Hanna Instruments hi 3050n User Manual
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Table 4
Calibration:
Calibration:
Calibration:
Calibration:
Calibration:
1. Connect the HI 1217D electrode to the rear
input DIN socket of HI 3050N.
2. Connect power cable and switch on the
power supply. Then switch the stirrer "ON"
with the "ON/OFF" switch. (Fig. 1, L)
with the "ON/OFF" switch. (Fig. 1, L)
3. Immerse the electrode into pH 7.01 buffer
solution with an accurate thermometer,
measured the solution temperature. Wait
for one minute, select the "SET/MEA" switch
(Fig. 7, L) to "MEA" position.
measured the solution temperature. Wait
for one minute, select the "SET/MEA" switch
(Fig. 7, L) to "MEA" position.
4. Note down the temperature and pH value
shown on the LCD display (Fig. 7, N). Adjust
the "OFFSET" knobs (Fig. 7, J) until the
LCD shows the correct pH value in accor-
dance to Table 4. Eg. If temperature is
30ºC, adjust "OFFSET" knob for LCD read-
ing pH 7.00.
the "OFFSET" knobs (Fig. 7, J) until the
LCD shows the correct pH value in accor-
dance to Table 4. Eg. If temperature is
30ºC, adjust "OFFSET" knob for LCD read-
ing pH 7.00.
5. Rinse the electrode and immerse in pH
4.01 or 10.01 reference buffer.
6. Wait for one minute and adjust "SLOPE"
knob (Fig. 7, K) until the LCD showed value
in accordance to the noted temperature of
the buffer. (See Table 4)
in accordance to the noted temperature of
the buffer. (See Table 4)
istrstirR2.p65
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7. The calibration is now completed and the
stirrer is ready for use.
WARRANTY
WARRANTY
WARRANTY
WARRANTY
WARRANTY
Hanna Instruments reserves the right to
modify the design, construction and appear-
ance of its products without advance notice.
modify the design, construction and appear-
ance of its products without advance notice.
All Hanna Instruments meters are warranted
for two years against defects in workmanship
and materials when used for their intended
purpose and maintained according to instruc-
tions.
for two years against defects in workmanship
and materials when used for their intended
purpose and maintained according to instruc-
tions.
The Probes are warranted for a period of six
months.
months.
This warranty is limited to repair or replacement
free of charge. Damage due to accidents,
misuse, tampering or lack of prescribed main-
tenance is not covered.
free of charge. Damage due to accidents,
misuse, tampering or lack of prescribed main-
tenance is 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
failure. 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 Cus-
tomer Service department and then send it with
shipments costs prepaid. When shipping any
instrument, make sure it is properly packaged
for complete protection.
whom you purchased the instrument. If under
warranty, report the model number, date of
purchase, serial number and the nature of the
failure. 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 Cus-
tomer Service department and then send it with
shipments costs prepaid. When shipping any
instrument, make sure it is properly packaged
for complete protection.
To validate your warranty, fill out and return the
enclosed warranty card within 14 days from
purchase date.
enclosed warranty card within 14 days from
purchase date.