Large-Display Leak Tester
The 7i has been Zaxis’s large-display flagship for demanding, multi-port leak-test stations. It has now reached end of life and will have limited parts availability after 2028. If 7i testers anchor your production or R&D stations, plan the move to the Zaxis Z8 now, while it can be scheduled rather than forced.
The Z8 is the 7i’s direct successor — the same large-format, up-to-four-port concept, rebuilt on the current Z-series platform. The pneumatics are the same, so fixtures, manifolds and test pressures carry over, and the Z8 firmware has been tested side by side with the 7i to deliver identical test results where applicable. Your validated programs and limits transfer.
The gains are real. The Z8 adds test methods including back-pressure flow, adds OPC UA and HDMI; Ethernet/IP, TCP/IP and RS232/RS485 are shared with the 7i, replaces the 24-bit converter with a 32-bit A/D for finer resolution and faster scan rates, extends pressure ranges to 1,000 PSIG, and moves to an 8” pinch-zoom touchscreen with light and dark modes. It is built on a future-proof supply chain with a long production horizon.
Zaxis will help draft your IQ, OQ and PQ documents from your existing documentation to expedite validation of the Z8. Upgrade your fleet before it becomes an emergency — request an upgrade quote and we will map each 7i configuration to its Z8 equivalent.
Request for QuoteThe 7i will have limited parts availability after 2028. The Z8 carries the 7i’s large-display, multi-port role forward on a platform that will be supported for years.
Validation support: Zaxis will help draft IQ, OQ and PQ documents from your existing documentation to expedite qualification of the replacement tester.
Upgrade your fleet before it becomes an emergency.
These are the methods 7i stations were configured for. Every one of them is available on the Zaxis Z8, which adds back-pressure flow — so a 7i program has a direct Z8 equivalent.
Specifications below are for reference when matching an existing 7i station to its replacement. The Z8 covers every range and method listed here; contact Zaxis and we will map your configuration to the equivalent Z8 build.
The 7i is no longer sold. The table shows the current Zaxis lineup so you can choose its replacement: for large-display, multi-port stations that is the Z8 (same pneumatics, up to four ports, 8” touchscreen).
| Test Types |  Zaxis Z8 |  Zaxis Z5 |  Zaxis Z1 |  Zaxis Z5L |  Zaxis Z8N |  VM3 Volumetric |
|---|---|---|---|---|---|---|
| Pressure Decay | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Vacuum Decay | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Occlusion | ✓ | ✓ | ✓ | ✓ | ✓ | × |
| Thermal mass flow | ✓ | ✓ | ✓ | × | ✓ | × |
| Laminar mass flow | ✓ | × | × | × | × | × |
| Burst | ✓ | ✓ | ✓ | × | ✓ | × |
| Pressure Cracking | ✓ | ✓ | × | × | ✓ | × |
| Chamber | ✓ | ✓ | ✓ | × | ✓ | × |
| Back Pressure Flow | ✓ | ✓ | × | × | ✓ | × |
| High pressure (>200 psi) | ✓ | ✓ | ✓ | × | ✓ | × |
| Volumetric Decay | × | × | × | × | × | ✓ |
7i testers anchor production and R&D stations across medical-device, automotive, electronics and industrial manufacturing. Zaxis supports every one of those installations through the transition to the Z8.
The 7i will have limited parts availability after 2028. Its direct successor is the Zaxis Z8: same pneumatics and up-to-four-port format, firmware validated side by side for identical results where applicable, plus OPC UA and HDMI connectivity, a 32-bit A/D, additional test methods and an 8” touchscreen. Zaxis will help draft IQ/OQ/PQ documents to expedite your validation.
The 7i runs pressure decay, vacuum decay, occlusion, mass flow, burst, chamber and pressure cracking tests. Each tester is configured for the methods needed by its application.
The 7i supports up to four test ports; multiple test types can be stored and run per program. It is available with one to four valves.
The 7i stores up to 100 test programs for different applications.
It has a large 7-inch color touch screen with a high-readability interface that supports quick setup without lengthy training.
Communication options include USB, RS232, I/O and Ethernet TCP/IP, with optional EtherNet/IP.
The 7i supports 0–3, 0–15, 0–100, 0–300 and 0–500 PSIG positive-pressure ranges and 0–15 PSI vacuum. Confirm the selected configuration with Zaxis.
