Modular Production Leak Tester
The Isaac HD has been a dependable modular production leak tester for years, but it was discontinued on 03/31/25 and will have limited parts availability after 2028. If Isaac HD testers are part of your production line, now is the time to plan the move to the Zaxis Z5 — before a failed unit turns a scheduled upgrade into an emergency.
The Z5 is the direct successor, engineered as a drop-in path rather than a new platform to validate from scratch. The pneumatics are the same, so your fixtures, fittings and test pressures carry over, and the Z5 firmware has been tested side by side with the Isaac HD to deliver identical test results where applicable. Your proven programs, limits and cycle times transfer with confidence.
What changes is what you gain. The Z5 adds test methods including back-pressure flow, adds OPC UA and HDMI connectivity; Ethernet/IP is shared with the Isaac HD for modern automation and data collection, replaces the 24-bit converter with a 32-bit A/D for finer resolution and faster scan rates, and puts a 5” pinch-zoom touchscreen on the front. It is built on a future-proof supply chain with a long production horizon, so the tester you install today stays serviceable.
Validation does not have to slow the transition. Zaxis will help draft your IQ, OQ and PQ documents from your existing documentation to expedite qualification of the Z5 on your line. Upgrade your fleet on your schedule, one station or all of them — request an upgrade quote and we will map each Isaac HD configuration to its Z5 equivalent.
Request for QuoteThe Isaac HD will have limited parts availability after 2028. The Z5 was designed so that moving an Isaac HD station to a Z5 is a controlled, low-risk change — not a re-engineering project.
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 Isaac HD stations were configured for. Every one of them is available on the Zaxis Z5, which adds back-pressure flow — so an Isaac HD program has a direct Z5 equivalent.
Specifications below are for reference when matching an existing Isaac HD station to its replacement. The Z5 covers every range and method listed here; contact Zaxis and we will map your configuration to the equivalent Z5 build.
The Isaac HD is no longer sold. The table shows the current Zaxis lineup so you can choose its replacement: for most Isaac HD stations that is the Z5 (same pneumatics, up to four ports, 5” touchscreen); for a single channel inside a machine, the Z1.
| 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 | × | × | × | × | × | ✓ |
Isaac HD testers are installed across medical-device, automotive, electronics and industrial production. Zaxis supports every one of those installations through the transition to the Z-series.
No. The Isaac HD was discontinued on 03/31/25 and will have limited parts availability after 2028. Its direct successor is the Zaxis Z5: same pneumatics, firmware validated side by side for identical results where applicable, plus OPC UA and HDMI connectivity, a 32-bit A/D and additional test methods. Zaxis will help draft IQ/OQ/PQ documents to expedite your validation.
The Isaac HD runs pressure decay, vacuum decay, occlusion, mass flow, burst, chamber and pressure-cracking testing.
Its specified dimensions are 6″ wide, 7″ high and 9″ deep.
The Isaac HD resolves test results to .00001 PSI.
The Isaac HD stores 100 programs, allowing multiple parameters through each port.
Positive-pressure ranges are 0–15, 0–100, 0–300, 0–500 and 0–1000 PSIG; the vacuum range is 0-14.5 PSI. Other ranges are available upon request.
The Isaac HD supports USB, RS232, I/O, Ethernet TCP/IP and optional EtherNet/IP. It also has two-axis fixture control.
The Isaac HD uses clean, dry, non-corrosive gasses compatible with aluminum and 316 stainless steel.
