EXPO MiniPurge D770/ET, Руководство пользователя

Страница: 12 / 40

Page
8
ML564 | v3
Expo Technologies UK
T: +44 (0) 20 8398 8011
E: sales@expoworldwide.com
Expo Technologies US
T: +1 (440) 247 5314
E:sales.na@expoworldwide.com
Expo Technologies China
T: +86 532 8906 9858
E: qingdao@expoworldwide.com
Pressure characteristics during purge and pressurization of a pressurised enclosure using a
MiniPurge
®
system that incorporates a CLAPS system:
Intermediate Pressure
Sensor Pressure
Power Interlock switch
Alarm &Trip
Purge Time Machinery Start Normal Operation
CLAPS Regulator
Pressure
Intermediate switch contacts
open. Intermediate sensor
sends falling pressure signal
Fault Condition - loss of pressure
outside of CLAPS regulation
Minimum Pressure
Sensor Pressure
Purging Pressure
Minimum pressure switch contacts
open. Minimum pressure sensor sends
a low pressure signal.
Alarm indicator shows red (alarm only)
Alarm indicator shows red and power
is disconnected (Alarm and Trip)
Minimum
pressure switch
Intermediate
pressure switch
Power Interlock switch
Alarm Only
Contacts
Active
Inactive