Thermo Scientific Heratherm IGS750 General Protocol Incubator

Thermo Scientific Heratherm IGS750 General Protocol Incubator

The Thermo Scientific Heratherm IGS750 Incubator is a large-capacity general-purpose laboratory incubator designed for microbiology, pharmaceutical research, biotechnology, food and beverage testing, sample conditioning, and other routine applications requiring stable elevated temperatures. With a substantial 26.4 cu. ft. (747 L) chamber, gravity convection, microprocessor temperature control, and an operating range from approximately ambient +5°C to 75°C, the IGS750 provides high-volume incubation capacity while maintaining the gentle airflow characteristic of natural-convection systems.

Available used and refurbished from American Instrument Exchange, the Thermo Heratherm IGS750 is particularly well suited for laboratories that need considerably more sample capacity than a conventional benchtop incubator can provide. Its wide 39.5-inch interior, tall 51.5-inch chamber, removable shelving system, stainless steel interior, and mobile floor-standing design make it a practical option for laboratories processing large sample loads or multiple projects simultaneously.

Key Features

• Large 26.4 cu. ft. (747 L) incubation chamber

• Temperature range from ambient +5°C to 75°C

• Gravity convection for gentle natural airflow

• Approximately ±1.3°C temperature uniformity at 37°C

• Approximately ±0.4°C temperature stability at 37°C

• Microprocessor temperature control

• Large vacuum fluorescent temperature display

• Simple push-button control interface

• Stainless steel interior with rounded corners

• Two shelves supplied as standard

• Capacity for up to 39 shelves

• Maximum shelf load of approximately 66 lb.

• Removable shelving system for easier chamber cleaning

• Lockable casters for mobility and stability

• Floor-standing large-capacity configuration

• 120V, 60 Hz electrical configuration

• Professionally inspected and temperature tested by American Instrument Exchange

• 90-day warranty included

Thermo Scientific Heratherm IGS750 Overview

The Thermo Scientific Heratherm IGS750 was designed for laboratories that need large-volume incubation without the forced airflow of a mechanical-convection chamber. Its approximately 26.4 cu. ft. interior provides several times the capacity of a typical benchtop incubator, allowing researchers to process large numbers of samples or maintain several projects within the same temperature-controlled environment.

The chamber measures approximately 39.5"W × 22.4"D × 51.5"H, providing both substantial horizontal workspace and enough vertical clearance for multiple shelf levels. Two shelves are supplied as standard, but the chamber can accommodate as many as 39 shelves when configured for smaller sample containers.

Unlike mechanically circulated incubators, the IGS750 uses gravity convection. As air is warmed, it rises naturally through the chamber while cooler air descends, creating gentle circulation without a mechanical blower. This reduces air movement around samples and can help minimize drying of open plates, dishes, and containers.

Temperature is controlled by an onboard microprocessor and displayed on a large vacuum fluorescent display that can be read easily from a distance. Straightforward push-button controls allow operators to select and monitor chamber temperature without navigating a complex programming interface.

The stainless steel interior incorporates rounded corners to simplify cleaning, while the removable shelving system provides greater access to chamber surfaces. Lockable casters allow the large incubator to be repositioned when necessary and then secured during normal operation.

Common Applications

The Thermo Heratherm IGS750 is particularly well suited for microbiology, pharmaceutical research and quality control, biotechnology, clinical research, food and beverage testing, environmental laboratories, academic research, sample conditioning, media warming, and other high-volume constant-temperature applications.

Its 26.4 cu. ft. chamber makes it especially useful when a laboratory needs to incubate a large number of samples simultaneously. Rather than dividing work among several smaller incubators, researchers can organize multiple sample groups across the IGS750's large interior.

Gravity convection can also be advantageous for applications involving open or loosely covered containers. Because there is no high-velocity mechanical fan moving air directly around samples, the chamber creates a gentler incubation environment with less potential for evaporation and drying.

The IGS750 is intended primarily for applications requiring temperatures above laboratory ambient. It does not incorporate refrigeration, so laboratories requiring controlled conditions near or below room temperature should select a refrigerated incubator instead.

Laboratories using the Heratherm IGS750 may pair it with laboratory refrigerators and laboratory freezers for sample and reagent storage, laboratory centrifuges for sample preparation and separation, and other laboratory incubators for applications requiring different chamber sizes or environmental conditions.

Samples & Incubation Applications

The Thermo Heratherm IGS750 is best considered a large-capacity general-purpose microbiological incubator. Its primary strength is providing substantial temperature-controlled space with relatively gentle natural air circulation.

Common Samples & Applications

• Bacterial and microbiological cultures

• Culture media

• Pharmaceutical quality-control samples

• Biotechnology research samples

• Food and beverage testing samples

• Clinical and research specimens

• Environmental samples

• Biochemical samples

• General laboratory samples requiring controlled warming

Typical Laboratory Vessels

• Petri and culture dishes

• Multiwell plates

• Test tubes and tube racks

• Culture bottles

• Erlenmeyer flasks

• Sample vials

• Media bottles

• Trays and larger sample containers

The large chamber can be configured around substantially different sample loads. Laboratories processing large containers can use fewer shelves with greater vertical clearance, while applications involving dishes, plates, or smaller vessels can take advantage of additional shelf positions to increase sample density.

Each shelf can support approximately 66 lb., while the chamber's maximum overall loading capacity should also be considered when configuring particularly heavy sample loads.

Temperature Control & Environmental Stability

The defining performance characteristic of the Thermo Heratherm IGS750 is its combination of large chamber capacity and gravity-convection temperature control.

The chamber operates from approximately 5°C above ambient to 75°C. At a typical 37°C incubation temperature, Thermo specifies spatial temperature deviation of approximately ±1.3°C and temperature deviation over time of approximately ±0.4°C under standard test conditions.

Gravity convection creates circulation through the natural movement of heated air rather than using a fan. This provides a different balance of performance from a mechanically circulated incubator. Forced-air systems generally provide tighter spatial uniformity and faster recovery, while gravity convection produces gentler airflow and can reduce evaporation from open samples.

For microbiology and other routine applications where minimizing sample drying is important, this can make gravity convection particularly attractive.

The microprocessor controller allows temperature adjustments in 0.1°C increments, providing straightforward control for routine laboratory protocols. The large vacuum fluorescent display makes the chamber temperature easy to monitor during normal operation.

Thermo's Heratherm design also incorporates a stainless steel interior with rounded corners and removable shelf supports. These features reduce hard-to-reach areas within the chamber and simplify routine cleaning between experiments or sample batches.

The large floor-standing chamber is mounted on lockable casters, allowing the incubator to be repositioned for cleaning, maintenance, or laboratory reconfiguration while providing a stable installation during normal use.

For laboratories that primarily need high-volume, above-ambient incubation with gentle airflow, the combination of 747 L capacity, gravity convection, microprocessor temperature control, and straightforward operation gives the IGS750 a clear advantage over using several smaller general-purpose incubators.

Thermo Scientific Heratherm IGS750 Specifications

Specifications can vary slightly according to production date and individual unit configuration. Exterior height may also be reported differently depending on whether the casters are included in the measurement. Confirm shelving, electrical requirements, dimensions, accessories, and other specifications for the individual incubator before purchase.

Thermo Scientific Heratherm IGS750 Frequently Asked Questions

What is the advantage of the Thermo Heratherm IGS750's 26.4 cu. ft. chamber?

The 26.4 cu. ft. (747 L) chamber provides substantially more incubation capacity than a conventional benchtop unit. It is particularly useful for laboratories processing large sample loads, maintaining multiple projects simultaneously, or working with larger containers that cannot easily be accommodated in smaller incubators.

What is the difference between gravity convection and mechanical convection?

Gravity convection relies on the natural movement of warm and cool air rather than a mechanical fan. This creates gentler airflow with less potential for drying open samples. Mechanical-convection incubators generally provide tighter temperature uniformity and faster recovery but introduce more active air movement around samples.

Is the Thermo IGS750 suitable for microbiology?

Yes. The Heratherm IGS Series was designed as a general-protocol microbiological incubator platform. The IGS750's large chamber makes it especially useful for laboratories performing higher-volume bacterial culture, microbiological testing, media incubation, and other routine temperature-controlled procedures.

How many shelves can the IGS750 hold?

The IGS750 is supplied with two shelves as standard but can accommodate up to 39 shelves. This gives laboratories considerable flexibility in configuring the chamber around large containers or maximizing sample density when working with smaller dishes, plates, bottles, and other vessels.

Is the Thermo IGS750 refrigerated?

No. The IGS750 is a non-refrigerated general-purpose incubator with an operating range beginning approximately 5°C above ambient. Applications requiring controlled temperatures at or below room temperature should use a refrigerated incubator.

Does the IGS750 control CO₂ or humidity?

No. The IGS750 is designed primarily for temperature-controlled general laboratory incubation. It does not provide the regulated CO₂ atmosphere required for conventional mammalian cell culture or the active humidity regulation found in environmental chambers.

Is this Thermo Heratherm IGS750 refurbished?

Used Thermo Heratherm IGS750 incubators offered by American Instrument Exchange are inspected, cleaned, and tested prior to shipment. Temperature performance is evaluated using calibrated digital monitoring equipment to verify chamber conditions and the accuracy of the controls and readouts. Heating, controls, safety functions, shelving, door components, and other installed systems are inspected and tested as applicable, with components replaced as necessary. Refurbished equipment includes a 90-day warranty.

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