Heating oven M 420 P

dryinglaboratoryforced convection

Product overview
The M 420 P laboratory oven is engineered for precise heating and drying tasks in medium-size laboratories. It offers a 48 L chamber, a working temperature range from ambient +5 °C up to 250 °C, PID digital temperature control and SSR load switching for stable performance. Fan-driven air circulation ensures more homogeneous temperature distribution than natural convection. The chamber is stainless steel and the unit uses rock wool insulation to reduce heat loss. Built-in safety features include a liquid-expansion safety thermostat. Two perforated stainless-steel shelves are supplied for flexible sample placement.

Technical specifications

• Working temperature range: Ambient +5 °C to 250 °C
• Chamber volume (capacity): 48 liters
• Thermoelement type: J-type
• Temperature control: PID digital control
• Load switching element: SSR (Solid State Relay)
• Thermostat setting increments: 1 °C
• Thermostat working accuracy: ±1 °C
• Thermometer display increments: 1 °C
• Chamber temperature accuracy: ±2 °C
• Circulation: Fan-driven air circulation for homogeneous heat distribution
• Postpone/process time: 1 min – 59 h 59 min
• Timing begins: When the set temperature is reached
• Safety measure: Safety thermostat with liquid expansion (50–300 °C)
• Casing material: Sheet steel with stoved enamel paint finish
• Chamber material: Stainless steel
• Insulation material: Rock wool
• Shelves: 2 perforated stainless-steel shelves
• Fuse: 6 A
• Power rating: 1000 W
• Power supply: AC 190–240 V / 50–60 Hz
• Chamber dimensions (W × D × H): 42 × 33 × 35 cm
• Overall dimensions (W × D × H): 71 × 49 × 54 cm
• Net weight: 33 kg
• Gross weight: 38 kg

FAQs

• 1. What is the capacity of the M 420 P? The oven provides a 48 L chamber, suitable for medium-scale laboratory batches.
• 2. How is temperature uniformity achieved? Uniformity is improved by a fan-driven air circulation system that distributes heat more evenly than natural convection.
• 3. Is the oven safe for extended operation? Yes. A liquid-expansion safety thermostat prevents overheating and supports prolonged use under controlled conditions.
• 4. What are the chamber and casing materials? The chamber is stainless steel for corrosion resistance and easy cleaning; the casing is sheet steel finished with stoved enamel paint.
• 5. What are the electrical requirements? The unit is rated at 1000 W and requires AC 190–240 V / 50–60 Hz.