximum discrete digital outputs/channel	5
	Discrete digital outputs / channel	5
	Digital I/O Expansion option	8 in/16 out (valve drive capable)
	Two-handed start support (software based)	✓
	Digital I/O Voltage Level	24vdc

Local Area Network:	RJ 45 Ethernet ports	1
	Logging to a networked disk	✓
	Emailed alerts	✓

Physical Characteristics:	Size (HWD) Inches	7 x 10.75 x 12
	Weight lbs	24
	Color Display size	8.5″
	Color Display pixels	640 x 480
	Front-panel membrane buttons	5
	NEMA 12	✓
	Integrated pneumatics	✓
	Test Ports	1
	Calibration Ports	1
	Test port style	1/8 NPT Female
	Pendant Style Remote Control	✓

Data:	Accept/ Reject / Total Counts	✓
	Min/Max Test Result	✓
	Average Pass/Reject Result	✓
	Standard Deviation of all test results	✓
	Range of test results	✓
	Pressure versus time plot	✓

User Interface:	Real time clock
	Program select via Digital Inputs
	Start / Abort via Digital inputs
	Bar code input & control
	Auto Comp & Auto Cal
	Temp Comp (Pressure change)
	Regulator – closed loop control
	Configurable Pressure Units: psig, mbar, inH2O, mmH2O, inHg, mmHg, Kpa or Kg/cm2
	Parts Grading
	Auto Run Mode
	Conditional Program Jumps
	Accept/ Reject Step Markers – Continuous with timeout
	Accept/ Reject Step Markers – Pulsed

Software:	Operating System Software	Unix Based
	Run/Program security key	✓
	Addressable Programs	99
	Internal Test Result storage (test cycles)	1,000
	Sequence	Program link. Stop control, Vent control, Delay time option, Step control
	Sensor Calibration	Software zero & span with option of multi-point linearization per analog input.