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Chapter 5 — Maintenance and Troubleshooting
If that is possible, run it again with a stable water supply.
• Relative humidity is a function of temperature. Are you cali-
brating devices in the chamber that generate heat?
If you are, try to locate the heat producer adjacent to the temper-
ature sensor in the center of the chamber. This way, the system
will correct for it automatically.
• Is the green Control Status indicator off?
If so, the chilled mirror is not tracking the chamber. See the sec-
tion on page 59 in Appendix B on chilled mirror hygrometer
system troubleshooting.