Sensor Alignment
RH Sensor Alignment
Sensor Alignment
For highly accurate measurement readings, you should align your QUESTempº 48N prior to data
logging or event logging/recording. For the RH sensor, it is recommended to align with a High
concentration level using the 75% sensor salt, NaCl (sodium chloride), or a Low concentration
level using the, the 33% sensor salt, MgCl (magnesium chloride). (To order sensor alignment
salts, refer to an online vendor such as, colepalmer.com.)
RH Sensor Alignment
1. To open, navigate to the main menu and select View by pressing I/O Enter key (see A).
A measurement screen will appear (see B).
A B
Figure 1-24: Main menu with view selected (A) & measurement screen (B)
2. Press and hold I/O Enter key and then press Down Arrow key from the View menu. The
Alignment screen will appear.
(RH Sensor) Alignment menu
“High” is selected when the arrow appears in
front of the text.
NOTE: WBGT is not used in sensor alignment
Figure 1-25: Alignment screen
3. Press Up/Down Arrow key to select either High or Low. Then press I/O Enter key.
4. Remove (or slide) the Sunshield (white globe) from the RH sensor and place it to the side.
(See Figure 1-26).
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