Differential Pressure Tightness Measurement.

The new DELTACHECK leak-tightness measuring systems enable cost-effective and reliable differential pressure measurement through the use of specially developed and standardised modules:

  • Test rack
  • Control equipment and measurement data processing software
  • Measuring instrument

The customer-specific adaptation to the test object remains as the only special design and is manufactured in our in-house design and machining department.

The exclusive use of the following high-quality components significantly increases the availability of the testing machine:

  • Measurement technology: ISM 
  • Pneumatics: Festo
  • Profile building system: Item
  • Control equipment: Siemens / Advantech / NI

This configuration consisting of standard modules and custom test item adaption allows us to deliver fast and at favourable prices.


  • Industry 4.0 ready
  • Parameter input and process visualization via 17 "touch screen
  • Test stand control by fanless industrial PC
  • Measurement data storage
  • Surveillance of all process-relevant parameters
  • Manual or automatic closure of the test stand
  • "Test object in position"-monitoring
  • Gross leak monitoring
  • Exchangeable plates for different test specimens (option)
  • Automatic test object clamping and adapter closure (option)
  • Operator protection by safety light curtain (SICK)
  • Quick-change systems with central coding connector (option)
  • Use of state-of-the-art pneumatic components (FESTO)
  • Short signal paths by placement of the measuring and vacuum components in the substructure of the test stand
  • Lockable double wing doors facilitate service
  • Control cabinet at operator height, rear side
  • Reserve for upgrading 20 %.
  • Controller with 16 inputs and outputs
  • Ethernet, USB, RS232 interfaces as standard

Sensitivity of Detection

Measuring range DELTACHECK up to 1x10E-3 mbar l/s
depending on specimen volume
Measuring range DP300 0,01 ... 20,00 mbar l/s

Control Equipment

Computer Fanless Industrial PC, WIN XP
160 GB 24/7 hard disk drive
I/O 16 in-/outputs
10 analog inputs
Interfaces Ethernet / USB / RS232
Display 17 "IP65 Touchscreen with front USB interface


Compressed air supply Pressure transmitters
Test piece in position / coarse leakage measurement Pressure drop / absolute pressure
Optional Flow measurement


Power supply 230 V 50/60 Hz
Power consumption up to 0.8 KW
Pneumatic Compressed air, dry, clean, oil-free, min. 6 bar


Dimensions approx. 1100 (W) x 1100 (D) x 2100 (H) mm
Weight approx. 200 - 250 kg
DELTACHECK bespoke leak detection systems
DELTACHECK bespoke leak detection systems

DELTACHECK - Application Fields

  • Example I -
    Differential pressure tightness measurement on fuel manifolds
    Max. allowed leak rate: 1 x 10E-2 mbar l/s
    Test pressure: 5 bar
    Cycle time: 25 s

  • Example II -
    Differential pressure tightness measurement on oil suction pipes

    Max. allowed leak rate: 5 x 10E-1 mbar l/s
    Test pressure: 2,5 mbar
    Cycle time: 8 s

  • Example III -
    Differential pressure tightness measurement on oil pressure switches
    Max. allowed leak rate: 1 x 10E-1 mbar l/s
    Test pressure: 8 bar
    Cycle time: 7 s

DELTACHECK Delivery Scope

1 pc. Test stand made of Item AL profile system
1 pc. Differential Pressure Leak Detector DP300
1 pc Control cabinet with process control and data processing hardware, 17" touch screen IP 65
1 pc Customer-specific adaptation of the test object
Delivery time 8 Weeks
Warranty 12 Months

(This document is currently available in German language only. We regret the inconvenience.)

ISM Testing Machines - quantifiably better.

Would you like more information or have any questions about the product?