Content: Introduction Technical Data Cable Break Detection Electrical Connection Settings PMX-24 Signal Conditioner Key Features: - Converts potentiometer signals into analog output signals (e.g. 0...10 V or 4...20 mA) - With cable break detection and alarm output ...2 - Input: potentiometer 1...20 kfi . 2 - Differential potentiometer supply . 4 - High interference resistance - Low residual ripple - DIN rail mounting

Signal conditioners are used for potentiometers to convert an input signal into a different proportional output signal. These are often standardised values such as 0...10 V or 4...20 mA, needed for ordinary connection to controls. A signal conditioning and an electrical isolation ensures an optimal signal performance. The PMX-24 offers various current and voltage outputs, e.g. 4...20 mA, 0...10 V, 0...5 V, ±5 V, ±10 V, which can be configured easily via DIP switch (switch on the board). The signal output is electrically isolated and characterised by extremely low residual noise, free of any spikes....

In case of a cable break between the sensor and transducer, there is no signal at the electronics input. Conventional devices would detect this as the cursor signal in accordance with the initial position of the potentiometer, where the cursor signal is 0 V. For an analog output of 4...20 mA this corresponds to 4 mA, for bipolar voltage outputs of ±10 V this corresponds to -10 V, ±5 V output thus -5 V, etc. A detected cable break activates the following functions: 1. A switch fully disconnects the outputs and no current or voltage signal is applied to the output. 2. A red ERROR LED on the front...

SETTINGS Setting the Offset (zero) and gain: Please note, when using long lines between the potentiometer and conditioner the zero point and gain may change. Install the potentiometer with the required cable length and then set the zero point and gain. We recommend the following procedure: 1. Move the potentiometer to the start of the measuring range. 2. Offset: Adjust the front Zero potentiometer to 4.000 mA (for 4...20 mA) or 0.000 V (for 0...10 V) output signal. 3. Move the potentiometer to the end of the measuring range. 4. Set gain: Adjust the Gain potentiometer to 20.000 mA or 10.000 V...