Working with custom buffers
• To select a custom buffer (see Note): press the
ARROW
keys while in pH calibration
mode until the
Custom
key will be displayed on the LCD.
• To change the custom buffer value in accordance with current temperature:
press
Custom
and then the
ARROW
keys. Press
Accept
to confirm the value.
Note:
The custom buffer is supposed to be set in SETUP mode.
Replacing an old calibration point
• To select the old calibration point to be replaced: press the
ARROW
keys.
• To confirm the old calibration point to be replaced: press
CFM
.
• To leave replace mode: press
CAL
.
pH Calibration messages:
•
Wrong buffer
- the pH reading is far from the selected buffer.
•
Electrode dirty/broken
alternatively with “
Buffer Contaminated
” the electrode
offset is out of acceptable range.
•
Wrong Buffer
Temperature
: buffer temperature out of defined range.
•
Wrong Old Slope
: inconsistency between current and old calibration parameter.
•
Clean Electrode
: an abnormal difference between new and previous calibration
detected.
•
Outside Cal Range
: out of calibration range.
RELATIVE mV CALIBRATION PROCEDURE
• To enter/exit relative mV calibration mode: press
CAL
while in relative mV
measurement mode; the relative mV value is displayed on the main LCD line and
the absolute mV value on the secondary line.
• To change the displayed relative mV value: press the
ARROW
keys.
• To confirm relative mV calibration: press
CFM
. The meter returns to relative mV
measurement mode.
ION CALIBRATION PROCEDURE
• Place the ISE probe in the less concentrated standard.
• Wait for “
CFM
” to blink. Press
CFM
to accept the calibration point (see Note).
• Follow the above procedure until the fifth calibration point is reached. The meter
returns to measurement mode.
Note:
For one, two, three or four-point calibration, press
CAL
after the appropriate
accepted solution. The meter returns to measurement mode.
SETUP MODE
• To enter/exit SETUP view mode: press
SETUP
while in measurement mode.
• To toggle between displayed parameters: press the
ARROW
keys.
• To enter/exit SETUP changing mode: press
Modify
or simply select option.
GLP MODE
• To enter/exit GLP mode: press
GLP
while in measurement mode.
LOG MODE
• To store the current reading in memory: press
LOG
while in measurement mode.
• To view logged data: press
RCL
while in measurement mode.
• To view more details: press
More
.
• To delete records: press
Delete
key.
• To delete all records: press
Delete All
.
AutoEnd MODE
• To freeze the first stable reading on the LCD: press
AutoEnd
while in measurement
mode; the “
WAIT
” tag will blink until the reading will stabilize, then “
Hold
”
will be displayed.
• To return to measurement mode: press
Continue
.
