15
d.
pH CONTROL SETTING
1. HI
or
LO RELAY 1
–
The action for this relay can
Programmable to High or
Low control. If in HI-action
the relay will turn
ON
when
the pH is greater or equal to
RELAY 1 set point, which is
modified by the hysteresis
value.
(See
chapter
V.
CONTROLLING
THE
RELAYS
).
User can use [
] and [
/
pH-Recal
.] keys to select the relay action
then press [
↵
] key to save the setting.
Use [
] and [
/
pH-Recal
.] keys to change the blinking digit, use
the [
MODE/-
] key to select another digit and the [
↵
] key to save the
new set point value.
2.
HI
or
LO RELAY 2
– function & setting procedures same with
RELAY 1
3.
HI
or
LO RELAY 3
- function & setting procedures same with
RELAY 1
4
.
HYSTERESIS
(
value
) - this is the actual value of the hysteresis.
You can change this value from 0.00 pH to 3.99 pH.
. ( See chapter
V. CONTROLLING THE RELAYS .)
e. pH
CURRENT SETTING
page
1.
4mA OUT
– This value will be used
in conjunction with 20 mA to plot the
current output. (See chapter
VI
.
4-20
mA OUTPUT
.)
2
. 20mA OUT
– This value will be used
in conjunction with the 4 mA value to
