Hanna Instruments HI 9321 - Manual (Page 11)

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ORP MEASUREMENTS
Press RANGE.
Submerge the ORP or ISE electrode tip (4cm/
1½") into the sample.
Allow a few minutes for the reading to stabi-
lize.
If readings are out of range "---" will appear
on the LCD.
See also "Taking REDOX Measurements" on page 16.
TEMPERATURE MEASUREMENTS
Taking a temperature measurement is very
easy. Connect the HI 7669/2W temperature
probe and turn the instrument ON.
Dip the liquid/general purpose HI 7669/2W
probe into the sample and allow the reading
on the secondary display to stabilize.
HOLD FUNCTION
Press and hold MEM. The last reading will be frozen on the display
until MEM is released. During this operation, the MEM indicator is
also shown on the LCD.
Press MR and the previously memorized reading will be displayed
with the MEM indicator on the LCD.
4 cm (1½
")
mV
ºC
mV
°C
MEM pH
°C
MEM pH
°C