Hach NA5600 sc Na+ Manual De Operaciones página 17

Figure 5 Alarm function
1 High alarm
2 High deadband
3 Low deadband
• FEEDER CONTROL function (refer to
Option
PHASE
SET SETPOINT
DEADBAND
OVERFEED
TIMER
OFF DELAY
ON DELAY
4 Low alarm
5 ON delay
6 OFF delay
Figure 6
Description
HIGH—Sets the relay to on when the measured value is more than the
setpoint value. LOW—Sets the relay to on when the measured value is
less than the setpoint value.
Sets a measurement value as the setpoint value.
Sets the deadband value for the relay. If PHASE is set to LOW, the relay
stays on until the measurement value increases to more than the setpoint
value plus the deadband value. If PHASE is set to HIGH, the relay stays on
until the measurement value decreases to less than the setpoint value
minus the deadband value.
Sets a time limit for how long the relay can stay on. Once an overfeed
alarm is present, it must be manually reset. Refer to
timer for relays on page 22.
Sets a delay time before the relay is set to off.
Sets a delay time before the relay is set to on.
7 Time (x-axis)
8 Source (y-axis)
and Figure 7)
Reset the overfeed
English 17