YSI Professional Plus User Manual

Page 23

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.