- Add LN2-P4D3 Cooling System

4-stage LN2 suction pump cooling system with 3L LN2 Dewar

PN: LN2-P4D3

- Add LN2-P8D10 Cooling System

8-stage LN2 suction pump cooling system with high-capacity 10L

 LN2 Dewar

PN: LN2-P8D3

Window Size and Viewing Angle

The standard HCS421VXY has a vacuum-tight chamber lid with a viewing aperture of 18mm (22mm glass window) with a viewing angle of ±57.0° from 

normal. For applications which require a larger observation area and/or a larger viewing angle, alternate chamber lids are available. Larger window sizes 

increase the viewing area and angle, but comes at the cost of slightly reduced temperature uniformity. Customization of the bottom viewing aperture 

is possible, but requires upgrading to the HCS421VXY+ model. If large observation windows are required on both the top and bottom surfaces, take a look at Instec's -IRM stage models. 

- 18mm aperture lid (Standard)

PN: R0220-HCS421VXY

- 27mm aperture lid 

PN: R03170-HCS421VXY

Window Material

The HCS421VXY utilizes removable and exchangeable windows to optimize performance for any wavelength. Base-model options are 

shown below, but specialized options are available per request with the HCS421VXY+ model.

Note: The exact window part number depends on desired chamber lid, as multiple sizes are available

- Quartz Glass (Standard)

PN: WQ1

- BaF2 Glass for IR

PN: WBaF2

- ZnSe Glass for IR

PN: WZnSe

- CaF2 Glass for IR

PN: WCaF2

- Saphire Glass for UV/IR

PN: WSP

Sample Mounting

The HCS421VXY is typically used in a horizontal configuration with the integrated XY positioners and uses gravity to secure the sample against the thermal block. In cases where more thermal contact is required, samples are not perfectly flat, or a special mounting solution is desirable, alternate sample 

mounting options are available for the HCS421VXY. Threaded holes on the sample area are included with each HCS421VXY base model, and a 

set of up to 3 spring loaded sample clips can be added to conveniently secure tricky samples, or to secure sample when the stage is used in a vertical 

configuration. 

Note: Spring-loaded sample clips are NOT compatible with the Integrated XY positioners when used with certain samples (ie. very thin microscope slide covers). Consult sales@instec.com for more information on whether your sample may be used in a vertical configuration. 

- Threaded holes on thermal block (Standard)

Hole dimensions available by request

PN: HCS421VXY

- Add up to 3X sample clips

Spring loaded stainless steel sample clips

PN: SFC-HCS421VXY

Environmental Control

With its vacuum-tight chamber, the HCS421VXY base model is capable of positive pressure gas-purge up to 0.5 Bar or evacuation down to 10^-3 mBar. 

Environmental control options available for the HCS421VXY can increase the vacuum pressure limit to add high-vacuum compatibility [10^-6 mBar], or 

humidity control functionality via our RHC01 relative humidity controller. 

- Rough Vacuum [10^-3 mBar]

/ +0.5 Bar gas-purge (Standard)

PN: HCS421VXY

- High Vacuum [10^-6 mBar]

PN: HCS421HVXY+

- Add Humidity Control with RHC01

PN: RHC01

Vacuum Port Configuration

By default, the HCS421VXY comes with 1 stainless steel vacuum bellows and one aluminum vacuum blank. 

For easy use with external vacuum gauges, the stage can be configured with a second vacuum bellows that can easily be removed or installed as needed. Secondary vacuum bellows are sold separately, or can be pre-installed before delivery. 

- 1x SS vacuum bellows, 1x vacuum blank F0V 

(Standard)

PN: HCS421VXY

- 2x SS vacuum bellows + 1x vacuum blank F0V

PN: HCS421VXY-SSKF16 

Mounting Adapters

Mounting adaptors allow the HCS421VXY to be easily mounted onto your optical instrument of choice. All HCS421VXY models include side-mounted 

L-brackets and tapped holes on the base for easy mounting to any instrument. Optional mounting adaptors are available for Instec's TPM-CX40, 

Olympus, Leica, and many more microscope models. For the full list of mounting adaptors, contact sales@instec.com.

Note: Vertical mounting configurations may require sample fixture clips (SFC) to ensure compatibility. 

- None (Standard)

- Vertical 

- Horizontal

- Vertical with rotation

- 2mm aperture (Standard)

- 4mm aperture

PN: AP4-HCS421VXY

Electrical Feedthroughs

For applications that require optical access with simultaneous temperature control and electrical testing, a range of vacuum-tight electrical feedthroughs 

may be added to the HCS421VXY+ customizable model. The HCS421VXY+ supports up to 2 additional standalone electrical feedthroughs, which may 

consist of a combination of up to 2 of any electrical feedthrough types. BNC type feedthroughs are available in two configurations: Grounded, where the 

outer BNC conductor is connected to earth ground for shielding, and Floating, where the outer BNC conductor is left floating relative to earth ground 

allowing the shielding conductor to be used as a second signal conductor. The Floating BNC configuration includes a second pogo-pin terminal for 

each feedthrough. 

- 1x or 2x vacuum blanks (Standard)

PN: F0V-HCS421VXY

- 1x or 2x Grounded BNC Connectors with pogo pin 

terminals

PN: F1V-HCS421VXY

- 1x or 2x Floating BNC Connectors with 2x pogo pin terminals each 

PN: F2V-HCS421VXY

- Customized standalone electrical feedthrough (DB-9, ribbon-cable, fiber optic, RF and much more!)

Electrically Biased Sample Area

For some applications, applying an electrical bias to the back of a sample is essential. in such cases, the HCS421VXY can be customized to include an 

electrically floating surface area that may be biased via an electrical feedthrough. 

- Electrically Grounded (Standard)

- Electrically Floating with Electrical feedthrough 

for applying bias 

PN: HCS421VXYF

Upgraded Temperature Controller Options

The HCS421VXY is designed for use with Instec's mK2000 series temperature controllers. While the switching PID controller is recommended for most 

applications, in cases where low electrical noise is critical, the temperature controller may be upgraded to an LVDC output model. Furthermore, the 

mK2000 itself can be customized with various add-on options such as additional monitoring sensors, analog voltage output and more....

- mK2000B with switching PID output (Standard)

PN: mK2000B

- mK2000B with LVDC output upgrade

PN: mK2000B-LVDC

- Additional monitoring sensor for mK2000B

PN: mK2000B-TMK

- Advanced controller upgrades (see mK2000B 

page for details)

Ask sales@instec.com for more details

Custom Options

If you can imagine it, Instec can make it! Instec offers complete customization services to tailor any of our standard products to your unique application. 

- KBr, Kapton windows with custom lid

- Custom covers

- SMA feedthroughs

- Floating surface area with Triaxial BNC

- Custom sample holder

... And much more!

Temperature Range

-190°C to 600°C

-190°C to 400°C

RT to 1000°C

-40°C to 120°C

-190°C to 400°C

Atmospheric   Control

✓

✓

✓

✓

✓

Sample Area

Ø28mm

Ø28mm

16 x 16mm

42mm x 42mm

38mm x 50mm

Sample   Cooling

LN2

LN2

– *

TEC

LN2

Thermal Block

Silver

Silver

Silicon Carbide

Anodized Aluminum

Anodized Aluminum

Electrical   Feedthroughs

Up to 4

Up to 6

Up   to 4

Up to 4

Up to 4

XY Manipulation

✓

✓

✓

✓

HCP621G heating and cooling plate with Ø28mm sample   area. Temperature range -190°C to 600°C. Gas tight chamber with gas purge   capabilities. Includes option to add electrical feedthroughs. Has a higher   max temperature, but does not have a    transmission aperture, and does not support evacuation. Highly   compatible with reflection-mode optical instruments.

HCS601GXY-IRM FTIR heating and cooling stage with 24mm x 24mm   sample area. Temperature Range -190°C to 600°C. Gas tight chamber with gas   purge capabilities. CWD=10.5mm WD=10.5mm, cone angle>100°C. Includes IR   windows. Has a wider temperature range, but a slightly smaller sample area,   and is optimized for IR applications.

HCS350G-TNS heating and cooling stage for tensile force   measurements. 26mm x 16mm sample area. Temperature range -190°C to 350°C. Gas   tight chamber with gas purge capabilities. Apply up to 200 N force. Specialized   for experiments requiring applied force control with simultaneous optical   access.