User manual HANNA INSTRUMENTS HI 83540

[. . . ] These instruments are in compliance with directives. TABLE OF CONTENTS 1 THEORY OF FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. 1 Irrigation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. 2 Conductivity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3. 3 Fertilization Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] All Fertigation Controller's statistics including accumulations can be erased (manually, daily at specified hour, on overflow ) within panel S 61 (ERASE STATISTICS). This panel contains the following information: From Time stamp indicating the beginning of the overall irrigation process. Accumulation Total accumulation in time or volume System clock 5. 3. 2 PROGRAM ACCUMUL ­ C 20 From: 09-26 13:37;12 000:00:25 Prog 01 Activations 03 13:15 PROGRAM ACCUMUL C20 This panel provides a total (in time or volume) for each of the irrigation programs. This panel contains the following information: From Time stamp indicating the start of recording (statistics). Accumulation Total accumulation in time or volume for the indexed program. Program Number Reflects the selected program (can be selected only inside panel C 03). Activations The number of activations of the indexed program since the recording start. System clock 34 5. 3. 3 SECTOR ACCUMUL ­ C 21 From: 09-26 13:37;12 000:00:17 Sect 01/01 13:15 SECTOR ACCUMUL C21 This panel provides a total (in time or volume) for each of the irrigation sectors. This panel contains the following information: From Time stamp indicating the start of recording (statistics). Accumulation Total accumulation in time or volume for the indexed valve. System clock 5. 3. 4 TOTAL AVERAGES ­ C 22 From: 09-26 13:37;12 05. 3pH 06. 7mS 13:15 TOTAL AVERAGES C22 This panel indicates the overall average of pH and conductivity for the entire irrigation process. System clock ANOMALY The anomaly log record number and "/" the number of all anomalies since the system statistics were recorded. The anomalies log record number can be erased on panel C 61 erasing the statistics. 18-08 15:05:30 15:05 Log 0012 Lev 03 C28 The Fertigation Controller log system is a three level hierarchically designed, which means that the events are classified in three selectable categories. The consulting log level displayed in this panel can be changed directly using the 38 SET key or via panel S 59 (SET LOG LEVELS). The UP and DOWN arrow keys are available to move between log records in a "select previous/next" manner. This panel displays the following information: Log record Log record description. Log record number Log consulting level System clock 5. 6 GENERAL SETTINGS The Setting panels provide an interface by which the user can set up the functionality of the Fertigation Controller to suite the application requirements. The parameters in any setting panel can be modified only if the user presses the SET key (entering the setting mode). Once pressing the SET key the cursor (focus) is passed to the first adjustable parameter on the panel. Using the keypad along with the arrow keys the user can set the desired parameters and navigate within the panel. In SET MODE panel the browsing methods are disabled until the user exits from SET MODE by pressing the ENTER (validation) or ESC (cancel) key. [. . . ] EC sensor out of range This indicates that the controller cannot adjust the EC value of the process within the specified range. Check panel S41 (COND CONTROL) and S39 (SET FERTILIZERS) to insure the settings are correct. Also you should check the 4 EC tanks and supply lines for proper level and function. Check the EC level of the incoming water to determine if a change has occurred that may not be correctable by the type and amount of fertilizers being used. [. . . ]