YSI 5200 - Manual (Page 55)

YSI Incorporated 53 5200 Recirculating System Monitor
Calibration
Calibration is covered in Section 6 Calibration. See Section 6.2.5 ORP Calibration for details.
Set Point Menu
The ORP level can be used as an indicator of ozone. Acceptable levels are between 0 and 450 mV. The
ORP Set Point can be maintained through the use of an ozonizer in a monitoring and control system. The
Set Point can be established anywhere from –999 to +999 mV. For controlling applications you will also
need to establish the Low and High control values and alarm values.
SetPoint
The ORP Set Point defines the optimum ORP level that you wish the YSI 5200 to maintain in the aquatic
environment. See Section 5.3.1 Entering Setpoint and Range Values for an overview of control functions.
Control Menu
After entering the ORP set point and ranges, use the Control Menu to select which relay each range or
alarm will activate.
Alarm System
The alarm system for each measurement parameter can be turned on or off. When on, an audible alarm
will sound on the YSI 5200 and an alarm page will be sent (if a modem is installed and paging is
enabled). The alarm will remain on until a key is pressed. See 7.1 Alarm Logic Flow Charts for details.