Lincoln Electric IM10109 CIRCULATOR - Manual (Page 30)

GENERAL DESCRIPTION
The Circulator system is self contained and is specifi-
cally designed for the filtration and general removal of
welding fume. It is suitable for continuous use in
welding applications. The system features a control
panel, a filter, a fan powered by a three phase motor
and duct work.
Ambient re-circulated air enters the system through an
air inlet module located on the top of the filter unit.
The air is cleaned by the main filter cartridges and is
blown back into the workshop environment through
adjustable nozzles on the outlet unit.
NOTE: Unshaded areas of Block Logic
Diagram are the subject of discussion
F-1 THEORY OF OPERATION F-1
CIRCULATOR
FIGURE E.1 BLOCK LOGIC DIAGRAM
PRESSURE
TRANSMITTER
CONTROL
PANEL
3 PHASE
MOTOR/
FAN
20-50 HZ
480
VA
C 3 PHASE
24 V
AC
SIGNAL
AIR FILTER
FIL
TERED AIR
EXTERNAL
COMPRESSED
AIR SUPPLY
24VDC
FILTER
CONTROL
BOX
MONITOR
AIR
FIL
TER AIR PRESSURE
DIFFERENTIAL SIGNAL 0-10
VDC (4-20ma)
C
OMPRESSED AIR
MONIT
OR SIGNAL
SOLENOID
AIR
AIR FILTER PRESSURE
DIFFERENTIAL LINES
24 VAC
SIGNAL
0-10
VDC
4-20 ma CONTROL SIGNAL
AIR
INLET
SILENCER DUCT
OUTLET
UNIT
AIR FL
OW