HRX-OM-W002-A
Chapter 5
Display and Setting of Various Functions
5.5 Advanced setting mode
HRR Series
5-24
Electric conductivity control
method
8.
Press the [
▼] key. Displays
electric conductivity control
method setting screen.
* Displayed only when option DM [Electrical conductivity control function , DI water
(pure water) piping] is selected.
Without option DM, "8. Electrical conductivity control method", "9. Electrical conductivity
set value", " 10. Electric conductivity control hysteresis " are not displayed.
Electric conductivity control
method
When option DM is selected, circulating fluid flows to the DI filter via a
solenoid valve to control electric conductivity.
This solenoid valve can be set to always OPEN,or always CLOSED.
The factory setting is "CTRL: Electric conductivity control".
By pressi
ng the [▲], [▼] key, always OPEN, or always CLOSED
can be set.
Selection item
Solenoid valve operation
CTRL
The solenoid valve opens and closes
to control the conductivity.
OPEN
Solenoid valve always open
CLSE
Solenoid valve always closed
Electric conductivity setting value
9.
Press the [
▼] key. Displays electric conductivity setting value setting screen.
* Displayed only when option DM [with electric conductivity control function , DI water (pure
water) piping] is selected.
RUN
CTRL
：
Electric conductivity control enabled (initial value)
DI
⇒
CTRL
(
Alternately displayed
)
RUN
Electric conductivity setting value
Unit: μS / cm
This function controls the offset temperature to the circulating fluid
discharge temperature
Control range of the circulating fluid temperature is 10.0
o
C to 35.0
o
C.
When the circulating fluid temperature is set to 10.0
o
C and the offset
temperature to -20.0
o
C, the offset temperature is automatically
adjusted to 0.0oC (0.0
o
F) depending on the offset mode.
