Hanna Instruments HI 8050 User Manual

Page 46

− TTTTTotal

otal

otal - Total number of valves assigned to the indicated program.

− VVVVValue

alue

alue - The selectable irrigation (time or volume) value for the indexed

valve.

IRRIGATION CORR – S44

Manual +050% Prog 07

Temp extension:+010%

TLow:+20C THigh:+40C

IRRIGATION CORR S44

This panel allows the setting of corrections (adjustments) to the irrigations and
fertilization process. The program number indexes this panel. This panel dis-
plays and allows the setting of the following parameters:
− Manual

Manual

Manual - The selectable manual adjustment to the irrigation process.

− PPPPProgram Number

rogram Number

rogram Number - Panel index (used to view settings for all programs).

− TTTTTemp extension

emp extension

emp extension - The selectable adjustment to the irrigation process as a

result of the effects of temperature. If the temperature is below TLow no
irrigation extension is made. If the temperature is between TLow and THigh
the extension will increase according to the temperature at Thigh and
above the temperature extension will be the maximum set by the user.

− TLow

TLow

TLow – the lower limit of temperature below which no temperature correc-

tion is done.

− THigh

THigh

THigh – the upper limit of temperature at which the correction is fully

applied.

NOTE: TLow and THigh are used to correct both irrigation and fertilization
with temperature. For the EC control mode if the temperature exceeds the Tlow
parameter the EC setpoint decreases proportional to the temperature increase.
When the temperature reaches the THigh value, the EC setpoint is equal tothe
water EC so no connection is done. Above this temperature the EC control is
deactivated. For volume fertilizer control or for the ratiometric control the
temperature correction simply disables the ferttilizer control.

FILTERS CTRL – S45

Link 05 Filter 01

Clean on alarm: Y

Clean time: 01:01:02

FILTERS CTRL S45

Both filter-cleaning programs are set via this panel. In this panel the Filter
number is used as the index. This panel displays and allows the setting of the
following parameters:

This manual is related to the following products:

HI 8060