DRETOP ZDP-9902 Electric Constant Temperature Incubator

Overview

The DRETOP ZDP-9902 Electric Constant Temperature Incubator is a high-capacity, air-jacketed thermal incubation system engineered for stable, reproducible temperature maintenance in life science laboratories. It operates on the principle of direct resistive heating via distributed electric heating elements embedded within the chamber walls and outer jacket, enabling rapid thermal response and uniform heat distribution without forced-air circulation. Designed for applications requiring long-term, unattended operation—including microbial culture, cell propagation, enzyme assays, seed germination, and stability testing—the ZDP-9902 delivers precise thermal control across its full operating range (RT + 2°C to 65°C), with documented uniformity of ±1.5°C at 37°C under no-load conditions. Its robust stainless-steel interior, natural convection architecture, and electrostatically coated steel exterior ensure durability, chemical resistance, and compliance with standard laboratory environmental requirements.

Key Features

• Direct-heated air-jacketed design with perimeter-mounted heating film elements ensures rapid warm-up and minimal thermal gradient across the 1000 L chamber.
• Digital PID temperature controller with 0.1°C resolution and real-time display of setpoint, actual temperature, and elapsed time on a large LCD interface.
• Stainless-steel inner chamber with removable, height-adjustable stainless-steel shelves—optimized for autoclaving, chemical disinfection, and residue-free cleaning.
• Double-door observation window: inner tempered glass panel with magnetic door seal and outer insulated frame to minimize thermal loss and condensation.
• Corner-radius ergonomic design and powder-coated exterior enhance structural integrity and resistance to abrasion and corrosion in shared lab environments.
• Intelligent safety functions include over-temperature alarm with user-defined threshold, power-failure recovery mode, and non-volatile parameter memory retention.
• Energy-efficient heating modulation adjusts output dynamically during ramp-up and steady-state phases, reducing thermal overshoot and improving long-term stability.

Sample Compatibility & Compliance

The ZDP-9902 accommodates standard microbiological vessels (Petri dishes, flasks, multi-well plates, roller bottles) and larger-scale bioprocess containers up to 10 L volume. Its natural convection airflow eliminates vibration-sensitive disturbances—making it suitable for delicate suspension cultures and embryonic development studies. The unit meets general-purpose laboratory equipment standards per IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use). While not certified for ISO Class 5 cleanroom integration or GMP-grade validation out-of-the-box, its construction materials, traceable calibration capability, and optional RS485 interface support integration into GLP-compliant workflows. Optional UV germicidal irradiation module (upon request) enables periodic decontamination cycles aligned with USP environmental monitoring guidelines.

Software & Data Management

The base configuration features standalone operation with local data logging (time-stamped temperature readings stored internally for up to 30 days). Optional accessories expand connectivity and auditability: an RS485 serial interface enables integration with LabVantage, STARLIMS, or custom SCADA systems; a programmable controller supports multi-step temperature profiles; and a thermal printer provides hard-copy records for SOP adherence. All digital interfaces comply with FDA 21 CFR Part 11 requirements when deployed with validated third-party software platforms that enforce electronic signatures, audit trails, and role-based access control. Firmware updates are delivered via USB port with version-locking and checksum verification.

Applications

• Bacterial and fungal cultivation (e.g., E. coli, S. aureus, Aspergillus spp.) under standardized incubation protocols (ASTM D5585, ISO 8587).
• Mammalian and insect cell line maintenance where mechanical agitation must be avoided—such as primary neuron cultures or hybridoma expansion.
• Environmental simulation for agricultural research: seed viability testing, soil microbe activity assays, and pesticide degradation kinetics.
• Pharmaceutical stability studies per ICH Q1A(R2), including accelerated and intermediate condition storage (40°C/75% RH surrogate via dry-heat mode).
• Quality control in food safety labs: aerobic plate counts, coliform enumeration, and yeast/mold isolation per AOAC and ISO 6579 standards.
• Educational use in university teaching labs for microbiology, genetics, and biotechnology curricula requiring scalable, low-maintenance incubation infrastructure.

FAQ

What is the recommended calibration interval for the ZDP-9902?
We recommend annual calibration using NIST-traceable reference thermometers at three points (25°C, 37°C, and 55°C) in accordance with ISO/IEC 17025 laboratory practices.
Can the ZDP-9902 be used for CO₂-independent cell culture?
Yes—this model maintains only temperature and does not regulate CO₂ or humidity; it is appropriate for short-term maintenance of CO₂-bicarbonate-buffered media or for use with HEPES-buffered systems.
Is the chamber accessible for ISO 14644-1 Class 5 cleanroom installation?
No—while the interior finish is smooth and cleanable, the unit lacks HEPA filtration, positive pressure management, or static-dissipative construction required for cleanroom certification.
Does the incubator support remote monitoring via Ethernet or Wi-Fi?
Not natively—but the optional RS485 interface can be bridged to TCP/IP networks using industrial protocol converters (e.g., Modbus TCP gateways) compatible with common building management systems.
What is the maximum load weight per shelf?
Each adjustable stainless-steel shelf is rated for 15 kg uniformly distributed load; total chamber payload should not exceed 80 kg to preserve thermal uniformity and structural integrity.