VWR Analog Dry Bath Dual Block Heater

VWR Standard Analog Dry Bath Dual Block Heater (75838-286)

The VWR 75838-286 Standard Analog Dry Block Heater is an economical and highly dependable laboratory heating platform designed for workflows that require consistent thermal incubation without the premium cost of digital electronics. Built to accommodate two interchangeable modular aluminum blocks, this unit utilizes dual manual control knobs to independently regulate high and low temperature ranges. Its robust, straightforward mechanical design makes it a reliable asset for routine clinical batching, sample warming, and general extraction protocols.

Technical Performance & Design

• Dual Manual Analog Controls: Features two separate dial adjustment knobs—one for fine-tuning low temperature ranges and another for high temperature thresholds—allowing precise manual scaling of thermal profiles.
• High-Density Heating Efficiency: Powered by close-contact internal heating cartridges that maximize thermal conduction directly to the aluminum blocks, achieving excellent well-to-well temperature uniformity.
• Dual-Block Workspace: The 2-block well array doubles multi-sample preparation capacities within a compact footprint, allowing operators to run different tube diameters simultaneously using separate block modules.
• Bimetallic Safety Architecture: Operates completely via mechanical bimetallic thermostats, providing heavy-duty resistance against power surges and eliminating delicate digital circuit boards susceptible to chemical vapor corrosion.

Product Specifications

• Model Number / Part No: 75838-286 (Standard Analog Series)
• Capacity: 2 Modular Aluminum Heating Blocks (Blocks sold separately)
• Temperature Range: Ambient +5°C to 120°C
• Temperature Stability: ±0.5°C under stable ambient conditions
• Temperature Uniformity: ±0.2°C within the wells of a single block
• Physical Dimensions (L x W x H): 15.4 x 8.0 x 3.5 inches (39.1 x 20.3 x 8.9 cm)
• Electrical Requirements: 120V AC, 50/60 Hz, Single Phase, 1.7 Amps, 210 Watts

Key Benefits & Applications

• Routine Incubation Workflows: Ideal for daily laboratory procedures such as inactivation of cultures, enzyme digestions, immunoassay warming, and media melting.
• "Hot" Visual Safety Warning: Equipped with a bright, independent safety indicator light that automatically illuminates whenever the block platform surface exceeds 40°C, remaining active even if the main heating control dial is switched off.
• Integrated Thermometer Well Support: Because analog units lack a digital readout, temperature verification is easily handled by inserting a calibrated glass or digital reference thermometer directly into the dedicated well found on all matching modular blocks.
• Rugged Industrial Housing: Encased in a heavy-gauge, powder-coated steel chassis with an easy-to-wipe aluminum well liner designed to withstand accidental chemical drops, solvents, and intensive everyday handling.
  

Used, tested to be in great working condition.

VWR® is a registered trademark of VWR International, LLC. The 75838-286 catalog number includes the base analog heating terminal chassis only. To operate the unit correctly, empty spaces must be completely filled with matching VWR Anodized Aluminum Modular Heating Blocks, which are configured independently based on your vial sizes.