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Thermo Scientific Heratherm OMH400 Advanced Lab Oven - Mechanical - 14 cf

Part Number: 51029329

Model 51029329, Thermo Scientific Heratherm OMH400 Advanced Lab Oven - Mechanical - 14 cf

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Part Number


Chamber Volume

14 Cubic Feet / 396 Liters


Mechanical Convection

Temperature Range

50°C to 250°C

Temp Uniformity

±2.1°C at 150°C

Temp Sensitivity


Chamber Dimensions

52.6"H x 21.4"W x 21.5"D

Ext Dimensions

60.8"H x 30.6"W x 30.3"D


298 lbs

Power Output

3240 Watts / 13.5 Amps


2 Shelves


208-240V 60Hz


2 Years Parts and Labor

(PDF Download) Heratherm Ovens Brochure

Heratherm OMH400 Laboratory Oven

Advanced Protocol ovens incorporate all the benefits of the General Protocol ovens and boast additional features providing even more flexibility, accuracy, and dependability.

Adjustable fan speed for application related airflow: High Speed for fastest drying and heating, quick recovery as well as best temperature stability and uniformity, and Reduced Speed for applications that require minimal airflow, like drying of powders.

Programmable controller for temperature ramps and dwells allows you to store up to 10 programs with 10 discrete steps

Fan speed and damper position are controlled electronically, and can be changed for every program step individually for maximal process flexibility

Sophisticated timer can automate the oven to turn on or off after a pre-set time and allows you to choose between a recurring weekly timer or a run based on the 24 hour clock

Capable of operating at temperatures up to 250°C with the highest level of temperature uniformity (2.1°C)

Inner chamber is made from corrosion-resistant stainless steel (AISI 304) with rounded corners for easy cleaning

Door can be opened 180° to allow convenient access to the interior for hassle free cleaning and easy loading of probes

Simple, microprocessor-based touch button controls

RS232 data interface included

Fresh Air damper provides control over air exchanges and is electronically controlled

Dedicated access port allows the introduction of sensors for independent data monitoring

Heratherm OMH400 Dedicated Access Port
Dedicated Access Port

Dry alarm contact included for the connection of an alarm device

Boost function enables rapid heating up no need to run the oven 24/7

A simple calibration routine ensures temperature accuracy over time

Lockable casters for mobility and easy set-up in your lab

Includes 2 shelves with a maximum weight (shelf load) of 88 pounds. Each oven can hold 39 shelves. See accessories for more shelves.

Mechanical Convection

Fast sample drying and heating

Superior temperature uniformity

Fast temperature recovery after door opening


Heratherm ovens feature an environmentally friendly design with cost savings in mind, reducing energy consumption by as much as 23% compared to previous (Lindberg Blue M and Precision) models.

Surpassing energy efficiency, increasing cost effectiveness, reducing environmental impact.

Exceptionally low energy consumption

Heratherm OMH400 Round Corners for Easy Cleaning
Round Corners =
Easy Cleaning

Unique door design reduces heat emission significantly

Timer for effective usage and additional energy savings

Flexible shelving system allows for optimal space utilization


Routine check upon startup for optimum performance levels.

Temperature uniformity +/- 2.1°C at 150°C

Automatic audible and visual overtemperature alarm system to protect samples

Access port for data logging with independent sensors

Low surface temperatures


Large, easy to view vacuum fluorescent display

Easy setting with intuitive interface

Easy cleaning with rounded corners

Optional Accessories

Heratherm Wire Mesh Shelf for OMH400, OGS400

Part Number: 50135245

The wire mesh shelf includes 2 shelf supports and can hold up to 88 pounds of weight. Fits the following models: OMH400, OGS400.

Sale Price: $245.00

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Model 50135245, Thermo Scientific Heratherm Wire Mesh Shelf for OMH400, OGS400

Heratherm Sample Temperature Sensor

Part Number: 50127767

A sample temperature sensor connects your sample directly to the oven for precise control. With the sample sensor attached, you can use the auto-dry function to deactivate the oven automactically when your samples are dry. Works with the following models: OGH60-S, OMH60-S, OGH100-S, OMH100-S, OGH180-S, OMH180-S.

Sale Price: $288.00

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Fresh Air Particle Filter for Heratherm Ovens

Part Number: 50127566

(1) fresh air particle filter for connection to the fresh air vent (intake); for all Heratherm ovens.

Sale Price: $530.00

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Silicone-Free Viton Door Sealing for OMH400, OGS400

Part Number: 50135869

Fits the following models: OMH400, OGS400.

Sale Price: $705.00

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