The QAU775 is a single input four relay output, and features:

• Signal inputs including AC & DC current/voltage, pulse, potentiometer, temperature, chemical sensors and strain-gauge.
• Option for special functions: Min/Max selector or Adder/Subtractor of two 4-20mA signals.
• Contacts rated at 10A/250Vac resistive.
• Option for open collector outputs.
• Front setpoint and deadband adjustments.
• Sensor excitation.
• Retransmission available as common process signals.
• Window alarm option.
• Reverse action by internal link headers.
• Trip status is indicated by LED.
• Wide swing AC/DC power supplies.

Common applications include:

• Multiple trippoint process alarm.
• Process heating alarm.