Truelab HB-100M Mini Metal Bath (Heating-Only, Constant-Temperature Dry Block Heater)

Overview

The Truelab HB-100M Mini Metal Bath is a compact, low-power, constant-temperature dry block heater engineered for precision thermal incubation of small-volume samples in resource-constrained or mobile laboratory environments. Unlike water baths, it employs solid aluminum heating blocks with precisely machined wells to deliver rapid, uniform, and contamination-free temperature control via resistive heating and PID-regulated feedback. Its core operating principle relies on direct conductive heat transfer from the thermally homogeneous metal block to sample vessels—eliminating evaporation, condensation, and cross-contamination risks inherent in liquid-based systems. Designed for ambient +5°C to 100°C operation, the HB-100M meets routine requirements for enzyme activation, DNA denaturation, antigen retrieval, reagent pre-warming, and cell culture sample equilibration. Its 24 V DC input architecture enables safe deployment in vehicles, field laboratories, biosafety cabinets, and ISO-classified cleanrooms where AC mains access is limited or prohibited.

Key Features

• Compact footprint (200 × 250 × 200 mm) and lightweight design (1 kg net weight) for benchtop portability and space-limited installations.
• High-resolution LCD interface displaying real-time block temperature and countdown timer; intuitive rotary knob for parameter setting.
• PID-controlled temperature regulation ensuring ≤±0.5°C stability at 100°C and ≤±0.3°C well-to-well uniformity at 40°C—validated per ISO/IEC 17025 traceable protocols.
• Integrated safety architecture: over-temperature cutoff (hardware-independent), automatic fault detection, audible alarm, and self-calibrating temperature offset compensation.
• 24 V DC power input compliant with IEC 61000-6-3 (EMC) and UL 61010-1 (safety); suitable for vehicle-mounted use, remote field stations, and battery-backed setups.
• Modular well configuration support: interchangeable aluminum blocks accommodate standardized microtubes (0.2–2.0 mL), centrifuge tubes (15–50 mL), and cuvettes (8–12.5 mm), enabling method flexibility without instrument replacement.

Sample Compatibility & Compliance

The HB-100M supports common laboratory consumables including PCR strips, single tubes, microcentrifuge vials, and rectangular cuvettes. All heating modules are CNC-machined from aerospace-grade anodized aluminum to ensure thermal consistency, corrosion resistance, and mechanical durability under repeated thermal cycling. The device complies with general-purpose laboratory equipment standards including EN 61010-1:2010 (Electrical Safety) and EN 61326-1:2013 (EMC for Laboratory Use). While not certified for IVD or GMP manufacturing environments, its temperature repeatability and audit-ready operational logs (via optional software interface) support GLP-aligned workflows in QC labs, academic research, and clinical pathology settings.

Software & Data Management

The HB-100M operates as a standalone unit with embedded firmware—no PC connection required for basic operation. For laboratories requiring electronic record retention, an optional RS-232 or USB-to-serial adapter enables integration with LIMS or custom data acquisition platforms. When connected, the device transmits timestamped temperature readings, setpoint history, and alarm events—supporting 21 CFR Part 11-compliant audit trails when paired with validated third-party software. Firmware updates are performed offline via microSD card, preserving integrity during regulatory inspections.

Applications

• Thermal activation of restriction enzymes and ligases prior to molecular cloning workflows.
• Pre-incubation of immunoassay reagents and ELISA plates to minimize edge effects and improve assay reproducibility.
• Routine warming of cryopreserved cell suspensions, serum aliquots, and antibody stocks to physiological temperature.
• Controlled denaturation of nucleic acids in qPCR and RT-PCR sample preparation steps.
• Stabilization of thermolabile standards and calibration reference materials during analytical method validation.
• Mobile diagnostics deployment: integrated into point-of-care testing carts for tropical disease surveillance programs requiring ambient-robust thermal conditioning.

FAQ

Is the HB-100M compatible with refrigerated operation?
No—the HB-100M is a heating-only dry block heater. Truelab offers separate Peltier-cooled models (e.g., HB-100MC) for combined heating/cooling applications.
Can the device maintain temperature during power interruption?
It lacks onboard battery backup; operation ceases upon DC power loss. However, thermal mass of the aluminum block provides brief residual hold time (~2–3 min at 100°C).
What calibration documentation is provided?
Each unit ships with a factory calibration certificate (traceable to NIM, China), listing as-delivered accuracy at 37°C, 60°C, and 100°C against reference RTDs.
Are custom well configurations available?
Yes—Truelab accepts OEM block designs for non-standard tube geometries or multi-format hybrid blocks, subject to minimum order quantity and lead time confirmation.
Does the unit meet IP rating requirements for humid environments?
It carries no formal IP rating; operation in high-humidity settings requires placement on a non-condensing surface and avoidance of direct aerosol exposure.