DLAB MiniH 100 Compact Metal Block Heater

Overview

The DLAB MiniH 100 Compact Metal Block Heater is an engineered solution for precise, stable, and space-efficient thermal incubation of small-volume samples in research, clinical, and quality control laboratories. Utilizing solid aluminum heating blocks with high thermal conductivity and uniform heat distribution, the MiniH 100 operates on Peltier-free resistive heating technology—ensuring rapid thermal response, minimal overshoot, and long-term stability without refrigerant dependency. Its compact footprint (110 × 162 × 140 mm) and sub-1 kg mass make it ideal for benchtop deployment in fume hoods, biosafety cabinets, or multi-instrument workstations. Designed for routine applications including enzyme activation, DNA denaturation, sample thawing, and reagent pre-warming, the device delivers consistent thermal performance across its operational range of ambient +5°C to 100°C—meeting core requirements for ISO/IEC 17025-compliant thermal validation protocols.

Key Features

• High-resolution LCD interface with dual-parameter display: real-time temperature and countdown timer (configurable in minutes or seconds)
• Precision temperature control with ±0.5°C accuracy and 0.1°C display resolution across 25–100°C setpoint range
• Programmable thermal profiles: up to 9 independent two-segment programs (e.g., hold at 37°C for 10 min → ramp to 95°C for 5 min), supporting reproducible multi-step assays
• User-accessible calibration mode enabling field verification and offset adjustment per block—critical for GLP/GMP traceability and audit readiness
• Integrated over-temperature safety cutoff with audible and visual error code indication (e.g., E1 = sensor fault, E2 = overheat)
• Modular block compatibility: interchangeable aluminum blocks accommodating standard tube formats (0.2 mL, 0.5 mL, 1.5 mL, 2.0 mL PCR tubes; 0.5–15 mL centrifuge tubes; microplates)
• Low-power operation (60 W max) with universal 100–240 VAC input—suitable for international lab deployments without voltage conversion

Sample Compatibility & Compliance

The MiniH 100 supports a broad spectrum of common laboratory consumables via standardized, tool-free block swaps. Each block is CNC-machined from aerospace-grade aluminum for dimensional repeatability and thermal homogeneity (±0.3°C intra-block variance at 70°C, measured per ASTM E220). The heater complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets EMC requirements per EN 61326-1. While not intrinsically refrigerated, optional thermoelectric cooling variants (MiniH 100-C) extend functionality to sub-ambient applications down to 4°C—enabling hybrid warm/cool workflows without external chillers. All firmware and hardware designs adhere to FDA 21 CFR Part 11 principles for electronic records, with audit-trail-capable software available via optional DLAB Connect Suite.

Software & Data Management

The MiniH 100 operates autonomously via its embedded controller but integrates seamlessly with DLAB’s optional PC-based DLAB Connect software (Windows/macOS). This application enables remote parameter configuration, real-time temperature logging (CSV export), profile synchronization across multiple units, and electronic signature-enabled method locking—supporting 21 CFR Part 11 compliance for regulated environments. Data logs include timestamped temperature readings, program execution status, error events, and user ID metadata. Firmware updates are delivered via USB flash drive with checksum validation to ensure integrity during GxP-critical deployments.

Applications

• Molecular biology: PCR tube preheating, restriction enzyme digestion incubation, plasmid ligation setup
• Clinical diagnostics: Serum sample equilibration prior to ELISA or immunoassay, calibrator reconstitution
• Pharmaceutical QC: Dissolution media pre-warming, viscosity reference standard conditioning
• Food & beverage testing: Enzymatic assay activation (e.g., amylase, protease), microbial culture media tempering
• Academic teaching labs: Demonstrating Arrhenius kinetics, enzyme thermolability studies, and thermal denaturation curves

FAQ

What is the maximum load capacity per heating block?
Each block is rated for continuous operation with up to 9 standard 1.5 mL tubes or equivalent volume—thermal uniformity remains within specification under full-load conditions.
Does the MiniH 100 support external temperature probes for chamber monitoring?
No—the unit relies on integrated PT1000 sensor feedback from the block base; external probe input is not supported in standard configuration.
Can the device maintain temperature stability during extended overnight runs?
Yes—tested for 16-hour continuous operation at 65°C with drift <±0.3°C, verified per ISO 8573-1 Annex B thermal stability methodology.
Is calibration documentation provided with shipment?
A factory calibration certificate (traceable to NIST standards) is included; users may perform in-house verification using certified reference thermometers per SOP-LAB-THM-003.
Are replacement blocks available for non-standard tube formats?
DLAB offers custom-machined blocks upon request (lead time: 4–6 weeks); standard catalog includes 0.2 mL, 1.5 mL, 2.0 mL, and 15 mL configurations.