110
Hand Time Limit
Type in the text box the maximum number of minutes that the relay can be activated in the Hand
mode. Any value between 1 and 1440 is acceptable
Click on the “Submit” button to save the changes.
Event Log
Click on the link to view the event log. The event log contains the date and time of each relay
activation and deactivation, as well as the state of each Interlock, Level Switch, or Generic digital
input.
Type of Event
Status to generate a ‘1’ in the log Status to generate a ‘0’ in the log
Relay output
Relay activated
Relay not activated
Interlock DI
In the Interlock state as defined in
the Interlock page
In the non-Interlock state as defined in
the Interlock page
Level Switch DI
In the Low Alarm state as defined
in the Level Switches page
In the Normal state as defined in the
Level Switches page
Generic DI –
Alarm selected
In the Alarm state as defined in the
Generic Inputs page
In the Normal state as defined in the
Generic Inputs page
Generic DI – No
Alarm selected
Switch closed
Switch open
A window will open to ask if you would like to open the file or save it to disk. Select the method
you would like to use. The file is .csv (comma separated variable) file that will open in a
spreadsheet such as Excel.
6.30 Relay (1 – 8) Output Menus – Spike Set Point Types
This page is used to activate the relay based on one set point for a majority of the time, and then
spiking the concentration for a programmable amount of time, as often as once per day, on a one
week, 2 week or 4 week schedule. This is typically an oxidizer addition based on an ORP
electrode.
You may also change the Relay Control Mode here. If you do, you will have to reselect the Input
Assignment as well.
This section assumes that the Relay Control Mode is set to Spike Set Point (1, 2 or 4 week cycle).
Other control mode types are described in other sections of the manual.
Relay Control Mode
Click on the arrow of the pull down menu and select the way that you want to control the relay.
See Section 6.2 for details on each control mode.
Relay Input Assignment
Click on the arrow of the pull down menu to select the sensor to be used to activate this relay.
Current Reading
This is a display of the current process value as measured by the assigned sensor.
Status
This displays the current status of the relay output, either “Off” or “On”, and if on, the amount of
time it has been on. Possible status messages are Off, Off/Manual, On/Time counting down and
