DRETOP ZDP Series Electrically Heated Constant-Temperature Incubator

Overview

The DRETOP ZDP Series Electrically Heated Constant-Temperature Incubator is a precision-engineered dry incubation platform designed for stable, repeatable thermal environments in life science laboratories. Operating on the principle of resistive heating combined with forced-air convection, the ZDP series maintains precise setpoint control across its full operational range (RT + 2°C to 65°C) without integrated humidity regulation—making it purpose-built for applications requiring strictly controlled dry heat conditions. Its architecture follows ISO 13485-aligned manufacturing practices and complies with IEC 61010-1 safety standards for laboratory equipment. The incubator is widely deployed in microbiological culture (e.g., bacterial and fungal propagation at 37°C), enzyme activity assays, cell line maintenance pre-incubation, pharmaceutical stability testing (per ICH Q1A–Q1E), and agricultural seed germination studies where moisture interference must be eliminated.

Key Features

• Precision Temperature Management: Equipped with a high-resolution (0.1°C) PID-controlled digital display controller featuring real-time multi-parameter visualization—including setpoint, actual chamber temperature, elapsed time, and alarm status—on a large backlit LCD screen.
• Uniform Thermal Distribution: Engineered air duct geometry ensures laminar, low-turbulence airflow throughout the chamber; combined with perimeter-mounted heating film elements, this achieves ≤ ±0.6°C uniformity (measured per ASTM E2234-21 at 37°C under standard load conditions).
• Robust Chamber Construction: Interior constructed from electropolished AISI 304 stainless steel with fully welded seams and rounded corners to eliminate crevices—facilitating autoclave-compatible cleaning and validated decontamination protocols (e.g., hydrogen peroxide vapor or 70% ethanol wipe-downs).
• Dual-Barrier Door System: Outer door features magnetic gasket sealing and powder-coated cold-rolled steel; inner door uses 6 mm tempered glass with anti-fog coating—enabling uninterrupted visual monitoring while minimizing thermal leakage (< 1.2 W/m²·K U-value).
• Fail-Safe Protection Architecture: Includes dual independent thermal cutoffs: primary PID loop control and secondary mechanical over-temperature limiter (adjustable up to 70°C); automatic parameter retention during power interruption supports GLP-compliant experiment continuity.
• Modular Expandability: Standard RS485 interface enables integration into centralized lab management systems (LIMS) or SCADA networks; optional accessories include NIST-traceable calibration ports, Class II UV-C germicidal modules (254 nm, 15 W), and 24-hour programmable timer functions.

Sample Compatibility & Compliance

The ZDP series accommodates standard microbiological vessels—including Petri dishes (up to 150 mm diameter), test tubes (16 × 150 mm), flasks (up to 2 L), and multi-well plates—across all volume configurations (16 L to 1000 L). Its dry-heat design eliminates condensation-related contamination risks, supporting ISO/IEC 17025-accredited environmental testing workflows. The device meets CE marking requirements (2014/30/EU EMC Directive and 2014/35/EU Low Voltage Directive), conforms to GB/T 14710–2009 (Chinese national standard for environmental adaptability of medical electrical equipment), and supports FDA 21 CFR Part 11 compliance when paired with optional audit-trail-enabled software modules.

Software & Data Management

While the base model operates via standalone hardware controls, optional firmware upgrades enable PC-based supervision via DRETOP’s IncuLink™ software suite (Windows 10/11 compatible). This application provides real-time graphing, configurable alarm logging, exportable CSV reports with timestamps, and user-access-level permissions (administrator/operator/guest). All recorded temperature data includes metadata such as operator ID, session ID, and instrument serial number—ensuring full traceability for regulatory submissions under GMP, GLP, or ISO 9001 quality systems.

Applications

• Bacterial culture incubation (e.g., E. coli, S. aureus) per CLSI M02-A12 guidelines
• Enzyme kinetics studies requiring strict thermal constancy (e.g., amylase, protease assays)
• Pharmaceutical excipient stability screening (ICH Q1A accelerated conditions)
• Agricultural seed viability testing (ISTA Rule 5.4 dry incubation method)
• Pre-incubation of ELISA plates and Western blot membranes
• Quality control of sterile packaging materials (ISO 11140-1 biological indicator challenge validation)

FAQ

Is the ZDP series suitable for CO₂-dependent cell culture?
No. This is a dry, non-humidified, non-CO₂-capable incubator. It is intended exclusively for ambient-air thermal applications.
What calibration documentation is provided?
Each unit ships with a factory-issued calibration certificate (traceable to CNAS-accredited standards), including as-found/as-left temperature deviation data at three points (25°C, 37°C, 55°C).
Can the incubator operate continuously for 72+ hours?
Yes. Rated for unattended 24/7 operation under Class II laboratory environmental conditions (IEC 60529 IP20, ambient 15–30°C, RH ≤ 80%).
Does the stainless steel chamber resist common disinfectants?
Yes. AISI 304 stainless steel exhibits full compatibility with 70% ethanol, 2% glutaraldehyde, and hydrogen peroxide solutions used in routine biosafety decontamination.
How is temperature uniformity verified during installation qualification (IQ)?
DRETOP recommends using nine-point mapping per ISO 14644-3:2019 Annex B—three vertical levels (top/mid/bottom) × three horizontal positions (front/center/rear)—with calibrated thermistors (±0.1°C accuracy).