Acromet WG-602 Manual
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Contents
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18• Shut-down and Winterizing: If the analyzer will not be operating for an extended period of timeor in areas where temperatures drop below freezing, all water must be removed from the analyzerto prevent components from breaking and the probes must be removed and stored in a warmarea and kept wet at all times.• Troubleshooting: Occasionally problems will occur with the analyzer readings or chemicaldosing. These problems are most often simple to correct. The troubleshooting section providesan outline to follow to help correct the problems easily.4.1 Monitoring WaterGuard AlarmsWaterGuard issues alarms when it detects chemical levels that are above or below the allowed range.Every alarm is automatically displayed in the LCD status display and logged in the data logger. Mostdeviations in chemical levels, however, are automatically corrected. Thus, the internal alarms do notimmediately activate an external alarm. A delay mechanism prevents false alarms from minor deviationsthat were automatically corrected. The external alarm is only activated after an internal alarm has beencontinuously active for a certain period of time, as defined by the operator.The Alarm Delay command in the Operator menu sets the number of seconds WaterGuard waits beforeclosing Relay 5, the relay that operates the external alarm. Only one alarm is shown on the screen at atime based on importance and the order in which it should be fixed. For example, if the pH is high andthe ORP is low, only the pH alarm will be indicated since lowering the pH will likely also correct the lowORP. All of the alarms are presented in Table 5 along with a description and resulting action of theanalyzer/controller.Table 5: Alarm Description and Result4.2 Shut-Down and WinterizingThe WaterGuard analyzer is designed to keep the probes submerged even if there is no flow to theanalyzer. However, if the analyzer is going to be offline for an extended period of time and/or exposed tofreezing temperatures, it must be winterized to prevent damage to the analyzer and the probes.1) Store all probes following directions in the supplemental manuals for each sensor.2) Drain the flow cell completely by opening the sampling valve on the bottom. Leave the valve in theopen position to allow air to completely dry the cell.3) Check the security of the analyzer doors to ensure a weatherproof seal. |
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