Hach Lange Relay Module Manual Del Usuario página 11

Option Description
LOW Sets the range where the relay stays on after the
DEADBAND measured value increases above the low alarm value. For
example, if the low alarm is set for 1.0 and the low
deadband is set for 0.5, the relay stays on between
1.0 and 1.5. The default is 5% of the range.
HIGH Sets the range where the relay stays on after the
DEADBAND measured value decreases below the high alarm value.
For example, if the high alarm is set for 4.0 and the high
deadband is set for 0.5, the relay stays on between
3.5 and 4.0. The default is 5% of the range.
OFF DELAY Sets a delay time (0–300 seconds) to set the relay off
(default = 5 seconds).
ON DELAY Sets a delay time (0–300 seconds) to set the relay on
(default = 5 seconds).
4. Select FEEDER CONTROL in the FUNCTION menu and then select
the applicable options in the ACTIVATION menu.
Option Description
PHASE Specifies the relay status if the process value is larger
than the setpoint. HIGH (default)—sets the relay to on
when the process value is larger than the setpoint. LOW
—sets the relay to on when the process value falls below
the setpoint.
SET SETPOINT Sets the process value for the relay to toggle between
the high and low value (default = 10).
DEADBAND Sets a delay so that the relay will be stable as the
process value converges to the setpoint.
OVERFEED Sets the maximum amount of time to get to the process
TIMER setpoint. When the time expires and the relay does not
show the setpoint, the relay is set to off. After an
overfeed alarm occurs, reset the timer manually.
OFF DELAY Sets a delay time to set the relay to off (default =
5 seconds).
ON DELAY Sets a delay time to set the relay to on (default =
5 seconds).
5. Select EVENT CONTROL in the FUNCTION menu and then select
the applicable options in the ACTIVATION menu.
Option Description
SET SETPOINT Sets the value to set the relay to on.
DEADBAND Sets a delay so that the relay will be stable as the process
value converges to the setpoint.
OnMax TIMER Sets the maximum time the relay stays on (default =
0 min).
OffMax TIMER Sets the maximum time the relay stays off (default =
0 min).
OnMin TIMER Sets the time the relay stays on, independent from the
measured value (default = 0 min).
OffMin TIMER Sets the time the relay stays off, independent from the
measured value (default = 0 min).
6. Select SCHEDULER in the FUNCTION menu and then select the
applicable options in the ACTIVATION menu.
Option Description
HOLD OUTPUTS Holds or transfers outputs for the selected channels.
RUN DAYS Selects the days the relay stays on. Options: Sunday,
Monday, Tuesday, Wednesday, Thursday, Friday,
Saturday
START TIME Sets the start time.
INTERVAL Sets the time between activation cycles (default = 5 min).
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