Amprobe WT-30 Manual do utilizador - Página 11

Procurar online ou descarregar pdf Manual do utilizador para Instrumentos de medição Amprobe WT-30. Amprobe WT-30 17 páginas. Salinity meter

Salinity calibration

1. Dip the probe into demineralized or distilled

water for about 30 minutes to rinse the probe.

2. Select the NaCL standard for calibration.

3. Pour enough solution into two separate clean

containers.

4. Power on the meter.

5. Rinse the probe into one of above containers.

Gently stir the probe.

6. Dip the rinsed probe into the second container.

Tap probe on the bottom of container to remove

air bubbles. Wait about 15 mins to make the probe

stabilize to the solution temperature.

7. Press "CAL" more than 2 seconds to begin

calibration. The salinity value of solution will blink

on LCD.

8. Press "p" and "q" to change the value in order

to match the value to the standard solution. You

can adjust the salinity reading for +30%. However,

if the measured value and standard value differs

by more than 30%, it is suggested to clean probe

or replace meter.

9. When the "CAL" stop flashing, you can

press"SET" less than 1 second to confirm and

return to salinity measurement mode. If "CAL"

always blinks, check if the calibration solution is

stable enough and whether the step 8 input value

is correct or not.

10. Repeat 1~9 for other ranges if needed.

11. To exit salinity calibration mode without

confirming, press "SET" in step 9 for more than 2

seconds.