Walchem WebMaster, Инструкция по эксплуатации

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Calculated Offset
This displays the mV output of the ORP electrode at 0 mV as of the last calibration. The offset
information is helpful for troubleshooting.
High-High Alarm Limit
Type in the text box the sensor process value above which you a want a high-high alarm to occur.
High Alarm Limit
Type in the text box the sensor process value above which you a want a high alarm to occur.
Low Alarm Limit
Type in the text box the sensor process value below which you want a low alarm to occur.
Low-Low Alarm Limit
Type in the text box the sensor process value below which you want a low-low alarm to occur.
Alarm Dead Band
Type in the text box the dead band to be used for each alarm set point.
Damping
Damping is applied to the sensor input by taking a running average of the readings of the input
signal over the time frame specified by the damping setting (0-60 seconds)
.
The averaged reading
is displayed and used for control. Type in the text box the desired time frame.
6.7 Sensor Menu – Chlorine, Chlorine Dioxide Inputs
Select the option or type in the values that you want for each of the sections on the page. When
you click on the “Submit” button at the bottom of the page, your changes will take effect. If you
move to another page without clicking “Submit” first, your changes will be lost!
Certain menu sections will only be visible if you have selected certain options in the start up menu.
Type of Sensor
Click the pull-down to select the type of sensor that you have installed. The rest of this section
assumes that you have selected Chlorine or Chlorine Dioxide.
Custom Name
You can rename the input by typing a custom name in the text box provided. This name will
appear as the link to the input page, on the System Summary report, as a choice for relay input
assignments, on data logs, and in alarm messages.
Backup Sensor Mode
The redundant sensor algorithm will allow the user to define a primary sensor to use for control
and a backup sensor. If the primary sensor goes invalid, the backup sensor will automatically take
over control, and the sensor error alarm will activate. If the sensors don’t match each other within
user-defined limits but both are valid readings, control will stop and a Sensor Deviated alarm will
activate. If the backup sensor goes invalid while the primary sensor is OK, control continues but