MKN DHP-80 Temperature-Controlled Incubator

Overview

The MKN DHP-80 Temperature-Controlled Incubator is a benchtop dry heat incubation system engineered for precise, stable thermal environments in microbiological culture maintenance, cell line preservation, enzyme activity assays, and stability testing of pharmaceutical intermediates. Unlike humidity-controlled or CO₂-incorporated incubators, the DHP-80 employs an air-jacketed external heating architecture—eliminating condensation risks and minimizing thermal overshoot during setpoint transitions. Its core operating principle relies on forced-air convection driven by a low-turbulence axial fan, ensuring uniform heat distribution across the chamber without direct radiant exposure to samples. Designed for routine use in quality control laboratories, academic core facilities, and GMP-aligned bioprocessing support labs, the DHP-80 delivers reproducible thermal conditions compliant with ISO 13408-1 Annex C requirements for non-sterile incubation processes.

Key Features

• PID digital microprocessor controller with real-time temperature display (0.1°C resolution) and programmable ramp-soak profiles
• Dual-layer tempered glass door with silicone gasket seal—maintains thermal integrity while enabling non-intrusive visual monitoring
• Externally mounted sheathed heating elements positioned within the air jacket cavity—prevents localized hot spots and eliminates sample surface desiccation
• Independent mechanical over-temperature safety cutoff (adjustable up to 70°C) acting as redundant protection layer per IEC 61010-1
• Smooth interior chamber constructed from electropolished stainless steel (AISI 304), facilitating decontamination via alcohol wipe or vaporized hydrogen peroxide (VHP)
• Low-noise operation (<45 dB(A) at 1 m) suitable for shared laboratory environments

Sample Compatibility & Compliance

The DHP-80 accommodates standard microbiological vessels including Petri dishes (90–150 mm), test tubes (13 × 100 mm, 16 × 150 mm), multi-well plates (6–96-well), and serum bottles (up to 500 mL). Its chamber geometry supports stacked shelving (three adjustable stainless-steel shelves included) with ≥60 mm vertical clearance between levels to ensure unimpeded airflow. The unit complies with ISO 13408-1:2018 Annex C for incubator qualification in aseptic processing environments and satisfies baseline instrumentation requirements under FDA 21 CFR Part 11 for electronic record integrity when paired with validated data logging software. It is not rated for humidified operation or biological containment; therefore, it is unsuitable for BSL-2+ applications requiring negative pressure or HEPA filtration.

Software & Data Management

While the DHP-80 operates as a standalone instrument with embedded firmware, optional RS-485 interface enables integration with centralized lab monitoring systems (e.g., LabVantage, Thermo Fisher SampleManager) via Modbus RTU protocol. When connected to MKN’s certified Data Logger Module (sold separately), the system generates time-stamped temperature logs compliant with ALCOA+ principles—ensuring attributable, legible, contemporaneous, original, accurate, complete, consistent, enduring, and available records. Audit trail functionality includes user login history, parameter change logs, and alarm event timestamps—all exportable in CSV or PDF format for regulatory submission.

Applications

• Maintenance of bacterial stock cultures (e.g., E. coli, Bacillus subtilis) at standardized temperatures (30°C, 37°C)
• Thermal stability assessment of diagnostic reagents and monoclonal antibody formulations
• Accelerated shelf-life studies per ICH Q1A(R2) guidelines using elevated temperature stress conditions
• Enzyme kinetics experiments requiring strict isothermal reaction environments
• Pre-incubation of agar plates prior to streaking or pour plating in clinical microbiology workflows
• Seed lot expansion protocols for fungal isolates used in agricultural biocontrol product development

FAQ

Is the DHP-80 suitable for CO₂-dependent cell culture?
No. This is a dry-heat-only incubator with no gas regulation capability. For mammalian cell culture, refer to MKN’s CO₂ Series (e.g., DHP-CO₂-150).
Can humidity be added retroactively?
No. Humidity control requires integrated steam generator, water reservoir, and RH sensor hardware—none of which are present in the DHP-80 platform.
What calibration standards does it support?
The unit accepts NIST-traceable PT100 probe calibration; MKN provides Certificate of Conformance with initial factory verification at 37°C and 55°C per ISO/IEC 17025.
Is it compatible with 110 VAC power supplies?
No. The DHP-80 is configured exclusively for 220 VAC ±10%, 50 Hz operation. A step-down transformer is not recommended due to thermal load instability risks.
Does it meet UL or CE safety certification?
Yes. Certified to IEC 61010-1:2010 + A1:2019 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and carries CE marking for EMC Directive 2014/30/EU and LVD Directive 2014/35/EU.