| roduct Name | Vacuum Oven |
| Model | VOS-201SD | VOS-301SD | VOS-451SD | VOS-601SD |
| Cat. No. | 181680 | 181690 | 181700 | 181710 |
| Heating method | Chamber heating |
| Temp. control range | 40～240℃ | 40～200℃ |
| Temp. control accuracy | ±1.5℃ |
| Ultimate vacuum | 133Pa (1 Torr) |
| Max. temp. reaching time | 70 min | 80 min | 100 min |
| Temp. control & sensor | P.I.D control with auto tuning function, non-contact zero cross output, K thermocouple |
| Program | Digital timetr (1min.～99h59min), Timer function (Auto start・stop), Repeat (2 steps), |
| Step program (max. 8 steps) |
| Safety functions | Self diagnosis (Door open alarm, Overheat alarm, Sensor alarm, Upper/lower temp. limit alarm, |
| Power failur, Temp. control mal-function), Independent overheat protector, Leak/overcurrent braker |
| Heater | 0.72kW | 1.2kW | 2.1kW | 2.5kW |
| Vacuum gauge | Bourdon tube vacuum gauge (0～0.1MPa scale) |
| Chamber dimensions(mm) | 192W x 270D x 192H | 300W x 300D x 300H | 450W x 450D x 450H | 600W x 600D x 600H |
| Chamber capacity | 10L | 27L | 91L | 216L |
| Shelf load & material | Max. 15kg/shelf, NSSC180 |
| Shelf | 2 pcs | 2 pcs | 3 pcs | 4 pcs |
| Shelf pitch & step | | 90mm 2 steps | 71mm 4 steps | 71mm 6 steps | 95mm 6 steps |
| Observation window | | 160W x 160 H | 250W x 250H | 430W x 430H |
| Overall dimensions(mm) | | 355W x 400D x 580H | 505W x 540D x 760H | 655W x 595D x 905H | 860W x 780D x 1720H |
| Weight | 40kg | 60kg | 110kg | 280kg |
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