Memmert UF110plus universal oven, compact heating and drying oven with forced air circulation and TwinDISPLAY, 108 litres, up to 300 °C

The Memmert UF110plus universal oven incorporates the series’ TwinDISPLAY safety features in a unit with 108 litres of internal volume, a temperature range of 20 to 300 °C and two redundant Pt100 sensors that monitor each other. With up to 5 shelves and a maximum total load of 175 kg, it offers the same capacity as the base model UF110, supplemented by HeatBALANCE and AutoSAFETY for unattended processes.

Forced air circulation with redundant temperature measurement

The UF110plus’s air turbine, which can be electronically controlled in 10 % increments, actively distributes heat throughout the chamber and operates within a temperature range of at least 10 °C above room temperature up to 300 °C. Two DIN Class A Pt100 sensors in a 4-wire configuration monitor each other; if one fails, the second automatically takes over its function. The setting accuracy is 0.1 °C up to 99.9 °C and 0.5 °C from 100 °C onwards. Preheated fresh air is introduced via an electronically adjustable exhaust air damper; the exhaust air outlet with throttle valve can also be controlled electronically.

ControlCOCKPIT TwinDISPLAY: HeatBALANCE and AutoSAFETY

The UF110plus is controlled via the ControlCOCKPIT TwinDISPLAY, which features two high-resolution TFT colour graphic displays. The HeatBALANCE function allows for fine-tuning of the heat output distribution between the upper and lower heating groups from -50 to +50 %. AutoSAFETY also monitors over- and under-temperature conditions, automatically tracks the setpoint within a freely selectable tolerance range and triggers visual and audible alarms in the event of a deviation; if the setpoint is exceeded, the heating system switches off. Programmes are programmed, managed and transferred via an Ethernet interface or USB port using the AtmoCONTROL software. A programmable door lock and a door-open detection system can be added as optional extras.

Capacity and dimensions of the Memmert UF110plus universal oven

The internal dimensions are 560 x 480 x 400 mm; the external dimensions of the housing are 745 x 864 x 584 mm, and the net weight is approximately 74 kg, identical to that of the base model UF110. Two electropolished stainless steel grid shelves are included as standard; up to five shelves can be fitted in total. The maximum total load is 175 kg, with a maximum of 20 kg per shelf. The interior consists of easy-to-clean stainless steel, reinforced by deep-drawn ribbing, with protected, integrated 4-sided all-round heating; the housing is made of textured stainless steel with a fully galvanised sheet steel rear panel. The UF110plus can be connected either to 230 V (approx. 2,800 W) or 115 V (approx. 1,800 W), in both cases at 50/60 Hz.

Selection guide: choosing the right size from the UF range

The Memmert UF range with forced air circulation comprises eight models with internal volumes ranging from 53 to 1,060 litres, each of which is also available with TwinDISPLAY. When selecting the right size, the key factors to consider, alongside the volume, are the footprint and the number of shelves required.

The UF110plus is the obvious choice when the Memmert UF75plus universal oven (74 litres) has reached its capacity limit, but you still wish to continue using TwinDISPLAY. If you require more volume and more shelves whilst maintaining the same footprint, you will find these in the Memmert UF160plus universal oven (161 litres, 8 shelves instead of 5, same footprint). You can find all sizes in the range in our Range of climate chambers & Incubators.

Distinction: TwinDISPLAY versus SingleDISPLAY, and natural convection

Anyone who can do without sensor redundancy can save money with the identical model Memmert UF110 universal oven in the basic model with SingleDISPLAY. For samples that are sensitive to dust or air movement and cannot tolerate active air circulation, the Memmert UN110plus universal oven offers the same housing, but with natural convection instead of an air turbine, and still featuring TwinDISPLAY. Anyone needing more capacity whilst maintaining the same footprint will find it in the Memmert UF160plus universal oven.

Safety according to DIN 12880, enhanced by AutoSAFETY

In addition to the adjustable electronic temperature monitoring and AutoSAFETY, the UF110plus is fitted with a mechanical temperature limiter of protection class 1 according to DIN 12880, which switches off the heating when the temperature rises to approximately 20 °C above the maximum cabinet temperature. The display also allows you to select either an adjustable temperature monitor (Protection Class 3.1) or an adjustable temperature limiter (Protection Class 2). An integrated self-diagnostic system assists with fault-finding, and three freely selectable temperature values can be calibrated. The unit bears CE and EAC markings as well as a UL mark.

Installation, operation and disposal

For operation, a minimum distance of 15 cm from the wall and a minimum distance of 20 cm from the ceiling must be maintained; a minimum of 5 cm is sufficient on either side in relation to the wall or an adjacent unit. The unit may be installed at altitudes of up to 2,000 m above sea level at an ambient temperature of 5 °C to 40 °C and a relative humidity of no more than 80 %, non-condensing. Electrically, the UF110plus is designed for overvoltage category II and pollution degree 2; it must only be transported in an upright position. The interior, made of easy-to-clean stainless steel, can be cleaned using standard laboratory cleaning agents. As an electrical appliance, the UF110plus is subject to the Electrical and Electronic Equipment Act at the end of its service life and must not be disposed of with household waste; see Regulatory information below.

Typical applications

With an internal volume of 108 litres and redundant sensors, the Memmert UF110plus universal oven is suitable for laboratories that require capacity and do not want to compromise on process reliability.

• Unattended drying of medium-sized batches overnight or at the weekend
• Tempering, ageing and firing of material samples subject to documentation requirements
• Testing and curing in quality assurance where higher safety standards are required
• Material testing in the industrial manufacture of small to medium-sized components
• A second unit to complement a UF75plus as the sample volume increases

Investment rationale: when TwinDISPLAY is worthwhile

The scope of delivery for the UF110plus includes 2 electropolished stainless steel grid shelves; the cabinet is designed to accommodate up to 5 shelves. TwinDISPLAY is particularly beneficial where processes run unattended overnight and a sensor failure would jeopardise the batch. Those who do not require this redundancy can save money by opting for the Memmert UF110 universal oven in its basic model, which is of identical construction. A fully transparent glass door is available as an option for visual inspection without opening the door, as is a programmable door lock with door-open detection and a wall bracket for space-saving installation. A USB-to-Ethernet adapter and AtmoCONTROL software licences are available for continuous logging. For pharmaceutical or standards-compliant applications, we arrange calibration, IQ/OQ/PQ and maintenance services, including DAkkS calibration on request.

Frequently asked questions before making a purchase

What exactly are the benefits of the second Pt100 sensor?
The two sensors monitor each other; if one fails, the other automatically takes over its function without the drying process having to be interrupted.

How many samples can the UF110plus hold at any one time?
Two grid shelves are included as standard; it can accommodate up to five shelves, each with a maximum load of 20 kg, for a total load capacity of up to 175 kg.

Can I place the UF110plus on a laboratory bench?
The net weight is around 74 kg with a footprint of 745 x 584 mm. Whether a laboratory bench is suitable depends on whether it can safely support this load.

Is TwinDISPLAY worth it for routine operation?
For simple drying tasks during the day, SingleDISPLAY is usually sufficient. For unattended overnight runs, the UF110plus is the safer choice compared to the Memmert UF110 universal oven.

What is the accuracy of the temperature control?
Both Pt100 sensors of DIN Class A operate using a 4-wire measurement system and achieve an accuracy of 0.1 °C up to 99.9 °C and 0.5 °C from 100 °C onwards.

Is a natural convection version available with TwinDISPLAY?
Yes, the Memmert UN110plus universal oven shares the same housing as the UF110plus, but operates without an air turbine.

Is a programmable door lock available?
Yes, a programmable door lock and door-open detection are options available exclusively on TwinDISPLAY devices such as the UF110plus.

How does the UF110plus differ from the larger UF160plus?
Both models feature TwinDISPLAY and two redundant Pt100 sensors; the UF160plus offers greater capacity, 161 litres instead of 108, and 8 shelves instead of 5, whilst occupying the same floor space, but is taller in design.

Technical details

Scope of delivery

• 1x Memmert UF110plus universal oven
• Factory calibration certificate (calibration at 160 °C)
• Fully insulated stainless steel doors with a 2-point locking system (compression door lock)
• 2x stainless steel grid shelf, electropolished

Regulatory information

The Memmert UF110plus universal oven is registered with the Stiftung Elektro-Altgeräte Register (Stiftung EAR) under WEEE registration number DE 66812464.

Individual requirements and procurement service

Accessories available for the UF110plus include full-view glass doors, interior lighting and a power socket, a wall bracket, a stacking kit, levelling feet and a USB user ID stick for TwinDISPLAY user rights. For data acquisition, a USB-to-Ethernet adapter and AtmoCONTROL software licences, including the AtmoCONTROL FDA version for 21 CFR Part 11, are available. In addition, we arrange calibration, IQ/OQ/PQ and maintenance services, including DAkkS calibration on request. Do you require any of these accessories or assistance in selecting the right universal oven for your application? Through our procurement service, we’d be happy to assist you with procurement and configuration.