Hanna Instruments HI 8564 User Manual

Page 7

BATTERY REPLACEMENT

Battery replacement must only take place in a
safe area and using the battery type specified in
this instruction manual.

FOR HI 8564

When the battery becomes
weak, the "V" symbol is dis-
played on the LCD to warn the
user.

In order to replace the bat-
tery, simply slide off the cover
and replace the 9V battery
with a new one.

FOR HI 93640

When the battery becomes weak, the "V" sym-
bol is displayed on the LCD to warn the user.

HI 93640 is provided with the advanced BEPS
(Battery Error Preventing System) technol-
ogy, that turns the meter off when a low
power condition is detected. It is recommended
to replace the 9V battery with a new one.

When the battery need to
be replaced, simply slide off
the battery cover and install
a new 9V battery.

BATTERY

VOLT BATTERY

• Remove the cap from the

"RH 75.4%" chamber con-
taining the NaCl solution and
insert the probe.

• Wait for the measurement to

stabilize (approximately
4 hours)

• Turn the high humidity trimmer until the

readout on the display is 64.3%.

• Wait for 1 hour and readjust if necessary.

• Leaving the probe in the "RH 75.4%" cham-

ber, adjust the low humidity trimmer until the
value of 75.4% is read.

• Now, the humidity calibration is complete.

Spare saturation salts are also available:
HI 7111/P (LiCl) for low range humidity, and
HI 7121/P (NaCl) for high range humidity.

CALIBRATION KIT

Li Cl

11.1%

Na Cl

75.4%

4 h

This manual is related to the following products:

HI 93640