ZX2 Thermal
Modulator

For applications requiring modulation across the n-C9+ carbon range, use the ZX2 system to eliminate consumable cryogens. A floor mounted refrigerator cools dry nitrogen gas to form the cold jet. Note: As with the ZX1, admitting cold gas to the GC oven does not appreciably affect oven temperature. (All necessary hoses are supplied, though not featured in diagrams at right.)

ZX2 Thermal
Modulator

For applications requiring modulation across the n-C9+ carbon range, use the ZX2 system to eliminate consumable cryogens. A floor mounted refrigerator cools dry nitrogen gas to form the cold jet. Note: As with the ZX1, admitting cold gas to the GC oven does not appreciably affect oven temperature. (All necessary hoses are supplied, though not featured in diagrams at right.)

  • Features
  • Specifications

Features

  • Consists of the following modules
    • Floor Refrigerator (no cryogenic consumables)
    • Programmable Logic Controller (PLC)
    • Human-Machine Interface (HMI)
    • Valve Assembly
    • Top Plate Assembly
    • Vacuum Insulated Transfer Line
    • Head Clamp Assembly
  • All cables, hoses, and assembly tools are supplied
  • Modulates nC8 - nC30 routinely, and nC8 - nC45 with cold jet flow control*

Other features are the same as the ZX1 thermal modulator:

  • Accommodates Two Parallel Column Sets ("two modulators for the price of one")
  • Compatible with most commercially available GC systems.
  • No moving parts. High reliability.
  • Open construction. No modulation chamber.
  • Effortless Modulator Tube Mounting
  • Admitting cold gas into the oven, via the cold jet, does not appreciably affect oven temperature.
  • May be supplied turnkey, with GC system, or retrofitted on user's GC
  • Users can install the system in about 2 hours.
  • Zoex personnel can install at user's site, subject to Covid-19 restrictions.

* User-supplied. 

ZX2 Thermal Modulator Specifications
Two-stage loop modulation; one cold jet and one hot jet
No moving parts
Hot Jet temperature: Up to 450 oC
Cold Jet Temperature: As low as -90o C
Modulation period: Set range: 0 to 32 seconds Recommended: 3 to 32 seconds Note: Set Modulation Period should be greater than the Hot Jet Pulse Duration
Hot Jet Pulse Duration Set range: 0 to 32 seconds
N2 Consumption: 18 SLM per jet max
Cooling System Chiller:
Continuous cooling without liquid nitrogen
Maximum cooling temperature: Minimum -90oC inside cold jet nozzle
SS vacuum insulated cold gas delivery line. 30” long (76.2cm)
Cooling probe: 15 in/38.1 cm flexible hose
Compressor: 2 stage compressors
Dimensions: 21x15x20.125” / 53.34x38.1x51.12 cm
Electrical: 120V/60 Hz/11.5A or 240V/50Hz/7.5A
Weight: 170 lbs / 77 kg
Secondary Oven (Optional)
  • Control secondary column temperature independently of main oven
  • Temperature control through main instrument control software.
  • Easy, drop-in column installation
  • Able to hold two secondary columns of up to 20m each
  • Lead main oven temperature up to 40o C
  • Lag main oven temperature with external air cooling flow to secondary oven
  • Temperature ramp rate up to 5o C /min
  • Dimensions 6" x 4"x 2.1875" (152mm x 102mm x 51mm)

Contact Us

To get a quote, call our office and one of our dedicated representatives will assist you.

  • 12221 Fuqua Street, Suite A
  • info@zoex.com
  • +1 281 484 2828 (office)
  • + 1 866 904 2942 (toll free)
    Fax: +1 281 484 0808

Contact Us

To get a quote, call our office and one of our dedicated representatives will assist you.

  • 12221 Fuqua Street, Suite A
  • info@zoex.com
  • +1 281 484 2828 (office)
  • + 1 866 904 2942 (toll free)
    Fax: +1 281 484 0808

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