'/%3E%3C/svg%3E){kind=small}
COLO.Science · Heating & Thermal Processing · Laboratory Drying Oven
DRYSB Drying Oven with Temperature Limiter · LCD Controller · 30 to 125 L · up to 300 °C
The DRYSB drying oven with temperature limiter dries, heats and sterilises glassware and samples from 10 °C above room temperature up to 300 °C. It works by natural convection, without a fan, and its LCD controller is combined with an independent temperature limiter that protects the samples if the controller fails. Five sizes share the same functions: 30 L (PRO4644), 45 L (PRO4645), 65 L (PRO4646), 85 L (PRO4647) and 125 L (PRO4648).
Drying ovens · choose the series
DRYSA18Dry sterilizer18 L · no fan · LED
DRYSANatural convection30–125 L · no fan · LED
DRYSBNatural convection, LCD30–125 L · temperature limiter
DRYSDWith fan30–625 L · faster drying · LED
DRYSEWith fan, LCD30–230 L · adjustable fanAll drying ovens →DRYSB models and order codes
| Model | Order code | Chamber volume | Inner chamber W × D × H | Exterior W × D × H | Heating power |
|---|---|---|---|---|---|
| DRYSB30 | PRO4644 | 30 L | 310 × 310 × 310 mm | 450 × 510 × 695 mm | 0.8 kW |
| DRYSB45 | PRO4645 | 45 L | 350 × 350 × 350 mm | 500 × 550 × 735 mm | 1.2 kW |
| DRYSB65 | PRO4646 | 65 L | 400 × 360 × 450 mm | 550 × 550 × 840 mm | 1.6 kW |
| DRYSB85 | PRO4647 | 85 L | 450 × 420 × 450 mm | 590 × 610 × 830 mm | 2.0 kW |
| DRYSB125 | PRO4648 | 125 L | 500 × 450 × 550 mm | 636 × 680 × 915 mm | 2.5 kW |
Every DRYSB drying oven with temperature limiter has the same LCD controller and stainless-steel chamber; the five sizes differ in chamber size and heating power. Not sure which size you need? Send us what you dry and how much per run, and we will propose the model.
Drying oven with temperature limiter with LCD controller and timer
In the DRYSB drying oven with temperature limiter the warm air rises from the heater through the chamber by itself. There is no fan, so the oven is quiet and does not disturb powders and light samples. The LCD display shows the measured temperature and the setpoint. The independent limiter switches the heating off if the temperature goes above the value you set on it. The timer runs from 0 to 9999 minutes.
Key features
- Temperature RT+10 °C to 300 °C, resolution 0.1 °C
- Natural convection, no fan
- PID controller with LCD display and timer 0–9999 min
- Independent temperature limiter and over-temperature protection
- Mirror stainless-steel chamber, 2 shelves supplied
Suitable for
- Drying glassware, powders, soil, food and other samples
- A drying oven with temperature limiter for drying to constant mass, for example at 105 °C
- Hot-air sterilisation of glass and metal items
- Heat treatment, ageing and curing tests up to 300 °C
Why a temperature limiter?
The limiter is a second, independent safeguard next to the controller. You set a limit slightly above the working temperature; if the temperature goes above it for any reason, the limiter switches the heating off. A drying oven with temperature limiter is therefore the safer choice for valuable or heat-sensitive samples and for long runs. It needs no special installation: a level bench and an earthed socket are enough. The limiter is set separately, independently of the controller.
If you do not need the limiter, the DRYSA series has the simpler LED controller; for a fan see the DRYSD series or the laboratory drying ovens overview .
Technical specifications
Temperature and control
| Air circulation | natural convection, no fan |
| Temperature range | RT+10 °C to 300 °C |
| Resolution | 0.1 °C |
| Temperature fluctuation | ±1 °C |
| Temperature uniformity | ±3.5 % |
| Control | PID controller, LCD display, keys |
| Timer | 0–9999 min, with timing-wait function |
| Sensor | Pt100 |
Chamber, housing and supply
| Chamber | mirror stainless steel |
| Housing | cold-rolled steel, powder-coated |
| Shelves | 2 supplied; 15 kg per shelf |
| Exhaust port | Ø 28 mm on top, also usable as a test hole |
| Protection | independent temperature limiter; over-temperature protection |
| Supply | 220 V, 50/60 Hz; 110 V on request |
| Insulation | silicate insulation board |
The setpoint must be at least 10 °C above room temperature. Shelf positions are 35 mm apart.
Operating functions
PID controller with LCD display
The PID controller holds the set temperature and corrects itself by self-tuning. Settings are kept after a power cut, and the parameters can be locked.
Timer and protection
Set the timer from 0 to 9999 minutes; the oven stops heating at the end of the set time. Over-temperature protection is built in. Do not dry flammable, explosive or solvent-containing materials.
Sizes
The drying oven with temperature limiter is available in five chamber sizes, 30, 45, 65, 85 and 125 L, with the same functions. Two shelves are supplied with every oven and further shelves can be ordered. Shelf positions are 35 mm apart, so the layout can follow the height of the items.
Construction, installation and care
The chamber is mirror stainless steel and the housing is powder-coated cold-rolled steel. Place the oven level, with free space around it and around the exhaust port, and connect it to an earthed socket. Clean it cold, with neutral detergent and a dry cloth; do not use acids or alkalis.
Standard delivery
- DRYSB drying oven with temperature limiter in the chosen size, with 2 shelves.
The configuration for a specific order is the one confirmed in the COLO.Science quotation.
Technical documents and knowledge base
DRYSB technical specification (PDF) — all five sizes, specifications and configuration checklist. Methods and applications are explained in our knowledge base.
Drying oven series compared
COLO.Science drying ovens differ in air circulation, controller, maximum temperature and size. The DRYSB drying oven with temperature limiter is the choice when quiet drying must be combined with extra protection of the samples.
| Series | Air circulation | Controller | Max. temperature | Chamber volume |
|---|---|---|---|---|
| DRYSA18 | natural convection | LED | 300 °C | 18 L |
| DRYSA | natural convection | LED | 300 °C | 30–125 L |
| DRYSB (this page) | natural convection | LCD, temperature limiter | 300 °C | 30–125 L |
| DRYSD | forced air | LED | 300 °C | 30–625 L |
| DRYSE | forced air | LCD, adjustable fan, temperature limiter | 300 °C | 30–230 L |
| DRYSC | forced air, low, wide housing | LED | 250 °C | 43–225 L |
| DRYSCN | natural convection, low, wide housing | LED | 250 °C | 43–225 L |
| DRYBF | forced air | LED | 250–300 °C | 640–3070 L |
Vacuum drying ovens: DRYVA, DRYVE and DRYVH series, 25 to 215 L.
How to choose
- 30–45 L — small bench-top ovens for glassware and a few samples.
- 65–85 L — daily drying in a routine laboratory.
- 125 L — the largest chamber of the series, for larger loads.
- Without limiter — the DRYSA series has the same sizes with the simpler LED controller.
- A fan or another controller? See the laboratory drying ovens overview .
Configuration note
To choose a drying oven with temperature limiter, tell us what you dry, the load per run and your working temperature. COLO.Science will confirm the model in the quotation.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
