Aquameter
™
Series Instruction Manual
10401-00188 Rev M
1.
Remove the probe from the calibration bottle, shake it off, then reinsert.
2.
Press the
ESC
key repeatedly to get back to the Main Menu.
3.
Go into settings and make sure EC is set to read with reference to 25ºC. If it’s
not, set it that way. See section 9:
4.
Go back to the main screen, wait until the temperature and EC readings are
stable, then check that the EC is r/- 1% of the Calibration Standard
value.
5.
If the EC reading is outside the 1% limit, recalibrate, this time leaving more
time for stabilisation.
If you can not successfully verify the EC calibration after several attempts, replace the
Calibration Standard. If the problem persists, strip the probe down as described below and
thoroughly clean the EC contacts.
14.11. Errors During Calibration
At the beginning of the calibration routine, a sanity check is done. If the probe detects that
the Calibration Standard value set and the Calibration Standard being used differ, Error 09
will be reported. If any other problems occur during calibration, an error message will be
displayed. Refer to
in section 10 for error message handling.
14.12. Cleaning the EC Contacts
On a regular basis, remove the lower Probe sleeve and thoroughly clean the four stainless
steel EC contacts situated on the side of the DO/EC electrode with a soft cloth or
toothbrush and non-abrasive detergent.
Never use solvent or alcohol based products to
clean the DO/EC electrode
. After cleaning, replace the lower Probe sleeve and re-
calibrate.
© 2011 Aquaread Ltd.
www.aquaread.co.uk
Page 38 of 64
