Remote differential entry-level leak tester


High speed for small volumes.
T6961 was designed for ultra fast testing of small parts (pneumatic valves, pressure switches, micro-valves in plastic for medical use, needles, catheters, biomedical components etc.).
This characteristics makes it suitable for use on high production automatic machines, allow assembly of the pneumatic unit behind the part being tested, for maximum reduction of the parasite volume. The differential measurement technology also allows detection of extremely low leaks (example medicinal valves: 10 cc/h at 2 bar in 0.1 s. of testing).

Test time of a few tenths of a second Remote pneumatic unit Ideal for small pieces (maximum 20cc)

All the connections you need.
The new T6961 equipment includes ports for the USB slave, RS232 and RS485. Assembly may also include an optional Ethernet port and a 26-pole connector with 4 inputs and 8 outputs, which are completely programmable, for interfacing with the external valves, safety barriers, switches, etc...
The front panel has a master USB port for connection to a USB key to save the tests conducted, backup/restore parameters and upgrade tool firmware.
The connection to thermal printers, barcode/data-matrix readers and markers takes place automatically using an internal menu.
Usb key High power outputs RS232, RS485, Can

Always better measurements.

With the external pneumatic module it will be possible to significantly reduce the volume under test, placing the pneumatic unit close to the part to be tested and therefore guaranteeing a cycle of tests with extremely reduced times. However, it is also available in a "stand alone" version with internal pneumatics. Thanks to the small dimensions of the instrument, the construction of multipoint counters is simplified. For a volume of 3 cc, it will only take 0.1 seconds to perform a tight and repeatable leak test, detecting a loss of 10 cc/h at 2 bar. It can be used in all those sectors where there are small parts with reduced cycle times (valves for tires, pressure switches, micro-valves in medical plastic, needles, catheters, butterfly needles, biomedical components, etc.). The instrument is available in scales from 0.5 to 10 bar. Thanks to the new software and hardware features, the T6961 boasts a resolution of up to 1 Pa.

Differential Technology Window Centering Technology Resolution of 1 Pa up to 10 bar

Remote pneumatics.
T6961 avails of an external pneumatic unit with built-in micro-valves and differential pressure transducer, for assembly as close as possible to the part to test. It is entirely managed directly from the central unit with the dimensions and interface identical to the T6990.
Ideal for volumes up to 20cc Remote external unit Differential technology

Innovative design.
What appears to be a simple design exercise, in fact hides an in-depth study to make use and understanding of the tool as simple as possible.
The front panel is made of a single sheet of tempered glass and aluminium, which makes it extremely easy to clean, making the T6961 suitable for use in the laboratory and on the production line.
The extensive internal menus are easy to understand and the graphic interface was designed to only display important information.
Everything is exactly where it should be.
User-friendly interface Easy to clean 360° use


Model 0-0,2 bar 0-0,5 bar 0-1 bar 0-2 bar 0-3 bar 0-6 bar 0-10 bar
Accuracy Dp 1% RDG+3DGT 1% RDG+3DGT 1% RDG+3DGT 1% RDG+3DGT 1% RDG+3DGT 1% RDG+3DGT 1% RDG+3DGT
Range of measurements Dp 0-65 mbar 0-65 mbar 0-65 mbar 0-65 mbar 0-65 mbar 0-65 mbar 0-65 mbar
Resolution Dp 0,01 mbar 0,01 mbar 0,01 mbar 0,01 mbar 0,01 mbar 0,01 mbar 0,01 mbar
Direct pressure accuracy 1,0%FS 1,0%FS 1,0%FS 1,0%FS 1,0%FS 1,0%FS 1,0%FS
Direct pressure measurement range 0-FS 0-FS 0-FS 0-FS 0-FS 0-FS 0-FS
Direct pressure resolution 0,01 mbar 0,01 mbar 0,1 mbar 0,1 mbar 0,1 mbar 0,1 mbar 1  mbar
Accuracy measuring loss in cc/’ 1%RDG+0,01cc/min 1%RDG+0,01cc/min 1%RDG+0,03cc/min 1%RDG+0,03cc/min 1%RDG+0,03cc/min 1%RDG+0,03cc/min 1%RDG+0,03cc/min
Measurement range in cc/’ 0-10 cc/min 0-10 cc/min 0-10 cc/min 0-10 cc/min 0-10 cc/min 0-10 cc/min 0-10 cc/min
Measured measurement resolution in cc/’ 0,01 cc/min 0,01 cc/min 0,01 cc/min 0,01 cc/min 0,01 cc/min 0,01 cc/min 0,01 cc/min
Measure unit mbar, bar, psi, mmHg, mmH2O, Pa, HPa, cc/min, cc/h, pressure/s.
Dimensions equipment L:180 H:160 l:200 mm
Dimensions remote group L:45 H:130 l:85 mm
Weight 5 kg
Display size 320 x 240pixel
Operating temperature range 5-40 °C
RS232 ports 2
RS485 ports 1
“master” USB port 1
“slave” USB port 1
Ethernet port Optional
I/O signals Start, Stop, Filling, Test, Good, Reject, 4BCD
Auxiliary I/O signals (optional) -
Number of programs 100
Test archive memory Standard
Password block Yes
Program name No
Note The resolution to be considered for accuracy is always 1 Pa.

Reference Normatives: EN 61010-1, EN61326-1 / EN61326/A1, EN61000-3-2 / EN61000-3-2/A14, EN61000-3-3 / EN61000-3-3/A1, EN61000-4-2 / EN61000-4-2/A1, EN61000-4-3 / EN61000-4-3/A1 / EN61000-4-3/A2, EN61000-4-4, EN61000-4-5, EN61000-4-11, EN1779
  • The resolution for uncertainty calculation is 1 Pa up to 10 bar.
  • The flow measurement of the flow meters is of mass type and referred to the reference condition of 0°C - 1013,25mbar.
  • Flow measurement of leak test equipment is volumetric.
  • Accuracy data are referred to and guaranteed under laboratory calibration conditions.
  • The accuracy of the flow measurement is referred up to 2 bar, for higher pressures variations are possible depending on the characteristics of the model.
  • For measurement scales greater than the limits indicated, the accuracy will be specified in the offer phase.

  • External exhaust solenoid with protection filter
  • External start button
  • External start/abort pushbutton
  • External pushbutton 4 programs selection
  • Start pedal
  • Barcode reader
  • Adhesive label for printer 4500pcs
  • Aux signals extension cable
  • Venturi Vacuum generator
  • Air filter
  • M series manager software
  • Serial protocol
  • External 24 VDC power supply
  • PC serial cable
  • Software Data Manager
  • Thermal printer with peel-off
  • Thermal printer without peel
  • Adapter cable AUX M Series - ET Series
  • Remote Start / Abort / Good / Reject
  • Software "Data Manager"
  • Air filter 5 micron

  • Pneumatics with micro electro valves - (STANDARD)
  • Frontal precision pressure regulator - (STANDARD)
  • Pneumatic module of remote measurements - (STANDARD)
  • Bi-manual logic Start Input
  • High resolution measure - (STANDARD)

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