DescriptionT4890 is a compact dual‑channel absolute pressure‑decay leak tester designed for integration into high‑rate production benches. It combines a 0.1 Pa measurement resolution with a 2.5" high‑contrast OLED display and multiple I/O and communication options (ForTest, CANbus, Modbus, USB, serial). The black anodized aluminium case is configured for DIN‑rail, panel or direct station mounting. Dual pneumatic circuits, ultra‑fast internal valves and reduced test connections cut cycle time compared with single‑channel units. T4890 is intended to replace bespoke test stations (pressure transducers, pneumatic groups and PLC) with a plug‑and‑play solution that minimizes commissioning and programming effort.
Key features- Absolute pressure‑decay leak tester, dual channel
- Measurement resolution: 0.1 Pa (for ranges up to 1 bar)
- 2.5" OLED display (128×64)
- USB for PC connection (management software included) and serial port for printer/barcode reader
- Communication protocols: ForTest, CANbus, Modbus
- Dual pneumatics and ultra‑fast valves to halve test time vs single‑channel units
- Mounting: DIN‑rail, panel or direct on station
- Support for test gases: Hydrogen, compressed air, Nitrogen
Technical data- Brand: ForTest
- Model: T4890
- Case: black anodized aluminium
- Front panel: 3 mm plexiglass
- Display: OLED 2.5" (128×64)
- Resolution of pressure decay: 0.1 Pa (up to 1 bar)
- Pressure full scale options (mbar): -1000, 200, 500, 1000, 2000, 6000 (−1 to 6 bar)
- Power supply: 24 Vdc
- Dimensions (L×H×P): 90 × 150 × 70 mm
- Weight: 450 g
- Connectivity: USB, serial; protocols: ForTest, CANbus, Modbus
- I/O: Inputs (Start, Abort, program recall), Outputs (Test running, Good, Reject, Discharge)
- Programmable storage: up to 50 programs per channel
- Pneumatic tube sizes available (mm): 4×2.7; 6×4; 8×6
Accessories- External exhaust solenoid with protection filter
- External start button
- Start pedal
- Barcode reader
- Adhesive labels for printer (4500 pcs)
- Aux signals extension cable
- Air filter (5 μm)
- M Series manager software / Data Manager
- Serial protocol / USB cable
- External 24 VDC power supply
- Thermal printer (with or without peel‑off)
- Remote Start / Abort / Good / Reject