Hanna Instruments hi 7101 Manual Do Utilizador

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• 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).
ISTR7101R2  04/00
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  C
ALIBRATION
  P
ROCEDURE
 :
• 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%
Na Cl
75.4%
CALIBRATION
 KIT
H
2
O
N
a
 C
l
Li Cl
11.1%
Na Cl
75.4%
CALIBRATION
 KIT
12
3
6
9
4 h
CALIBRATION
 KIT
Li Cl
11.1%
Na Cl
75.4%
ON
OFF
12
3
6
9
4 h
H
CALIBRATION
 KIT
Li Cl
11.1%
Na Cl
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
HI7111/P
Spare saturation salts 6 x 15g bottles of LiCl
for low range humidity calibration
HI7121/P
Spare saturation salts 6 x 33g bottles of NaCl
for high range humidity calibration