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For the analysis of liquids or solids between -190ºC and 250ºC
The Variable Temperature Cell Holder P/N GS21525 is the ideal accessory to use for the transmission study of liquid
or solid samples at various temperatures ranging from -190ºC to 250ºC.
The Variable Temperature Cell Holder consists of a vacuum jacket with two window ports and a set of windows (NaCl as standard) which contains a refrigerant dewar/cell holder assembly. Liquid or solid sample holders are inserted into the heating block part of the dewar/cell holder and the assembled cell is operated within a vacuum environment maintained by the outer jacket.
Using a combination of refrigerant and control from the cell block heaters any temperature from -190ºC to 250ºC can be achieved. Choice of window materials for both the jacket and sample cell holders allows for use of this accessory in the UV, visible and IR regions.
The Variable Temperature Cell Holder is supplied with a high stability controller with a factory fitted option for control via RS232, RS485 or USB connectivity if ordered.
For certain applications such as Raman, Fluorescence and UV spectral measurements Specac offer a four window port version on the vacuum jacket as the Variable Temperature Cuvette Holder (GS21530), special quartz glass cuvettes are used to contain a liquid sample. The four window ports allow for collection of the scattered radiation from a cuvette cell at a 90 deg incident angle as well as at a 180 deg (standard tranmission) as measured from the Variable Temperature Cell Holder (GS21525)
Key Features
- Programmable controlled temperatures from -190ºC to 250ºC (Stability ±0.1ºC)
- Dewar cooling system
- Heated Jacket windows to prevent condensation
- Flow mode option kit for liquids
- Solid sample gas exchange capability
- Benchmark Baseplate or 3” x 2” mounting options
- Analysis under extreme temperature conditions
- Absorption band study at low temperatures
- Polymerization studies
- Phase transition studies
- Reaction kinetics
- Polymorphism
- Catalysis
- Oxidation studies
Ordering Information
| GS21525 | The Variable Temperature Cell holder Includes: Refrigerant dewar/cell holder Vacuum jacket with NaCl windows Fixed thermocouple (copper-constantan) Low voltage supply cables High Stability Temperature Controller with factory fitted option for control via RS232, RS485 or USB connectivity if ordered This accessory also requires a liquid or solids sample holder |
| Please specify spectrometer make and model for Baseplate version. For controller specify 220V or 110V and country of usage | |
| GS21530 | 4 Port Variable Temperature Cuvette holder Includes: Refrigerant dewar/cell holder Vacuum jacket with NaCl windows Fixed thermocouple (copper-constantan) Low voltage supply cables High Stability Temperature Controller with factory fitted option for control via RS232, RS485 or USB connectivity if ordered |
| Please specify spectrometer make and model for Baseplate version. For controller specify 220V or 110V and country of usage | |
| Replacement Windows for Variable Temperature Cell (copper-constantan) | |
| GS20800 | Pair of NaCl windows |
| GS20801 | Pair of KBr windows |
| GS20802 | Pair of CaF2 windows |
| GS20803 | Pair of BaF2 windows |
| GS20896 | Pair of ZnSe windows |
| GS20898 | Pair of Spec B (UV) windows |
| Spares for Variable Temperature Cell holder | |
| GS20200 | Monitoring Thermocouple (copper-constantan) |
| GS20201 | System Control Thermocouple (copper-constantan) |
| GS20810 | Replacement set of O-rings |
| GS21526 | VT Cell Holder ESK |
| Options | |
| GS28000 | RS232 Connection kit |
| GS28001 | USB Connection kit |
| GS28002 | RS485 Connection kit |
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