DRETOP ZDP-9052 Electric Constant Temperature Incubator

Overview

The DRETOP ZDP-9052 Electric Constant Temperature Incubator is a precision-engineered, benchtop laboratory incubator designed for stable, repeatable thermal environments in life science applications. It operates on the principle of resistive heating via embedded electric heating elements distributed uniformly across the inner chamber walls, combined with natural convection airflow to achieve thermal equilibrium without mechanical fans—minimizing vibration and contamination risk. This architecture makes it particularly suitable for non-agitated microbiological culture, enzyme activity assays, cell maintenance, and long-term stability testing where airflow-induced desiccation or shear stress must be avoided. The unit is calibrated and validated for operation across a wide working range—from ambient +2°C up to 65°C—with optimized thermal inertia and recovery time following door openings. Its robust construction and ISO-compliant design support routine use in GLP-compliant laboratories, academic teaching labs, and QC environments in pharmaceutical, food safety, and agricultural research settings.

Key Features

• Digitally controlled PID temperature regulation with 0.1°C resolution and ±0.5°C control accuracy ensures reproducible setpoint adherence over extended periods.
• Natural convection system eliminates fan-induced turbulence and airborne particulate redistribution—critical for static cultures and low-biomass inoculations.
• Stainless steel interior chamber (304 grade) with fully removable, height-adjustable shelves enables thorough cleaning, autoclaving compatibility, and flexible load configuration.
• Double-door observation window: outer magnetic seal door with thermal insulation and inner tempered glass panel reduces heat loss while maintaining visual monitoring integrity.
• Intelligent safety logic includes programmable high-temperature cutoff, automatic restart after power interruption, and non-volatile memory retention of user-defined parameters.
• Ergonomic front-panel LCD interface displays real-time temperature, setpoint, elapsed time, and system status—no software installation required for basic operation.
• Heating elements consist of high-stability etched foil heaters integrated into the chamber wall structure, delivering rapid warm-up (<30 min to 37°C from 25°C) and uniform thermal distribution (±1.0°C at 37°C, empty).

Sample Compatibility & Compliance

The ZDP-9052 accommodates standard Petri dishes (up to 150 mm), multi-well plates (6–96-well), test tubes (13–18 mm OD), and small flasks (≤500 mL). Its 50 L internal volume supports simultaneous processing of multiple sample types under identical thermal conditions. The unit complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets material biocompatibility requirements per ISO 10993-5 for short-term contact with biological samples. While not certified for sterile processing, its smooth, crevice-free stainless steel interior and absence of internal fasteners facilitate validated cleaning protocols aligned with FDA-recommended practices for non-sterile lab equipment. Optional accessories—including RS485 serial interface, independent over-temperature limiter, and UV-C germicidal lamp module—enable integration into audit-ready workflows compliant with 21 CFR Part 11 data integrity expectations when paired with validated third-party logging software.

Software & Data Management

The base model operates independently via its onboard digital controller; no PC or proprietary software is required for routine incubation. For traceable recordkeeping, optional RS485 communication allows connection to external SCADA systems or LabVIEW-based acquisition platforms. When equipped with the optional color touchscreen controller (ZDP-Touch v2.1), users gain access to event-driven logging (door open/close, alarm triggers), up to 10 programmable temperature profiles, and USB export of timestamped temperature logs in CSV format. All logged data include operator ID fields, instrument serial number, and firmware version—supporting ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) during regulatory inspections.

Applications

• Bacterial and fungal colony propagation (e.g., E. coli, S. aureus, Candida albicans) at standardized temperatures (30–37°C).
• Enzyme kinetics studies requiring stable thermal baselines for Michaelis-Menten analysis.
• Seed germination and plant tissue culture under defined non-photoperiodic conditions.
• Accelerated stability testing of reagents, vaccines, and diagnostic kits per ICH Q1A(R2) guidelines.
• Environmental simulation for aquatic microbiology (e.g., mesophilic wastewater isolates at 28–35°C).
• Pre-incubation of ELISA plates and immunoblot membranes prior to assay development.

FAQ

What is the recommended calibration frequency for the ZDP-9052?
Annual calibration using NIST-traceable reference thermometers is advised for GLP/GMP environments; semi-annual verification is sufficient for academic or industrial R&D use.
Can this incubator be used for CO₂-sensitive applications?
No—this is a non-CO₂, ambient-air incubator. It lacks gas mixing, humidification, or pH control capabilities.
Is the interior humidity controlled?
Humidity is unregulated and will equilibrate with ambient lab conditions; typical RH ranges from 30–60% depending on room climate and door-opening frequency.
Does the unit support validation documentation (IQ/OQ/PQ)?
Yes—DRETOP provides factory-issued as-built drawings, electrical schematics, and a basic OQ protocol template compatible with ASTM E2500-13 guidance for equipment qualification.
What maintenance is required?
Monthly inspection of door gasket integrity and quarterly cleaning of exterior vents and chamber surfaces with 70% ethanol or approved disinfectants; no lubrication or filter replacement is necessary.