Hach sc1000 user manual System Setup Output Setup mA Output INT/EXT

Advanced Operations

SYSTEM SETUP OUTPUT SETUP mA OUTPUT INT/EXT

Select OUTPUT card 1,2,3 or 4

		Default value: No source
SELECT SOURCE		Selects a probe or creates a formula which delivers the process value that is processed by the
		current output card.
SET PARAMETER		Default value: No Parameter
		Selects a parameter of the selected source.
DATA VIEW		Default value: INPUT VALUE
		Sets the displayed and logged measured value.
	INPUT VALUE	Displays the process value which is read from the selected source after it has been processed
		by the internal formula parser (if prompted)
	CURRENT	Displays the calculated output current
SET FUNCTION		Default value: LINEAR CONTROL
	LINEAR CONTROL	Tracks the measurement value.
	PID CONTROL	Sets the sc1000 controller as a PID controller.
		Default value: 10 mA
SET TRANSFER		Sets the substitute value for the output current in case the selected source reports an internal
		error, is disconnected from the system or its output mode is set to 'Transfer value'.
ON ERROR MODE		Default value: SET TRANSFER
		Sets the sc1000 controller reaction if an internal error occurs.
	HOLD	The current output card operates constantly with the last valid value read from the selected
		source.
	SET TRANSFER	The current output card uses a substitute value for the output current.
SET MODE		Default value: DIRECT
		Defines the point in time when the PID controller increases the Output current
	DIRECT	The SNAP SHOT value is lower than the SETPOINT and vice versa.
	REVERSE	The SNAP SHOT value is higher than the SETPOINT and vice versa.
SET FILTER		Sets the record time (in seconds)
		The output current is based on the average of recorded values during a period of time. The
		period set in this menu.
SCALE 0 mA/4 mA		Default value: 0-20 mA
		Sets the output current range to 0–20 mA or 4–20 mA.
SET HIGH VALUE		Default value: 20
		Sets the selected source value when the output current shall be 20 mA.
		Default value: 0
SET LOW VALUE		Sets the selected source value when the output current shall be 0 mA (Scale is 0-20 mA)
		respectively 4 mA (Scale is 4–20 mA).
		Default value: 20 mA
MAXIMUM		Sets an upper limit for the possible output current value.
		This menu item is displayed if SET FUNCTION is set to PID CONTROL.
		Default value: 0 mA
MINIMUM		Sets the lower limit for the output current.
		This menu item is displayed if SET FUNCTION is set to PID CONTROL.
		Default value: 10
SET SETPOINT		Sets the process value
		The PID controller tries to adjust to this process value.

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