AUTOFLAME Mk7 - Method of TDS Control

CALL FOR HEAT
Burner is ring, within TDS
Operational Threshold
BLOWDOWN SAMPLE
Default: 25 seconds
(2 - 60 seconds)
Valve fully opens to
take fresh sample
SETTLEMENT TIME
Default: 25 seconds
(2 - 60 seconds)
Valve fully closes to let
the sample settle
BLOWDOWN
MEASUREMENT TIME
Default: 25 seconds
(2 - 10 seconds)
Valve remains fully closed
whilst TDS sample is taken
MEASURED VALUE LESS
THAN TARGET VALUE ?
YES NO
BLOWDOWN TIME
Default: 600 seconds
(2 - 1200 seconds)
Valve blows down at
the angle calculated
by the PI loop
BLOWDOWN TIME
Default: 600 seconds
(2 - 1200 seconds)
Valve blows down at
fully closed until next
TDS sample cycle
4.3 Method of TDS Control
4.3.1 Timing Diagram
4 Total Dissolved Solids Management
Page 56
Mk7 Manual: Expansion Board Set-Up Guide
October 2014