 Between
two signals A and B, connect the signal A to be multiplied with a factor
to our Ratio Transmitter (model: M2REB) to convert an output C. The Ratio
Transmitter can also add a bias (-100 to +100% of the input span) to the
input signal as well as a ratio (0.5-3.0).
Then connect the signal B as reference input and the signal C as measured
input with our Deviation Alarm (model AYDV). When the deviation (signal
C - signal B) exceeds a setpoint value, the Deviation Alarm provides an
alarm output. (Refer to the Figure.) The alarm setpoint adjustable range
is -50 to +50% of the span (4V) of the reference input (1- 5Vdc). For example,
if the setpoint is set to +5%, an alarm is output when the signal C is 5%
(0.2V) more than the signal B. The Deviation Alarm has two alarm setpoints
to output two independent alarms. |
I
have two signals. When one of them multiplied with a certain factor exceeds
another signal, I need an alarm.
