Hanna Instruments hi 8001 User Manual
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Ctrl in Pre / Post
Press Y (yes) then ENTER to control pH prior and after irrigation.
Use acid in pHCtrl
Press Y (yes) or N (no) then ENTER to control dosing of acid or base.
5.9.2 ALARM BEHAVIOR – S 52
Ctrl on pH alarm: Y
Irrig on pH alarm: Y
Ctrl on EC alarm: Y
ALARM BEHAVIOR S52
This panel allows the selection of specific alarm behavior. Once entering the set
mode, one of the three choices can be selected using the arrow keys. Y (yes) can
be entered next to the selected option. Y (yes) and N (no) keys are used to select
the option of continuing or stopping control or irrigation during a pH or EC
alarm condition. This panel displays and allows the setting of the following
parameters:
Ctrl on pH alarm
mode, one of the three choices can be selected using the arrow keys. Y (yes) can
be entered next to the selected option. Y (yes) and N (no) keys are used to select
the option of continuing or stopping control or irrigation during a pH or EC
alarm condition. This panel displays and allows the setting of the following
parameters:
Ctrl on pH alarm
Pressing Y (yes) then ENTER allows the controller to continue the pH con-
trol execution during a pH alarm condition.
trol execution during a pH alarm condition.
Irrig on pH alarm
Pressing Y (yes) then ENTER allows the controller to continue irrigation
during a pH alarm condition.
during a pH alarm condition.
Ctrl on EC alarm
Pressing Y (yes) then ENTER allows the controller to continue the conduc-
tivity control execution during an EC alarm condition.
tivity control execution during an EC alarm condition.
5.9.3 IRRIG CTRL MODE – S 53
Volume control: N
Time control: Y
IRRIG CTRL MODE S53
This panel allows the selection of control based on time or volume. This feature,
once set applies to all programs of the Fertigation Controller. Y (yes) and N (no)
keys are used to select only one of the two options. Switching the control mode is
only possible if no active programs are running.
once set applies to all programs of the Fertigation Controller. Y (yes) and N (no)
keys are used to select only one of the two options. Switching the control mode is
only possible if no active programs are running.