The Reckmann GmbH Plug-in MIT Series (specifically featuring Plug-in MIT Model 2 and Plug-in MIT Model 3) represents the premier range of bayonet-style plug-in mineral-insulated thermocouples engineered, calibrated, and manufactured by Reckmann GmbH Sensor & Messtechnik (Germany). Designed specifically for blind-hole temperature measurement in injection molding tools, extrusion barrels, and high-vibration machinery, this series provides fast installation, rugged mechanical durability, and continuous thermal contact.

Technical features and configuration details:
- Plug-in MIT Model 2: Utilizes a flexible mineral-insulated sheath combined with an adjustable bayonet cap and high-tension stainless steel compression spring sliding along the sheath/cable. The spring-loaded bayonet mechanism locks into standard bayonet adapters, providing consistent forward contact pressure that keeps the sensing tip pressed firmly against the bottom of the borehole to prevent thermal bridging and contact loss under heavy machine vibrations.
- Plug-in MIT Model 3: Features a specialized plug-in architecture with a fixed bayonet configuration or integrated rigid anti-kink protection sleeve, designed for structured routing in compact mold cavities subjected to severe mechanical friction and thermal stress.

Both models incorporate a high-density mineral-insulated cable core compacted with high-purity Magnesium Oxide powder (MgO > 99.4%) enclosed within a seamless metallic sheath (Stainless Steel SUS316L / 1.4571 or Inconel 600 / 2.4816). This construction enables flexible bending to fit tortuous machine contours, ensures rapid response times (T0.5 under 1 second), and withstands extreme shock loads.

Available in standard plastics industry calibrations Type J (Fe-CuNi), Type K (NiCr-Ni), and Type N (NiCrSi-NiSi) conforming to Class 1 tolerances per IEC 60584-2 / DIN EN 60584, the sensors come standard with robust stainless steel braided extension leads for maximum mechanical abrasion protection.

• Manufacturer: Reckmann GmbH (Sensor & Messtechnik - Germany)
• Product Line: Industrial Plug-in Mineral-Insulated Thermocouples (Plug-in MIT Series)
• Detailed Model Portfolio:
  - Plug-in MIT Model 2 (Adjustable spring-loaded bayonet cap mechanism for variable immersion depth)
  - Plug-in MIT Model 3 (Fixed bayonet / specialized protection sleeve configuration for compact mold tools)
• Thermocouple Calibrations: Type J (Fe-CuNi), Type K (NiCr-Ni), Type N (NiCrSi-NiSi)
• Tolerance Class: Class 1 per IEC 60584-2 / DIN EN 60584 standards
• Continuous Operating Temperature:
  - Stainless Steel SUS316L / 1.4571 sheath: -40 °C to +800 °C
  - Inconel 600 / 2.4816 sheath: -40 °C to +1150 °C
• Sheath Outer Diameters: 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm, 4.5 mm, 6.0 mm
• Internal Insulation: Compacted high-purity Magnesium Oxide (MgO > 99.4%)
• Measuring Junction: Insulated / Ungrounded (standard) or Grounded to sheath
• Mounting & Fitting: Bayonet Cap (Bajonettkappe) internal diameter standard Ø12 mm, Ø12.2 mm, Ø14 mm, Ø15 mm
• Compression Spring: High-resilience stainless steel spring rated up to +400 °C
• Extension Lead Wire: High-temperature fiberglass or PTFE insulated conductors with overall Stainless Steel Wire Braid (SS Armor)
• Cable & Sheath Lengths: Fully customizable to customer mold tool drawing specifications
• Quality Standards & Approvals: DIN EN 60584, ISO 9001, Certificate of Origin (100% Made in Germany)