View Inputs/Outputs; Relays; Relay Configuration - Hach ORBISPHERE G1100 User Manual

Inputs/Outputs Menu

8.2 View inputs/outputs

8.3 Relays

There are three measurement alarm relays and one system alarm relay. These relays are
configurable as either standard or custom events through the instrument menu.
Notes regarding the relays:
An alarm relay can be activated or deactivated
•
When the alarm is OFF, it is activated,
•
When the alarm is ON, it is deactivated
•
All the relays are activated as soon as the instrument is ON (but alarms are OFF). When the
instrument is OFF, the relays are deactivated, thus in this state, all alarms are ON. The logic
"Relay deactivated = Alarm ON" has been chosen for this safety reason.
When the main board does not communicate with the measurement board for more than 30
seconds, the measurement board switches all the alarm relays and the analog output to the
alarm state.

8.3.1 Relay configuration

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This view option displays the state of the 3 alarm relays (on or
off), and the analog output current (or voltage, depending on
the instrument version) value for each.
The three relays can be triggered by several standard events,
or a combination of events (custom). The relays output can be
used to turn on a beacon, horn or PLC. Refer to
to electronic boards on page
Note: Relays can be set to Normally Open [NO] or Normally Closed
[NC] by changing the jumper positions on the measurement board .
Refer to Measurement alarm relays on page
Select a standard event in the rolling list
•
If "Custom event" has been selected, it has to be
•
configured by touching the configure button
Connections
33.
34.