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There are two methods available to blowdown based on volume, FOR BLOWDOWN FLOW and FOR
BLOWDOWN TIME.
With FOR BLOWDOWN FLOW, the blowdown relay will be on until a specified amount of blowdown is
met after a specified amount of make-up has been received.
With FOR BLOWDOWN TIME, the blowdown relay will be on for a specified amount of time after a
specified amount of make-up has been received.
If FOR BLOWDOWN FLOW is selected:
Use the keypad to enter the volume of makeup after which you want to blowdown then press ‖ENT‖
Input the volume of blowdown that you want to blow down then press ‖ENT‖.
The next screen is the BLOWDOWN TIMEOUT screen. Enter the amount of blowdown time before the
EXCESS BLOWDOWN TIME ALARM will occur then press ‖ENT‖. This alarm will close the
blowdown valve and it will give an alarm indication on the display. The alarm time is set in hours and
minutes. To disable this feature, enter ―00:00‖.
13.3 Change a Relay Name
The name of each individual relay can be changed to any 4-character name. This is useful to designate
the chemical name for each relay. Use the arrow keys to change the character and the ENT key to
move to the next character.
From the BLOWDOWN RELAY OPTIONS screen press ‖4‖ CHANGE MY NAME.
13.4 Scheduled Lock out
This setting allows the user the choice of whether to lock out a relay during a scheduled feed sequence
or not. If you do not want to lock out this relay during a scheduled feed sequence select NO.
From the RELAY OPTIONS screen press‖5‖ SCHEDULED LOCKOUT?.
OLD NAME=
RLY2
NEW NAME=
ACID
<UP><DOWN>ENT: ACCEPT
LOCK OUT RELAY DURING
SCHEDULED FEED?
=========================
1 * YES
2 NO
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