38
Temperature
This option permits the user to configure all parameters related to
ISE temperature measurements.
Temperature Source
The options are: Manual, Channel 1 or Channel 2. If no temperature
probe is detected, a manually set value will be displayed (and
logged) with the measurement. If a temperature probe is connected
to either channel, it may be selected. The temperature measurement
will be displayed and logged with the measurement and may be
used for temperature compensation calculation if Temperature
Compensation is enabled.
Temperature Unit
Select the desired temperature unit (Celsius, Fahrenheit or Kelvin degrees) and the meter will automatically
convert to the selected unit.
Manual Temperature
If no temperature probe is connected, the desired temperature can be set manually. The default setting is 25 °C.
If the measured temperature is different, the value can be manually adjusted to obtain an accurate Ion measurement.
Temperature Compensation
ISE measurements benefit from temperature compensated corrections if:
• standards and sample temperatures differ from each other
• the Isopotential Point of the ISE is known.
If sample and standards are made at the same temperature, leave this option disabled.
Isopotential Point
If the Temperature Compensation is enabled, the isopotential point
of the ISE must be added in this parameter. Verify the
Electrode Type
and
Concentration Unit
are configured for the desired application.
The Isopotential point will use the selected concentration unit. Use
and
to edit the isopotential point value and press
to save the value or press
to cancel operation.
Notes
:
• A warning message will appear on the LCD informing the user to
perform a new calibration.
• A minimum of two Ion standards is required for the ISE calibration.
43
ISE Significant Digits
Accessing this option, the number of ISE significant digits can be
set, with one (X), two (XX) or three (XXX) significant digits.
To set the ISE Significant Digits:
• Press
while in
ISE Measure
mode.
• Press
.
• Use
or
to select the ISE Significant Digits
option.
• Press
and use
or
to highlight the
desired option.
• Press
to confirm your selection or press
to
cancel operation.
