IKA Dry Block Heater 1 – Precision Metal Bath for Laboratory Sample Heating

Overview

The IKA Dry Block Heater 1 is a compact, digitally controlled metal bath engineered for precise, uniform thermal management of small-volume laboratory samples. Utilizing direct conductive heating via a solid aluminum heating block, it delivers rapid thermal equilibration and exceptional temperature stability—critical for applications demanding reproducible thermal profiles without solvent evaporation or condensation artifacts. Unlike water baths, this dry-block design eliminates contamination risks, maintenance overhead, and cross-sample interference, making it ideal for molecular biology, clinical diagnostics, and quality control laboratories operating under GLP or ISO 17025 frameworks. Its core architecture adheres to DIN 12 878 standards for laboratory heating devices, ensuring traceable performance across ambient +5 °C to 120 °C—with certified accuracy of ±0.2 °C at physiologically relevant setpoints (e.g., 37 °C) and ±0.4 °C at elevated temperatures (e.g., 60 °C). The integrated PT1000 sensor interface enables real-time, sample-internal temperature feedback—bypassing block-surface lag and enabling true sample-centric control.

Key Features

• Precision digital PID temperature control with intuitive LED display and tactile keypad navigation
• Single anodized aluminum heating block (96 × 76 mm) optimized for thermal homogeneity and corrosion resistance
• External PT1000 probe compatibility for direct sample-in-tube or sample-in-well temperature monitoring
• Programmable countdown timer (1 second to 99 hours 59 minutes) with audible end-of-cycle alert
• Dual-stage safety system: adjustable operational limit + fixed 150 °C hardware cut-off circuit
• IP21-rated enclosure (DIN EN 60529) for protection against vertically falling drips and solid objects >12.5 mm
• Energy-efficient 165 W heating output with low thermal inertia for rapid ramp-up and minimal overshoot
• No USB or RS232 ports—designed for standalone, secure operation in regulated environments where data port restrictions apply

Sample Compatibility & Compliance

The Dry Block Heater 1 accommodates standard microcentrifuge tubes (0.2–2.0 mL), PCR strips, 96-well microplates (with optional adapter), Greiner Bio-One tubes, cuvettes, and capillary vials. Its flat, machined block surface ensures full-bottom contact for maximal heat transfer efficiency—particularly critical for DNA denaturation (94–95 °C), enzyme incubation (25–65 °C), and coagulation assays requiring strict thermal fidelity. Device compliance includes CE marking per EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU; RoHS 2011/65/EU conformance confirms absence of hazardous substances. While not FDA 21 CFR Part 11–certified out-of-the-box, its deterministic timer, non-volatile error logging (including overtemperature and sensor fault codes), and stable analog control loop support validation protocols required for GMP-aligned QC workflows.

Software & Data Management

This unit operates as a dedicated embedded instrument—no proprietary software, drivers, or cloud connectivity are required or supported. All operational parameters (setpoint, timer, status flags) are retained in non-volatile memory during power cycles. Error states—including E1 (sensor open-circuit), E2 (sensor short-circuit), and E3 (overtemperature)—are displayed numerically on the LED screen, facilitating immediate troubleshooting without diagnostic tools. The absence of network interfaces aligns with cybersecurity best practices for instruments deployed in closed-lab networks or facilities subject to HIPAA or GDPR-compliant infrastructure policies. Audit-ready documentation—including factory calibration certificates (traceable to DKD/DAkkS standards), electrical safety test reports, and mechanical drawings—is available upon request for IQ/OQ/PQ validation.

Applications

• Thermal activation of restriction enzymes and ligases in molecular cloning workflows
• Controlled DNA denaturation and renaturation in hybridization protocols (e.g., Southern/Northern blotting)
• Standardized incubation for ELISA, lateral flow immunoassays, and antigen-antibody binding kinetics
• Boiling point and melting point determination per ASTM E324 and ISO 787-19
• Cell culture pre-warming of media, sera, and reagents prior to aseptic handling
• Coagulation time assays (e.g., fibrinogen quantification, PT/INR calibration checks)
• Blood urea nitrogen (BUN) and creatinine assay thermal steps in clinical chemistry analyzers
• In situ hybridization (ISH) probe denaturation and hybridization incubation stages

FAQ

Does the Dry Block Heater 1 support multi-block configurations or interchangeable blocks?
No—this model features a single fixed aluminum block. Interchangeable blocks are available only on higher-tier IKA models (e.g., Dry Block Heater 3 or Thermomixer series).
Can the external PT1000 sensor be calibrated independently of the block sensor?
Yes—the device accepts third-party PT1000 probes meeting DIN EN 60751 Class A tolerance; users may perform two-point calibration using NIST-traceable reference thermometers.
Is the timer function programmable to repeat cycles automatically?
No—it supports only single-cycle countdown timing. Repeat sequences require manual reset or external PLC integration.
What is the maximum recommended load per well when using microplates?
For optimal thermal uniformity, fill all wells symmetrically; maximum recommended volume per well is 200 µL for 96-well plates to avoid edge effects and thermal gradient formation.
Does the unit include a validation certificate for ISO/IEC 17025 laboratories?
Factory calibration data is provided; full UKAS/DKD-accredited certification requires on-site verification by an accredited metrology lab—documentation templates for IQ/OQ are included in the user manual.