Pro
30
Quick Start Guide
Item #606083
This pocket guide serves as a quick reference in calibrating and operating the Pro30
conductivity and temperature instrument. It is not intended to replace the information
found in the User Manual.
Calibration
The Pro30’s temperature sensor cannot be calibrated nor should calibration be
required. If the temperature sensor is not reading accurately, contact YSI or your local
representative
The Pro30’s conductivity sensor can be calibrated in conductivity, specific conductance
or salinity measurement mode. Calibrating any option will automatically calibrate the
others. YSI recommends calibrating in specific conductance for both ease and accuracy.
The following steps outline the specific conductance calibration.
1.
Fill a clean container (ie plastic cup or glass beaker) with fresh, traceable
conductivity calibration solution and place the sensor into the 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.
2.
Gently agitate the probe to remove any air bubbles from the conductivity
sensor.
3.
Press and hold the
Cal
key for a few seconds. Highlight
Sp. Conductance
and
press
Enter
.
4.
Highlight the units you wish to calibrate, either
uS/cm
or
mS/cm
, and press
Enter
. 1 mS = 1,000 uS.
5.
Next, use the up or down arrow key to enter the conductivity value of the
solution as it is labeled for 25°C. (Specific conductance is temperature
compensated conductivity and the instrument uses the default reference
temperature of 25° when calibrating specific conductance.) Depressing either
the up or down arrow key for 5 seconds will move the changing digit one place
to the left. The Pro30 will remember the calibration value and display it the next
time a calibration is performed.
6.
Press
Enter
to confirm the calibration value.
7.
Wait for the readings to stabilize and then press
Enter
to complete the
calibration. Or, press
Cal
to cancel the calibration and return to the Run screen.
