User manual

Digital Monitor AMC-1DBx Series User Manual
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Sensors can also be assigned to zones. Zones have up to four relays assigned to them;
three alarm thresholds and one fail. When sensors are assigned to a zone they carry in
their alarm thresholds as configured in their sensor properties. Additionally one analog
output is assigned to the zone representing the peak or average gas concentration for
the assigned sensors. This gas concentration is pre-scale based on gas type. Please
refer to APPENDIX A GAS TYPES FULL SCALE AND ALARM VALUES for specific
fixed pre-scale values.
5.3.1 Enable Audio Cadence
The AMC-1DBx Gas Monitor supports two modes for Audible Alarms; Pulse and
Continuous.
The AMC-1DBx audio alarm can pulses for various alarm conditions. When external
alarm device such as RAM3/RAM4 are connected, the pulse mode causes these
attached device(s) to fail (i.e. latching the audio silence). This Audio Cadence sub-menu
item allows the user to select the Pulsing or a Continuous alarm signal.
Information about the audio alarm operation can found in Table 5-1.
Table 5-1: Audio Alarm Operation
Status Output
Normal Off
Device Failure (Sensor, Relay or Analog Out) Slow pulsing or Continuous.
Alarm Faster pulsing or Continuous.
Notes:
1. The Dipswitch (see Table 4-1: System Configuration DIP Switch Functionality)
enables/disables the audio alarm.
The Audio Cadence submenu is accessed from the Audible Alarms submenu.
Values are changed by using the UP/DOWN, PREVIOUS and ENTER pushbuttons on
the front panel of the AMC-1DBx gas monitor as shown in Table 5-2.
Table 5-2: Enable Audio Cadence
Input (Pushbutton) Action
UP DOWN Toggles between the available options:
• Continuous
• Pulse
PREV
Move up one level in menu system to Set Options.
ENTER Saves the selection.
Advances to the next option Zero Buffering.