Hanna-instruments HI 8000 Series Manual de usuario descargar pdf (Pagina 15)

- To erase all statistics, use panel S 61 (ERASE STATISTICS). Statistics indi-

cates pH and conductivity averages for all irrigation programs and sectors

in addition to average total irrigation accumulation.

- To erase the settings of one irrigation program or to erase all settings for all

irrigation programs, use panel S 62 (ERASE SETTINGS).

3.9 ALARMS

The Fertigation Controller has the capability to supervise and generate an alarm

for the following conditions:

- Conductivity sensor out of range. Reference, minimal and maximal offset

and threshold for conductivity alarm are set using panel S 41 (COND

CONTROL). The current values of conductivity sensors are displayed on

panel C 05 (EC STATE)

- A difference greater than the set value between the first and second con-

ductivity sensors; Maximum value of difference is set using panel S 55

(SENSORS CONFIG)

- pH sensor out of range. The reference, minimum and maximum offset and

threshold for pH alarm are set using panel S 40 (PH CONTROL). The

current values of pH sensors are displayed on panel C 04 (pH STATE)

- A difference greater than the set value between pH sensors; the maximum

difference value is set using panel S 55 (SENSORS CONFIG)

- Problems with the water supply

- Dirty filters

When the level is low in the fertilizer and acid tanks the system will take appro-

priate action and record the alarm. These actions can be:

- in case of a pH alarm condition, the irrigation process can be suspended

or continued depending on the choice set within panel S 52 (ALARM

BEHAVIOR) depending on the choice set within.

- in case of an EC alarm condition, the irrigation process can be suspended

or continued depending on the choice set within panel S 52 (ALARM

BEHAVIOR) depending on the choice set within.

- in case of a dirty filter alarm condition, start the filter cleaning program in

accordance with the priority and working time settings

- in case of a water supply alarm situation, the Controller will stop every

irrigation process until the alarm is shot off.

All alarm situations are displayed on panel C 25 (ALARM).

All anomalies (old alarm conditions) are displayed on panel C 27 (ANOMALY).

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 87 88

Sin comentarios

Hanna-instruments HI 8000 Series Manual de usuario Pagina 15