Hanna Instruments PCA 310 - Manual (Page 52)

52
ANALOG OUTPUTS
The PCA 310-330 analyzers has two current analog outputs.
Each one can be configured as 0-20 mA, 4-20 mA or dosing
type. Also they can be assigned to one of the measurement
parameters: Cl, pH, Orp, Temp.
SELECT THE ANALOG OUTPUT TYPE
To select the analog output type enter in “General Menu” -
“Analog Output1” or “Analog Output2”.
The analog output
could be assigned
to one of the four
measured parameters.
To define this assign-
ment, edit the “Out
Param.” field. “Chlorine”, “pH”, “ORP” and “Temper.”
options are available.
To select the analog output type edit the “Type” line. The
available options are: 0-20 mA , 4-20 mA current outputs.
DOSING THROUGH 4-20 mA OUTPUT
Select “General Menu” - “Analog Output1” or “Analog
Output2” - “Type” as Dosing to activate this feature. The
output become 4-20 mA current type, proportional with pH
or chlorine regulator output.
The 4 mA correspond with pump stop and 20 mA correspond
to pump operating at full speed.
This mode should be selected when a proportional pump is
attached to the analyzer.
Note: In this mode calibration is not allowed. If calibration menu is
entered, the following message appears: “Analog output value
cannot be changed when analog output type is dosing”.
Out Param.:Chlorine
Type
:Dosing
Cal.Analog Out Max.
Cal.Analog Out Min.
Output Middle Range