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16
Connecting the Wrist Unit
1. Apply the Wrist Unit to the volunteer's wrist and fasten the strap
firmly so that it cannot twist. It is recommended to use the non-
dominant arm.
2. Guide the cable assembly along the arm and fasten the arm straps.
3. Ensure the cable is connected to the Human NIBP Nano Interface.
4. The Wrist Unit has attachment points for two finger cuff s, C1 and
C2. Each finger cuff attaches to the Wrist Unit by a cuff cable and an
air hose. If you choose to use a single finger cuff , its cuff cable and
an air hose should be connected to C1.
5. Do not attach finger cuff s to the Wrist Unit until you are ready to
start a measurement! This will avoid risk of accidental inflation and
damage to the finger cuff (s).
Note. It is generally easier to wrap the finger cuff s first, before attaching
them to the Wrist Unit.
The Height Correction Unit (HCU)
The Height Correction Unit consists of a liquid-filled tube connected
at one end to a pressure transducer, called the HCU transducer (Figure
2–5). The other end is closed with a very pliable plastic bag contained in
a small cylindrical housing, hereaft er called the Reference end. During a
measurement, the HCU transducer should be placed at the measured
finger and the Reference end at heart level. Thus, any height changes of
the measured finger are continuously sensed.
The Height Correction Unit should be connected to the rear of the Wrist
Unit (see Figure 2–5, inset).
To connect the HCU:
1. Fix the Reference end of the HCU to the subject at heart level, by
attachment to the clothing or to a Velcro strap (see Figure 2–5). This
point of attachment should allow for easy detachment for zeroing
to be performed (see Human NIBP Settings on page 25).
2. The HCU transducer should be fixed to a finger cuff .
3. Ensure the HCU is connected to the rear of the Wrist Unit.
4. The tubing for the HCU should be free of any bends and
unobstructed in any way.
Human NIBP Nano Owner's Guide
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