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make-up conductivity less than Medium Range,
in this example 650 uS, the bleed controls @
Med. Cycles
11- Use Up/Down and Left/Right Arrow keys to
Edit the Low Cycles value then press F2 in
this example Low Cycles = 6.1 so the tower
sump would be nominally 2135 uS ( 350 x
6.1)
12- Use Up/Down and Left/Right Arrow keys to
Edit the Low Range value then press F2
When the make-up conductivity less than
Low Range, in this example 350 uS, the
bleed controls @ Low Cycles
10.13 How to Setup a Relay as an Alarm
Output:
An Alarm relay will change states whenever the
controller post an alarm condition on the alarm page.
This method applies to all 9 outputs, however, when
enabling a pulse output, relays 6 – 9, choose the
ON/OFF setting. See section
Configure a Relay.
Note: R1-R5 relays are Form C (SPDT) and if using
NC contact for Alarm, NC contact is not held closed
so losing power won't open the contact.
R6-R9 relays are optoMOS. They can be used with
24VDC/250mA power. They must be in the ON/OFF
mode.
1- To Set a Relay to an Alarm press MENU
2- Use Up/Down Arrows to navigate to I/O
Setup
3- Scroll to select the desired relay (for
example 5:unused) and press OK, if there is
no selection (Empty list) it means you
haven't set any relays as an Event-Other
4- Use Up/Down Arrow keys to select Special
Control then Press OK
5- Use Up/Down Arrow keys to Scroll to Alarm
Output Press F1
6- Use ESC key to Exit
Note: See
9.2 Naming an Input or Output
rename the relay for example to General Alarm
10.14 Prime (Force On) a Relay
All relays can be forced on temporarily if not
disabled, blocked or interlocked. If disabled, see
10.3 Enable and Configure a
Blocks. If Interlocked, see
10.9
To force any relay on, press Menu.
9.2 Enable and
to
Relay. If blocked, see
10.8
Interlocks.
Page 83 of 102
Programming the Outputs
Scroll down to Prime, Force ON and press OK.
Scroll down to the relay of your choice and press
OK.
The timer defaults to 5 minutes. Use the arrows to
adjust as needed. The underline is the cursor.
Press F3 Start
If you wish to stop the relay prior to the timer ending,
press F3 Cancel.
10.15 Sensor Wash:
Future Item
A special control function that allow pH and ORP
sensors in the probe header to be washed inline with
acid based solution on a timer. R6-R9 must be in
ON/OFF mode.
The relay will halt acid and oxidant outputs for a
predetermined time to allow the sensors to recover
from the acid wash.
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