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6) If you also need to offset RH, do not press and hold the SET
button yet. Instead, press the SET button briefly. This will
change the display to 0.0%.
7) If your RH drift is negative, you want to add value to 0.0 to
compensate. If your RH drift is positive, you want to
subtract value. To add value to the 0.0 term, press the
HOLD button once for each 0.1% of compensation you
need. To subtract value, press the BKLT button once for
each 0.1% of compensation. The maximum amount of RH
drift you can compensate for is ±9.9%RH.
8) When you are satisfied with the temperature and/or RH
offset values you have entered, press and hold the SET
button to save the settings. After the bottom line of the LCD
shows SAVE for 2 seconds, the meter will automatically
power off with the offsets in place.
Abrupt temperature changes will cause condensation and
possible vapor penetration. Clean the LCD after the vapor
evaporates. Blow off loose particles with compressed air.
Gently brush remaining debris away with a lens hair brush.
Never use a solvent or an abrasive cleaner on the FD08. To
clean the housing, use a soft, damp cloth.
Do not drop or disassemble the meter or immerse it in water.
There are two error messages you may encounter when
using the HHAQ-108:
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