H E A D E R
4
0178-1737-000 Rev. A
2/GENERAL INFORMATION
Figure 2
Six Gas Area Alarm Panel
Figure 3
Closed Loop Configuration
Note:
If break in line should occur
the path will be interrupted causing
an alarm condition.
Switch Gauge Operation (NORMAL): The gauge pointer
moves in response to change in gas line pressure. Under
normal pressure conditions, the pointer will not be in con-
tact with the gauge alarm contacts.
Switch Gauge Operation (ABNORMAL): As gas line
pressure goes to an abnormal (high or low) level, the
pointer will move accordingly. Once the pointer touches
one of the contacts, the normal (5V) signal will be inter-
rupted and an alarm condition will be sensed by the control
elements.
