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Vestfrost Solutions ULTF-91i — compact upright ult freezer for benchtop placement for controlled storage in the specified temperature range. Select the operating setpoint for the requirements of the stored material.
Temperature range−20…−86 °C
Net capacity88 L
External dimensions (H × W × D)836 × 947 × 720 mm
Key features
- Controller: i-Care, 5-inch touchscreen
- Alarms: High/low temperature, door open, power failure, sensor fault
- Logging: Data and alarms; temperature graph
- Door / lock: Solid, non-reversible / lock included
- Compressor: 1, variable speed
- Defrost: No automatic defrost
Technical specifications
| Model | ULTF-91i |
|---|---|
| Manufacturer | Vestfrost Solutions A/S, Denmark |
| Type | Compact upright ULT freezer for benchtop placement |
| Temperature range | −20…−86 °C |
| Net capacity | 88 L |
| External dimensions (H × W × D) | 836 × 947 × 720 mm |
| Depth including handle | 790 mm |
| Internal dimensions (H × W × D) | 310 × 640 × 445 mm |
| Gross / net weight | 137 / 102 kg |
| Interior / exterior material | Stainless steel / painted steel |
| Insulation | Polyurethane with cyclopentane, 120 mm; VIP panels |
| Mobility | 3 adjustable feet, 3 castors |
| Air distribution | Static |
| Compressor | 1, variable speed |
| Refrigerant | Nature R2, 149 g |
| Sensors | 2 |
| Controller | i-Care, 5-inch touchscreen |
| Controller languages | EN, DE, FR |
| Logging | Data and alarms; temperature graph |
| Interfaces | USB, dry contact |
| Alarms | High/low temperature, door open, power failure, sensor fault |
| Controller backup battery | Up to 24 hours |
| Access port | Ø 20 mm |
| Door / lock | Solid, non-reversible / lock included |
| Vacuum relief valve | Yes |
| Power supply | 100–240 V, 50/60 Hz |
| Operating and test conditions | Up to +32 °C; up to 65% humidity; test data at +25 °C |
| Temperature uniformity | ±2.5 °C |
| Pull-down time to −75 °C | 103 min |
| Energy consumption | 5.22 kWh/24 h at −80 °C; 1905 kWh/year |
| Noise level | <48 dB |
| Defrost | No automatic defrost |
Application and configuration
Use only for materials whose storage requirements fall within the stated temperature range. Confirm the required usable capacity, container layout, ambient conditions and installation clearances before ordering. Energy consumption, uniformity and holdover figures apply to the stated test conditions. Confirm rack, cryobox and tube compatibility for the selected configuration. Where fitted, the controller backup battery does not power the cooling system.
Compare specifications: Ultra-Low Temperature Freezer ULTF-7i (−20…−86 °C, 7 L)
Racks and cryoboxes
Optional configuration for organised sample storage in 50 mm high cryoboxes. Racks and boxes are ordered separately from the freezer.
| Rack part number | Boxes per rack | Rack dimensions, mm | Quantity in supplier quote | Boxes for this quantity |
|---|---|---|---|---|
| TE23124 | 15 | 278×422×139 | 4 | 60 |
| TE24224 | 15 | 278×422×139 | 4 | 60 |
| TE21394 | 3 | 140×420×56 | 2 | 6 |
Available part numbers and quantities follow the manufacturer's quotation. The final ULTF-91i configuration is confirmed when ordering.
Standard racks TE23124 and TE24224 each hold 15 boxes in a 5×3 H×D layout. Side up rack TE21394 holds 3 boxes. Simultaneous installation of all listed items has not been confirmed.
Dimensions follow the manufacturer's order. Box specification, tube compatibility and configuration price are confirmed when ordering.