47
UPS (Uninterrutible power
supply unit)
(machines equipped with
this device)
• Simulate a blackout with the load connected,
until the battery low warning light switches on
(see included handbook).
• Check that the support time for the UPS group
is at least 10 minutes.
• Keep the unit connected to the mains supply
(main switch pointing to on) for at least 6 hours
to recharge the batteries completely.
This operation gives the batteries greater capac-
ity and enables their condition to be checked at
the same time.
• Once every 6 months.
MACHINE PART
HOW TO OPERATE
HOW OFTEN
Cleaning of recirculation
system for demineralized
water
• If the objects to be tested are dusty and/or oily, the
impurities could be transferred to the water and
prevent the system from operating correctly. If the
objects to be tested cannot be cleaned, we advise
you not to allow the condensate water to flow into the
storage tank, but to send it directly to the drain (fig.
6.2). Either the OP7 programme or WINKRATOS
®
will switch on this option. If this is not possible either,
then the inside of the tank must be cleaned after
each test and the water in the storage tank must be
replaced.
• Once a month.
CH0305-172
- Open the machine hatch
panel below the door.
- Unscrew the opening
limit of the machine hatch
panel belon the door.
- Loosen the special clamp
and disconnect the pipe
connected to the pipe
holder 4 of the psicomet-
ric system drain.
- Loosen the special clamp
and disconnect the pipe
connected to the pipe-
holder 6 (overflow).
- Loosen the special clamp
and disconnect the pipe
connected to the pipe-
holder 7 (humidification
pump intake).
- Loosen the special seal-
ing nut and disconnect
the pipe connected to
nipple 9 (replenishment
demineralized water)
- Unmount the lower right
panel.
- Loosen the special clamp
and disconnect the pipe
holder 11 (drain).
- Unscrew the screen 10
and disconnect the con-
nector of the solenoid
valve 12 .
- Separate the connector and disconnect the electric cables connected to the water level sensor
8.
- Remove the screws which hold the structure to bracket 1 and take out the storage tank.
- Use special products to remove the scale and rinse in clean water.
- Replace the tank and reconnect the various parts.
- Switch on the chamber and start a climatic test in order to fill both the psychometric tank as well
as the rest of the system.
NB: for maintenance to the mechanical filter 7, please refer to the relevant paragraph.
CH0305-F35
7
6
5
4
1
2
8
9
10
11
12
