MEDENUS RSP 254, Operating And Maintenance Instructions Manual

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© 05.2022
1.2 Symbols, Notes
The instructions contain safety instructions marked with symbols to indicate possible consequences in case of non-
observance:
1.3 Terms, Abbreviations
Terms and abbreviations are explained below:
DANGER
Note
ATTENTION
This combination of symbol and signal word indicates a potentially hazardous
situation which, if not avoided, may result in minor or moderate injury, damage
to the device, the breakdown of the system, and material or environmental
damage.
This combination of symbol and signal word indicates an imminent hazardous
situation which, if not avoided, will result in death or serious injury.
This signal word highlights useful tips, recommendations, and information for
efficient and trouble-free operation.
AC Accuracy class
AG
o
Upper response pressure
group
AG
u
Lower response pressure
group
BV Breather valve
HDS High-pressure spindle
K
G
(Valve) flow coefficient
p
d
Outlet pressure
p
ds
Setpoint of the
outlet pressure
p
dso
Upper SSV response pressure
p
dsu
Lower SSV response pressure
PS Maximum allowable pressure
p
u
Inlet pressure
ρ
n
Standard gas density
P
dF
Pneumatic follow-up setpoint from
I/P converter
P
d100
Outlet pressure R70-100
P
d2 0
Outlet pressure R70-20
P
d20s
Outlet pressure R70-10 with
pressure converter 1:2 for
follow-up setpoint adjustment
P
d10s
Outlet pressure R70-10 with
1:1 follow-up setpoint adjustment
P
d10
Outlet pressure R70-10
Q
n
Standard volumetric flow rate
RSD Throttle valve
RSS Switching valve
SSV Safety shut-off valve
SD Setting device
SG Closing pressure group
At Actuator
t
uGas
Gas inlet temperature
VS Valve seat
w
u
Inlet gas velocity
w
d
Outlet gas velocity
W
dso
Upper adjustment range (SAV)
W
dsu
Lower adjustment range (SAV)
Δp
wo
Min. re-engagement difference
between upper
response pressure and
normal operating pressure
Δp
wu
Min. re-engagement difference
between lower
response pressure and
normal operating pressure
MOP Maximum operating pressure in
a system
MOP
d
Maximum operating pressure
upstream of
the system
FF Fine filter