User manual

Model: 2100 &2300 Series
2100UM22.DOC Rev: 2.2
- 15 -
3-Relay3 4-Relay4
5-Disable Alrms (ENA)
 Disable relays. Pressing 5 toggles between Enabling (ENA) and Disabling (DIS) alarms.
The current state is displayed on the right extreme of the bottom line of the LCD. A Disable
setting will disable Alarm relay alarms even if an Alarm condition exists. The factory default
setting is ON (ENA) which allows Alarm relays activation. Relays can be enabled AFTER
calibration and setup are complete.
 Press 1 to setup Relay1 (of 4):
* RELAY 1 SETTINGS *
Action: HI (1 for LO)
Flsafe: OFF(1 for ON)
 Next select the Alarm Action by pressing 1 to toggle between High and Low action. See
Section 4.3.2 – 4.3.4 for help in selecting this value. Press ENTER after selecting Action.
 Next select the Failsafe type by pressing 1 to toggle between On and Off. See Section 4.3.2
– 4.3.4 for help in selecting this value. Press ENTER after selecting the Failsafe type.
 After selecting the Failsafe setting the following menu is displayed.:
* RELAY 1 SETTINGS *
Hiset (%lvl) 20.00
Loset (%lvl) 15.00
On Delay (sec): 0
 Enter the High and Low alarm (Hiset and Loset) values in percent level. Press Enter after
each entry.
 If Differential control is not desired then set the High and Low alarms to the same value.
 Finally, set the ON delay in seconds. This is how long an alarm condition must exist before
the corresponding relay is switched to an alarm condition.
The following table shows the effect of the Relay Action and Failsafe settings. See also
Sections 4.3.2 – 4.3.4 for further details.
Relay Action Failsafe Setting Effect
High No Alarm condition when process level rises above the High
Setpoint for at least the alarm delay period.
Alarm condition remains active until the process level drops
below the Low Setpoint.
No action is taken when the process level is between the
High and Low Setpoints.
In the alarm condition, the corresponding alarm LED is turned
ON, and the relay is energized.
High Yes Alarm condition set and reset as above.
In the alarm condition, the corresponding alarm LED is turned
ON, but the relay is de-energized.
Low No Alarm condition when process level drops below the Low
Setpoint for at least the alarm delay period.
Alarm condition remains active until the process level rises