Instruction manual

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4.7 Startup
Once the controller has been set up for your application, start up is a simple process. Check your
supply of chemicals, turn on the controller power, calibrate all sensors as necessary, supply the
sensors with a flow of sample water, and it will start controlling.
4.8 Shut Down
To shut down the controller, simply turn off the power. All set points will be retained in memory.
It is important that the optional pH and ORP electrodes remain wet. The standard flow
assembly incorporates a U-trap in its design that guarantees that the electrodes will stay wet as
long as the sample valve is not opened. If it is possible for these electrodes to dry out, remove
them from the flow assembly and place them in a cup or back in their original soaker bottles
containing either pH 4 buffer solution or cooling tower water. Take care to avoid freezing
temperatures when storing the electrodes to avoid breakage of the glass.
5.0 OPERATION – Using Local Display and Keypad
On power-up, the WebMaster display will show the process values from the sensors, and the most
important alarm message. If there is more than one alarm, then pressing the Down Arrow key will
display the additional alarm messages.
Pressing the Enter key will display the Main Menu. The menu selections are:
Input Summary
Output Summary
Alarms
Calibration
Relay Control (HOA)
Set Points
Communication
Access Codes
Use the Next key to move the cursor down the list, or the Prev key to move the cursor up the list.
Once the cursor is on the desired menu, press the Enter key to enter that menu.
5.1 Input Summary
The Input Summary menu displays the readings from all of the sensors, as well as any optional
digital inputs, analog inputs, and water meters. Use the Next key to scroll down the list, or the Prev
key to scroll up the list. There are no programmable parameters in this menu. No access code is
required to enter this menu.
Press the Exit key to return to the Main Menu.
5.2 Output Summary
The Output Summary menu displays the state of the relays and the mA output of the optional 4-20
mA output cards. Use the Next key to scroll down the list, or the Prev key to scroll up the list.
There are no programmable parameters in this menu. No access code is required to enter this
menu.
Press the Exit key to return to the Main Menu.