YSI 5500D-1 - Manual (Page 54)

YSI 5X00
107
YSI 5X00
106
Notes:
- It is normal to hear an on-board relay “click” when switching to or from the
4-20ma aux input type.
- Analog systems will not monitor, control, or alarm properly if a device that
operates outside the configured analog range is installed and configured.
Suffix
Menus → System → Configure Aux →Aux 1-6→Suffix
Enter the Suffix (up to 4 characters) to describe the input type or units. The suffix
is displayed at the Run Screen. The suffix is typically used to describe the input
signal type.
Example - when using a total dissolved gas pressure sensor “mmHg” could be used
as a suffix for measuring TGP (total dissolved gas pressure) - figure 4.7, page 108.
Min and Max values
Menus → System → Configure Aux →Aux 1-2 →Min
→Max
Min and Max values are user defined. The range is -10000 to 10000. Min and Max
values are scale the display output value. The min and max values may be configured
to correspond to the minimum input level (i.e. 0VDC or 4mA) and maximum input
level (i.e. 1VDC, 5VDC, or 20mA). The Min value must be less than Max value.
Example - when using a total dissolved gas pressure sensor (0-5VDC input type)
enter -400 for min value. The 5X00 will display “-400” when the input value is 0VDC.
Configure the max value to correspond to the maximum input value as +400. The
5X00 will display “400” when input value is 5VDC.
Notes:
- The 5X00 will monitor and data log based on the “min” and “max” voltage
or current signal.
- To enter negative values, type the whole number then select “-” on the nu-
meric keypad.
- Whenever min and/or max values are changed, go to Menus → System →
Sensor Setup → Aux 1-6 → Control Low and Control High menu to verify
control/alarm values are correct for the application.
Configuring the 5X00
Input Scale Min and Max values
Menus → System → Configure Aux →Aux 1-6 →Input Scale Min
→Input Scale Max
Input scaling allows a way to view data withn a specific input range of the input type
(0-1v, 0-5v, 420/ma) in greater resolution. In the below example 0-1v is the input
type and display format = 0. The configured Min value is 0, and the configured Max
value is 1000. The input scale Min is .25 and the input scale Max is .75. (The user
wants to only view data within this specific range). In the below example an input
value of .25v = a display and datalog value of 0. An input value of .50v = a display
value and datalog value of 1000.
Display Format
Menus → System → Configure Aux →Aux 1-6→Display Format
Configure the Display format (0, 0.0, or 0.00) based on the resolution to be displayed
at the Run Screen.
Example - when using a total dissolved gas pressure sensor, configure the display
format as 0.0 - figure 4.7 below.
In the below screen shot, the Run Screen is displaying aux name “TGP,” suffix
“mmHg,” with display format “0.0”. The display value represents an input of 1.875
volts with 0-5VDC analog aux configuration. The min value = “-400”. The max value
= “+400.” The control/alarm low is “-50.” Alarms are enabled for this aux input.
Configuring the 5X00