YSI Professional Plus - Manual (Page 23)

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CALIBRAtIoN - CoNDUCtIVItY
The 6051030 ISE/conductivity cable has a specialized calibration
container that resembles a large test tube. This calibration chamber
can be used to calibrate the conductivity sensor with an ISE sensor
installed. A ring-stand should be used to support this chamber.
Press Cal . Highlight Probe ID or User ID
if you wish to add, select, edit, or delete an ID.
Probe ID must be enabled in the System GLP
menu to appear in the Calibrate menu. User
ID will appear automatically. Select ‘None’
if you do not want a User ID stored with the
calibration. When enabled, these IDs are stored
with each calibration record in the GLP file.
After selecting the User ID and/or Probe ID if
appropriate, highlight Conductivity and press
enter.
Highlight the desired calibration method; Sp.
Conductance, Conductivity, or Salinity and
press enter. YSI recommends calibrating in
specific conductance for greatest ease.
Calibrating in Specific (Sp.) Conductance or Conductivity
Place the sensor into a fresh, traceable conductivity calibration solution. the
solution must cover the holes of the conductivity sensor that are closest to the
cable. Ensure the entire conductivity sensor is submerged in the solution or the
instrument will read approximately of half the expected value!
Choose the units in either SPC-us/cm, C-us/cm
or SPC-ms/cm, C-ms/cm and press enter.
Highlight Calibration value and press enter
to input the value of the calibration standard.
then, once the temperature and conductivity
readings stabilize, highlight Accept Calibration
and press enter. or, press Esc to cancel the
calibration. If User Field 1 or 2 are enabled in
the GLP menu, you will be prompted to select
the fields and then press Cal
to complete the
calibration. After completing the calibration,
the message line at the bottom of the screen
will display “Calibrating Channel...” and then
“Saving Configuration...”.
Calibrating in Salinity
Place the sensor into a salinity calibration solution. the solution must cover the
holes of the conductivity sensor that are closest to the cable. Ensure the entire
conductivity sensor is submerged in the solution or the instrument will read
approximately of half the expected value!
Select SAL ppt or SAL PSU and press enter.
Highlight Calibration value and press enter
to input the value of the calibration standard.
then, once the temperature and conductivity
readings stabilize, highlight Accept Calibration
and press enter. or, press Esc to cancel the
calibration. If User Field 1 or 2 are enabled, you
will be prompted to select the fields and then
press Cal
to complete the calibration.
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