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Summary of Contents for Thermo Scientific Nicolet Series
- Page 1 Nicolet Series FT-IR Spectrometers Nicolet iS20 User Guide 269-335700 Revision A November 2018...
- Page 2 © 2018 Thermo Fisher Scientific Inc. All rights reserved. Microsoft, Windows and Excel are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. All other trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries.
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Page 3: Table Of Contents
Regenerating the Desiccant ........26 Thermo Scientific... - Page 4 Error Messages..........33 Nicolet iS20 User Guide Thermo Scientific...
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Page 5: Welcome
Welcome The Thermo Scientific™ Nicolet™ iS™20 spectrometer has integrated validation features, a powerful software suite, and many other features that make it easy for you to collect data. It was designed to allow you to install optional hardware and perform several service and maintenance procedures yourself, and this help system, or electronic documentation, contains detailed information about performing such procedures. -
Page 6: About The Help System
To copy the diagnostics log to your Windows desktop, start OMNIC software and choose File > Copy Diagnostics File to Desktop. Attach this file to an e-mail message to our Technical Support group. Nicolet iS20 User Guide Thermo Scientific... -
Page 7: Operation
• Sample button. Measures the current sample installed in the instrument sample compartment. The sample data is ratioed with the background data, which leaves only the signals from the sample. Thermo Scientific Nicolet iS20 User Guide... - Page 8 Solid-pulsing yellow light—Scheduled maintenance required. For more information, click the System Status icon (shield) in OMNIC software. See the OMNIC Help system for details. – Quick-pulsing red light—Instrument requires attention. For more information, see System Status in OMNIC software. Nicolet iS20 User Guide Thermo Scientific...
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Page 9: Installing A Smart Accessory
Collecting Data With the Module You must use Thermo Scientific™ OMNIC™ software to collect data. OMNIC can be started by using the OMNIC shortcut on your system desktop. For additional information, please see the OMNIC help (available through the Help menu in OMNIC) or the printed documentation that came with the system microscope or spectrometer. -
Page 10: Setting The Purge Gas Controls
1. Open the shutoff valve. 2. Adjust the pressure regulator until the gauge indicates that the pressure is between 0.7 and 1.4 bar (70 to 140 kPa, or 10 to 20 psig). Nicolet iS20 User Guide Thermo Scientific... -
Page 11: Aligning Your Spectrometer
For optimum system performance, verify the laser frequency according to the following schedule: Spectrometer environment Spectrometer state Recommended Schedule Stable Always powered on every 3 months Unstable (e.g., temperature or Powered on and off every day or once a week humidity constantly changing) frequently Thermo Scientific Nicolet iS20 User Guide... -
Page 12: Cooling A Detector
• A small plastic laboratory funnel • A one-liter, metal vacuum bottle • Liquid nitrogen Note • A detector dewar should maintain its insulating vacuum for several years. If the vacuum leaks, the insulation will lose effectiveness. Nicolet iS20 User Guide Thermo Scientific... - Page 13 3. Insert the funnel into the detector dewar and pour the liquid nitrogen slowly into the funnel. (A small amount of liquid nitrogen typically spills out of the funnel. This will not harm your instrument.) Thermo Scientific Nicolet iS20 User Guide...
- Page 14 5. Wait until the vapor plume disappears, and then replace the plastic stopper and close the dewar cover. 6. Wait 20 minutes, and then repeat the preceding steps to make sure the dewar is completely filled. Nicolet iS20 User Guide Thermo Scientific...
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Page 15: Installing Or Replacing Hardware
1. Install a shutoff valve and either a 1/4 inch male fitting or a 3/8 inch female fitting on the purge gas source. (Choose a shutoff valve and fittings that are appropriate for the purge gas source.) Thermo Scientific Nicolet iS20 User Guide... - Page 16 3. Wrap the reducing nipple or the 1/4 inch male fitting with Teflon pipe tape, and then install the pressure coupling. Use a 3/4 inch open-ended wrench to tighten the connection. 4. Install the purge filter, pressure regulator and flow meter, and then snap the assembly into the pressure coupling. Nicolet iS20 User Guide Thermo Scientific...
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Page 17: Installing A Sample Compartment Extension Kit
2. Place the sample compartment extension on the front of the sample compartment. Make sure the pins in the same compartment base fit into the holes in the sample compartment extension. Thermo Scientific Nicolet iS20 User Guide... -
Page 18: Installing Baseplate-Mounted Accessories
Then orient the baseplate with the finger hole toward the front and lower the baseplate into the sample compartment. The baseplate fits over several alignment pins, which hold it in place. Nicolet iS20 User Guide Thermo Scientific... -
Page 19: Installing Slide-Mounted Accessories
NOTICE Your accessory must be mounted on one of our baseplates. If it is not, you can remove an accessory from one of our baseplates and install your accessory on that baseplate, or visit our web site at www.thermo.com/spectroscopy for assistance. Thermo Scientific Nicolet iS20 User Guide... -
Page 20: Replacing The Power Supply
5 minutes or less Tools needed: None NOTICE Use only Thermo Scientific certified replacement parts. To order parts, contact WARNING • To avoid a shock hazard, do not attempt to remove the cover of the power supply. • Before you replace the power supply, always make sure you have turned off your instrument and disconnected the power supply from the wall outlet or power strip. -
Page 21: Changing The Source
• Alternate or duplicate source NOTICE • Use only Thermo Scientific certified replacement parts. To order parts, contact us. • Never touch a source element with your bare fingers. Skin oils or other deposits on the element will shorten its life. Always use clean finger cots, gloves, or clean laboratory tissue when handling a source. - Page 22 (The screws are captive, so you only need to loosen them until they spin freely.) Note Do not to twist the source as you remove it, and do not touch the electrical contacts or the source element. 3. Remove the current source. 4. Insert the new source. Nicolet iS20 User Guide Thermo Scientific...
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Page 23: Installing Sidewall Adapters
Note To remove a sidewall adapter, press the adapter ring toward the sidewall to compress the purge gasket and then slide the adapter up out of the clips on the side of the sample compartment. Thermo Scientific Nicolet iS20 User Guide... -
Page 24: Maintaining Your Instrument
Never allow any liquid to come into contact with a window or optical component in the instrument Nicolet iS20 User Guide Thermo Scientific... -
Page 25: Static Electricity Precautions
Note You can restore the vacuum in a detector dewar if you have the proper equipment. The vacuum must be pumped to approximately 5x10 torr. A special evacuation valve for pumping out dewars is available from us. To order a dewar evacuation valve, contact us. Thermo Scientific Nicolet iS20 User Guide... -
Page 26: Checking The Humidity Indicator
Time needed: Less than 1 minute Tools needed: Gloves, finger cots, or laboratory tissue Replacement humidity indicator NOTICE Use only Thermo Scientific certified replacement parts. To order parts, contact Nicolet iS20 User Guide Thermo Scientific... - Page 27 2. Peel the backing off of the indicator holder, and then, as shown below, press the round, blue indicator onto the adhesive on the holder. Place the new indicator and holder over the indicator opening, and press down gently to make sure it is sealed. Thermo Scientific Nicolet iS20 User Guide...
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Page 28: Replacing The Desiccant
4-in1 tool (included with your instrument) Replacement (or regenerated) desiccant canisters (2) NOTICE • Use only Thermo Scientific certified replacement parts. To order parts, contact us. • Make sure nothing falls into the instrument while the desiccant cover is removed. Nicolet iS20 User Guide... - Page 29 1. Open the tool compartment, and use the 4-in-1 tool, with the large Phillips bit installed, to loosen the captive screw in the desiccant cover. Lift off the desiccant compartment cover and put it in a safe place. Thermo Scientific Nicolet iS20 User Guide...
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Page 30: Regenerating The Desiccant
• Vented oven • Insulated cloth or hot pad Note If you need to replace the humidity indicator, you must order new desiccant canisters. A new humidity indicator is included with the new desiccant canisters. Nicolet iS20 User Guide Thermo Scientific... -
Page 31: Checking And Changing The Purge Gas Filter
Check the purge filter occasionally to make sure it is clean and dry. (The drawing below shows where the purge filter is located.) If the filter is green, it does not need to be replaced. If it is yellow, or otherwise discolored, replace it according to the following procedure. Thermo Scientific Nicolet iS20 User Guide... - Page 32 Tools needed: Purge gas filter replacement kit NOTICE Use only Thermo Scientific certified replacement parts. To order parts, contact 1. Turn off the purge gas at the main valve. Do not turn down the flow meter or the pressure regulator.
- Page 33 Note You may notice increased levels of water and carbon dioxide in spectra collected immediately after you have had the purge gas turned off. If this interferes with your data, wait 15 to 60 minutes until purge is completely re-established. Thermo Scientific Nicolet iS20 User Guide...
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Page 34: Chapter 5 Troubleshooting
Additional troubleshooting steps: 1. If you are using performance verification (PV) tests, ValPro tests or spectral quality checks in OMNIC software, check whether one of these items has failed, or a scheduled maintenance procedure is overdue. Nicolet iS20 User Guide Thermo Scientific... - Page 35 3. Check the power cord descriptions and part numbers to make sure the power cord is appropriate for your local AC power source. Order a new power cord if necessary. Thermo Scientific Nicolet iS20 User Guide...
- Page 36 6. If the instrument has a cooled detector and the detector dewar was recently filled, allow the detector at least 15 minutes to cool. 7. If the problem persists, contact us for assistance. Nicolet iS20 User Guide Thermo Scientific...
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Page 37: Error Messages
3. Turn off the computer and then turn off the instrument power. Check the USB data cable. If the cable is damaged, replace it. If the cable is loose or disconnected, reconnect it. Thermo Scientific Nicolet iS20 User Guide... - Page 38 2. If the room temperature is within the recommended range, remove any accessories or samples from the sample compartment, and then align the instrument. 3. If the problem persists, contact us for assistance. Nicolet iS20 User Guide Thermo Scientific...
- Page 39 1. Check to see if the source is properly seated in its holder. 2. Replace the source. Contact us for assistance. The power supply voltages are out of tolerance 1. Replace the power supply. Contact us for assistance. Thermo Scientific Nicolet iS20 User Guide...
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