• Products
  • Solutions
  • Support
  • About
Campbell Scientific logo Campbell Scientific logo Campbell Scientific logo
  • Home
  • Products
  • Solutions
  • Support
  • About
  • Quote List
  • Contact
  • Regional Websites
    • Regional Websites
    • Africa
    • Australia
    • Brasil
    • Canada
    • Centro Caribe
    • Deutschland
    • España
    • Europe
    • France
    • India
    • Japan
    • United States
    • ภาษาไทย
    • 中国
    • Country Directory
  • Log In

FAQs Frequently Asked Questions about Our Products and Solutions

Ask a Question Ask a Question


All FAQs (1992 total: showing 1681-1700)

  • What is a Bowen ratio, and can an AP200 measure it?
  • Can the AP200 be used with chambers?
  • Can the AP200 be used to measure horizontal advection?
  • Why does the AP200 require an ambient pressure measurement for the H2O span, but not for the zero or CO2 span?
  • Why would CAL_TIMEOFFSET ever be set to a non-zero value?
  • How long does it take for the reading to stabilize during an H2O span?
  • The IRGA operates at reduced pressure in the AP200. Is it OK to do a zero/span at ambient pressure?
  • If it is OK not to do an automated H2O span, is it OK not to do an automated CO2 span?
  • Why is the AP200 not able to do an automated H2O span?
  • Should the AP200 set the IRGA zero/span or just measure the zero/span?
  • Do both zero and CO2 span have to be done, or can just a zero be done?
  • How often should zero/span be performed on an AP200?
  • What is required for zero and span, and what does it cost?
  • How important is it to zero and span the IRGA?
  • If the IRGA needs recalibration, should it be sent to Campbell Scientific?
  • How often does the IRGA sample cell need to be cleaned?
  • What maintenance does the IRGA require?
  • If greater precision than what the LI-840A can provide is desired, can another analyzer, such as the LI-7000, be used instead?
  • If water vapor measurements are not needed, can the LI-820 be used instead of an LI-840A?
  • Can an LI-840 be used instead of an LI-840A?
Previous Next

CAMPBELL SCIENTIFIC, INC.

  • Home
  • Products
  • Solutions
  • Support
  • About
  • Newsroom
  • Partners
  • Blog Articles
  • User Forum
  • Videos and Tutorials
  • GSA Purchases
  • Contact Us
  • Careers
  • Your Account
  • Company Feedback
  • ISO Certifications
  • Site Map

country map

815 W 1800 N
Logan, UT 84321-1784
USA

Campbell Scientific Logo


Website Feedback Website Feedback © 2025 Campbell Scientific, Inc.