Battery replacement – Hanna Instruments HI 9064 User Manual
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HI 9064 and HI 9065 are provided with the advanced BEPS
(Battery Error Prevention System) technology that detects a low power
condition and automatically turns the instruments off to avoid
erroneous readings.
Battery replacement must only take place in a safe area and using
the battery type specified in this instruction manual.
To replace the batteries, simply remove the
two screws on the rear of the instrument
and replace all four 1.5V AA batteries with
new ones, while paying attention to the
correct polarity.
BATTERY REPLACEMENT
CALIBRATION KIT
Li Cl
11.1%
Na Cl
75.4%
12
3
6
9
4 h
H
H
• Remove the probe and tightly seal the chamber containing the
LiCl solution.
• Remove the cap from the "RH75.4%" cham-
ber containing the NaCl solution and insert
the probe.
• Wait for the measurement to stabilize (ap-
proximately 4 hours)
• Adjust the high humidity trimmer to read 64.3%.
• Wait for 1 hour and readjust if necessary.
• Leaving the probe in the "RH 75.4%" chamber, adjust the low
humidity trimmer until the display shows 75.4%.
• The relative humidity calibration is now complete.