Product Manual

13
Setting up the Relative Humidity Recalibration
Routine for Kestrel 4 Series units.
Example Recalibration Schedule
Day 1 Day 2 Day 3
8:30am 9:00am 9:00am 10:00am 10:00am 11:00am
Set up
calibration
jars-30min
Begin
equilibration
in 1st jar-24hr
Start 1st jar
calibration
timer - 1 hr
Begin
equilibration
in 2nd jar-24hr
Start 2nd jar
calibration
timer - 1 hr
Complete
1. If the battery indicator does not show near full battery life remaining, replace the batteries with
new Lithium AAA batteries.
2. In the main menu select System, then select Humidity Cal. In some older rmware versions,
Humidity Cal is found directly on the main menu.
Ensure the calibration settings are set to the values shown below. If needed, use the key pad to
highlight elds and scroll to the correct value. Set Period to at least 60 minutes. Adding additional
time, (up to 120 min) may improve calibration accuracy.
Period 60 min
RH Point 1 32.8%
RH point 2 74.0%