MKN CHP-80 Carbon Dioxide Incubator

Overview

The MKN CHP-80 Carbon Dioxide Incubator is a precision-engineered, water-jacketed environmental chamber designed for reliable long-term cultivation of mammalian cells, primary tissues, hybridomas, and sensitive microbial strains under tightly regulated physiological conditions. It operates on the principle of maintaining a stable CO₂–bicarbonate buffered environment—typically 5% CO₂ in air—to preserve extracellular pH (7.2–7.4) in standard bicarbonate-based culture media such as DMEM or RPMI-1640. The unit employs a dual-gas filtration system (CO₂ inlet + ambient air intake) to minimize particulate and organic contaminant ingress, while its fully welded stainless steel water jacket ensures thermal inertia, low temperature fluctuation, and high spatial uniformity across the working volume. Engineered for routine use in academic core facilities, biopharmaceutical QC labs, and contract research organizations (CROs), the CHP-80 meets foundational requirements for GLP-compliant cell culture workflows and supports ISO 13485-aligned device testing environments.

Key Features

• Water-jacketed thermal architecture providing superior temperature stability (±0.3°C at 37°C) and reduced sensitivity to ambient fluctuations compared to air-jacketed alternatives.
• Microprocessor-based digital controller with simultaneous real-time display of chamber temperature and CO₂ concentration; user-accessible calibration offsets for both parameters.
• Dual-stage CO₂ gas filtration: particulate pre-filter + activated charcoal post-filter, integrated into the CO₂ supply line to prevent oil vapor, moisture, and hydrocarbon carryover from cylinder or generator sources.
• Heated glass door with anti-condensation circuitry to eliminate fogging during frequent access—critical for uninterrupted microscopic observation and aseptic technique adherence.
• Electropolished 304 stainless steel interior with radius-rounded corners (R ≥ 15 mm) and seamless welds, facilitating complete decontamination via vaporized hydrogen peroxide (VHP) or liquid sporicidal agents.
• Independent audible/visual alarm system triggered by CO₂ deviation >±1%, temperature excursion beyond set limits, or door-open duration exceeding 60 seconds.

Sample Compatibility & Compliance

The CHP-80 accommodates standard tissue culture vessels including T-25/T-75 flasks, 6-/12-/96-well plates, Petri dishes, and roller bottles up to 500 mL. Its 80 L usable volume (500×400×400 mm internal) allows stacking of two full-height shelves without compromising airflow distribution. The incubator complies with IEC 61010-1:2010 safety standards for laboratory equipment and incorporates design elements aligned with FDA-recommended practices for cell therapy manufacturing environments—including traceable calibration logs, non-volatile parameter storage, and password-protected configuration access. While not certified to UL 61010-1 or CE Medical Device Directive (MDD) out-of-box, it supports validation protocols required for ISO/IEC 17025-accredited testing laboratories performing cell viability assays (e.g., ASTM E2924-13) or cytotoxicity screening per ISO 10993-5.

Software & Data Management

The embedded controller records timestamped temperature and CO₂ readings at 1-minute intervals and retains the last 30 days of data in non-volatile memory. Optional RS-232 or USB-to-serial interface enables connection to external data loggers or LIMS platforms for automated export of CSV-formatted datasets. Audit trail functionality includes operator ID tagging (via numeric PIN), event logging of all parameter changes, and detection of unauthorized door openings—supporting basic 21 CFR Part 11 readiness when paired with validated third-party software. No cloud connectivity or proprietary cloud platform is included; all data remains locally stored unless explicitly exported by authorized personnel.

Applications

• Sustained expansion of adherent and suspension mammalian cell lines (e.g., CHO, HEK293, A549) for recombinant protein production and viral vector manufacturing.
• Long-term maintenance of primary human dermal fibroblasts and mesenchymal stem cells under low-oxygen priming conditions (when coupled with optional O₂ module).
• Standardized bacterial culture for antibiotic susceptibility testing (AST) in clinical microbiology reference labs operating under CLSI guidelines.
• Embryonic stem cell passaging and neural progenitor differentiation requiring strict pH and thermal constancy over multi-day protocols.
• Stability studies of biologics formulated in cell-based delivery matrices under controlled humidity and CO₂ tension.

FAQ

What type of CO₂ sensor is used in the CHP-80, and is it factory-calibrated?
The unit employs a dual-beam infrared (NDIR) CO₂ sensor with built-in temperature and pressure compensation. It ships with NIST-traceable calibration certificates and supports user-initiated zero-point adjustment using certified 0% CO₂ gas.
Can the CHP-80 be validated for GMP environments?
Yes—the mechanical design, material certifications (EN 10088-1 stainless steel), and parameter logging capabilities support IQ/OQ/PQ execution per Annex 15 of the EU GMP Guide; however, final qualification requires site-specific risk assessment and documented protocol execution.
Is humidification active or passive, and how is relative humidity monitored?
Humidification is passive via natural evaporation from a removable stainless steel water pan; RH is not measured or controlled, but typical values range between 85–95% at 37°C with daily pan refills.
Does the water jacket require deionized water, and what is the recommended maintenance interval?
Deionized or distilled water is strongly recommended to prevent mineral scaling; water level should be inspected weekly and replenished as needed—full drain-and-refill every 6 months minimizes biofilm accumulation.
Are third-party service contracts available for extended warranty and preventive maintenance?
MKN authorizes qualified regional service partners for annual PM visits, calibration verification, and CO₂ sensor replacement; contact MKN Technical Support for partner referral in your country.