Function Set To Pwm Control/Linear Working Mode - Hach sc1000 User Manual

6.3.3.6 Function set to PWM CONTROL/LINEAR working mode

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