DEPOLOX® 400 M
7. Maintenance
79
EN
7.8 Cleaning or replacing the optio-
nal strainer
The optional strainer must be cleaned or
replaced regularly to avoid contamination or
blockages. The frequency of cleaning or repla-
cement depends on the degree of contamina-
tion caused by the sample water.
1 Close the ball valve on the sample water
supply line in front of the strainer.
2 Unscrew the strainer and rinse it with
water. Catch escaping water in a contai-
ner.
3 Remove the strainer screen and rinse it
under running water or replace it.
4 Fit the strainer screen again and reinstall
the strainer.
5 Open the ball valve on the sample water
supply and drainage line again.
7.9 Replacing the fuses on the CPU
board
The mains input and all relays are protected by
fuses of type TR5. 3.15 A (slow-blow) fuses are
used for the relays and 1.6 A (slow-blow) fuses
for the mains input. Spare fuses are included
with the accessories.
1 Disconnect the electronics module from
the power supply and check that it is de-
energized.
2 Remove the housing cover of the electro-
nics module.
3 Pull the defective fuse (A) out of the fuse
holder and insert new fuse, making sure
that the rated data match!
4 Fit the housing cover.
5 Switch on mains voltage.
Fig. 5
Section, electronics module - fuses
A Fuses
7.10 Replacing the battery
The battery is required for the real time clock
in case of a power failure. If the time is not cor-
rect or if time-controlled functions show faulty
behavior, the battery must be changed. After
five years at the latest.
1 Disconnect the electronics module from
the power supply.
2 Remove the housing cover of the electro-
nics module.
3 Remove the battery from the holder.
4 Insert the new battery, type CR2032.
5 Fit the housing cover.
6 Switch on mains voltage.
7 Set date and time.
7.11 Cleaning
Never use corrosive cleaning agents (e.g. spi-
rit, scouring agents)! We recommend that you
use a moist cloth with a neutral household
cleaning agent.
WARNING
Risk of injury or damage to the device!
Only authorized and qualified electricians
are permitted to install the DEPOLOX®
400 M and open the housing.
A
WARNING
Risk of injury or damage to the device!
Only authorized and qualified electricians
are permitted to install the DEPOLOX®
400 M and open the housing.
ATTENTION
Environmental hazard!
Do not throw away or burn batteries. The
batteries must be disposed of in accordance
with environmental protection regulations.
NOTICE
No further adjustments need to be made.
