The Yamato AC-515A is the 220 V version of Yamato's automatic single-operator anaerobic chamber: a single press of the on-screen "Go Anaerobic" button purges and holds an oxygen-free atmosphere with no manual valve work. Configured for 220 V / 50ā60 Hz, it carries the same touch-screen controller, continuous percent-and-ppm oxygen display, automatic pressure-hold, and 24-hour USB data logging as the AC-505A, on the 55-inch single-operator chassis. It suits labs outside 120 V regions that need reproducible, hands-off anaerobic control.
Key Specifications
| Configuration | Single-operator chamber; automatic "Go Anaerobic" purge |
| Oxygen sensor | 0ā100.0% Ā±1.0%; 0ā10,000 ppm Ā±1.0% FS (auto-switches to ppm below 0.5% O2) |
| Temperature range | Ambient to 41 Ā°C, accuracy Ā±0.5 Ā°C |
| Gas to reach anaerobic | 300 L |
| Pressure range | ā3 to +3 in WC (ā1500 to +1500 Pa), automatic pressure hold |
| Optional Rh control | 5ā90% Rh, accuracy Ā±1.0% |
| Control / logging | Touch-screen display; on-screen 24-hr data logging via USB; high/low alarms with history; password-protected admin |
| Gas selection | User-selectable nitrogen or anaerobic gas mixture |
| Inside dimensions | 41 Ć 28 Ć 26 in / 1041 Ć 711 Ć 660 mm |
| Outside dimensions | 55 Ć 35 Ć 38 in / 1397 Ć 889 Ć 965 mm |
| Power | 220 VAC, 50/60 Hz, 3 A |
| Shipping weight | 450 lbs / 205 kg (crated) |
| List price | Contact for pricing |
Application Profile
The Yamato AC-515A brings one-touch automation to 220 V labs. Its "Go Anaerobic" sequence purges both the main and transfer chambers and then holds a user-set pressure between ā3 and +3 in WC automatically, removing the manual valve work of the AC-515. The touch-screen controller shows oxygen continuously in percent and, once the level drops below 0.5%, switches to a parts-per-million readout, the resolution required to verify a genuinely anaerobic atmosphere for strict anaerobes and oxygen-sensitive chemistry.
For long or regulated studies, on-screen 24-hour data logging with a USB port records the oxygen and pressure history, high/low alarms with a history log flag any excursion, and a password-protected administration window secures the settings. Reaching anaerobic conditions uses roughly 300 L of the selected gas (nitrogen or anaerobic mixture), and an optional relative-humidity package (5ā90% Rh, Ā±1.0%) extends the chamber to moisture-controlled work. On the compact single-operator footprint, the AC-515A delivers auditable, repeatable anaerobic conditions on international mains.
Frequently Asked Questions
What voltage does the AC-515A use? 220 V at 50/60 Hz, drawing 3 A. The AC-505A is the equivalent automatic chamber for 110ā120 V service.
Is the AC-515A the same as the AC-505A? Yes, the same automatic "Go Anaerobic" single-operator chamber, touch screen, sensors, and dimensions; the difference is the 220 V line voltage.
How does the automatic purge work? Pressing "Go Anaerobic" runs an automatic purge of both the main and transfer chambers, then an automatic pressure-hold function maintains the user-selected pressure.
How low an oxygen level can it display? The sensor reads down to the ppm range (0ā10,000 ppm Ā±1.0% FS) and automatically switches from percent to ppm once O2 falls below 0.5%.
Does it record data for long-term studies? Yes, on-screen 24-hour data logging with a USB port, plus alarms with a history log and password-protected administration.
Can humidity be controlled? Optionally, with an Rh monitoring and control package covering 5ā90% Rh at Ā±1.0% accuracy.
Ordering & Configuration
The AC-515A is quote-based capital equipment. Add it to your quote and our team will confirm current pricing, the optional Rh package, gas selection, and lead time. It ships crated as a complete system (~450 lbs); arrange an inert-gas supply for install.
Warranty: Per Yamato standard terms. Safety: Never use in a flammable or explosive gas atmosphere, and never introduce explosive or flammable materials.
Positioning: The Yamato AC-515A is the 220 V automatic single-operator anaerobic chamber. Choose it for one-touch purging and continuous %/ppm oxygen readout on 220 V service. Pick the AC-505A for 115 V, the manual AC-515 for a lower-cost hands-on option, or the four-glove AC-706/716 for two operators.
