HACH LANGE Filtrax, User Manual

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Maintenance
49
6.1.6 Cleaning with cleaning set (option)
Action Menu/acknowledge
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 2 x with [ok].
REM.MOD.CARRIER
REMOVE MODUL
3. Carefully fill the cleaning bottle with 5% chlorine bleach (sodium hypochloride)!
CLEAN MODUL
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!
4. Pull off the sample tubes connected to the module carrier and acknowledge with
[ok]. Lay tubes as per diagram.
5. Activate the cleaning of the sample pipes using the [PREPUMP] function
(counter counts down from 600 s, the date for the operating time counter
[CLEANED] is now updated automatically).
PREPUMP 600 s (count down to 0)
6. Lay the tubes for the filter modules as before and immerse the module carrier
again at the location for the measurements.
7. Open the [+SERVICE] menu and then the [PREPUMP] function.
[+SERVICE]
PREPUMP 600 s (count down to 0)
8. 10-15 minutes later place all instruments back in operation.