22
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 half the expected value!
Choose the units. If calibrating in specific conductance, choose either
SPC-us/cm
or
SPC-ms/cm
. If calibrating in conductivity, choose either
C-us/cm
or
C-ms/cm
.
Press enter after selecting the appropriate units.
Select
Calibration value
, then enter the calibration value of the standard used.
Note the measurement units the instrument is reporting and be sure to enter in
the correct calibration value for the units being used. For example, 10,000 μS =
10 mS. Make sure that the units are correct and match the units displayed on the
handheld.
Figure 35
Calibrate specific
conductance
Figure 36
Calibrate Salinity
03/03/20 10:34:42 AM
Calibrate Spc
100%
Calibration Value [ 1000]
Accept Calibration
1014 SPC-uS/cm
Post Cal Value
1000 SPC-uS/cm
Press ESC to Abort
Last Calibrated
03/02/20 07:23:20AM
Actual Readings
22.9 °C
03/03/20 10:34:42 AM
Calibrate Salinity
100%
Calibration Value [0.01]
Accept Calibration
0.00 SAL ppt
Post Cal Value
0.01 SAL ppt
Calibration successful!
Press ESC to Abort
Last Calibrated
03/02/20 07:23:20AM
Actual Readings
24.6 °C
Conductivity Calibration
A 16 oz nalgene bottle is included with all 6051030 ISE/conductivity cables. This bottle can be used to calibrate
the conductivity sensor with an ISE sensor installed. A ring-stand should be used to support this container during
calibration.
YSI recommends calibrating conductivity first, as the salinity reading from the conductivity sensor is a variable used to determine
the dissolved oxygen mg/L measurement. Also, conductivity calibration solutions can easily become contaminated from residual
solution from other calibration procedures (e.g. buffer from a pH calibration).
From the Calibrate Menu, 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.
It is only necessary to calibrate the conductivity with one method.
Figure 34
Calibration options for
Conductivity
03/03/20 10:34:42 AM
Calibrate Conductivity
100%
Sp. Conductance
Conductivity
Salinity
Observe the
Actual Readings
for stability (no significant change for 40 seconds), then select
Accept Calibration
. “Calibration
successful!” will be displayed in the message area at the bottom of the screen and the handheld will beep before you are returned
to the Calibrate Menu.
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 half the expected value!
Select
SAL ppt
or
SAL PSU
and press enter.
Select
Calibration value
, then enter the calibration value of the standard used.
Observe the
Actual Readings
for stability (no significant change for 40 seconds),
then select
Accept Calibration
. “Calibration successful!” will be displayed in
the message area at the bottom of the screen before you are returned to the
Calibrate Menu.
