Macurco DVP-120C Manual
REV – 1.0
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P a g e
o
Off –There are no silenced alarms or warnings
o
Red (flashing) –There are alarms, warnings and/or troubles that have been silenced (gas levels may
or may not remain or continue to be at an alarm or warning levels)
•
RELAY 1
o
Off – Relay 1 is not on
o
Green (steady) – Relay 1 is on
•
RELAY 2
o
Off – Relay 2 is not on
o
Green (steady) – Relay 2 is on
•
RELAY 3
o
Off – Relay 3 is not on
o
Green (steady) – Relay 3 is on
The overall system status is visible at a distance via the status lights as described above. More detailed system
information is displayed on the LCD, which can show the status of each relay and sensor. A typical status display is
shown in Figure 4-4.
4.3
User Interface
The LCD display is used to show detailed information about the status of the control system and the configuration
parameters to the user. The keypad is used to select the information displayed and to enter the configuration
parameters, which are stored in the DVP-120C memory. The keypad consists of ten-digit keys, four direction keys,
plus a MENU key that is used to access the configuration menu and a HUSH key that will silence the audible alarm
indicators. In normal mode, holding the zero key for three (3) seconds can be used to lock the keypad against
accidental (or unauthorized) use. See Section 4.5 for details.
Figure 4-3 Keypad layout
4.3.1
Cursor Keys
In normal mode, (no warnings or alarms indicated), the up and down cursor keys will scroll the display to any
configured sensors’ status. In normal mode, the left and right cursor keys will scroll through the status of each of the
relays. When the left (or right) key is used to scroll to another relay, the display will remove the underlining under
