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Option
Description
SET
Set the transfer state of the relay—DE-ENERGIZED
TRANSFER
(default) or ENERGIZED. During calibration, the relays
can be held, transferred or kept active. When transfer is
selected, the relays are held at the transfer state.
ACTIVATION
This menu changes depending on the selected function of
the relay (alarm relay, control relay or status relay). Refer
to SET FUNCTION.
A table for each relay type follows. Refer to the applicable
table for the configuration options.
Alarm relay
Option
Description
LOW ALARM
Set the low alarm value—0.00 (default) to 100.00. The
relay is energized when the measured turbidity is lower
than the low alarm value.
HIGH ALARM
Setsthe high alarm value—0.00 to 100.00 (default). The
relay is energized when the measured turbidity is higher
than the high alarm value.
LOW
Set the measured turbidity range in which the relay stays
DEADBAND
on after the measured turbidity increases above the low
alarm value—0.00 (default) to 10.00.
HIGH
Set the measured turbidity range in which the relay stays
DEADBAND
on after the measured value decreases below the high
alarm value—0.00 (default) to 10.00.
OFF DELAY
Set the delay time for the relay to switch off—0 (default)
to 300 seconds.
ON DELAY
Set the delay time for the relay to switch on—0 (default)
to 300 seconds.
20 English
Control relay
Option
Description
PHASE
Set the phase for the relay to high or low. HIGH (default)
—The relay is energized when the measured turbidity is
higher than the setpoint. LOW—The relay is energized
when the measured turbidity is lower than the setpoint.
SET SETPOINT
Set the setpoint (measured turbidity) value at which the
relay is energized—0.00 to 100.00 (default).
DEADBAND
Set the measured turbidity range in which the relay stays
on—0.00 (default) to 10.00. For a high phase relay, this is
the range after the measured value decreases below the
setpoint. For a low phase relay, this is the range after the
measured value increases above the setpoint.
OVERFEED
Set the time to limit how long the relay can stay on—
TIMER
0.0 (default) to 999.9 minutes. For more details on
overfeed timer operation, refer to
control relays
OFF DELAY
Set the delay time for the relay to switch off—0 (default) to
300 seconds.
ON DELAY
Set the delay time for the relay to switch on—0 (default) to
300 seconds.
Status relay
Option
Description
SET
Set the status relay type. ALL (default)—The relay is
STATUS
energized when there is a "Fail" or a "Chamber Unknown"
TYPE
condition or a "Chamber Dirty" condition. WARN—The relay is
energized only when there is a "Chamber Dirty" condition.
FAIL—The relay is energized only when there is a "Fail" or a
"Chamber Unknown" system condition. Refer to
Troubleshooting
3. Push ENTER to confirm.
Overfeed timer for control relays
The overfeed timer setting prevents a condition that keeps the measured
turbidity higher than the setpoint or deadband setting (e.g., damaged
Overfeed timer for
on page 20.
on page 24 for the list of conditions.
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