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Hanna Instruments HI 7101 User manual

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Instruction Manual
HI 7101 • HI 7102
RH Calibration Kits
Dear Customer,
Remove the calibration kit from the packing material and
examine it carefully. If any damage has occurred during
shipment, immediately notify your Dealer or the nearest
Hanna Customer Service Center.
Note: Conserve all packing material until the kit has been
observed to function correctly. Any defective item must
be returned in its original packing.
PRELIMINARY EXAMINATION
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using
the instrument. This manual will provide you with the
necessary information for correct operation.
If you need additional technical information, do not hesitate
to e-mail us at [email protected].
HI 7101 and HI 7102 portable
chambers allows you to calibrate
your hygrometers. These kits include
two thermally isolated chambers,
each one equipped with a cap and
three bottles containing the appro-
priate precalibrated saturated salts to produce a known RH
value: two 15-gram bottles of Lithium Chloride (LiCl) and
one 33-gram bottle of Sodium Chloride (NaCl).
HI 7101 is used with HI 8564, HI 9064, HI 9065,
HI 9161 and HI 91610.
HI 7102 is used with HI 93640 and HI 8666.
They measure only 190 x 115 x 110 mm.
You can check the status of your probe and perform a quick
recalibration (with an accuracy of ±5%) by using the
Hanna mini-calibration chambers HI 7101 and HI 7102.
GENERAL DESCRIPTION
PREPARING THE CALIBRATION SOLUTIONS:
• Pour approximately 26 cc of distilled
water into a glass container.
• Immerse this container into a bath of ice
and water and shake briefly.
• Slowly add the contents of a HI 7111
bottle containing LiCl into the glass con-
tainer while continuing to shake.
• When the salt has dissolved completely, add all the
content of the second bottle of HI 7111.
• Allow the solution obtained to cool, and
then pour it into the chamber marked
"RH11.1%", making sure that no resi-
due remains on the walls of the glass
container.
• 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 to overflow from the container.
CALIBRATION
Li Cl
11.1% Na Cl
75.4%
CALIBRATION KIT
Li Cl
11.1% Na Cl
75.4%
CALIBRATION KIT
H2O
26 cc
Li Cl
Li Cl
11.1% NaCl
75.4%
CALIBRATION KIT
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner.
• Pour approximately 12 cc of distilled
water into the other chamber marked
"RH 75.4%".
• Add all the content of the HI 7121
bottle containing NaCl while continuously
shaking the container to avoid the for-
mation of lumps. Seal this container well
when not in use.
The calibration kit needs 4 hours for
stabilization.
• Switch the RH meter on.
• Wait for the measurement to stabilize
(this takes about 4 hours).
• Turn the low humidity trimmer (see Hygrometer Instruc-
tion Manual) until a value of 0.0% is seen on the
readout (reading between 0.0% and 1.0% RH is also
acceptable).
• Remove the probe and tightly seal the chamber con-
taining 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
(approximately 4 hours).
IST7101R2 06/05
WARRANTY
HI 7101 and HI 7102 are warranted for two years against defects
in workmanship and materials when used for their intended purpose and
maintained according to instructions. This warranty is limited to repair or
replacement free of charge.
Damages due to accidents, misuse, tampering or lack of prescribed main-
tenance are not covered.
If service is required, contact the dealer from whom you purchased the
instrument. If under warranty, report the model number, date of purchase,
serial number and the nature of the problem. If the repair is not covered by
the warranty, you will be notified of the charges incurred. If the instrument
is to be returned to Hanna Instruments, first obtain a Returned Goods
Authorization Number from the Customer Service department and then
send it with shipment costs prepaid. When shipping any instrument, make
sure it is properly packaged for complete protection.
RH CALIBRATION PROCEDURE :
• Bring the calibration kit to a temperature of approxi-
mately 20°C.
• Remove the cap from the "RH 11.1%"
chamber containing the LiCl solution and
insert the probe paying attention not to
dip it into the liquid.
• Remove the adhesive sticker which covers the calibration
trimmer access holes.
Li Cl
11.1% NaCl
75.4%
CALIBRATION KIT
H
2
O
Na Cl
Li Cl
11.1% NaCl
75.4%
CALIBRATION KIT
12
3
6
9
4 h
CALIBRATION KIT
Li Cl
11.1% NaCl
75.4%
ON
OFF
12
3
6
9
4 h
H
CALIBRATION KIT
Li Cl
11.1% NaCl
75.4%
12
3
6
9
4 h
• 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 value of 75.4% is
read.
• Now, the humidity calibration is complete.
H
H
ACCESSORIES
HI 7111/P Spare saturation salts (6 x 15 g bottles of
LiCl) for low range humidity calibration
HI 7121/P Spare saturation salts (6 x 33 g bottles of
NaCl) for high range humidity calibration