DLAB HB105-S2 Dual-Channel Digital Metal Block Heater

Overview

The DLAB HB105-S2 Dual-Channel Digital Metal Block Heater is an engineered thermal platform designed for precise, stable, and independent temperature control of two sample blocks simultaneously. Utilizing solid aluminum heating blocks with optimized thermal mass and conduction pathways, the instrument delivers rapid heat transfer and high spatial uniformity—critical for applications requiring reproducible incubation, enzymatic reactions, sample thawing, or reagent pre-warming. Its microprocessor-based PID temperature regulation system ensures dynamic compensation against ambient fluctuations and load-dependent thermal lag, achieving ±0.2°C uniformity across the block surface at 37°C—a performance benchmark aligned with ISO/IEC 17025-relevant thermal validation requirements for routine laboratory workflows. The unit operates within a calibrated range of ambient +5°C to 105°C, supporting both low-temperature stabilization and high-temperature activation protocols without vapor-phase evaporation concerns typical of water baths.

Key Features

• Dual independent heating channels—each with dedicated digital display, setpoint control, and timer—enabling concurrent processing of two distinct thermal protocols.
• High-resolution LED display showing real-time block temperature and countdown timer with audible alert upon completion or target attainment.
• Integrated over-temperature protection circuitry that automatically cuts power if internal sensor readings exceed safe operational limits, complying with IEC 61010-1 Class II safety standards.
• Optional PT1000 external probe input for direct sample-in-vessel temperature monitoring, enabling closed-loop feedback control beyond block surface calibration.
• Removable insulating cover minimizes convective and radiative heat loss, improving energy efficiency and enhancing temperature stability—particularly during extended incubations (>2 h).
• Compact footprint (290 × 210 × 120 mm) and lightweight design (3.2 kg) facilitate integration into biosafety cabinets, laminar flow hoods, or crowded benchtop environments without compromising accessibility.

Sample Compatibility & Compliance

The HB105-S2 accommodates standard tube formats—including 0.2 mL, 0.5 mL, 1.5 mL, and 2.0 mL microcentrifuge tubes—as well as 96-well PCR plates (with optional adapter), via interchangeable aluminum blocks. All contact surfaces are anodized for corrosion resistance and ease of decontamination. The device meets CE marking requirements under the Low Voltage Directive (2014/35/EU) and Electromagnetic Compatibility Directive (2014/30/EU). Its thermal performance aligns with ASTM E2251-22 (Standard Specification for Laboratory Thermal Equipment) for accuracy, uniformity, and repeatability in block-heated systems. For regulated environments (e.g., clinical labs, QC facilities), audit trails may be generated manually via timestamped operator logs; while the unit itself does not include 21 CFR Part 11-compliant electronic signatures, its deterministic timer and fixed setpoint architecture support GLP-aligned procedural documentation.

Software & Data Management

The HB105-S2 operates as a standalone hardware-controlled instrument with no embedded firmware update capability or USB/Bluetooth connectivity. All configuration—including temperature setpoint, hold duration, and alarm enable/disable—is performed locally via membrane keypad and confirmed visually on dual LED displays. Temperature data is not logged internally nor exportable; however, integration with external data acquisition systems is possible using the analog output signal from the optional PT1000 probe (when paired with a compatible DAQ module). This architecture prioritizes operational simplicity, electromagnetic noise immunity, and long-term reliability—making it suitable for GMP-aligned production support labs where software validation overhead must be minimized.

Applications

• Enzyme kinetics assays requiring strict thermal consistency across replicate reactions.
• Pre-incubation of restriction digests, ligations, and reverse transcription mixes prior to thermocycling.
• Controlled thawing of cryopreserved cell suspensions, antibodies, or sensitive protein standards.
• Standardization of viscosity reference materials in QC testing per ISO 3219 or ASTM D445.
• Stabilization of calibration standards during spectrophotometric or fluorometric assay development.
• Supporting ISO 15197:2013 glucose meter verification protocols where precise 37°C incubation of test strips is mandated.

FAQ

Does the HB105-S2 support programmable ramping profiles (e.g., gradient heating)?
No—the unit provides only static setpoint control with a countdown timer. It does not offer multi-step temperature ramps or dwell sequences.
Can both channels operate at different temperatures simultaneously?
Yes—each channel has independent temperature and timer controls, allowing asynchronous operation across the full 25–105°C range.
Is the PT1000 sensor included with the instrument?
No—the PT1000 external temperature probe is an optional accessory and must be ordered separately.
What maintenance is required for long-term accuracy?
Annual verification using a NIST-traceable reference thermometer is recommended; no user-serviceable components require periodic replacement.
Is the unit suitable for use inside a CO₂ incubator?
No—it is rated for ambient operation only (10–40°C, <80% RH) and lacks environmental sealing for humidified or gaseous enclosures.