ESD CONTROLS
Manual ESD Activation

System Control

Auto Triggers

Shore ESD Link
Hardwired Link
Fibre Optic Link
Battery Backup100%
ESD SYSTEM SCHEMATIC — CARGO AREA
GAS CARRIER — CARGO AREA ESD OVERVIEW SHORE ESD LINK: ACTIVE ESD STATUS NORMAL UPS 24VDC 100% OK PORT CARGO MANIFOLD CMOV-P01 OPEN CMOV-P02 OPEN CMOV-P03 OPEN CMOV-P04 OPEN STATUS: NORMAL STARBOARD CARGO MANIFOLD CMOV-S01 OPEN CMOV-S02 OPEN CMOV-S03 OPEN CMOV-S04 OPEN STATUS: NORMAL CARGO PUMPS / ESD VALVES CP-01 PUMP: RUN ESD-V: OPEN CP-02 PUMP: RUN ESD-V: OPEN CP-03 PUMP: STBY ESD-V: OPEN SP-01 PUMP: STOP ESD-V: OPEN ENGINE ROOM ESD Main Eng F.O. Shutoff NORMAL Gen F.O. Shutoff NORMAL HVAC / VENTILATION Accomm HVAC: RUNNING CCR HVAC: RUNNING ER Ventilation: RUNNING GAS DETECTION — CARGO AREA Manifold Area: 2.1% LEL Pump Room: 0.8% LEL Comp Room: 1.4% LEL HVAC Intake: 0.3% LEL ALL GAS DETECTORS: NORMAL — No auto ESD trigger LAST ESD EVENTS: No trips recorded INTLK: SIL-2 LOGIC SOLVER HEALTHY | WATCHDOG: OK | COMM: OK | VOTE: 1oo2
ZONE STATUS
Cargo Manifold NORMAL
Cargo Pumps RUNNING
Engine Room NORMAL
HVAC Systems RUNNING

Alarms
Awaiting scenario...
ESD TRIP LOG
-- ESD system initialised — SIL 2 --
MANIFOLD VALVE MATRIX
Port Side (P01-P04)
P01
OPEN
P02
OPEN
P03
OPEN
P04
OPEN
Starboard Side (S01-S04)
S01
OPEN
S02
OPEN
S03
OPEN
S04
OPEN
Pump ESD Valves
CP-01
OPEN
CP-02
OPEN
CP-03
OPEN
SP-01
OPEN
SYSTEM PARAMETERS
Cargo Tank Pressure0.18bar
Gas Level — Manifold2.1%LEL
Battery Backup100%
Valves Open8/ 8

ESD Level: NORMAL
Zones Tripped: 0 / 4
SIL Rating: SIL 2 (IEC 61508)
Last Reset: Never
Reset Status: READY

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