Advanced Operations

6.3.3.4 Function set to 2 POINT CONTROL working mode

2 POINT CONTROL

 

 

 

Default value: DE-ENERGIZED

 

SET TRANSFER

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: HIGH

 

PHASE

Sets the status of the relay. As soon as the process value enters the band between high and low

 

 

 

alarm, the relay state is not changed.

 

 

 

 

 

 

HIGH

Turns the relay ON when the process value exceeds the high alarm

 

 

Turns the relay OFF when the process value falls below the low alarm.

 

 

 

 

 

 

 

 

 

LOW

Turns the relay ON when the process value falls below the low alarm.

 

 

Turns the relay OFF when the process value exceeds the high alarm.

 

 

 

 

 

 

 

 

HIGH ALARM

Default value: 15

 

Sets the upper limit in the unit of the selected parameter of the 2 point control band.

 

 

 

 

 

 

 

 

LOW ALARM

Default value: 5

 

Sets the lower limit in the unit of the selected parameter of the 2 point control band.

 

 

 

 

 

 

 

ON DELAY

Default value: 5 seconds

 

(0 s–999 s)

Sets a delay time for the relay to turn on.

 

 

 

 

OFF DELAY

Default value: 5 seconds

 

(0 s–999 s)

Sets a delay time for the relay to turn off.

 

 

 

 

 

 

 

Default value: 0 minutes (off)

 

OnMax TIMER

Sets a maximum period of time. During this period the relay is turned ON when passing the

 

corresponding limit. As soon as the time expires the relay is turned OFF regardless of the

 

(0 min–999 min)

 

process value.

 

 

 

 

 

 

0=OnMax Timer is not active.

 

 

 

 

 

 

 

Default value: 0 minutes (off)

 

OffMax TIMER

Sets a maximum period of time (in minutes). During this period the relay is turned OFF when

 

passing the corresponding limit. As soon as the time expires the relay is turned ON regardless of

 

(0 min–999 min)

 

the process value.

 

 

 

 

 

 

0=OffMax Timer is not active.

 

 

 

 

 

 

 

Default value: 0 minutes (off)

 

OnMin TIMER

Sets a minimum period of time. During this period the relay is turned ON when passing the

 

corresponding limit. The relay can only be turned OFF after the period has expired and after this

 

(0 min–999 min)

 

expiration will be turned OFF dependent on the process value.

 

 

 

 

 

 

0=OnMin Timer is not active.

 

 

 

 

 

 

 

Default value: 0 minutes (off)

 

OffMin TIMER

Sets a minimum period of time. During this period the relay is turned OFF when passing the

 

corresponding limit. The relay can only be turned ON after the period has expired and after this

 

(0 min–999 min)

 

expiration will be turned ON dependent on the process value.

 

 

 

 

 

 

0=OffMin Timer is not active.

 

 

 

 

 

 

 

Default value: 0 seconds (off)

 

 

 

Indicates a period of time (in seconds) for the expiration of the OnMax TIMER and the OffMax

 

 

 

TIMER.

 

MAX TIMER EXPIRE

Relay turned on, OnMax TIMER activated: The time left is displayed before the relay is turned off

 

 

 

automatically.

 

 

 

Relay turned off, OffMax TIMER activated: The time left is displayed before the relay is turned on

 

 

 

again.

 

 

 

 

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Hach sc1000 user manual Function set to 2 Point Control working mode, MAX Timer Expire