Deckma Hamburg OMD-2008 Instruction Manual page 23

12.1 Manual Cell Clean Unit (MCU) DH 77780
Optional item if fitted
This unit facilitates cleaning of the cell without the need of removing the cell cap.
Regular use of this device should prevent malfunction of the monitor due simply
to fouling of the sample tube and all the inconvenience which this can cause.
Operating Instructions
a) Ensure that there is a clean water supply through the cell.
b) Activate the manual cell clean unit by pressing the handle several times.
c) Check the reading is between 0 to 2 ppm.
d) Repeat a) to c) at least once a week or as necessary.
e) Additional conventional cleaning with the cleaning brush may be necessary.
NB: The Manual Cell Clean Unit may also be used during normal operation with
sample water, but in this case an alarm occurs because the wiper is passing the
light source.
Spares: Wiper Seal DH 77606
Issue: 08.07.2015
DECKMA HAMBURG GmbH
Instruction Manual OMD-2008 (EV, FC, MCU Versions) Page 22 of 28