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• Vacuum Oven VO, Memmert

Vacuum Oven VO, Memmert

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$12,834.00

998 29985 $998.00 - $29,985.00

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Gentle, powerful, energy-saving: Vacuum drying oven VO

Special Order Item: No refunds or cancellations

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• Overview
• Specifications

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Reliable, comfortable and energy-efficient - that’s how vacuum drying works today. Separately adjustable and directly heated thermoshelves ensure precise temperature control and, thanks to the digital pressure control, the chamber load is not only dried at high speed but also extremely gently in our powerful and robust vacuum drying oven. Together with the speed-controlled vacuum pump, the vacuum oven VO forms an unbeatably energy-efficient duo. The pump is perfectly tidied away in the matching base cabinet.

​Significantly reduced heating-up and processing times in the vacuum drying oven

When vacuum drying large quantities of powder or granulate, the vacuum cycles, which Memmert is the only manufacturer worldwide to offer, come into play perfectly: Two vacuum values can be set, between which the pressure is oscillated under controlled conditions. This way, a large amount of dry air is admitted within a short time, which absorbs humidity and is immediately extracted by the vacuum pump.

Climate-friendly accessories: Vacuum pump saves around 70 % energy

The spectrum for vacuum drying in a Memmert vacuum oven VO ranges from foodstuffs to cosmetics, granulate, watches, books, printed circuit boards, to electronic components or injection moulds - also due to the low final vacuum of the speed-controlled, chemical-resistant vacuum pump of up to 2 mbar. The demand-oriented pump control ensures a significantly longer service life for the membranes. The energy saving potential is particularly impressive compared to an uncontrolled vacuum pump: with representative measurements in ramp operation, energy consumption was around 70 % lower, and even better values were achieved with a constant vacuum value. The speed-controlled Memmert vacuum pump is automatically detected by every vacuum drying oven VO. In the event that another vacuum pump or a central vacuum supply is connected, the vacuum is controlled via solenoid valves.

Uniquely precise: The Memmert VO direct heating system

Multi-Level-Heating & Sensing: intelligent direct heating via individually placeable thermoshelves with separate sensors guarantees short heating and process times in the Memmert vacuum drying oven. The control circuits react precisely to different loads or humidity and maintain a constant set temperature during vacuum drying. Thanks to the direct contact between the heating and the load, practically no heat loss occurs. Each thermoshelf can be individually calibrated.

A Memmert vacuum drying oven offers unique advantages

• Climate-friendly accessories: Vacuum pump saves around 70 % energyuser-friendly, intuitive operating concept
• Nearly exclusive use of high-quality, rust-resistant and easy to clean stainless steel for interior and exterior housing
• precise and homogenous temperature control thanks to a product-specific heating concept
• a wide range of options for programming and documentation using interfaces, integrated data loggers and the AtmoCONTROL software
• 3 years guarantee worldwide

Standard units are safety-approved and bear the test marks

Temperature

Setting accuracy temperature	up to 99.9 °C: 0.1 / from 100 °C: 0.5
Setting temperature range	+20 to +200 °C
Temperature sensor	temperature measured through 4-wire Pt100 sensor individually for each thermoshelf
Working temperature range	min. 5°C above ambient up to +200°C

Pressure (Vacuum)

​Vacuum range	5 to 1100 mbar
Pressure control	Digital electronic pressure control for a speed-controlled vacuum pump. Tubing for vacuum, air and inert gas are made of material 1.4571 (ASTM 316 Ti). Programmable, digitally controlled inlet for air.
Permitted final vacuum	0.01 mbar
Maximum leakage rate	0.01 bar/h
Pump control	speed control, optimised rinsing procedures for the pump membranes as well as signal output for pump ON/OFF
Connection	Vacuum connection with small flange DN16, and gas inlet with small flange DN16

Control technology

adjustable parameters	temperature (Celsius or Fahrenheit), pressure (vacuum), programme time, time zones, summertime/wintertime
Language setting	German, English, Spanish, French, Polish, Czech, Hungarian, Italian
ControlCOCKPIT	TwinDISPLAY. Adaptive multifunctional digital PID-microprocessor controller with 2 high-definition TFT-colour displays.
Timer	Digital backwards counter with target time setting, adjustable from 1 minute to 99 days
Function SetpointWAIT	the process time does not start until the set temperature is reached

​Communication

Interface	Ethernet LAN, USB
Documentation	programme stored in case of power failure
Programming	AtmoCONTROL software on a USB stick for programming, managing and transferring programmes via Ethernet interface or USB port

Safety

Temperature control	mechanical temperature limiter TB, protection class 1 according to DIN 12880 to switch off the heating approx. 10°C above nominal temperature
AutoSAFETY	additionally integrated over- and undertemperature protection "ASF", automatically following the setpoint value at a preset tolerance range, alarm in case of over- or undertemperature, heating is switched off in case of overtemperature, compressor in case of undertemperature
Autodiagnostic system	integral fault diagnostics for temperature control
Alarm	visual and acoustic

Heating concept

VO direct heating	fuzzy-supported MLC (Multi-Level-Controlling) microprocessor controller adapting its performance to the volume (local temperature sensing) for each thermoshelf
Thermoshelves	VO29: 1 connection for thermoshelves in the rear VO49/VO101:  2 connections for thermoshelves in the rear (1st and 3rd level)

Standard equipment

Works calibration certificate	for +160°C at 20 mbar pressure for each supplied thermoshelf together with the vacuum oven
Internals	1 thermoshelf of aluminim, material 3.3547 (ASTM B209) with integrated large-area heating

Stainless steel interior

Material	hermetically welded stainless steel interior of extremely corrosion-resistant stainless steel, material 1.4404
Interior	additional interior mountings of stainless steel, material 1.4404 (removable for cleaning), consisting of mounting at the sides with guide bars for thermoshelves and on top (diffusor) to avoid turbulences when aerating
Volume	VO29: 29 l VO49: 49 l ​VO101: 101 l
Dimensions W x H x D	VO29: 385 x 305 x 250 mm VO49: 385 x 385 x 330 mm ​VO101: 545 x 465 x 400 mm
Max. number of internals	2
Max. loading of chamber	VO29: 40 kg VO49/VO101: 60 kg
Max. loading per internal	20 kg

​Textured stainless steel casing

Dimensions ​W x H x D	VO29: 550 x 607 x 400 mm (d +38mm door handle) VO49: 550 x 687 x 480 mm (d +38mm door handle) VO101: ​710 x 767 x 550 mm (d +38mm door handle)
Door	full-sight glass door, inside spring-loaded, 15 mm thick glazed panel in safety glass, outside with anti-splitter screen
Housing	rear zinc-plated steel

Electrical data

Voltage

Electrical load (maximally equipped) at 230 V, 50/60 Hz

Ambient conditions

Ambient temperature	+5 °C to +40 °C
Set Up	The distance between the wall and the rear of the chamber must be at least 15 cm. The clearance from the ceiling must not be less than 20 cm and the side clearance from the wall must not be less than 8 cm.
Humidity rh	max. 80 %, non-condensing
Overvoltage category	II
Pollution degree	2

Packing/shipping data

Transport information	The appliances must be transported upright
Customs tariff number	8419 8998
Country of origin	Federal Republic of Germany
WEEE-Reg.-No.	DE 66812464
Dimensions approx incl. carton ​W x D x H	VO29: 660 x 870 x 590 mm VO49: 670 x 890 x 630 mm ​VO101: 820 x 970 x 670 mm
Net weight	VO29: 55 kg VO49: 83 kg ​VO101: ​110 kg
Gross weight carton	VO29: 76 kg VO49: 104 kg ​VO101: ​135 kg