Memmert INplus Dual-Display Forced-Air Incubator

Overview

The Memmert INplus Dual-Display Incubator is an ISO 13485-certified, CE-marked laboratory incubator engineered for precision temperature control in life science research, pharmaceutical quality control, clinical diagnostics, and food microbiology applications. Unlike forced-air incubators that rely on high-velocity internal circulation—risking desiccation of sensitive biological samples—the INplus operates primarily in natural convection mode to preserve sample integrity. Its core thermal architecture features a triple-walled stainless steel chamber with vacuum-insulated sidewalls and a microprocessor-controlled Peltier-assisted heating system, enabling stable setpoint maintenance within ±0.3 °C across the full operating range (20–80 °C) under load. The dual-display interface provides simultaneous real-time monitoring of chamber temperature and sterilization cycle status, supporting GLP-compliant documentation workflows.

Key Features

• Natural convection design minimizes air velocity inside the chamber (<0.1 m/s), eliminating evaporative stress on cell cultures, agar plates, enzyme assays, and hydrated tissue specimens.
• Adjustable fan speed (10%–100% in 10% increments) enables controlled airflow modulation for applications requiring mild homogenization without compromising moisture retention.
• Integrated fresh-air preheating system routes incoming ambient air through a dedicated thermal buffer zone before chamber entry—preventing transient temperature dips and ensuring process continuity during continuous ventilation.
• High-temperature dry-heat sterilization cycle: programmable 160 °C hold for 4 h, validated per DIN 58946-5 and EN 285 for depyrogenation of chamber surfaces and shelving.
• Dual high-resolution LCD displays with tactile keypad support independent viewing of active temperature, setpoint, elapsed time, and sterilization phase—critical for multi-user labs and audit-ready operations.
• Chamber construction: electropolished 316L stainless steel interior with seamless welded corners; exterior: powder-coated steel with reinforced double-glazed door for thermal stability and visual monitoring.

Sample Compatibility & Compliance

The INplus series accommodates standard microbiological vessels—including Petri dishes (up to 150 mm diameter), test tubes (13–25 mm), multiwell plates (6–96-well), and culture flasks (T25–T225)—without requiring airflow adapters or humidity trays. Its low-turbulence environment meets requirements for USP /, ISO 7218, and EU GMP Annex 1 for microbial enumeration and sterility testing. All models comply with IEC 61010-1 (Safety Requirements for Electrical Equipment) and IEC 61326-1 (EMC for Laboratory Instruments). Data logging functionality supports 21 CFR Part 11 compliance when paired with Memmert’s optional LabSoft software and digital signature module.

Software & Data Management

While standalone operation requires no PC connection, the INplus is fully compatible with Memmert LabSoft v5.2+ for remote configuration, real-time graphing, and automated report generation (PDF/CSV). Audit trail logs include user ID, timestamp, parameter changes, alarm events, and sterilization cycle metadata—with tamper-proof encryption and configurable retention policies. Optional Ethernet/Wi-Fi modules enable integration into centralized LIMS environments and support SNMP-based network monitoring for facility-wide thermal asset management.

Applications

• Microbial growth studies (aerobic/anaerobic bacteria, yeasts, molds) per ISO 4833-1 and AOAC 977.27
• Stability testing of pharmaceutical intermediates and final dosage forms under ICH Q1A(R2) long-term/accelerated conditions
• Enzyme activity assays requiring strict thermal constancy and minimal dehydration artifacts
• Seed germination and plant tissue culture where ambient RH preservation is critical
• Incubation of ELISA plates, Western blot membranes, and immunohistochemistry slides prior to detection steps
• Validation of cleaning procedures via bioburden recovery in medical device manufacturing (ISO 11737-1)

FAQ

Is the INplus suitable for CO₂-sensitive applications?
No—this model does not integrate CO₂ control or humidification systems. For cell culture requiring pH stabilization, consider the Memmert CO₂ Incubator Series (e.g., IPPplus).
Can the sterilization cycle be validated with external thermocouples?
Yes—each unit includes a calibrated Pt100 sensor port (DIN EN 60751 Class A) for third-party validation per VDI/VDE 2627 and EU GMP Annex 15.
What is the maximum allowable load for thermal uniformity compliance?
Uniformity remains within ±0.5 °C (at 37 °C) with up to 80% chamber volume occupied by standard stainless steel shelves and typical labware loads, as verified in factory acceptance testing reports.
Does the INplus support password-protected parameter locking?
Yes—four-tier user access levels (Operator, Technician, Supervisor, Administrator) are enforced via alphanumeric passwords and optional RFID card authentication.
Are calibration certificates included with shipment?
A factory-issued ISO/IEC 17025-accredited calibration certificate (covering temperature accuracy and uniformity at 37 °C and 55 °C) is provided with each unit; on-site recalibration services are available globally through Memmert’s certified service network.