Absolute Differential Alarm - ADA174

Absolute Differential Alarm - ADA174

The ADA174 determines the difference in magnitude of two inputs. The alarm relay will operate based on the difference in the two signals.

The ADA174 will accept all common process inputs plus a large range of sensors and ac measurements using input-conditioning cards.

The RMS responding current measurement when used with HALL CT input provides total isolation and true waveform transfer.

Each input can be configured to measure different process variables that must be kept within a specific range of each other.

The trip-point and dead-band are adjusted using front mounted 15-turn trim potentiometers.

Inputs

ac Current

ac Voltage

dc Current/Voltage

Potentiometer

Resistance

RTD

Signal Powered

Speed/Frequency

Temperature

Thermocouple

Function

Alarm

Output

Relay