Benchtop Incubator

What is the Benchtop Incubator?

A benchtop incubator is a compact above-ambient chamber of 20 to 150 liters for routine culture and assays. It is the standard choice for small laboratories and teaching with limited bench space.

Overview

The benchtop incubator places a 20 to 150 liter chamber in a unit that fits on a laboratory bench, with one or two shelves for plates, flasks or bottles. Heating is by wall elements or a water jacket, and temperature reaches ambient plus 5 to 70 C with uniformity of plus or minus 0.5 to 2 C. A digital PID controller with timer and over-temperature protection is standard, and an inner glass door on some models reduces heat loss when viewing. Natural or forced convection is available depending on the model. Power is modest, usually 200 to 800 W. It serves routine microbiology, enzyme assays and sample conditioning where batch size is small and bench space is the constraint.

How does it work?

A standard incubator holds temperature with heating elements or a water jacket around an insulated chamber. A Pt100 or thermistor sensor feeds a PID controller that switches the elements, and air circulates either naturally by convection or with a fan for tighter uniformity. Natural convection gives gentle conditions with little evaporation and no fan to disturb cultures, while forced air gives better uniformity and faster recovery after door openings. Shear layers of insulation and a gasketed door limit heat loss. Units work above ambient, typically 5 to 80 C, so no refrigeration is needed. Controls range from mechanical thermostats to digital PID units with timers, alarms and data output. Shelves or trays position the samples, and an inner glass door on some models lets operators view cultures without disturbing the chamber.

What are the key features?

• Compact chamber of 20 to 150 liters
• One or two shelves for plates and flasks
• Temperature range RT+5 to 70 C
• Digital PID controller with timer
• Optional inner glass door
• Low power of 200 to 800 W

What are the technical specifications?

A typical benchtop incubator configuration offers chamber volume of 20–150 L, temperature range of RT+5 to 70 C, temperature uniformity of ±0.5–2 C, temperature fluctuation of ±0.3 C, display resolution of 0.1 C and shelves supplied of 1–2. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Benchtop Incubator is used in routine culture of plates, enzyme and biochemical assays, small-batch sample conditioning and teaching laboratory work. Across the wider Standard Incubators class, laboratories also deploy it for bacterial and fungal culture, enzyme and biochemical assays and food and beverage microbiological testing.

Which standards and certifications apply?

Relevant standards and methods include IEC 61010-1, IEC 61010-2-010, DIN 12880, ISO 4833-1, ISO 6222 and ISO 9001. Certification candidates for this model are CE, ISO 9001 manufacturing and RoHS; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Place the incubator on a level bench away from sunlight, heat sources, doors and drafts, in a room with stable ambient temperature below about 30 C, and leave clearance for ventilation. Load shelves evenly and leave gaps so air can circulate. Do not overload, since dense loads slow recovery and widen gradients. Clean the chamber between batches with a mild disinfectant compatible with the interior, and avoid corrosive agents on stainless steel. Check the door gasket for wear and the sensor for drift at defined intervals, calibrating with a reference probe across the chamber. Keep temperature and maintenance records, especially when the incubator supports regulated work.

How do I select the right Benchtop Incubator?

Select the benchtop incubator for small batches where bench space is limited and temperatures stay above ambient. Larger or higher-throughput work needs a floor-standing unit. In the RFQ, specify volume, temperature range, uniformity, convection type, shelves and power supply.

How does it compare with other Standard Incubators variants?

Choose a standard incubator when the setpoint is above ambient and neither CO2 control nor refrigeration is needed. Set the temperature range with margin above the highest working temperature and confirm uniformity at that point, often plus or minus 0.5 to 2 C. Decide between natural and forced convection: natural suits microbiology and low-evaporation work, forced suits high-throughput and fast recovery. Match chamber volume to vessel count and shelf area. Consider the controller, choosing digital for reproducibility or programmable for stepped profiles, and check alarms, data output and door type. Confirm power, bench or floor placement and service access before ordering.