User's Manual

36 - K4 b
2
User Manual
Connecting the K4 b
2
to the patient
K4 b
2
is a portable system with a total weight lower than 1 kg. Cosmed has developed a
special harness to fix the unit to any subject. The harness consists of a belt that can be
adjusted to fit different sizes and positions. I.e. if you need to test cyclist or rower
athletes we recommend to locate both units (K4 b
2
and battery) on the back of the
subject to increase comfort and to avoid any obstacles during movements. For this
reasons plates are provided with the harness and they can be easily removed and placed
in different positions.
Assemble the mask and the flowmeter
K4 b² is provided with a turbine flowmeter that can be easily disassembled for allowing
cleaning and disinfection.
1. Plug the turbine in the mask adapter by pushing and rotating it clock-wise till you
feel a stop.
2. Insert the optoelectronic reader over the turbine and press it till the mask.
3. Plug the wind cover as described in point 1.
4. Plug the sampling tube in the little hole located in the optoelectronic-electronic
reader.
5. Plug the turbine cable in the Turbine plug control panel of the K4 b
2
.
Using the "Ultimate Seal"
The "ultimate seal" is a moulded of Elasto-Gel, a glycerine based hydrogel. This
product is a unique polymer gel that forms an intimate seal between the face and the
mask. It has to be used for mask applications on hard to seal faces and where leaks are
not tolerated.
• Will not irritate the skin
• Contains no adhesives.
• Has no odour
• Will not dry out
• Single patient use
sss
Notice: In order to preserve
items composing the mask, it's
recommended to grease
periodically O-rings in the
optoelectronic reader with
Silicone compound grease.