Select an article below for information about a Summit Spectrometer sampling accessory or the purge kit.
Purging the spectrometer with dry air or nitrogen protects the internal components from moisture and other environmental contaminants. Installing the purge kit requires you to assemble the valves and regulators, replace the desiccant cartridge, connect the purge gas, and set the pressure and flow rate.
WARNING Never use a flammable, combustible, or toxic gas to purge this instrument. The purge gas must be free of oil and other reactive materials. Heat from the source or from laser absorption may ignite flammable gases or reactive materials in purge gas. Use only dried air or nitrogen to purge your instrument.
NOTICE We recommend maintaining the seal and desiccating and/or purging the instrument at all times. The warranty does not cover damage caused by a failure to properly desiccate or purge the instrument. If you have questions about this requirement, please contact us.
Before installing the purge kit, you will need a source of dry air or nitrogen that meets Thermo Scientific specifications for the Nicolet Summit Spectrometer. See the instrument’s Site and Safety guide for details.
Note For best results, dry the purge gas to a dew point of -70 °C (-94 °F) or below.
Your purge kit includes the following:
In addition to the purge kit, you will need the following tools and materials:
WARNING Before opening the desiccant compartment, turn off the instrument power, unplug the power cord and remove all accessories and samples from the system. Entry of flammable liquids or gases into the desiccant compartment is an explosion hazard. If such entry occurs, contact us immediately and do not apply power to the instrument until the condition has been corrected.
Note If the standard desiccant cartridge is stored in a dry box or sealed bag (you can use the bag the purge cartridge came in), the cartridge can be reused.
|Hardware||Pressure (psig)||Flow Rate (scfh)|
|iD1 Transmission Accessory||5||4-10|
|iD3 ATR Accessory||5||4-10|
|iD5 ATR Accessory||5||4-10|
Correctly setting your purge gas controls will protect your spectrometer from humidity without introducing vibration.
For best results, the purge gas should be dried to a dew point of -70 °C (-94 °F) or below.
NOTICE Flow rates greater than recommended values can cause vibration, which can affect the quality of your data.
Replace the purge filter when it is yellow, or otherwise discolored, or if it is contaminated with debris or foreign particles.
NOTICE We recommend maintaining seal and desiccation and/or purging the instrument at all times. Equipment damage due to failure to maintain seal and desiccation and/or purge is not covered under the warranty. If you have questions about this requirement, please contact us.
Figure 1. The purge filter is located inside of the plastic bowl below the pressure gage
The Thermo Scientific™ Nicolet™ Summit FTIR Spectrometers are compatible with Thermo Scientific™ Nicolet™ iS5 iD sampling accessories and hundreds of other third-party accessories.
For instructions on installing a sampling accessory, see “Install a Sampling Accessory.”
With the following accessories and adapters, the Summit spectrometer can quickly and easily measure a wide range of samples.
The Thermo Scientific Everest ATR Accessory is a high-performance, versatile single-bounce attenuated total reflectance accessory and is ideal for analyzing liquids, solids, pastes, or powders. The Everest ATR accessory was specifically designed to fit Summit spectrometers.
The iD1 Transmission accessory is convenient for sampling films, pellets, liquids, and gases and fits a wide range of transmission accessories. The sample compartment fits gas cells and cuvettes up to 10 cm.
Contact us for more information.
The iD5 and iD7 ATR accessories—designed for the Nicolet iS5 Spectrometer—are alternatives to the Everest ATR accessory. While these ATR accessories are excellent multi-purpose accessories, the Everest ATR accessory is recommend for use with Summit spectrometers.
For details, see “iD5 ATR Accessory for the Nicolet iS5 Spectrometer.” or “iD7 ATR Accessory for the Nicolet iS5 Spectrometer.”
The iD Base Adapter accommodates a wide variety of third-party accessories for FTIR sampling, including large transmission accessories and other specialized accessories. Pair the iD Base Adapter with the slide mount sample holder for even more options.
For details, see “iD Base Adapter.”
Pair a slide mount sample holder with the iD Base adapter to use slide-mounted accessories that are too large for the iD1 Transmission accessory.
Contact us for more information.
The Thermo Scientific Golden Gate ATR Accessory features a sapphire anvil for high pressure contact and a rugged exterior, allowing you to analyze a range of samples, from single particles and fibers or hard solids to corrosive liquids. The Golden Gate ATR Accessory is also ideal for macro sampling.
For details, see “Golden Gate ATR for Nicolet iS5 FTIR Spectrometer.”