Maykno DHP-270 Temperature-Controlled Incubator

Overview

The Maykno DHP-270 Temperature-Controlled Incubator is an entry-level, microprocessor-regulated laboratory incubator engineered for stable thermal environments in routine biological and microbiological applications. Designed for continuous operation under standard ambient conditions (15–30 °C, ≤70% RH), it employs resistive external heating—where heating elements are physically isolated from the chamber interior—to eliminate thermal overshoot, localized hot spots, and condensation-induced contamination risks. Unlike forced-air or water-jacketed systems, this convection-driven design prioritizes simplicity, energy efficiency, and operational safety for non-critical culture maintenance tasks. It is not equipped with active humidity control, making it suitable for applications where moisture management is either externally regulated or not required—such as short-term storage of bacterial stock cultures, enzyme stability assays, or pre-incubation steps prior to downstream processing.

Key Features

• Microprocessor-based digital temperature controller with LED display, offering setpoint resolution of ±0.1 °C and real-time monitoring capability.
• Dual-pane tempered glass observation door with silicone-sealed perimeter gasket—minimizes thermal leakage while enabling non-intrusive visual inspection without opening the chamber.
• Externally mounted heating system ensures uniform heat distribution across the chamber floor and sidewalls; eliminates direct radiant exposure to samples and prevents thermal shock during startup or recovery.
• Interior constructed from high-grade stainless steel (AISI 304), resistant to corrosion from repeated alcohol wiping and mild disinfectants—compliant with ISO 13485 cleanroom-compatible surface requirements.
• Adjustable, perforated stainless-steel shelving (standard configuration: 2 shelves, load capacity: 15 kg per shelf) allows flexible arrangement of Petri dishes, flasks, and multiwell plates.
• Over-temperature protection circuit with independent mechanical cut-off (set at 70 °C) provides fail-safe shutdown in case of controller failure or sensor drift.

Sample Compatibility & Compliance

The DHP-270 supports standard microbiological and cell biology sample formats including agar plates (90 mm and 150 mm), Erlenmeyer flasks (up to 2 L), roller bottles, and stacked tissue culture vessels. Its static air circulation design is appropriate for non-suspended, low-metabolism cultures such as lyophilized bacterial stocks, fungal spore preparations, and plant callus tissues. While not certified for GMP manufacturing environments, the unit meets general laboratory safety standards per IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use). It is compatible with GLP documentation workflows when paired with external calibration logs and periodic verification using NIST-traceable PT100 probes.

Software & Data Management

This incubator operates as a standalone analog-digital hybrid device with no embedded data logging, USB interface, or network connectivity. Temperature setpoint and current reading are displayed locally via a 4-digit LED screen. For regulatory traceability, users are advised to integrate external validation tools—including Class II calibrated thermistors (e.g., Fluke 1523/1524) and manual logbooks aligned with FDA 21 CFR Part 11 Annex 11 principles (where handwritten entries are supplemented with dated, signed, and version-controlled records). Optional third-party data loggers (e.g., Omega OM-DAQPRO-5300) may be installed inside the chamber via a dedicated feedthrough port (requires user-modification and validation).

Applications

• Maintenance of reference microbial strains (e.g., ATCC® cultures) under defined thermal conditions prior to subculturing.
• Incubation of diagnostic agar plates for colony isolation in clinical microbiology labs.
• Pre-warming of reagents, buffers, and media in molecular biology workflows (e.g., restriction digests, ligations).
• Controlled-temperature storage of hybridoma supernatants or purified antibodies before purification or freezing.
• Agricultural seed germination trials requiring consistent ambient warmth without photoperiod or CO₂ modulation.
• Stability testing of pharmaceutical excipients under accelerated thermal conditions (per ICH Q1A guidelines, when used within validated temperature bands).

FAQ

Does the DHP-270 include humidity control?

No. This model is a temperature-only incubator. Humidity regulation requires external humidification chambers or separate environmental rooms.
Is the unit suitable for mammalian cell culture?

It is not recommended for long-term adherent or suspension cell culture due to lack of CO₂ control, humidity feedback, and turbulent airflow optimization.
What calibration standards apply to this instrument?

Users must perform quarterly performance verification using ISO/IEC 17025-accredited dry-block calibrators or portable reference thermometers traceable to NIST.
Can the incubator be validated for ISO 13485 or GMP use?

Yes—subject to user-executed IQ/OQ protocols, documented sensor mapping, and integration into a broader quality management system.
What is the warranty coverage period?

One (1) year limited warranty covering parts and labor for defects in materials and workmanship under normal laboratory use conditions.