OMC RE20 - Tight Shut Open (TSHUT OP)

47
Installation
,
O
p
eration and Maintenance Manual ManRE20en Rev.06/2022
OMC S.p.A: Via G. Galilei, 18 - 20060 - Cassina de Pecchi (MI) - ITALY - www.omcvalves.com - Tel.: (+39) 02.95.28.468
8.9.8 Tight Shut Open (TSHUT OP)
It is used to ensure that the valve is fully opened with a large force. When the input signal SP is
greater than the value set in the TSHUT OP, all available force is applied to OUT 1 port to tightly
open the valve. If the input current of 4 mA is 0% of valve position and 20 mA is 100% of valve
position, and the Tight Shut Open value is set to any position less than 100% (e.g. 95%), then the
valve stroke will be 100% immediately when the input signal is over the set value (e.g. 95%). A full
supply pressure applied to the actuator via the OUT1 port prevents leakage of the valve by shutting
the valve tightly. However, when the value is set to 100%, Tight Shut Open function doesn’t work.
3 seconds

 
Press <UP> or
<DOWN> button
if the above is not
displayed.
Press <UP> or
<DOWN> button
if the above is not
displayed.
<UP>/<DOWN>

<ESC>
3 times
