CB / CB-UL, CBF / CBF-UL (E7) 01/2022 Page 42/199
Water consumption at 37 °C / 98.6 °F and 93 % r.h.:
• Without opening the door: very low.
• When opening the door 10 times a day: approx. 70 ml per day.
4.5.1.2 Dehumidification
To reduce the humidity, ambient air is sucked in through a gas fine filter (sterile filter). As a result, the air in
the interior is diluted with the air from outside. The air tube for inlet of the ambient air is located in the upper
right corner in the recess for the freshwater bag. We recommend replacing the sterile filter on this tube
about once a month. To replace the sterile filter, see chap. 22.2.3.
4.5.1.3 Types of suitable water quality
• Deionized water from a water treatment installation already existing at the customer's site. Conductivity
from 1 µS /cm up to a maximum of 20 µS/cm. (Water, which is in equilibrium with the CO
2
in the air, and
has a conductivity below 1 µS/cm (ultrapure water), may cause acid corrosion due to its low pH).
• Tap water that has been treated by the optional water treatment system BINDER Pure Aqua Service
(disposable system). A reusable measuring equipment to assess the water quality is included (chap.
4.5.1.4).
BINDER GmbH is NOT responsible for the water quality at the user’s site.
Any problems and malfunctions that might arise following use of water of deviating quality is
excluded from liability by BINDER GmbH.
The warranty becomes void in the event of use of water of deviating quality.
Danger of calcification of the humidifying system.
Damage to the chamber.
Operate the chamber with deionized (demineralized) water only.
Water intake temperature NOT below +5 °C / 41 °F and not exceeding 40 °C / 104 °F.
4.5.1.4 BINDER Pure Aqua Service (option)
The optional BINDER water treatment system (disposable system) is available to treat tap water. The
lifetime depends on water quality and the amount of treated water used. The measuring equipment to
assess the water quality is reusable.
For detailed information on operating the water treatment system BINDER Pure Aqua
Service and its function, please refer to the operating manual supplied with BINDER Pure
Aqua Service.
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