16
TAKING TEMPERATURE MEASUREMENTS
Taking a temperature measurement is very easy.
Turn the instrument ON.
Make sure the temperature probe is connected and
allow the reading to stabilize (1 or 2 minutes).
The temperature value will be displayed on the left LCD.
TAKING ORP MEASUREMENTS
(FOR HI 9017 AND HI 9318 ONLY)
HI9017
and
HI9318
have the capability to take ORP measurements,
using an ORP electrode. Hanna Instruments offers a variety of ORP
electrodes for this purpose (see page 59). Contact your Dealer for more
information.
Just as pH measurements allow the acidity or the alkalinity of a
substance to be expressed in numbers, oxidation-
reduction potential (redox) measurements provide
the quantification of the oxidizing or reducing power
of any liquid.
Connect the ORP electrode to the meter and sub-
merge the tip (4 cm / 1½") into the sample to be tested.
Note:
ORP measurements are taken without temperature compensa-
tion.
Press the RANGE key once to enter the mV mode.
Allow a few minutes for the reading to stabilize.
The display will indicate the absolute mV value
(positive or negative).
When values are less than ±400 mV, tenths of
mV are displayed; for values greater than ±400
mV, the decimal digit disappears.
Note that the change in scale (from 0.1 mV to 1 mV as resolution) is
automatic.
"Err2" appears if the value exceeds ±1999 mV
(out of range).
pH
°C
4 cm
(1½
")
RANGE
mV
