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COLO.Science · Heating & Thermal Processing · High Precision Circulating Bath
CIBAC-2008HP High Precision Circulating Bath · −20 to 100 °C · 8 L · ±0.01 °C
The high precision circulating bath CIBAC-2008HP heats and cools liquid from −20 °C to 100 °C and holds it within ±0.01 °C, with a display resolution of 0.001 °C. That is the stability needed to calibrate thermometers and temperature sensors: the 8 L stainless steel tank with a 235 × 160 mm opening takes the reference and the instruments under test side by side.
Calibration-grade stability in a compact bath
CIBAC-2008HP combines a fully enclosed compressor, a 1.0 kW heater and an adjustable circulation pump in one unit. Internal circulation keeps the whole tank at the same temperature; switch to external circulation and the same liquid heats or cools a jacketed vessel, reactor or measuring cell connected through the hoses.
Key features
- Temperature −20 °C to 100 °C, fluctuation ±0.01 °C, display resolution 0.001 °C
- Stainless steel tank 280 × 250 × 140 mm, 8 L, opening 235 × 160 mm
- Pump flow adjustable 0–15 L/min, internal or external circulation
- Timer: the bath stops at the end of the set working time
- Settings kept after a power failure, automatic restart when power returns
- Low-noise enclosed compressor with environmentally friendly refrigerant, protected against overheating and overload
Suitable for
- Calibration of liquid-in-glass, resistance and digital thermometers
- Calibration of PT100 probes, thermocouples and temperature data loggers
- Validation and QC steps where a few hundredths of a degree matter
- Heating and cooling of external jacketed vessels and measuring cells
CIBAC-HP series: 6 L to 30 L, down to −40 °C
| Tank | Tank size (mm) | Opening (mm) | Models and lowest temperature (upper limit 100 °C) |
|---|---|---|---|
| 6 L | 260 × 200 × 140 | 180 × 140 | CIBAC-2006HP −20 °C · CIBAC-4006HP −40 °C |
| 8 L | 280 × 250 × 140 | 235 × 160 | CIBAC-2008HP −20 °C |
| 10 L | 260 × 200 × 200 | 180 × 140 | CIBAC-2010HP −20 °C |
| 15 L | 300 × 250 × 200 | 235 × 160 | CIBAC-2015HP −20 °C |
| 30 L | 440 × 325 × 200 | 310 × 280 | CIBAC-0530HP −5 °C · CIBAC-2030HP −20 °C |
All models: fluctuation ±0.01 °C, resolution 0.001 °C, pump 0–15 L/min. Order codes, heating power and outer dimensions of every model are in the CIBAC-HP technical specification (PDF).
Which model to choose
Choose the lowest temperature you need, then the size of what goes into the bath. CIBAC-2008HP covers −20 °C with an 8 L tank and the wider 235 × 160 mm opening. For −40 °C choose CIBAC-4006HP; for larger probes or more liquid the 10 L, 15 L or 30 L models. When ±0.1 °C is enough — cooling a rotary evaporator condenser or a reactor — the CIBAC45 cooling circulating bath is the simpler choice.
Technical specifications
Temperature and control
| Temperature | −20 to 100 °C |
| Fluctuation | ±0.01 °C |
| Resolution | 0.001 °C |
| Pump | 0–15 L/min |
| Circulation | internal / external |
| Functions | timer, auto-start after power failure |
Tank and construction
| Tank | 8 L, stainless steel |
| Tank size | 280 × 250 × 140 mm |
| Top opening | 235 × 160 mm |
| Heating power | 1.0 kW |
| Outer size (L × W × H) | 725 × 440 × 555 mm |
Values measured without external load. Ask us for supply voltage, cooling capacity, packing size and weight.
Frequently asked questions
What is the difference between ±0.01 °C stability and 0.001 °C resolution?
Stability is how much the liquid temperature moves around the set point over time; resolution is the smallest step the display shows. For calibration, the stability of the high precision circulating bath sets the contribution of the bath to the measurement uncertainty, and the 0.001 °C display lets you follow that movement.
Can CIBAC-2008HP control the temperature of an external vessel?
Yes. Switch the pump to external circulation and connect the vessel, reactor or measuring cell with hoses; the flow is adjustable from 0 to 15 L/min. Short, insulated hoses keep the external temperature closest to the bath.
Which model suits long thermometers or probes?
CIBAC-2008HP has a 140 mm deep tank with a wide 235 × 160 mm opening. For longer thermometers choose the 10 L or 15 L models with a 200 mm deep tank, or the 30 L models for many probes at once.
Bath liquid and installation
Use ethanol or a water–glycol mixture below 5 °C, pure water from 5 to 80 °C, water with about 15 % glycerol from 80 to 90 °C and silicone oil above 90 °C. Keep the liquid level below the top of the tank, leave room for oil to expand above 80 °C, keep the ventilation grilles free and connect the bath to an earthed socket.
Standard delivery
- CIBAC-2008HP high precision circulating bath with stainless steel tank, 8 L.
- Lid.
- Power cord.
- Operating manual.
The configuration for a specific order is the one confirmed in the COLO.Science quotation.
Technical documents and knowledge base
CIBAC-HP technical specification (PDF) — CIBAC-2008HP data, the full CIBAC-HP series table with order codes, bath liquids and configuration checklist. Methods and application notes: our knowledge base.
Configuration note
Tell us the working temperature range and what you calibrate — the type and length of thermometers or probes. COLO.Science will confirm the model and the delivery time 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.
