Levelcom 100 - Relay Outputs

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Page 54

Programming Horn Output

1. Enter Program Mode by pressing the MENU key.

2. At SYSTEM press the UP or DOWN keys to scroll to OUTPUTS.

3. Press ENTER. The unit will display LIGHTS.

4. Press the DOWN key. The unit will display HORN.

5. Press ENTER. The unit will display HI HI.

6. Select those alarms you wish to activate the horn by pressing the MENU key. An asterisk

(*) will appear to the right of the display indicating the alarm has been selected.

7. Press ENTER to save the selected alarms. SAVING will appear briefly on the display and

the display will return to HORN indicating the selections have been recorded.

8. Press ESCAPE to return to normal operation.

Relay Outputs

The LevelCom 100 has two optional “Form C” relay outputs. These relay outputs allow the

user to configure the LevelCom 100 to activate external operations, such as, alarms, motor

controls, etc. If you have ordered relay outputs then the LevelCom 100 will display RELAY 1

and RELAY 2 under the Outputs section of the program (Please refer to the Configuration

Flow Chart).

The relays can be programmed to be either alarm or control outputs. If relays are configured

as alarm outputs, they will function similarly to the light or horn outputs. The relays differ

from the lights and the horn in that they do not normally respond to the ACK button. They

normally activate when the alarm condition occurs, and clear at the assigned hysteresis level.

Relays cannot be configured to latch. As alarm outputs the relays are intended for

interfacing the LevelCom 100 to existing alarm systems.

It is possible to configure an alarm relay to be locally acknowledged. In this case the relay

will respond to the ACK button. This setup can be used to build a local alarm system for a

group of LevelCom 100s. The relay outputs from each LevelCom 100 can be paralleled to

run an alarm horn. To silence the horn, the ACK button must be pressed on the LevelCom

100 which is generating the alarm.

When a relay is configured as a System Failure relay, it will respond only to failure

conditions, such as Sense Line Plugged, Sense Line Leak, and so on.