Hanna Instruments HI 98103, Руководство пользователя, Страница: 7 / 7

Meter Calibration
From measurement mode, press
and hold the ON/OFF button
until “CAL” is displayed. When “7.01” blinks on the display,
place the tip of the probe into a
pH 4.01, 7.01, or 10.01 buffer
solution.
For one-point calibration using pH 4.01 or pH 10.01
buffer go to procedure B
For one or two-point calibration using pH 7.01
buffer go to procedure A
A
B
When the reading is stable,
the stability indicator will
disappear.“Sto” will be displayed
when the calibration is saved.
If pH 4.01 or pH 10.01 buffer solution
is used as the first point
the value of
the buffer is recognized and displayed
with the blinking stability indicator.
Meter will exit to measurement
mode and the calibration tag will
be displayed.
One-Point Calibration with pH 4.01 or pH 10.01
B
On
e-
Po
in
t
Meter will exit to measurement
mode and the calibration
tag will be displayed.
pH 4.01 will then blink
on the display.
Tw
o-
Po
in
t
Use pH 4.01 or pH 10.01 to
perform a two-point calibration.
The value is automatically
recognized and displayed with
the blinking stability indicator.
When the reading is stable, the
stability indicator will disappear.
“Sto” will be displayed when
the calibration is saved.
Meter will exit to measurement
mode and the calibration
tags will be displayed.
A
One or Two-Point Calibration with pH 7.01
If pH 7.01 buffer solution is used as
the first point
the buffer is recognized
with the blinking stability indicator.
When the reading is stable, the
stability indicator will disappear
and pH 7.01 will be calibrated.
If pH 7.01 is the only calibration
point,
finish one-point
procedure at right.
If using pH 4.01 or pH 10.01
as a second point,
continue
two-point procedure at right.
Warranty
The meter is warranted for a period of one year against defects in
workmanship and materials when used for their intended purpose and
maintained according to instructions. The electrode is warranted for a
period of six months. This warranty is limited to repair or replacement free
of charge. Damage due to accidents, misuse, tampering or lack of prescribed
maintenance is not covered. If service is required, contact your local Hanna
Instruments Office. 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 (RGA) number from the Technical Service
department and then send it with shipping costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protection.
Before using Hanna Instruments products, make sure that they are entirely
suitable for your specific application and for the environment in which they
are used. Any variation introduced by the user to the supplied equipment
may degrade the meter's performance. Avoid touching the electrode area.
To avoid damages or burns, do not put the meter in microwave oven. For
yours and the meter's safety do not use or store the meter in hazardous
environments.
Recommendations for Users
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instruments
Inc., Woonsocket, Rhode Island, 02895, USA.
To obtain the highest accuracy for measurements it is important to follow
these tips:
• Calibration is only as good as the buffer being used. The pH buffer values
change over time once the sachets are opened. Fresh buffer should be
used for each calibration.
• The probe should be rinsed with purified water each time before placing in
buffer or sample to be tested.
• When the meter is not in use it is important to add several drops of storage
solution to the protective cap to keep the probe hydrated. If storage
solution is not available, pH 4.01 or pH 7.01 buffer can be used.
• For improved accuracy it is recommended to calibrate to a minimum of two
points. It is important to use buffers that bracket the expected value of the
sample to be tested. For example, if the expected value is pH 8, the meter
should be calibrated using pH 7.01 and pH 10.01 buffers.
• It is important to calibrate and measure samples at the same temperature.
A dramatic change in temperature between buffer solutions and samples
to be tested will give inaccurate readings
.
Care and Maintenance
IST98103N 06/18
To change the CR2032 Li-ion battery, turn the battery cover located on the
back of the meter counterclockwise to unlock. Remove cover and replace
with + side facing up.
Note: Batteries should only be replaced in a safe area using the battery
type specified in this instruction manual. Old batteries should be
disposed in accordance with local regulations.
Battery Replacement
Electrode Storage Solution
Code Description
HI70300L electrode storage solution, 500 mL bottle
HI70300M electrode storage solution, 230 mL bottle
Electrode Cleaning Solution
Code Description
HI700601P
general purpose cleaning solution,
20 mL sachets (25 pcs.)
Electrode
Code Description
HI1271 pH electrode for Checker
pH Buffer Solution
Code Description
HI70004P pH 4.01 buffer solution, 20 mL sachets (25 pcs.)
HI70007P pH 7.01 buffer solution, 20 mL sachets (25 pcs.)
HI70010P pH 10.01 buffer solution, 20 mL sachets (25 pcs.)
HI77400P
pH 4.01 & 7.01 buffer solution, 20 mL sachets
(10 pcs., 5 ea.)
HI770710P
pH 10.01 & 7.01 buffer solution, 20 mL sachets
(10 pcs., 5 ea.)
Accessories