Block Heater

Advanced Dry Block Heaters

These multi-purpose heating units are designed for laboratory applications requiring repeatable results and superior temperature stability. The dry block heaters are ideal for enzyme reactions, immunoassays, incubation and activation of cultures, melting/boiling points, DNA applications, denaturing proteins, ELISA studies, and a wide variety of other laboratory procedures.

Design and Construction

Each of the five models accommodates interchangeable modular blocks that accept various tube sizes from 0.2 mL micro-tubes to 50 mL centrifuge tubes. The integral support rod holder with locking knob accepts an optional External Temperature Probe Kit. Efficient heating is achieved through close tube-and-block contact for maximum heat retention. Each block includes a thermometer well for measuring block temperature. Heaters require OHAUS modular heating blocks for operation, which are sold separately.

Control System

Microprocessor Control

PID temperature control, with optional external RTD probe, offers temperature stability as low as ± 0.1°C with temperature uniformity as low as ± 0.1°C. Samples are heated to temperature quickly and accurately. Temperature is adjusted in ± 0.1°C increments.

LED Display

Touch pad controls with easy-to-read, independent LED displays for temperature and time. Shows set-point and actual temperature. Timer displays elapsed time or, when programmed to user defined limit, will shut off unit when time reaches zero. Display shows last used settings, even after power has been turned off. Provides repeatable and accurate results every time and is easily visible across lab benches.

Temperature Calibration Mode

Allows user to calibrate unit to an external temperature device.

Safety Features

• Caution Hot Indicator: Hot warning symbol light is illuminated when the temperature is above 40°C
• Overshoot Protection: If the unit exceeds the set temperature by 10°C the unit will automatically stop heating
• Audible Alarm: In timed mode, alarm will sound when time reaches zero and when unit reaches set-point temperature

CAUTION! To avoid possible electrical hazard, do not fill well or block opening with water or other fluids. Unit is designed as a dry bath/incubator.

Technical Specifications

Operating Conditions

Units can be run in conditions from 18 to 33°C (64 to 91°F), 20% to 80% relative humidity, non-condensing.

Model Information

Units include a detachable, 3-wire cord and plug. Modular blocks are sold separately.

External Temperature Probe Kit

Enables the unit to read actual block or sample temperature and display that temperature on the control panel. The optional External Temperature Probe Kit includes a stainless steel RTD PT100 probe, 18" (45.7 cm) stainless steel support rod, thermometer/temperature probe extension clamp and hook connector. The PT100 RTD probe is designed to fit perfectly in to the thermometer well of each modular block.

Modular Blocks and Accessories

Modular blocks are constructed from a solid anodized aluminum block. The close contact of tubes-to-block walls allow for maximum heat retention. Each block has a thermometer well for measuring block temperature.

CAUTION! To avoid possible electrical hazard, do not fill well or block with water or other fluids. Units are designed as a dry bath/incubator.

Single block dimensions (L × W × H): 3.75 × 3 × 2" (9.5 × 7.6 × 5.1 cm)

Double block dimensions (L × W × H): 6 × 3.75 × 2.25" (15.2 × 9.5 × 5.7 cm)

Microcentrifuge Tube Blocks

Single block

Titer Plate Block

Double block

Fits 2/4/6 block Dry Block Heaters. Ideal for 96-well or 384-well titer plates. Recessed well for better stability, flat surface good for flat and round bottom plates.

Conical-Bottom Centrifuge Tube Blocks

Single block

Standard Test Tube Blocks

Single block

Combination Blocks

Single block

These blocks have been designed for variable sized samples.