Refrigerated Cooling STAvesta
Refrigerated cooling Thermogravimetric-Differential Scanning Calorimeter (TG-DSC)
Enables low-temperature measurements from -40°C and controlled cooling beyond conventional limits
Refrigerated Cooling STAvesta Overview
For details on the basic performance of STAvesta, please refer to the main STAvesta page.
In gas adsorption studies using CO₂ and similar gases, lower temperatures generally increase the amount of gas adsorbed. Therefore, measurements below room temperature are often required. STAvesta/LR meets this need by enabling evaluation from as low as -40°C, making it possible to analyze gases that are difficult to adsorb at ambient temperatures and to more accurately assess the performance of adsorbent materials.
The unit also allows heating up to 700°C, making it suitable for pretreatment processes such as gas desorption from materials. By utilizing programmable heating and cooling sequences, both pretreatment and adsorption/desorption analysis can be performed in a single continuous run.
In addition, the optional automatic sample changer allows for automated, continuous measurement of multiple samples.
Refrigerated Cooling STAvesta Features
Refrigerated Cooling STAvesta Specifications
| Model name | Thermo plus EVO3 STAvesta Refrigerated Cooling Simultaneous Thermal Analyzer |
|
|---|---|---|
| Technology | Thermogravimetry-Differential Scanning Calorimeter (TG-DSC) | |
| Measurement temperature range | Measurement temperature range -40 to 700°C | |
| Heating range(max) | 20°C/min | |
| Cooling rate | 5°C/min up to 0°C 10°C/min up to 100°C |
|
| Sample amount (max) | 1g (90 μL) | |
| TG range | ± 500 mg | |
| DSC range | ± 600 mW (100°C) ± 1,400 mW (1,000°C） ± 3,000 mW (1,500°C） |
|
| DTA range | ± 1,000 μV | |
| Measurement atmosphere | Dry gas (Simulated air, inert gas N₂, Ar, He) | |
| Gas flow type | Two-way type Protection tube atmospheric gas (simulate air, inert gas) 50 to 1000 mL/min Electric furnace purge gas (simulate air, inert gas) 200 mL/min |
|
| Options | Automatic sample changer (Sample: 52, reference: 3, calibration sample: 5) Power ON/OFF unit Refrigerated cooling safety cover |
|
| Dimensions | STAvesta 412(W) x 422(H) x 601(D)(mm) 412(W) x 705(H) x 601(D)(mm) (with ASC) Refrigerator 295(W) x 570(H) x 500(D)(mm) |
|
| Mass | STAvesta 50 kg 60 kg (with ASC), 66 kg (with ASC and safety cover) Refrigerator 61 kg |
|
| Power requirements | STAvesta 1Ø, AC100-120 V/200-240 V, 50/60 Hz, 15 A Refrigerator 1Ø, AC100 V, 50/60 Hz, 15 A |
|
Refrigerated Cooling STAvesta Options
The following accessories are available for this product:
Gas Selector
Links to the measurement program and switches the gases flowing into the sample chamber.
Flow Meter
The flow meter controls the flow rate of the atmospheric gas (inert gas, air, etc.) supplied to the sample chamber.
2ch-FLOW COMPO Jr.
Enables gas flow, flow rate setting and switching of gases with precision specified in the measurement program. Gas types and full scale can be selected.
Sample Pan
Depending on the sample to be measured (especially if the sample is metal), it may melt the sample pan and damage the sample holder or other parts of the instrument.
Sample sealer / Sample crimper
A sample pan shaping tool with three functions: sample crimper, sample sealer, and high-pressure sample sealer.
ASC for STAvesta
Optional ASC (Auto Sample Changer) for greater throughput Upgradeable with ASC for automated measurements
DSC Ozawa method/TG Ozawa method
In this method, the activation energy can be estimated from more than three measurements with different heating rates, estimating the time to reach a defined degree of conversion.
_ja.png)
Dynamic DSC (STA)
This method involves applying a sine-wave modulation to the traditional constant heating rate during measurements. By using this feature, specific heat measurements up to 1500°C can be easily conducted.
Refrigerated Cooling STAvesta Application Notes
The following application notes are relevant to this product
-
B-TA1043 - Evaluation of CO₂ adsorption below room temperature
-
B-TA1044 - Vaporization rate of H₂O below room temperature
Contact Us
Whether you're interested in getting a quote, want a demo, need technical support, or simply have a question, we're here to help.