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Hanna Instruments HI 2209 - TAKING ORP MEASUREMENTS; AFTER MEASUREMENTS

Hanna Instruments HI 2209
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7
Release Temp key. The meter returns to pH range.
The display shows the pH value of the test solution
compensated for temperature.
If measurements are taken in different samples successively, it
is recommended that the electrode be rinsed thoroughly for
better conditioning and to eliminate cross-contamination of
the sample.
For the rinsing process, it is recommended to use a liberal
amount of the next solution to be measured.
TAKING ORP MEASUREMENTS
HI 2209 and HI 22091 have the capability to take ORP
measurements, using an ORP electrode. Hanna Instruments
offers a variety of ORP electrodes for this purpose (see
accessories). Contact your Dealer for more information.
Connect the ORP electrode to the meter and
submerge the tip (4 cm / 1½") into the
sample to be tested.
Note:ORP measurements are taken without temperature
compensation.
Press the mV key to enter the mV mode. Allow
a few minutes for the reading to stabilize.
The display will indicate the mV value (positive or negative).
AFTER MEASUREMENTS
Press the ON/OFF switch to switch the instrument off.
4 cm
(1½")

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