Graphite annealing 9117

ceramicfor electronicsindustrial

Product overview
The 9117 annealing furnace is designed for controlled annealing of SPRTs and HTPRTs to remove mechanical strain and surface oxide that affect platinum sensor accuracy. The furnace minimizes contamination via a quartz-encased graphite block and provides a programmable controller tailored to annealing cycles. It is used by the manufacturer in its laboratory, confirming suitability for SPRT annealing.

Key benefits

• Restores sensor resistance characteristics after mechanical shock.
• Removes oxidation formed at prolonged temperatures between 200 °C and 450 °C.
• Reduces contamination risk through a specially prepared quartz-encased graphite block.

Key features

• Suitable for annealing both SPRTs and HTPRTs.
• Quartz-encased graphite block prepared to guard against metal-ion contamination.
• Fully programmable controller for annealing (PID control, programmable ramp and soak, thermocouple input).

Models

• 9117 — Annealing Furnace (includes Model 2129 Alumina Block)
• 2129 — Spare Alumina Block, 5 wells

Technical specifications

• Temperature range: 300 °C to 1100 °C
• Stability: ±0.5 °C
• Uniformity: ±0.5 °C at 670 °C (over bottom 76 mm [3 in])
• Power: 230 VAC (±10 %), 50/60 Hz, 12 A, 2500 W
• Display resolution: 0.1 °C below 1000 °C; 1 °C above 1000 °C
• Display accuracy: ±5 °C
• Thermal wells: Five wells, 8 mm diameter x 430 mm long (0.31 x 16.9 in)
• Controller: PID, ramp and soak programmable, thermocouple sensor
• Over-temp protection: Separate circuit protects furnace from exceeding rated temperature limit
• Exterior dimensions (HxWxD): 863 x 343 x 343 mm (34 x 13.5 x 13.5 in)
• Weight: 28 kg (61 lb.)
• Communications: RS-232