Hach-Lange FILTRAX User Manual - Manual (Page 47)

Maintenance
45
6.1.4 Menu-based cleaning
Normal operation of this device may require the use of samples that are
biologically unsafe.
D A N G E R
Potential danger with contact with chemical/biological substances.
Working with chemical samples, standards and reagents can be dangerous.
Make yourself familiar with the necessary safety procedures and the correct handling of
the chemicals before use and read and follow all relevant safety data sheets.
WA R N I N G
Observe all cautionary information printed on the original solution containers and safety
data sheets prior to their use.
Dispose of all consumed solutions in accordance with the local and national regulations
and laws.
Select the type of protective equipment suitable to the concentration and quantity of the
dangerous material being used.
Observe instructions and safety information (information on risks and safety) on the
containers for the chemicals used.
Wear safety clothing: Lab coat, Safety glasses, Rubber gloves
Action FILTRAX display
1. On all process instruments connected and on the FILTRAX open the [+SERVICE]
menu, then the [+FILTERCLEANING] menu. +FILTERCLEANING
NO SAMPLE!
2. Lift the module carrier out of the tank or flume and acknowledge 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, if necessary store the filter modules in the plastic bags supplied!
4. Carefully clean the filter modules using 5% chlorine bleach (sodium hypochloride) or
5% hydrochloric acid (for high iron concentrations) and a soft sponge, during this
process do not soil the air and sample suction pipe!
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!
5. After leaving to soak for 10 minutes, slide the filter modules directly back into the
module carrier, without prior rinsing with water, so that the sample tubes are cleaned
with the solution left in the filter - acknowledge cleaning with [ok].
CLEAN MODUL
6. Immerse module carrier again and acknowledge with [ok]. REPLACE MODUL
7. Activate cleaning of the sample pipes with the [PREPUMP] function
(600 seconds - counter counts backwards, the date for the operating time counter
[CLEANED] is now updated automatically).
After completion of the prepumping program, place all instruments connected back in
operation.
PREPUMP 600 s