PR 5115A Signal Calculator

The PR 5115A Signal Calculator is a versatile, industrial-grade signal processing module that enhances automation and measurement systems by combining precision signal conditioning with programmable arithmetic functions. The 5115A multifunctional signal calculator, from PR electronics, supports redundant measurement of two input signals, allowing automatic switch-over if a primary sensor fails. Thus, the PR 5115A is ideal for critical temperature or process monitoring applications.

Featuring universal input compatibility for RTD, thermocouple (TC), ohm, mV, mA, and voltage signals, the PR 5115A enables wide-ranging deployment across industrial environments. Its programmable arithmetic capabilities, for example, addition, subtraction, multiplication, and division, allow complex operations such as differential and average signal calculations, making it perfect for advanced control strategies.

• Redundancy measurement of temperature by means of two sensors, where the secondary sensor takes over the measurement when a sensor error occurs on the primary sensor.
• Duplication of the input signal, for example, from a temperature sensor or an analog process signal to two separate analog outputs.
• Signal calculator with four arithmetical operations: addition, subtraction, multiplication, as well as division. 
• Example: Differential measurement: (Input 1 * K1) - (Input 2 * K2) + K4.
• Example: Average measurement: (Input 1 * 0.5) + (Input 2 * 0.5) + K4.
• Example: Different functions on the outputs: Output 1 = input 1 - input 2, and Output 2 = input 1 + input 2.
• In addition, the 5115A acts as a power supply for 2-wire transmitters.

PR 5115A Signal Calculator from PR electronics

With great durability, this signal calculator features five-port galvanic isolation (3.75 kVAC) to protect equipment from electrical noise and interference, thus ensuring stable and accurate output. Configuration is fast and intuitive using PReset software and PR 5909 Loop Link communications. A bright green LED clearly indicates normal operation, sensor error, or functional fault status.

• Within a few seconds, users can program the PR 5115A to a specific application using the configuration program PReset.
• A green front LED indicates normal operation, sensor error on each sensor, as well as functional error.
• Continuous check of vital stored data for safety reasons.
• 5-port 3.75 kVAC galvanic isolation.

Easy Mounting, Installation, and Programming

Compact, DIN-rail mountable construction allows installation of up to 42 units per meter, thus optimizing cabinet space in high-density installations. With universal AC/DC power and advanced diagnostics, the PR 5115A provides reliable, flexible signal math and conditioning for demanding industrial automation, monitoring, and control applications.

• Can mount vertically or horizontally on a DIN rail.
• As the devices can mount without any distance between neighboring units, up to 42 devices can mount per meter.
• The PR 5115A features approval for marine applications.