Specifications

28
↑ Average or Voting Mode
Figure 4-20 Sensor Mode Selection
→ Configure Group 2 - repeat for up to three groups
When multiple sensors are being monitored as a Group, the DVP-120 output can be based on either sensor Voting (default) or the Average of all sensor readings in the Group.
When the configuration is Average, the gas concentrations from all sensors in the Group are averaged.
• Iftheaverageisgreaterthanorequaltotherisingtrippoint,thezoneoutputsareactivated.
• Iftheaverageislessthanorequaltothefallingtrippoint,thezoneoutput(s)arede-activated.
• Iftheaverageisbetweenthetwotrippoints,theoutputsremainintheirpreviousstate.
WhenthecongurationisVoting,thenumberofsensorsintheGroupindicatingavaluegreaterthanorequaltotherisingtrippointiscounted.
• IfthecountisgreaterthanorequaltotheQuorum(theminimumnumberofsensorvotesinaGroupneeded)thenthezoneoutput(s)areactivated.
• IfthecountofsensorsindicatinglessthanorequaltothefallingtrippointisgreaterthanorequaltotheQuorumthezoneoutput(s)arede-activated.
• Ifagrouphasanequalnumberofsensorswithgasreadingsgreaterthanorequaltherisingtrippointandsensorswithreadingslessthanorequaltothefallingtrippoint,
activating the output(s) is given priority.
It is up to the installer to ensure that the Quorum entry is appropriate for the configuration. Valid entries are from one to twelve, but a value greater than the number of sensors being
monitored by the group stops the group from controlling the outputs. The default Quorum value is 1; in this case, only 1 sensor vote is needed to control the output.
5. Configure Signals Submenu
4.14 See Section 3.3.8 Configure Signals Submenu for more detail
Press Menu to display Hardware Summary
↑ x5 Configure Signals
→ Alarm Signals
Figure 4-21 Alarm Signals
↑ Alarm Signal Buzzer (default 2 – Intermittent)
↑ Alarm Signal Horn (default 2 – Intermittent)
↑ Alarm Signal Strobe (default 1 – Continuous)
Figure 4-22 Buzzer Alarm Signal
→ Warning Signals
Figure 4-23 Horn Warning Signal
↑ Warn Signal Buzzer (default 5 – Off)
↑ Warn Signal Horn (default 5 – Off)
↑ Warn Signal Strobe (default 5 – Off)
→ Trouble Signals
Figure 4-24 Buzzer Trouble Signal
↑ Trouble Signal Buzzer (default 4 – Triple Tap)
↑ Trouble Signal Horn (default 5 – Off)
↑ Trouble Signal Strobe (default 5 – Off)