Flow leak tester T8997

mass flowabsolute pressure decayfor gas device function test

Overview
The T8997 combines leak testing and flow testing in a single instrument. It is equipped with the ForTest MMI video controller featuring a capacitive tempered-glass panel and a 6.2” colour display. Parameter programming is accelerated by an integrated numerical keyboard and large display; the main screen provides shortcuts such as test program change, smart test archive and password locking/unlocking.

User interface & display

• 6.2” colour display
• Test graphic
• Full area touch screen
• Extended programming keyboard

Connectivity
Includes ports for USB (master and slave), RS232, RS485, CAN, TTY, Profinet, EtherNet/IP and EtherCAT. An optional Ethernet port and a 26-pole auxiliary connector with 4 inputs and 8 programmable outputs can be assembled. A front master USB port permits saving tests, backup/restore parameters and firmware upgrades. Connections to thermal printers, barcode/data-matrix readers and markers are supported via internal menus.

Measurement technologies
The instrument integrates two measurement technologies: absolute pressure drop (for micro losses) and mass measurement (for flow tests). The two measurements operate individually (not simultaneously) and automatic sequences can be programmed directly from the panel. The T8997 is suitable for tests in the gas sector (gas ramps, injectors) and medical applications (bags, filters, etc.).

Metrology and performance
The device features advanced measurement architecture including centring technology in windows and a double Faraday optical-isolated cage, achieving settling times under 18 ms. This provides a real measurement resolution of 0.1 Pa at 1 bar (0.5 Pa at 6 bar), stable and noise-free. Built-in processor and coprocessor further accelerate test cycles.

Pneumatic section
Latest-generation solenoid valves increase filling speed by about 30% compared to previous models. The pneumatic design is optimized for reliability and low maintenance; it exhibits high strength against humidity and requires no periodic pneumatic maintenance under normal conditions.

Design
The front panel is a single sheet of tempered glass and aluminium for easy cleaning, making the T8997 suitable for laboratory and production-line environments. The graphic interface is user-friendly and focuses on displaying only the most important information.

Key technical highlights

• Two separate measurement modes: absolute pressure-drop and mass flow
• Resolution from 0.1 Pa
• Settling time < 18 ms
• Filling speed +30% vs previous model
• USB master and slave ports, RS232, RS485, CAN, TTY, Profinet, EtherNet/IP, EtherCAT
• Advanced test archive and password protection

Accessories (listed on product page)

• External exhaust solenoid with protection filter
• 3 way pneumatic valve
• Pilotage solenoid
• 5 way pneumatic valve
• External start button
• External start/abort pushbutton
• External pushbutton 4 programs selection
• Start pedal
• Barcode reader
• Adhesive label for printer (4500 pcs)
• Aux signals extension cable
• Venturi vacuum generator
• Air filter
• Staubli male connector
• Precision micrometer nozzle
• Micrometer nozzle
• M series manager software
• TTY
• Serial protocol
• Electrovalve group "cylinder's" type with filter
• PC serial cable owner → M Series
• External temperature probe
• 3-way pneumatic valve with pilot valve
• MIXER-07
• Software Data Manager
• Staubli female fitting
• Thermal printer with peel-off
• Thermal printer without peel
• Adapter cable AUX M Series → ET Series
• Remote Start / Abort / Good / Reject
• Air filter 5 micron

Optionals (listed on product page)

• Interior exhaust valve
• Frontal connector for Staubli calibrated leak (STANDARD)
• Frontal precision pressure regulator
• Electronic pressure regulator
• Auto zero primary pressure circuit
• Pre-filling
• Waiting primary pressure reading
• Secondary output of waste (third result)
• Barometric measurement
• Leak analog output
• I/O 24 Vdc expansion signal card
• Bi-manual logic Start Input
• Ethernet plug / TCP-IP
• Active USB port (STANDARD)
• WI-FI connection
• Radio remote control selection kit
• High resolution measure (STANDARD)
• Profinet Interface
• EtherCAT Interface
• Bluetooth Low Energy (STANDARD)

Caractéristiques / spécifications techniques

• Models / Full Scale options: 0-1 bar, 1-2 bar, 2-6 bar
• Accuracy Dp: 0,5% RDG + 3 DGT (all models)
• Range of measurements Dp: 0-65 mbar
• Resolution Dp: 0-1 bar → 0,001 mbar; 1-2 bar → 0,002 mbar; 2-6 bar → 0,005 mbar
• Direct pressure accuracy: 0,5% FS
• Direct pressure measurement range: 0 - FS
• Direct pressure resolution: 0,1 mbar
• Accuracy measuring loss (cc/min): 1% RDG + 0,03 cc/min
• Measurement range in cc/min: 0-10 cc/min
• Measured resolution in cc/min: 0,01 cc/min
• Flow measurement range: 0-20 l/min
• Flow measurement resolution: 1 cc/min
• Flow measurement accuracy: 3% RDG + 0,1% FS
• Measure units available: bar, mbar, psi, mmHg, mmH2O, Pa, HPa, cc/min, cc/h, pressure/s
• Dimensions: 270 x 160 x 300 mm
• Weight: 9 kg
• Display size: 800 x 280 pixel
• 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): 8 outputs programmable, 4 inputs programmable, 4BCD
• Number of programs: 300
• Test archive memory: Advanced
• Password block: Yes
• Program name: Yes, 16 characters
• Notes: Resolution to be considered for accuracy is always 1 Pa. Resolution for uncertainty calculation is 1 Pa up to 10 bar. Flow meters mass-type reference condition: 0°C - 1013.25 mbar. Leak test equipment flow measurement is volumetric. Accuracy data referred to laboratory calibration conditions. Flow accuracy referred up to 2 bar; for higher pressures variations possible depending on model characteristics.