10 11
C
A
L
IB
R
A
T
IO
N
K
IT
Li Cl
11. 1%
Na Cl
75.4%
12
3
6
9
4 h
H
H
Note: the central trimmer is related to the temperature calibration
and you will find it on HI 9065 probe only.
• Remove the probe and tightly seal the chamber containing the LiCl
solution.
• Remove the cap from the "RH75.4%" chamber
containing the NaCl solution and insert the
probe.
• Wait for the measurement to stabilize (approxi-
mately 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%" chamber, adjust the low
humidity trimmer until the display shows 75.4%.
• Now, the humidity calibration is complete.
Spare saturation salts are also available:
HI7111/P (LiCl) for low range humidity, and HI7121/P (NaCl) for
high range humidity.
12 cc
Li Cl
11. 1%
Na Cl
75.4%
C
A
L
IB
R
A
T
IO
N
K
IT
H
2
O
Na Cl
Li Cl
11. 1%
Na Cl
75.4%
C
A
L
IB
R
A
T
IO
N
K
IT
12
3
6
9
4 h
• Seal the chamber well when not in use, as the LiCl solution is
extremely hygroscopic and tends to capture the humidity present
in the air causing the solution to expand in volume and overflow
from the container.
• Pour approximately 12 cc of distilled water into
the other chamber marked "RH 75.4%".
• Add all the content of the HI7121 bottle con-
taining NaCl while continuously shaking the
container to avoid the formation of lumps. Seal
this container well when not in use.
The calibration kit needs 4 hours for stabilization.
CALIBRATION PROCEDURE:
• Bring the calibration kit to a temperature of approximately 20°C.
• Remove the cap from the "RH 11.1%" chamber
containing the LiCl solution and insert the probe
paying attention not to tip it into the liquid.
• Remove the adhesive sticker which covers the calibration trimmer
access holes.
• Press the ON/OFF key to switch the instrument
on.
• Wait for the measurement to stabilize (this takes
about 4 hours).
• Turn the low humidity trimmer (see Functional Description) until a
value of 0.0% is seen on the readout (reading between 0.0% and
1.0% RH is also acceptable).
C
A
L
IB
R
A
T
IO
N
K
IT
Li Cl
11. 1%
Na Cl
75.4%
ON/OFF
12
3
6
9
4 h
H
To Next Page
Loading...
Need help?
General
