Function Set To Alarm Working Mode - Hach sc1000 User Manual

Advanced Operations
SYSTEM SETUP
RELAY
RELAY INT/EXT
FEEDER CONTROL
2 POINT CONTROL
WARNING
PWM Control
FREQ. CONTROL
TIMER
SYSTEM ERROR
INPUT VALUE
LOG INTERVAL

6.3.3.2 Function set to ALARM working mode

ALARM
SET TRANSFER
PHASE
DIRECT
REVERSE
HIGH ALARM
LOW ALARM
HIGH DEADBAND
LOW DEADBAND
ON DELAY
(0 s–999 s)
OFF DELAY
(0 s–999 s)
88
Operates in response to the measured parameter. Can be set for phasing, set point, deadband,
overfeed timer, and ON/OFF delay.
Operates in response to the measured parameter using two setpoints.
Activated when the analyzer detects a probe warning. Indicates warning and error condition of
selected probes.
Allows the relay to provide a pulse width modulated output.
Allows the relay to cycle at a frequency between the minimum pulses per minute and maximum
pulses per minute.
Allows the relay to switch at certain times independent of any process value
Indicates if a probe in the system has an internal error or warning
The process value read from the selected source after it has been processed by the internal
formula parser (if prompted).
Default value: OFF
Sets the interval for logging the displayed value into the data logger.
Options: OFF, 5min, 10min, 15min, 20min, 30min
Default value: DE-ENERGIZED
Sets the status of the relay (ENERGIZED/DE-ENERGIZED) if error conditions are detected in
the selected source or if the source is missing.
Default value: DIRECT
Decides if the relay is turned on or off when the process value is leaving the controlled band.
Relay is turned on when leaving the controlled band
Relay is turned off when leaving the controlled band
Default value: 15
Sets the maximum of the controlled band in the selected parameter unit.
Default value: 5
Sets the minimum of the controlled band in the selected parameter unit.
Default value: 1
Sets the hysteresis value used at the upper limit.
Default value: 1
Sets the hysteresis value used at the lower limit
Default value: 5 seconds
Sets a delay time for the relay to turn on.
Default value: 5 seconds
Sets a delay time for the relay to turn off.