JUNKEN DRP-9162E Electric Constant Temperature Incubator

Overview

The JUNKEN DRP-9162E Electric Constant Temperature Incubator is a precision-engineered, air-jacketed incubation system designed for stable, reproducible thermal environments in microbiological culture, cell maintenance, enzyme activity studies, and long-term biological storage applications. Operating on the principle of passive thermal equilibrium via natural convection within an insulated air-jacketed chamber, the DRP-9162E eliminates forced-air turbulence that may disturb sensitive cultures or sedimentation-based assays. Its microprocessor-controlled PID regulation—implemented via a high-stability Pt100 platinum resistance sensor—ensures dynamic compensation for ambient fluctuations, load changes, and door-opening events. With a working temperature range from ambient +5°C to 65°C and a control accuracy of ±0.1°C, the unit meets foundational requirements for ISO/IEC 17025-compliant laboratories performing routine QC in pharmaceutical, food safety, and clinical microbiology workflows.

Key Features

• Air-jacketed thermal insulation architecture minimizes external heat transfer and improves energy efficiency while supporting uniform internal temperature distribution.
• Natural convection airflow design eliminates mechanical fans, reducing vibration, noise, and microbial cross-contamination risk—critical for non-agitated culture protocols.
• Digital PID microprocessor controller with touchscreen LCD interface enables intuitive parameter entry, real-time temperature logging, and multi-point calibration support.
• Integrated safety logic includes dual-stage over-temperature protection, sensor failure detection, automatic fault lockout, and audible/visual alarms compliant with IEC 61000-4 EMC immunity standards.
• Double-door configuration features a tempered glass inner door and insulated outer door, enabling continuous visual monitoring without compromising thermal stability or sterility integrity.
• Extended timer function (0–9999 minutes) supports unattended operation for overnight or multi-day incubation cycles; all user-defined parameters are retained after power interruption.

Sample Compatibility & Compliance

The DRP-9162E accommodates standard microbiological vessels—including Petri dishes, test tubes, flasks, and multi-well plates—within its 160 L stainless-steel chamber (500 × 500 × 650 mm internal). The 304 mirror-finish interior ensures corrosion resistance against repeated alcohol or disinfectant exposure, facilitating GLP-aligned cleaning validation. The unit conforms to GB/T 23795–2009 (Chinese national standard for electric incubators) and aligns with functional equivalency to ASTM E171 and ISO 2859-1 for environmental conditioning equipment used in quality assurance testing. While not certified to UL 61010-1 or IEC 61010-1 out-of-the-box, its electrical architecture (220 V ±10%, 50 Hz ±1 Hz, ≤380 W) permits integration into laboratory infrastructure meeting local regulatory voltage and grounding requirements.

Software & Data Management

The DRP-9162E operates as a standalone instrument with embedded firmware—no external PC or proprietary software required. All operational data (setpoint, actual temperature, elapsed time, alarm status) are displayed in real time on the high-contrast LCD panel. The system supports manual calibration offset adjustment (±9.9°C range) for traceable temperature display correction per ISO/IEC 17025 Clause 6.5.2. Although it lacks USB/Ethernet connectivity or audit-trail generation, its parameter memory and deterministic alarm behavior enable compliance with basic FDA 21 CFR Part 11 Annex 11 expectations when deployed in non-GMP research settings. For regulated environments requiring electronic records, third-party data loggers (e.g., calibrated thermistor-based USB probes) may be validated alongside the unit per GAMP5 guidance.

Applications

• Maintenance of bacterial, fungal, and yeast cultures at defined physiological temperatures (e.g., 30°C for Aspergillus, 35–37°C for E. coli or clinical isolates).
• Enzyme kinetics assays requiring stable thermal conditions over extended durations (e.g., amylase or protease activity profiling).
• Seed germination trials and plant tissue culture pre-incubation under controlled non-humidified conditions.
• Storage of reference strains, vaccine components, and diagnostic reagents where refrigerated or ambient storage is insufficient.
• Environmental simulation for stability testing of medical devices or packaging materials per ISO 11607-1 Annex B protocols.

FAQ

Does the DRP-9162E support humidity control?
No. This model is a dry-air, non-humidified incubator. Humidity management requires optional external humidification systems or alternative models with integrated steam generators.
Is the chamber volume verified per ISO 12777?
Chamber capacity (160 L) is nominal, derived from internal dimensions. For metrologically traceable volume validation, users should perform in-situ measurement using calibrated volumetric displacement methods.
Can the unit be validated for IQ/OQ/PQ protocols?
Yes—the DRP-9162E’s deterministic control architecture, documented sensor specifications, and repeatable thermal performance support qualification under ASTM E2500 and ISPE Baseline Guide principles when paired with external mapping probes and documented SOPs.
What is the recommended calibration frequency?
Per ISO/IEC 17025, calibration interval should be risk-based; typical practice is annual verification using NIST-traceable dry-block calibrators or PT100 reference probes across three chamber locations.
Is service documentation available in English?
Technical manuals, wiring diagrams, and spare parts lists are provided in bilingual (Chinese/English) format upon request for international customers.