Flow Tester CETATEST 925 - for volume flow measurement The CETATEST 925 test device is suitable for flow testing using compressed air as test medium. The measuring method uses the fact that in a laminar flow, the pressure difference between two measuring points is directly proportional to the volume flow. Laminar flow elements (LFE) are used to laminarise the air flow. The pressure difference is measured with a differential pressure sensor. In the direct method, the air flow supplied by the pressure regulator first flows through the LFE and then through the test part. In the indirect method, the LFE is located in the outlet flow of the test part. The use of an electronic pressure regulator and flow calibrations at different LFE pressures results in an extended range of applications. System | Signal processing Industrial PC: Quad Core CPU, 1.8 GHz, 4 GB RAM, 128 GB SSD. Micro-controller system for the test process control: 32-bit ARM pC/ 84 MHz. Fast 24-bit A/D converter, real-time processing of measurement signals Pressure sensors Gauge pressure sensor (test pressure) Differential pressure sensor (pressure difference at LFE) Pressure ranges Electronical pressure regulator (EPR): -1 bar, -1/+1 bar, -1/+6 bar, 200 mbar, 1 bar, 6 bar Mechanical pressure regulator (MPR): -1 bar, -1000 mbar/+150 mbar, 150 mbar, 1 bar, 6 bar, Other ranges on request Maximum Deviations Specification for combined devices based on positive gauge pressure Volume flow: 2 % * Result units ml/min, ml/h, l/min, l/h, mbanl/s Measurement ranges of the laminar flow elements Type of LFE Flow at positive gauge pressure Test connections * referred to full scale value

Leak Tester Flow Interface for optional extensions Test output Option: bypass Optional module for additional interfaces such as Profibus DP, Profinet, EtherCAT or USB (Slave) Controlled pressure output (option) Digital signal inputs RS-232 interface USB Host Ethernet Power supply Test options | Additional functions Standard: Direct method, nominal pressure optimisation With EPR: prefill, pulsing, smooth filling Optional: Indirect method, bypass, program series, exponential extrapolation, free programmable control valves Display | Operation 7-inch touch screen, dual jog dial, separate start/stop-buttons,...