20
“Calibration mV” menu.
ORP calibration procedure involves probe’s selection with one point (P1) calibration. From “Menu Calibration” choose
“ORP probe”.
Note: This procedure assumes that instrument is correctly congured and a working ORP probe connected
and installed on system. Measurement must be performed using plant water. Otherwise unattended results
might occurr.
Calibration can be performed in two ways: the rst by alignment with a buffer solution, the second by reading the resi-
dual chlorine level of the pool with the DPD1, comparison with the attached graph followed by alignment of the pumps
group. The choice of method is exclusively at the user’s discretion. In both cases, to establish the set-point value, a
check using the DPD1 or other analysis system is necessary. The enclosed graphs provide a reference between the
mV value read by the pumps group and the quantity of residual chlorine expressed in mg/litre, and are linked to the pH
value.
To end procedure move cursor on “OK” and press wheel to proceed to “Save” request screen. Move wheel on “YES” to
save or “NO” to discard changes. If an error occurred during calibration procedure then the instrument will show an error
message and will ask to proceed to a new calibration, cancel current operation or restore default settings.
1) Measure buffer solution temperature and verify that it is
the same printed on solution’s label.
2) Remove protective cap from probe and wash probe’s tip
into water. Then dry it by shaking the probe in air.
3) On “MTOWER PLUS” set “Cal. at” value to match buffer
solution value then put probe’s tip into buffer solution and
wait until “MTOWER PLUS” shows a stable reading value
(mV eld).
4)Move cursor on “OK” and press wheel ton corm the new
calibration value. If calibration process fails the instrment
will show “CALIBRATION FAILED”. Repeat procedure
otherwise move on “ESC” and press wheel.
To Next Page
Loading...
Need help?
General
