Action Instruments - Understanding Signal Conditioning and Isolating

Our Signal Conditioners have provided the process industry with the highest quality and most reliable solutions for signal conditioning, conversion and isolation applications for over 35 years.

Easy Solutions to Tough Problems

Every Action product is designed for easy installation, operation and maintenance. Whether you are amplifying or splitting signals, conditioning sensor outputs, isolating grounding problems, or adding more drive to current loops, Action’s complete product selection provides simple, convenient solutions to any analog signal conditioning need.

High Performance and Proven Reliability

Reliable signal processing under harsh conditions. That’s what Action’s products deliver. Nearly three decades of proven success can assure you of our adherence to the highest quality standards and the best in manufacturing techniques.

Real World Ruggedness

Action products are in tune with the industrial environment - the real world of hard-hats, forklifts, and EMI/RFI - they are ruggedized to survive the extremes of vibration, shock, temperature and humidity that are common to the manufacturing arena.

Commitment to Your Success

We know how tough it is on the plant floor and we realize that every application has different requirements. That’s why Action’s solutions are tailored to your problems.

Best Engineering Support in the Industry

Experienced, knowledgeable and friendly engineers are available throughout the world to answer your questions.

What Do Action Products Do? 

Isolation

A ground loop can occur if more than one ground connection is made to a single control signal. Because grounds are seldom at the same potential, an unwanted current will be generated and interfere with the control signal. Signal isolators break the ground loop current path and maintain the integrity of the measurement.

Signal Conversion

Industrial applications use a wide array of sensors to measure temperature, flow, length, speed, frequency, etc. These signals may then need to be converted into a form usable by the instrumentation to which they are connected. Any sensor signal, thermocouple, RTD, DC voltage, DC current, AC voltage, frequency, resistance, etc.) can be converted to any standard process signal.

Noise Filtering

Isolators incorporate low pass filters that eliminate high frequency EMI/RFI and unwanted signals from power lines, generators and motors.

Linearization

Many sensors output a signal that is not linearly related to the engineering value being measured. For example, a thermocouple used to measure temperature has a nonlinear millivolt output. A thermocouple input signal isolator translates this to a standard, robust linear signal such as 4 to 20 mA.

Limit Alarms

Limit alarm units take in a process signal and compare it to one or more setpoints. They then provide an output signal, usually a relay contact, when the signal crosses the setpoint.

Math

Isolators that can perform addition, subtraction, multiplication, division, square root, and averaging.