IKA Dry Block Heater 3

Overview

The IKA Dry Block Heater 3 is a precision-engineered dry bath incubator designed for reproducible, contact-based thermal control of small-volume samples in research and quality control laboratories. Unlike water baths, this metal block heater eliminates contamination risks and evaporation concerns by using solid-state aluminum heating blocks with optimized thermal mass and uniform heat distribution. It operates on the principle of conductive heat transfer—where thermal energy is transferred directly from the calibrated aluminum block to sample vessels via physical contact—ensuring rapid equilibration and minimal temperature gradients across the block surface. Engineered for applications requiring strict thermal consistency—such as enzyme kinetics, PCR setup, cell culture pre-warming, immunoassay incubation, and thermal denaturation studies—the Dry Block Heater 3 delivers stable setpoint control within ±0.2 °C at physiologically relevant temperatures (e.g., 37 °C), meeting the thermal stability requirements of ISO/IEC 17025-accredited testing environments.

Key Features

• Three independently configurable, interchangeable aluminum heating blocks—each precisely machined to accommodate standardized labware including 0.2 mL and 0.5 mL PCR tubes, 96-well microplates, Greiner tubes, cuvettes, and 12–15 mm diameter test tubes.
• Integrated PT-1000 external temperature sensor port enabling direct-in-vessel temperature monitoring and closed-loop feedback control—critical for method validation under GLP or GMP frameworks.
• Digital LED display with real-time temperature readout and timer status; intuitive rotary encoder interface for precise parameter entry without membrane-button wear.
• Programmable countdown timer with adjustable range from 1 second to 99 hours 59 minutes—supports unattended operation for extended incubation protocols.
• Dual-stage safety architecture: adjustable operational limit plus fixed 150 °C hardware cut-off circuit, compliant with DIN 12 878 and IEC 61010-1 safety standards.
• Robust aluminum housing and IP21-rated enclosure ensure durability and protection against incidental splashes and particulate ingress in shared laboratory spaces.
• Acoustic end-of-cycle alert provides non-visual notification—essential in high-noise or multi-instrument environments where visual monitoring is impractical.

Sample Compatibility & Compliance

The Dry Block Heater 3 supports broad sample container compatibility through its modular block system. Standard configurations include blocks for 0.2 mL PCR strips (8 × 12 format), 96-well plates (flat-bottom or U/V well), 15 mL conical tubes, and custom-diameter inserts upon request. All blocks are manufactured from anodized aerospace-grade aluminum (EN AW-6060), ensuring corrosion resistance, thermal homogeneity, and long-term dimensional stability. The device complies with DIN 12 878 for laboratory heating equipment, carries CE marking per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and meets RoHS 2011/65/EU restrictions on hazardous substances. Its fixed safety cutoff and traceable temperature accuracy support audit readiness for FDA 21 CFR Part 11–aligned workflows when paired with validated SOPs and calibration records.

Software & Data Management

While the Dry Block Heater 3 operates as a standalone instrument without embedded data logging or PC connectivity (no RS-232 or USB ports), it is fully compatible with external calibration and verification protocols. Laboratories may integrate it into electronic lab notebook (ELN) systems via manual entry or barcode-scanned parameter logs. The external PT-1000 sensor interface allows connection to third-party dataloggers (e.g., Testo 176 T4, Omega OM-DAQPRO-5300) for time-stamped temperature profiling—enabling full traceability required for ISO 17025 clause 7.7 (measurement uncertainty) and USP analytical instrument qualification (AIQ). Routine calibration is recommended per ASTM E2251–22 using NIST-traceable reference thermometers.

Applications

• Thermal activation of restriction enzymes and ligases prior to molecular cloning workflows.
• Pre-heating media and reagents for mammalian cell culture to avoid thermal shock during passaging.
• Controlled DNA denaturation and renaturation in hybridization protocols—including fluorescence in situ hybridization (FISH) slide processing.
• Standardized clotting time assays (e.g., PT, aPTT) and urea hydrolysis kinetics in clinical chemistry.
• Boiling point and melting point determination per ASTM D1142 and ISO 7884–2, respectively.
• Accelerated stability testing of formulations under defined thermal stress conditions (ICH Q1A).

FAQ

Does the Dry Block Heater 3 support remote control or data export?
No—this model lacks digital communication interfaces (RS-232, USB, Ethernet) and does not support automated data capture. It is intended for manual, operator-supervised use.

Can I use non-IKA heating blocks with this unit?
Only IKA-certified blocks (e.g., SBH 3, SBH 12, SBH 96) are mechanically and thermally validated for use with the Dry Block Heater 3; third-party blocks may compromise temperature uniformity and void warranty coverage.

What is the recommended calibration frequency?
Annual calibration is advised for routine QC use; more frequent verification (e.g., quarterly) is recommended in regulated environments or after mechanical impact or prolonged high-temperature operation.

Is the unit suitable for use inside a CO₂ incubator or cold room?
No—it is rated for ambient operation only (5–40 °C, ≤80 % RH); placement in controlled-environment chambers may impair thermal regulation and violate IP21 environmental specifications.