Hanna Instruments ph 301 사용자 설명서
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plied with the meters) that use the proper
polarity configuration.
polarity configuration.
The meters can also be used with other adapt-
ers. In this case, remember to check the
correct polarity of your adapter before con-
necting it to the meter.
ers. In this case, remember to check the
correct polarity of your adapter before con-
necting it to the meter.
Note: Make sure the main line is protected
by a fuse.
Press ON to turn the meter on. The power
LED will remain lit until OFF is pressed to
turn the meter off.
LED will remain lit until OFF is pressed to
turn the meter off.
When the meters are turned on, the micro-
processor checks if any calibration data is in
memory (i.e. if the offset is within ±60mV
and the slope between 70-108%).
processor checks if any calibration data is in
memory (i.e. if the offset is within ±60mV
and the slope between 70-108%).
If the calibration data is
valid, the meter will op-
erate in the normal mea-
surement mode and de-
fault to pH measurement
mode with the tempera-
ture on the secondary LCD.
valid, the meter will op-
erate in the normal mea-
surement mode and de-
fault to pH measurement
mode with the tempera-
ture on the secondary LCD.
If the calibration data is
not valid or the calibra-
tion data is lost, the
"CAL" indicator will be
displayed to prompt the
user to perform the pH
calibration. If the user chooses not to per-
form the calibration and presses CAL to quit
from the calibration mode, the offset and the
slope of the instrument would be set to 0 mV
and 100% respectively.
not valid or the calibra-
tion data is lost, the
"CAL" indicator will be
displayed to prompt the
user to perform the pH
calibration. If the user chooses not to per-
form the calibration and presses CAL to quit
from the calibration mode, the offset and the
slope of the instrument would be set to 0 mV
and 100% respectively.
ON
OFF
°C
pH
°C
pH
CAL
OPERATIONAL GUIDE
ELECTRODE AND PROBE CONNECTIONS
For combination pH or ISE or ORP elec-
trodes (with internal reference) plug the
electrode's BNC to the socket provided (see
page 11).
trodes (with internal reference) plug the
electrode's BNC to the socket provided (see
page 11).
For electrode with separate reference, con-
nect the measuring electrode's BNC to the
BNC socket and the reference electrode's
plug to the socket provided (see page 11).
nect the measuring electrode's BNC to the
BNC socket and the reference electrode's
plug to the socket provided (see page 11).
For temperature measurements and auto-
matic temperature compensation connect the
temperature probe to the °C socket (see
page 11).
matic temperature compensation connect the
temperature probe to the °C socket (see
page 11).
If the temperature probe
is not connected, when
turned on, the meter will
display a default tem-
perature of 25°C or the
last recorded tempera-
ture (if the temperature probe is disconnected
when the meter is on) on the secondary
LCD. The "°C" indicator will be flashing.
is not connected, when
turned on, the meter will
display a default tem-
perature of 25°C or the
last recorded tempera-
ture (if the temperature probe is disconnected
when the meter is on) on the secondary
LCD. The "°C" indicator will be flashing.
POWER CONNECTION
Plug the 12VDC adapter (HI710005 or
HI710006) into the DC socket (see page 11).
Plug the adapter to the mains.
HI710006) into the DC socket (see page 11).
Plug the adapter to the mains.
Note: The instrument uses the following con-
figuration.
It is recommendable to use the Hanna
HI710005 or HI710006 voltage adapters (sup-
HI710005 or HI710006 voltage adapters (sup-
°C
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