Subassembly 01: Gas Supply - Xylem WEDECO SMOevo PLUS Series Original Manual

5.3.1 Subassembly 01: Gas Supply

01.1.30 Ball valve
01.1.35 Fine filter
01.1.40 Pressure
regulator
03.1.03 Ball valve
01.1.50 Safety
Pressure
Limiter
Combination
Pressure
Gas Inlet
≥3.0 bar (g)
2.7 bar (g)
Manual_SMOevoPLUS_eng_01.2019.doc
Manual Ozone Generating System SMOevo
Gas supply is carried out via a ball valve which must be
fully open during normal operation.
Prevents particles >0.1 µm from entering and damaging
the generator and the valves.
Keeps the operation pressure constant if feed gas
pressure varies within a certain range.
Can be used for the option Ozone Monitor (M1).
Two pressure limiters with integrated pressure transmitter.
Via the analog signal of the pressure transmitter, the PLC
receives the current pressure in the gas inlet. Warning and
switch-off points for exceeding or falling below certain
pressures are stored in the PLC. When the shutdown
points are reached, the system will be switched off via the
PLC.
A message is displayed when the warning points are
reached.
Description*
Max. switch-off point
warning message disappears
alarm message appears
→ after 1 sec: system shuts down
Max. warning value
≥ 2 .7 bar(g) and < 3 bar(g)
warning message appears after 5 sec
< 2.7 bar(g) warning message disappears
PLUS
System Description
Delay
Time
1 s
5 s
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