Stuart SBH130 Analog Dry Bath Incubator Heater

Overview

The Stuart SBH130 Analog Dry Bath Incubator Heater is a precision-engineered thermal platform designed for consistent, contact-based heating of small-volume laboratory vessels in microbiological, clinical, biochemical, and molecular applications. Unlike water baths, the SBH130 employs solid aluminum heating blocks—thermally optimized for rapid heat transfer and minimal thermal lag—to deliver stable, uniform temperatures without evaporation, condensation, or contamination risks. Its operating principle relies on resistive heating elements embedded beneath an anodized aluminum block, regulated via a calibrated analog thermostat that maintains setpoint stability through proportional control logic. The device operates across a broad functional range—from ambient +8°C up to 130°C—making it suitable for enzyme inactivation, DNA denaturation, sample concentration, cell culture pre-warming, and routine incubation steps where precise, dry-heat exposure is required. With no digital interface or programmable ramping, the SBH130 prioritizes simplicity, reliability, and low-maintenance operation in high-throughput core labs, teaching laboratories, and QC environments governed by GLP-aligned workflows.

Key Features

• Robust analog temperature control with tactile dial adjustment—engineered for intuitive, repeatable setpoint selection without software dependency.
• High-thermal-conductivity aluminum heating block assembly ensures rapid equilibration (<12 minutes to 100°C) and exceptional temperature homogeneity (±0.1°C at 37°C).
• Dual-block configuration supports parallel processing of heterogeneous sample formats—including 0.2–15 mL tubes, cuvettes, microcentrifuge vials, and 96-well plates—when paired with compatible interchangeable modules (sold separately).
• Integrated safety system includes a flashing “HOT” LED indicator activated automatically when block surface temperature exceeds 50°C—providing immediate visual warning to prevent accidental contact burns.
• Compact footprint (235 × 280 × 115 mm) and lightweight design (2.1 kg) enable flexible benchtop deployment, including under-hood installations or mobile lab carts.
• CE-marked construction compliant with IEC 61010-1:2010 for electrical safety in laboratory environments; rated for continuous operation at full load (300 W, 230 V / 50 Hz).

Sample Compatibility & Compliance

The SBH130 accommodates standard laboratory consumables via user-selectable aluminum blocks—each machined to precise tolerances matching common tube diameters (e.g., 13 mm, 16 mm), microplate footprints (e.g., ANSI/SLAS format), or custom geometries. Its mechanical design avoids direct electrical contact with samples, eliminating risk of electrolytic interference during sensitive assays such as ELISA, PCR setup, or protein stability studies. While not validated per ISO/IEC 17025 for metrological traceability, the unit meets functional performance criteria aligned with ASTM E2757–19 (Standard Guide for Laboratory Equipment Qualification) for dry bath thermal uniformity verification. It supports routine calibration using NIST-traceable RTD probes and is routinely deployed in environments adhering to CLIA, CAP, and UK NEQAS guidelines for non-instrumented thermal devices.

Software & Data Management

The SBH130 operates entirely without embedded firmware, connectivity interfaces, or data logging capabilities—reflecting its role as a dedicated, standalone thermal platform. This architecture eliminates cybersecurity vulnerabilities, reduces validation overhead, and ensures uninterrupted operation in regulated settings where FDA 21 CFR Part 11 compliance is not required for ancillary equipment. Users maintain manual calibration records and temperature mapping reports per internal SOPs. For labs requiring electronic audit trails, external USB or Bluetooth-enabled thermocouple loggers (e.g., Omega OM-DAQPRO-5300 series) may be employed alongside the unit to document time-temperature profiles during qualification protocols.

Applications

• Enzyme inactivation post-reaction (e.g., restriction digests, ligations, kinase assays)
• Pre-heating reagents and buffers prior to assay initiation
• Controlled drying or solvent evaporation from microvolume samples
• Thermal conditioning of diagnostic test strips and lateral flow devices
• Incubation of bacterial cultures in antibiotic susceptibility testing workflows
• Stabilization of thermolabile standards during analytical method development

FAQ

Does the SBH130 include interchangeable heating blocks?
Yes—the unit ships with two standardized aluminum blocks; however, application-specific modules (e.g., for 0.2 mL PCR tubes or 96-well plates) must be ordered separately.
Is temperature calibration traceable to national standards?
The device does not include factory calibration certificates, but its analog control system is field-verifiable using Class A platinum RTD probes traceable to NIST or UKAS-accredited laboratories.
Can the SBH130 be used in a fume hood?
Yes—its sealed electronics, absence of volatile fluids, and low surface emission profile make it suitable for ventilated enclosures, provided ambient airflow does not exceed 0.5 m/s directly over the block surface.
What maintenance is required?
Routine cleaning with isopropyl alcohol and lint-free wipes; annual inspection of power cord integrity and terminal tightness is recommended per IEC 62353.
Is the unit compatible with 110 V power supplies?
No—the SBH130 is configured exclusively for 230 V / 50 Hz operation; use with voltage converters is not supported due to thermal controller sensitivity and safety certification constraints.