EXPO MiniPurge Type X User manual

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RU С-GB.АЖ58.В.00906/20
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D.P. HI /
"OR"
GATE
'PURGE
COMPLETE'
VALVE
B
A
PURGE OUTLET TO
ENCLOSURE PRESSURE
TEST POINT (PLUGGED)
IN-LINE RESTRICTOR
LOGIC
GAUGE
PRESSURE
REGULATOR
2 barg
30 psi
D.P. LO /
MINIMUM PRESSURE /
FLOW SENSOR
ALARM INDICATOR 1
RED = ALARM
GREEN = PRESSURIZED
FILTER
t
PURGE FLOW
SENSOR
TIMER
VALVE
PURGE SUPPLY
AIR OR INERT
GAS
PURGE
INDICATOR 2
YELLOW =
PURGING
'PURGE
COMPLETE'
VALVE
ENCLOSURE
PRESSURE
TEST POINT
(PLUGGED)
D.P. HI / ENCLOSURE PRESSURE
PURGE OUTLET TO PRESSURIZED ENCLOSURE
PURGE VALVE
PILOT RESTRICTOR
LOGIC GAUGE
PRESSURE
REGULATOR
2 barg
30 psi
"OR"
IN-LINE RESTRICTOR
GATE
PURGE
VALVE
LEAKAGE
COMPENSATION
VALVE
TIMER
VALVE
D.P. LO / RLV CONNECTION
ALARM
INDICATOR 1
RED = ALARM
GREEN =
PRESSURIZED
PURGE
INDICATOR 2
YELLOW =
PURGING
ALARM
& TRIP
SENSOR
MINIMUM
PRESSURE
ALARM ONLY (OPTION)
AIR OR INERT
GAS
FILTER
t
PURGE FLOW
SENSOR
ELECTRONIC
TIMER
B
A

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A
"PURGE COMPLETED"
2 bar
30 psi
200 kPa
POWER SUPPLY
B
"Ex" ENCLOSURES POWER TO
PRESSURIZED ENCLOSURE
COMMON
PRESSURIZED
"PRESSURIZED"
2 bar
30 psi
200 kPa
POWER SWITCH
PASSIVE
ALARM / PRESSURIZED
SWITCH
B
M/O
2
+
PRESSURIZED
LOW PRESSURE ALARM
PASSIVE
ALARM / PRESSURIZED
SWITCH COMMON
POWER TO
POWER
SWITCH POWER SUPPLY
A
+
1
I.S. SWITCH PCB
I.S. INTERFACE UNITS
INTRINSICALLY SAFE CIRUITS

POWER TO
PRESSURIZED
ENCLOSURE
A
"PURGE COMPLETED"
2 bar
30 psi
200 kPa
B
PRESSURE
ALARM
CONTACTS
ALARM / PRESSURIZED
ACTUATOR AND SWITCH
POWER SUPPLYLIVE
1
2
3
4
5
6
7
EEx e II JUNCTION BOX
MINIPURGE
"PRESSURIZED"
2 bar
30 psi
200 kPa
BOTH SWITCHES:
CONTACTS 250Vac 4A AC14
NEUTRAL
LIVE
NEUTRAL
POWER ACTUATOR
AND SWITCH

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