Optical Heating and Cooling Stage ACH600S-T/ACH400SV-T
Product Detail
InSitu Pro™ ACH600S-T and ACH400SV-T are the ultra-thin members of the LN₂ optical family — the same −190 °C to 600 °C heating-and-cooling engine (ACH400SV-T: to 400 °C in vacuum) packed into a body only 21.5 mm tall. When the clearance under your objective, condenser, or beam path is the limiting factor, the T variants keep full temperature-resolved microscopy and Raman capability where the standard 24 mm body will not fit.
Key features
- Thinnest profile in the familyAt 86 × 100 × 21.5 mm the T body stands 2.5 mm lower than the standard ACH600S/ACH400SV — built to fit optical instruments with extremely tight installation space, such as Horiba Raman spectrometers.
- Full −190 to 600 °C in one stageLiquid-nitrogen cooling and resistive heating in the same body; heating and cooling branches of a transition measured on one sample, one instrument.
- ±0.1 °C with three control modesFixed-point, ramp, and multi-segment programmable profiles; the provided LabVIEW VIs / C# SDK support customized programming.
- Reflection and transmission opticsHand-removable quartz windows and a through-hole silver stage support both light paths; a twist-off top cover makes sample loading and removal quick — full geometry in the table below.
- Condensation-free imagingGas-blowing bracket routes the liquid-nitrogen exhaust across the window during low-temperature runs.
- Choose your atmosphereACH600S-T runs in an atmosphere chamber for the fastest workflow; ACH400SV-T adds a vacuum chamber that suppresses oxidation during measurements (see the simulator below for why that matters).
Product specifications
| Parameter | ACH600S-T | ACH400SV-T |
|---|---|---|
| SKU # | EICH60ST | EICH4SVT |
| Heating / Cooling Method | Liquid-nitrogen cooling · resistive heating | |
| Temperature Range | −190 °C ~ 600 °C | −190 °C ~ 400 °C |
| Temperature Stability | ±0.1 °C | |
| Temperature Control Rate | Max heating 150 °C/min · max cooling 40 °C/min | |
| Sample Stage | Silver · 23 × 23 mm | |
| Optical Path | Reflection / Transmission (φ2 mm light-transmitting hole) | |
| Top Window | φ25 × 1 mm | |
| Bottom Window | φ10 × 0.5 mm (optional, for transmission path) | |
| Window Material | JGS2 quartz glass, 220–2500 nm; manually removable and replaceable | |
| Window Defogging | Gas-blowing bracket; LN₂ exhaust defogs at low temperature | |
| Window-to-Stage Distance | 4.8 mm | |
| Chamber Height | 3.8 mm | |
| Chamber | Atmosphere | Vacuum |
| Dimensions | 86 × 100 × 21.5 mm | 86 × 100 × 21.5 mm (excl. bellows) |
| Net Weight | 0.5 kg | 0.6 kg |
Basic configuration
| Included with every stage | Qty |
|---|---|
| Main unit (ACH600S-T or ACH400SV-T) | 1 |
| Temperature controller | 1 |
| Cooling controller | 1 |
| Liquid-nitrogen tank | 1 |
| Water-circulation system | 1 |
| PC control software | 1 |
| Connection cables, tubing & accessories | — |
Options include adapter plates, custom LN₂ tanks, custom water circulators, vacuum systems, host PCs, and custom control software. Final configuration and accessories are confirmed at quotation.
Plan your cooling run
Both T models cool with liquid nitrogen at up to 40 °C·min⁻¹ down to −190 °C. Set your target below and see how LN₂ compares with Peltier stages and passive cooling — and how long a run to your temperature actually takes.
Model: controller-limited linear ramp with a Newton-type approach near each technology's floor. Takeaway: below −25 °C, LN₂ is the only option — exactly what this stage family provides. Curves are schematic family-level behavior, not a guarantee for a specific unit.
Why the vacuum model? · ACH400SV-T
Above a few hundred °C in air or another oxidizing atmosphere, oxide growth on many metals and alloys becomes significant, rising steeply with temperature; under diffusion-controlled conditions it is often approximated by parabolic kinetics. Hold a sample for an hour at your working temperature and compare the two chambers:
Model: parabolic oxidation x² = k·t with an Arrhenius rate constant — an approximation for diffusion-controlled oxidation, not every material or temperature; the vacuum panel suppresses the oxidant supply. Takeaway: if your sample must come back chemically intact from high temperature, reach for the vacuum chamber of the ACH400SV-T.
The LN₂ optical family · quick navigation
| Model | ACH600S / ACH400SVstandard | ACH600S-T / ACH400SV-Tthis page | ACH600S-XY / ACH400SV-XYXY positioning |
|---|---|---|---|
| Distinctive | Standard body · R/T optics | Thinnest profile, 21.5 mm | XY ±6 mm · 0.01 mm |
| Page | Standard → | — you are here — | XY variants → |
Temperature controller, LN₂ cooling-rate controller, dewar & auto-refill pump. Every stage ships with its matched temperature controller and cooling controller; smart LN₂ auto-refill and dewar options keep long low-temperature runs unattended. Ask for the matching set when you request a quote.
FAQ
T variant or standard — which one?
Pick by clearance. If your microscope, Raman system, or beamline has generous headroom, the standard ACH600S/ACH400SV does everything the T does. If the space between your objective (or condenser) and the sample plane is tight, the T's 21.5 mm body — 2.5 mm lower — is often the difference between fitting and not fitting. Temperature performance is identical.
Is the optical performance the same?
Yes — same silver 23 × 23 mm stage, same φ2 mm through-hole, and the same 220–2500 nm JGS2 quartz optics; the optional transmission bottom window is a thinner φ10 × 0.5 mm in the T geometry. Top-window-to-sample distance is 4.8 mm and chamber height 3.8 mm.
Does the window fog during cooling?
The same gas-blowing bracket routes the liquid-nitrogen exhaust across the window to defog it, helping keep the view clear during long runs at −190 °C.
Which atmosphere should I choose?
ACH600S-T for everyday work in air up to 600 °C on oxidation-tolerant samples; ACH400SV-T (vacuum) whenever the sample must not oxidize — metals, perovskites, air-sensitive 2D materials (see the simulator above).
Related
- InSitu Pro™ Stage Selector — not sure this is the right family? Answer five questions and match the whole range with a one-click quote.
- Stage Selection Guide — the five-step decision logic behind optical vs electrical, cooling, and atmosphere, with interactive simulators.
- In-Situ Stages: A Theory Guide — the measurement science of temperature-resolved microscopy and Raman.
- Optical H&C Stage ACH600S / ACH400SV — the standard-body siblings when clearance is not a constraint.
Disclaimer: ACS Material, LLC believes the information on this page is accurate and represents the best and most current information available to us. Specifications reflect the manufacturer's current datasheet; idealized values are benchmarks and final configurations are confirmed at quotation — always refer to the model datasheet for guaranteed ratings. The interactive simulators are schematic teaching tools, not performance data for a specific unit. ACS Material makes no representations or warranties, express or implied, regarding suitability for any purpose, and will not be responsible for damages resulting from use of or reliance upon this information.