Hach sc1000 Function set to PWM CONTROL/LINEAR working mode, Pwm Control/Linear, Duty Cycle

Advanced Operations

6.3.3.6 Function set to PWM CONTROL/LINEAR working mode

PWM CONTROL/LINEAR

SET FUNCTION		Default value: LINEAR
		The 2nd SET FUNCTION menu sets the PWM signal status
	LINEAR	Signal is linearly dependent on the process value.
	PID CONTROL	Signal works as a PID controller.
		Default value: 0 seconds
SET TRANSFER		Sets a substitute PWM ratio when some error conditions are detected in the selected source or if
		the source is missing.
HIGH ALARM		Default value: 15
		Sets the process value which leads the PWM ratio to 100% (DUTY CYCLE set to DIRECT).
LOW ALARM		Default value: 5
		Sets the process value which leads the PWM ratio to 0% (DUTY CYCLE set to DIRECT).
PERIOD (0 s–600 s)		Default value: 5 seconds
		Sets the duration time of one PWM period.
MINIMUM		Default value: 0%
(0%–100%)		Lower limit of the operation range.
MAXIMUM		Default value: 100%
(0%–100%)		Upper limit of the operation range (Figure 61).
DUTY CYCLE		Default value: DIRECT
		Sets the status of PWM ratio.
	DIRECT	PWM ratio rises with a rising process value.
	REVERSE	PWM ratio falls with a rising process value.
INPUT VALUE		Displays the process value read from the selected source after it has been processed by the
		internal formula parser (if prompted).

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