Yokogawa RAKD User Manual
Page 14
<2. PRECAUTIONS>
2-2
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
All Rights Reserved. Copyright © 2003, Rota Yokogawa
Check movability of the float (5)* by watching the pointer. The pointer should follow the movement of the float.
If this is not the case, float and measuring tube (1;21) should be cleaned.
Check the movability of the pointer by careful moving it with your fingers and watching whether it responds to
the scale value. If it does not work properly, the mechanical display unit (14) must be changed.
To avoid damage of the float and of the stopper do not use magnetic valves. In the phase of start up increase
the flow slowly to the desired flow rate. If a sudden rise of the pressure can not be avoided (with use of
magnetic valves) the flow must be limited to the maximum used value (e.g. by valve).
*: Position numbers are illustrated in the explosion drawings in chapter 6.