MEMMERT INE600 Natural Convection Incubator

Overview

The MEMMERT INE600 is a high-precision, natural convection incubator engineered for stable, reproducible temperature-controlled environments in life science laboratories. Unlike forced-air systems, the INE600 relies on gravity-driven air movement—eliminating turbulence, shear stress, and mechanical vibration that may compromise sensitive biological samples such as cell cultures, microbiological assays, or enzyme kinetics studies. Its thermal architecture integrates four-sided, full-surface heating elements within a fully insulated stainless-steel chamber (material 1.4301 / ASTM 304), ensuring uniform heat distribution and rapid thermal recovery after door openings. The chamber volume of 256 L accommodates up to seven adjustable stainless-steel perforated shelves (max. load 30 kg per shelf; total internal load capacity 80 kg), with precise temperature control spanning 20 °C to 70 °C (standard operating range) and extended capability up to 250 °C (optional U/S configuration). Designed for GLP-compliant workflows, the INE600 meets DIN 12880 requirements for temperature homogeneity and stability, delivering ≤ ±0.6 °C uniformity at 37 °C and ≤ ±0.05 °C temporal stability under steady-state conditions.

Key Features

• Microprocessor-based PID fuzzy logic controller with integrated self-diagnostic system and error indication
• Dual A-class Pt100 temperature sensors (4-wire circuitry) for redundant monitoring and fault-tolerant operation
• 7-day programmable timer with real-time clock; temperature ramping, hold, delay start, and cycle repetition (1–99× or infinite)
• Four-segment digital timer (1 min – 999 h per segment) supporting multi-step thermal protocols
• GLP-compliant internal data logger with 1024 kB circular memory — stores setpoints, actual values, timestamps, and error logs for ~6 months at 1-min intervals
• Triple-layer safety architecture: (1) electronic overtemperature protection (TWW, Class 3.1, cutoff at +3 °C above setpoint), (2) independent mechanical thermostat (TB, cutoff at +10 °C above max chamber temperature), and (3) solid-state switching with fail-safe shutdown
• Stainless-steel exterior (back panel zinc-coated steel), double-locking insulated glass door with four-point adjustment, and seamless deep-drawn interior chamber
• RS232 interface with free Celsius 2007 software for remote programming, real-time monitoring, and export of audit-trail-ready CSV reports

Sample Compatibility & Compliance

The INE600 supports a broad spectrum of life science applications requiring gentle, non-turbulent thermal conditioning—including mammalian and insect cell culture, bacterial growth assays, BOD testing, enzyme activity studies, and stability testing of biologics. Its natural convection design avoids desiccation and convective cooling artifacts common in fan-assisted units, making it particularly suitable for long-term incubation of low-volume or open-vessel samples (e.g., Petri dishes, multiwell plates, test tubes). The unit complies with DIN 12880 (incubators and drying ovens), EN 61010-1 (safety requirements for laboratory equipment), and supports adherence to ISO/IEC 17025, USP , and FDA 21 CFR Part 11 when used with Celsius 2007’s audit-trail and electronic signature features. A certified 37 °C calibration certificate (traceable to national standards) is included with each unit.

Software & Data Management

Celsius 2007 — MEMMERT’s proprietary Windows-compatible software — enables full parameter configuration, unlimited ramp/soak profiles, and synchronized logging of temperature, airflow settings (where applicable), and event markers. It supports electronic signatures, user access levels (admin/operator), and automated report generation compliant with GLP documentation requirements. Data exports are timestamped, digitally signed, and structured for integration into LIMS or ELN platforms. The built-in 1024 kB ring buffer provides local traceability without external hardware; optional parallel printer interface (PCL3-compatible) allows hardcopy archiving. Firmware updates and configuration backups can be performed via USB adapter (available separately).

Applications

• Cell culture incubation (adherent and suspension lines) under physiological temperatures (37 °C ± 0.1 °C)
• Microbiological growth studies (e.g., E. coli, yeast, molds) requiring strict thermal consistency
• Biochemical assay development where temperature-induced conformational drift must be minimized
• Stability testing of diagnostic reagents, vaccines, and therapeutic proteins per ICH Q1 guidelines
• Environmental simulation for ecotoxicology and soil respiration assays
• Pre-incubation of media, buffers, and enzymatic reaction mixtures
• Long-duration developmental biology experiments (e.g., embryoid body formation, organoid maturation)

FAQ

What is the temperature uniformity specification at 37 °C?
The INE600 achieves ≤ ±0.6 °C spatial uniformity across the working volume at 37 °C, measured per DIN 12880 using nine sensor positions.
Does the unit support 21 CFR Part 11 compliance?
Yes — when operated with Celsius 2007 software configured with user authentication, audit trail logging, and electronic signatures, the system meets core technical requirements for Part 11 compliance.
Can the incubator be validated for GMP environments?
Absolutely — the dual Pt100 sensors, GLP-compliant data logging, calibration certificate, and documented traceability path support IQ/OQ/PQ protocols in regulated pharmaceutical and clinical labs.
Is external ventilation or exhaust ducting required?
No — the INE600 features an adjustable throttle valve on its rear exhaust port, allowing passive air exchange control without mandatory external ducting. Optional servo-controlled fresh-air mixing is available on UF/SF variants.
What is the maximum operating temperature for standard configuration?
The standard INE600 model is rated for continuous operation from 20 °C to 70 °C. Higher-temperature variants (INE600 U/S) extend the range to 250 °C (with optional upgrade to 300 °C).