YSI 5200A
79
YSI 5200A
78
Calibration Log
Calibration data is stored in the 5200A calibration log. A calibration data record
includes the type of sensor calibrated, the date and time of the calibration and the
calibration method. Press
at the Run Screen to view the calibration log.
Notes:
-
Use AquaManager to view and save calibration data on a PC. In addition
to the calibration log information listed above, AquaManager calibration
logs also include user inputs 1 and 2 and the pre and post calibration slopes/
offsets of the sensor(s) when applicable.
-
Information from cancelled calibrations is not stored.
Conductivity
Menus → Calibration→ Conductivity
See figure 4.5 to determine which sensor is the conductivity sensor. The conduc-
tivity sensor calibration is a one-point calibration. Calibrate using a traceable
conductivity solution that has a value close to the conductivity value of the water
system to be monitored.
Directions to Calibrate Conductivity Sensor
1. Connect probe/cable assembly - page 60.
2. Read Getting Ready to Calibrate - page 76.
3. Fill calibration/storage cup with
55 ml
of traceable conductivity calibration
solution that has a known value.
4. Carefully immerse the sensors into solution. Ensure that the top vent
hole of the conductivity sensor is fully immersed in the solution - figure
4.5, page 77.
5. Gently move the probe module up and down to remove any air bubbles
trapped in the conductivity sensor vent hole.
6. Screw the calibration/storage cup onto the threads of the probe module.
7. Enter conductivity calibration menu:
Menus → Calibration→ Conductivity
8. Allow at least one minute for the temperature to equilibrate.
Configuring the 5200A
9. When the conductivity and temperature values show no significant change
for approximately 30 seconds, press
to continue calibrating OR
press
to abort the calibration and return to the calibration menu
without saving any changes.
10.
Use the arrow keys to select numbers on the numeric keypad, enter
the value of the calibration solution. Press
to confirm each number
selection.
Note:
-
The conductivity value of the calibration solution varies with temperature.
For proper calibration, enter the value of the calibration solution as it is
listed for 25°C. The 5200A is programmed to calibrate to this temperature
compensated conductivity value which is commonly referred to as Specific
Conductance.
-
The calibration value range is automatically determined when the sensor
is placed in calibration solution. The four ranges are: 0-200µS, 0-2000 µS,
0-20mS, and 0-200mS.
-
Take note of the calibration solution’s unit of measure and compare it to the
unit of measure selected by the 5200A’s auto range function. If the instru-
Configuring the 5200A
