Maykno DHP-80 Temperature-Controlled Incubator

Overview

The Maykno DHP-80 Temperature-Controlled Incubator is an entry-level, microprocessor-regulated convection incubator engineered for stable thermal environments in life science laboratories. Designed primarily for non-humidified applications—such as bacterial culture maintenance, cell line propagation, enzyme activity assays, and reagent storage—the DHP-80 employs resistive external heating elements combined with natural or forced-air circulation to minimize thermal overshoot and ensure consistent chamber temperature distribution. Its operational principle relies on proportional-integral (PI) temperature control logic integrated into a digital LED display interface, enabling repeatable setpoint stability under standard ambient conditions (15–30 °C, ≤70% RH). While not rated for humidity control or CO₂ regulation, the unit meets foundational requirements for GLP-compliant sample holding, routine microbiological incubation, and educational laboratory use where precise, low-drift thermal management is essential.

Key Features

• Microprocessor-based digital temperature controller with LED display and ±0.5 °C typical setpoint accuracy (at 37 °C, steady-state)
• Externally mounted heating system to prevent direct radiant exposure of samples and eliminate thermal overshoot during ramp-up
• Dual-layer tempered glass observation door with silicone-gasketed seal—minimizes heat loss while enabling visual monitoring without opening the chamber
• Stainless steel inner chamber and rounded internal corners for ease of cleaning and microbial contamination control
• Over-temperature protection circuit with independent mechanical safety cutoff (adjustable up to 60 °C)
• Compact footprint (W×D×H ≈ 450 × 450 × 550 mm) suitable for benchtop deployment in QC labs, teaching facilities, and small-scale research settings

Sample Compatibility & Compliance

The DHP-80 accommodates standard petri dishes (up to 150 mm), multi-well plates (6–96-well), culture flasks (T25–T75), and sterile tubes—provided total load does not obstruct airflow near the rear wall or ceiling-mounted heater assembly. It complies with general electrical safety standards IEC 61010-1 and GB 4793.1 for laboratory equipment. Although not certified to ISO 13485 or FDA 21 CFR Part 11, its control architecture supports basic audit trail documentation when paired with external data loggers (e.g., compliant with ASTM E2810 for incubator qualification). Users performing regulated work should conduct IQ/OQ/PQ validation per their internal SOPs and applicable guidelines such as USP for environmental control systems.

Software & Data Management

The DHP-80 operates via embedded firmware only—no PC connectivity, USB port, or proprietary software is included. All parameters are configured manually using front-panel push-button controls. Temperature setpoint, current chamber reading, and alarm status are displayed in real time. For laboratories requiring electronic recordkeeping, third-party USB or Bluetooth-enabled temperature data loggers (e.g., Omega OM-EL-USB-1-LCD or Testo 176 T4) may be installed inside the chamber with appropriate calibration traceability. The unit’s analog output signal (0–5 V or 4–20 mA optional upon request) allows integration into building management systems (BMS) or centralized lab monitoring platforms compliant with ISO/IEC 17025 Clause 5.9.

Applications

• Routine incubation of mesophilic bacteria (e.g., E. coli, S. aureus) at 30–37 °C
• Short-term storage of diagnostic reagents, antibodies, and lyophilized standards
• Pre-incubation of enzymatic reaction mixtures prior to spectrophotometric analysis
• Seed germination trials and plant tissue culture pre-conditioning (non-sterile setups)
• Quality control hold stations for raw materials in pharmaceutical excipient testing workflows
• Teaching labs supporting undergraduate microbiology, molecular biology, and biotechnology curricula

FAQ

Is the DHP-80 suitable for humidified or CO₂-dependent cell culture?
No. This model lacks integrated humidity generation, CO₂ sensors, or gas mixing capabilities. It is intended for ambient-humidity, air-atmosphere applications only.
Does the unit include calibration certification or NIST-traceable documentation?
Factory calibration is performed per internal QA protocol; however, no NIST-traceable certificate is supplied by default. Optional third-party calibration services (including ISO/IEC 17025-accredited reports) can be arranged separately.
What is the recommended validation frequency for GxP environments?
Per EU Annex 15 and WHO TRS 961, temperature mapping and performance qualification should be conducted initially, after relocation, following major maintenance, and at least annually—using calibrated thermistors placed at defined geometric locations within the chamber.
Can the DHP-80 be stacked or installed in enclosed cabinetry?
No. Minimum clearance of 10 cm on all sides—including rear and top—is required for proper convective cooling and electrical safety compliance.
Is firmware upgrade support available?
No. The embedded controller is fixed-function and not field-upgradable. Functional enhancements require hardware revision or replacement with newer-generation models (e.g., DHP-90 series with RS-485 Modbus support).