AEM 30-3020M Water Methanol Failsafe Device - Manual (Page 14)

Page 14
NC/NO Relay
The following are examples of how a NC/NO relay (Bosch PN 0-332-019-203 or similar) can be configured for use with
the Water/Methanol Failsafe.
Signal Interrupt
− The high side (12 volt) output from the Water/Methanol Failsafe can be used to turn on a NC (normally
closed) relay and interrupt the output signal from a boost controller to its boost control solenoid – see Figure 1.
Conversely, the low side (ground) output can also be used to trigger the relay
− see Figure 2.
Auxiliary Device − The high side (12 volt) output from the Water/Methanol Failsafe can be used to turn on a NO (normally
open) relay and activate or deactivate an auxiliary device that can be used to reduce timing or boost or control some other
function when the current requirement is greater than 1.5 amps – see Figure 3. Conversely, the low side (ground) output
can also be use to trigger the relay
− see Figure 4.
Figure 4
Figure 2 Figure 1
Figure 3