The Yamato LTF-501UP is a 505 L (18 cu.ft) upright low-temperature freezer holding 0 °C to −40 °C, organized into five compartments behind four adjustable shelves with a door-mounted touch-screen controller. The Yamato LTF-501UP brings single-stage −40 °C refrigeration to a vertical footprint that keeps samples at eye level and easy to inventory, and — because every LTF is factory-tested for seven days — guarantees its setpoint in warm (+30 °C) rooms. Its Platinum controller adds Hi/Low alarms with email and SMS notification, USB/FTP data logging, and VNC remote access. It is the upright choice for organized, walk-up access to a −40 °C collection.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato LTF-501UP (LTF Platinum upright series) |
| Style | Upright / vertical |
| Temperature range | 0 °C to −40 °C |
| Capacity | 505 L / 18 cu.ft |
| Shelving | 4 adjustable shelves (5 compartments) |
| Rack capacity | 20 |
| Refrigeration | Single-stage, one hermetic compressor |
| Refrigerants | CFC-free & HCFC-free |
| Control | Door-mounted touch-screen; set point + chamber temp |
| Alarming | Hi/Low alarm with email + SMS; dry-contact alarm & power-fail relays; battery back-up |
| Data | Temperature graph, USB/FTP logging, VNC remote access, multi-level security |
| Defrost | Manual |
| Access port | ½" porthole (left side) with plug |
| Construction | 14-ga zinc-coated galvanized chamber; 16-ga steel exterior, powder-coated cool gray |
| Internal dimensions | 23 × 26 × 51.25 in (58 × 66 × 130 cm) |
| External dimensions | 40 × 36 × 79.5 in (101 × 91 × 201 cm) |
| Electrical | 115V 60Hz 1-phase (208V / 230V / 220V options) |
Application Profile
The LTF-501UP answers the common need for organized −40 °C storage at eye level. It divides 505 L into five inner-door compartments behind four adjustable shelves, so opening one section to retrieve a rack does not warm the whole cabinet — the practical advantage for shared low-temperature storage where reagents, enzymes, buffers, media, and samples are pulled throughout the day. Because this material stores correctly below ultra-low, a right-sized single-stage low-temperature freezer holds it more efficiently than filling an −80 °C ultra-low would (see cold-storage-selection).
Every LTF is factory-tested for seven days under demanding conditions, so the setpoint is guaranteed even in warm rooms. The door-mounted touch-screen Platinum controller adds the monitoring layer a modern facility expects — email/SMS alarms, downloadable temperature logs, and VNC remote access to prove the cold chain held and to catch an excursion before it becomes a loss (see cold-chain-sample-storage). A ½" access port accepts external probes, and a chart recorder plus CO₂/LN₂ back-up are available as options.
Frequently Asked Questions
What temperature range and capacity does the LTF-501UP offer? 0 °C to −40 °C in a 505 L / 18 cu.ft upright cabinet with four adjustable shelves across five compartments and a 20-rack capacity.
Why choose an upright over a chest freezer? Uprights keep samples at eye level for fast retrieval and inventory; the five inner-door compartments limit warming when you open one section, which suits high-traffic shared storage.
Low-temperature or ultra-low — which do I need? If your reagents, enzymes, and samples store correctly at −20 to −40 °C, the single-stage LTF-501UP is the efficient choice. Reserve cascade ultra-low ULF freezers (−80 °C) for material that genuinely requires it.
How does it alarm and log? A door-mounted touch-screen controller with Hi/Low alarms via email and SMS, dry-contact alarm and power-failure relays, a battery-backed alarm, and downloadable temperature logs (USB/FTP) plus VNC remote access.
Is defrost automatic? No — manual defrost, standard for laboratory low-temperature storage.
Ordering & Configuration
quote-based. The LTF-501UP is a capital low-temperature freezer sold through a quote. At quote we confirm electrical service (115 V standard, or 208/220/230 V), floor space and ventilation clearance for the 101 × 91 × 201 cm cabinet, shelf/rack configuration, and chart-recorder or CO₂/LN₂ back-up options. Warranty terms are confirmed with the quote, and lead time is provided at quotation. Request a quote to configure the LTF-501UP for your storage program.
LTF Platinum low-temperature, by format: the LTF-501UP (505 L / 18 cu.ft upright) gives organized walk-up access to a −40 °C collection; chest LTF-301CP/701CP units trade that access for door-opening cold retention. For −80 °C storage, move to the ULF Platinum ultra-low line. All share the Platinum touch-screen controller and networked alarming.
