Absolute pressure decay leak tester K7090

differential pressure decayvacuumflow

Overview
The K7090 integrates ForTest's patented Dual Absolute® measurement architecture to overcome limitations of traditional differential leak testers. It combines four measurement modes in one unit (Absolute Decay, Classic Differential, Dual Absolute, Zero Central) and offers wide configurability of pneumatic options and measurement ranges for industrial leak testing applications.

Key features

• Dual Absolute® patented technology for improved test stability and simplified setup
• Four measurement modes in a single instrument
• Minimal maintenance design and industrial-ready UI
• 5.7" color capacitive touchscreen embedded in tempered glass
• Dynamic LED bar and backlit keyboard for production cycle management

Pneumatic and measurement capabilities
Measurement scales from -1 to 15 bar. Stores up to 300 test programs. Standard pneumatic kit includes a high-precision manual pressure regulator (electronic regulator optional) and Stäubli® fitting for quick verification with calibrated leaks. Supports volumetric and positive/negative tests where applicable.

Connectivity and Industry 4.0
Standard interfaces: RS232, RS485, USB, Bluetooth, Wi‑Fi; Ethernet and industrial protocol modules optional (Profinet, EtherNet/IP, EtherCAT, Modbus) for SCADA/MES integration and remote data logging.

Application sectors

• Household appliances
• Medical devices
• Mechanical components
• Hydraulics / oleodynamics
• Packaging
• Pneumatic / automotive

Accessories & options (selected)

• External discharge solenoid valve with filter
• 3-way / 5-way pneumatic valves, pilot solenoid valve
• External start/abort push-button panels, start foot pedal, barcode reader
• Stäubli® male and female connectors
• Precision micrometric valves, Venturi, air filters
• Leak Test Manager T-Series and Data Manager T-Series software
• Protocol modules and industrial interfaces (Profinet, EtherCAT, EtherNet/IP)

Technical specifications

• Model: K7090
• Measurement modes: Absolute Decay, Classic Differential, Dual Absolute, Zero Central
• Measurement scales (primary): -1 to 15 bar
• Dp accuracy: 0.5% RDG + 3 DGT (across listed ranges)
• Dp measurement ranges: 0-65 mbar (lower FS ranges), 0-650 mbar (higher FS ranges)
• Dp resolution: 0.001 mbar to 0.1 mbar depending on range
• Direct pressure accuracy: 0.5% FS
• Leak flow accuracy (cc/min): 1% RDG + 0.03 cc/min; range 0-10 cc/min; resolution 0.01 cc/min
• Volume measurement: 0-500 cc (where applicable), resolution 0.1 cc, accuracy 1% RDG + 2 cc/min
• Display: 5.7" – 800×480 px
• Dimensions: 220 × 140 × 250 mm; Weight: 4 kg
• Operating temperature: 5–40 °C
• Ports: RS232 (2), RS485 (1), USB master/slave (1/1), Ethernet optional
• I/O signals (standard): Start, Stop, Filling, Test, Good, Reject, 4BCD; optional I/O expansion available
• Number of programs: 300; Test archive: advanced; Password protection; Program name up to 16 characters

Notes
Resolution to consider for uncertainty evaluations: 1 Pa up to 10 bar. Accuracy data are referred to laboratory calibration conditions. Flow measurement is volumetric for leak testing; massic flow references are indicated where applicable. Compliance references: EN 61010-1, EN61326-1, EN1779 and related EMC/EMI standards.