Hanna Instruments pH 300, Instruction Manual, Page: 15 / 57

29 28
PRINTING FUNCTION (for pH 302 only)
Press PRINT to get a printout at
any time.
All the printouts will be complete
with date, time, sample No., tem-
perature and measurement value
(pH or mV depending on the se-
lected measurement range).
HOLD FUNCTION (for pH 300 only)
To hold and memorize the measured value,
press MS. The last reading will be frozen on
the display until the key is released. At the
same time, this reading is stored in the
memory. During this operation, the "MEM"
indicator is lit.
PRINT
DATE 1/02
TIME 12:40
SAMPLE 5
°C 20.5
mV -350.0
DATE 1/02
TIME 12:21
SAMPLE 1
°C 17.9
pH 7.18
MS
°C
pH
MEM
a. Date of the last ION
calibration (month,
day and year)
b. Time when the last
ION calibration was
completed (hour and
minutes)
c. Offset calibration
value expressed in
mV and displayed on
the primary LCD
with the value used
to calibrate the off-
set on the second-
ary LCD.
d. Slope calibration
value expressed in
mV/[log (0.0001xppm)]
and displayed on the
primary LCD with
the 2
nd
value used to
calibrate the slope on the secondary LCD.
TAKING TEMPERATURE MEASURE-
MENTS
Taking a temperature measurement is very
easy.
Connect the temperature probe
to the instrument and turn the
instrument ON.
Dip the liquid/general purpose
temperature probe HI7669/2W
into the sample
Allow the reading on the sec-
ondary display to stabilize (1
or 2 minutes).
DATE
CAL
TIME
INTV
CAL
2
mV
ppm
CAL
1
mV
ppm
CAL
ON
°C
pH