A. 1.3 Figure 2: Relay Type ac Semi-schematic This semi-schematic is of the same circuit as Figure 1. ... Relay Type - Wiring Diagram This drawing shows the field wiring necessary as well as the wiring terminals for the actuating contacts. ... For both alert and return alert, the system will provide an audible signal as wellas flashing lights. ... The NC actuating contacts must be supplied with plus 12 volts and the NO contacts must be supplied with minus 12 ... of Q-3 turning it off and Q- 4 on.
|Title||:||Standards and practices for instrumentation|
|Author||:||Instrument Society of America|