User Manual
Table Of Contents
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5.2.2. Clean and activate ORP electrode: After the electrode has been used over a long
period of time, the platinum surface will get polluted which causes inaccurate measurement
and slow response. Please refer to the following methods to clean and activate ORP
electrode:
(a) For inorganic pollutant, submerge the electrode in 0.1mol/L dilute hydrochloric acid for
30 minutes, then wash it in pure water, then submerge it in the soaking solution for 6 hours.
(b) For organic or lipid pollutant, clean the platinum surface with detergent, then wash it in
pure water, then submerge it in the soaking solution for 6 hours.
(c) For heavily polluted platinum surface on which there is oxidation film, polish the platinum
surface with toothpaste, then wash it in pure water, then submerge it in the soaking solution
for 6 hours.
4.3 Parameter Setting
5.3.1. mV and ORP measurement parameter setting (chart (5-1))
Chart（5-1）
Mode Contents Code Parameters
P1
Time set for timing measuring
0 to 99min
P2
Restore to factory setting
OFF-On
5.3.2. Time set for timing measuring (P1):
Please refer to 4.4.3.
5.3.3. Restore to factory setting (P2):
Please refer to P15 items 4.4.7
5 RS232 Communication