HACH LANGE Filtrax, User Manual

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Maintenance
47
6.1.5 Cleaning with cleaning container (option)
Action FILTRAX display
1. On all process instruments connected and on the FILTRAX open the [+SERVICE]
menu to prevent the process instruments drawing in cleaning solution. Choose the
[+FILTERCLEANING] menu.
[+FILTERCLEANING], NO SAMPLE
2. Lift the module carrier out of the tank or flume and accept with [ok].
REM.MOD.CARRIER
3. Pull off the air and sample tubes connected to the module carrier, carefully pull out
the filter modules and acknowledge with [ok].
REMOVE MODUL
N O T I C E
As far as possible do not touch the delicate membranes and never allow the membranes
to dry out.
4. Slide the filter modules into the cleaning container. Lay tubes as per diagram.
CLEAN MODUL
5. Carefully fill the cleaning container with 5% chlorine bleach (sodium hypochloride)!
WA R N I N G
Observe the safety precautions when handling the cleaning solution and wear
appropriate safety clothing!
The chlorine bleach must not come into contact with reagents containing acids, chlorine
gas will be formed!
6. Soaking time: 10 minutes, then acknowledge with [ok]. Further clean or clean
mechanically in case of heavy soiling.
REPLACE MODUL
7. Activate the cleaning of the sample pipes using the [PREPUMP] function (counter
counts backwards from 600 s, the date for the operating time counter [CLEANED] is
now updated automatically).
PREPUMP 600 s (count down to 0)
8. Slide the filter modules back into the module carrier and immerse the module carrier
again at the location for the measurements.