System: Forced air circulation Operating temperature range: Room temperature +30℃ - 260℃ Temperature rise time: Approximately 70 minutes (at 260℃) Temperature control accuracy: JTmK05 +/- 0.3℃ (at 260℃), Temperature variation: JIS +/- 0.5℃ (at 260℃) Temperature distribution accuracy: JTmK05 +/- 2.5℃ (at 260℃), Temperature gradient: /JIS10℃ (at 260℃) Cleanliness: Steady-state temperature class 100 Inner dimension (mm): 450 x 450 x 450 Outer dimension (mm): 700 x 1025 x 1570 Power 50/60Hz: 3-phase 200V