13
4. pH control settings page
a. Screen illustration
pH CONTROL SETTINGS
1.HI RELAY 1:10.00 pH
3.HYSTERESIS:CENTER
2.LO RELAY 2: 4.00 pH
4.HYSTERESIS:1.00 pH
* SAVING *
1)
HI RELAY 1
- The control type for this relay is changeable, the user can choose “
HI
”-
type or “
LO
” type. In HI-type,
RELAY 1
will turn
ON
if the pH is greater than the
RELAY 1
setting. In LO-type,
RELAY 1
will turn
ON
if the pH is less than the
RELAY 1
setting which is modified by the hysteresis value and hysteresis mode.
Use
“UP”
and
“DOWN”
keys to change the
RELAY 1
type then press “
ENTER”
key
to save. After selecting the
RELAY 1
type, the user can now select the
RELAY 1
setting.
Use
“UP”
and
“DOWN”
keys to change the blinking digit. Use the “
MODE”
key to
select another digit and the “
ENTER”
key to save the new setting.
2)
LO RELAY 2
- The control type for this relay is changeable, the user can choose “
HI
”-
type or “
LO
” type. In HI-type,
RELAY 2
will turn
ON
if the pH is greater than the
RELAY 2
setting. In LO-type,
RELAY 2
will turn
ON
if the pH is less than the
RELAY 2
setting which is modified by the hysteresis value and hysteresis mode.
Use
“UP”
and
“DOWN”
keys to change the
RELAY 2
type then press “
ENTER”
to
save. After selecting the
RELAY 2
type, the user can now select the
RELAY 2
setting.
Use
“UP”
and
“DOWN”
keys to change the blinking digit. Use the “
MODE”
key to
select another digit and the “
ENTER”
key to save the new setting.
3)
HYSTERESIS
- This is the hysteresis mode for pH
RELAY 1
and pH
RELAY 2
. The
user can choose between “
CENTER
” or “
EDGE
”.
4)
HYSTERESIS
- This is the actual value of the hysteresis. The user can change this
value from
0.01
to
3.99
pH.
