Instruction manual

59
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.
Self Test
The Self Test is used to check the circuitry of the ORP input. Click on the “Self Test” button, and
the controller will display either Pass or Fail, and also readings of a simulated ORP. If the
controller passes self test, and you are having problems reading the correct ORP or calibrating,
then the problem must be with the electrode, wiring or installation.
High Alarm Limit
Type in the text box the ORP value above which a high ORP alarm will be activated. Any value
between –1500 and 1500 is acceptable.
Low Alarm Limit
Type in the text box the ORP value below which a low ORP alarm will be activated. Any value
between –1500 and 1500 is acceptable.
Click on the “Submit” button to save the changes.
6.10 Water Meter Input Menu
(does not appear if the “Not Used” radio button is selected in Water Meter Selection section of the
Start Up page)
Makeup Water Meter (1 through 3 possible)
Type of meter
Click on the radio button to select the type of water meter you have connected to the makeup water
line, Contact, Paddlewheel, or 4-20 mA. If you change the type of meter on this page, you must hit
the “Submit” button in order to see the correct menus below.
Note that different types of water meter selected must be connected to the correct terminal in the
controller:
Water Meter Contact Paddlewheel 4-20 mA
Bleed Bleed WM terminal (CI board) Bleed WM terminal (CI) AI card #2
Source 1 MU Makeup WM terminal (CI) Makeup WM terminal (CI) AI card #1
Source 2 MU DI card #1 DI card #5 AI card #3
Source 3 MU DI card #2 DI card #6 AI card #4
Total/Reset Total
The Total displays the volume of makeup water to enter the system since the last time the totalizer
was reset.
If you want to reset the total, click on the “Reset Total” button.
Last Total Reset
Displays the date and time that the totalizer was last reset.
Rate (only appears if the water meter type is selected as ‘4-20mA’)
Displays the current water flow rate through the water meter.