| AUX | Selfsupplied |
|---|---|
| OUTPUT | 0...5 mA |
| FORMAT | 2 DIN module |
| INPUT | 100 V |
| TYPE | Selfsupplied alternating voltage transducer |
 Datasheet
|
| AUX | 115 Vca |
|---|---|
| USCITA | 0...5 mA/0...10 mA/0...20mA/4...20 mA/0...5 V/0...10 V/2...10 V (selezionabili) |
| FORMATO | 2 moduli DIN |
| INGRESSO | 100 V |
| TIPOLOGIA | Trasduttore di tensione alternata con alimentazione ausiliaria |
|
Datasheet
|
| AUX | 115 Vca |
|---|---|
| USCITA | 0...5 mA/0...10 mA/0...20mA/4...20 mA/0...5 V/0...10 V/2...10 V (selezionabili) tempo di risposta <=100 ms |
| FORMATO | 2 moduli DIN |
| INGRESSO | 100 V |
| TIPOLOGIA | Trasduttore di tensione alternata vero valore efficace |
|
Datasheet
|
Programmable transducer for apparet-reactive-active power or power factor or phase angle or average power or frequency
| Datasheet |
| User manual |
| AUX | 80...265 Vac/110...300 Vdc |
|---|---|
| FORMAT | wall mounting |
| CURRENT | 1 A (direct or from CT with programmable ratio) |
| VOLTAGE | 80...690 V phase-phase (direct or from VT with programmable ratio) |
| TYPE | Trasducer for a.c. networks with 4 analog outputs programmable through IDM software |
| MAIN | single or three-phase 3/4 wire balanced or unbalanced load |
| MEASUREMENT FIELD | programmable |
| Datasheet |
| User manual |
AC Voltage Measuring Transducers
An AC voltage measuring transducer measures sinusoidal AC voltage, computes its RMS value and converts it into a standardized DC output signal (e.g. 4 … 20 mA or 0 … 10 V). This allows AC voltages — for instance from mains or voltage transformers — to be safely and reliably converted into analog signals that can be processed by PLCs, control systems or monitoring equipment. Galvanic isolation between input and output ensures that potential differences, interference or ground loops are avoided.
These transducers are often implemented as compact DIN-rail modules simplifying installation in control cabinets. They are used for voltage monitoring, power network measurement and integration of AC voltage data into process or building automation. Modern devices feature flexible input ranges, stable RMS detection, short-circuit and no-load safe outputs, high accuracy and EMC-robustness.
Questions & Answers on AC Voltage Measuring Transducers
What is an AC voltage measuring transducer?
An AC voltage measuring transducer measures AC voltage, calculates its RMS value and outputs a proportional standardized analog signal.
When do you use an AC voltage transducer?
Whenever an AC voltage (e.g. mains voltage or a transformer output) needs to be monitored or converted into a standard analog signal for a PLC, controller or monitoring system.
What input voltage ranges are typical?
Depending on the model, nominal input ranges from a few tens of volts up to several hundred volts AC — e.g. up to 400 V or 500 V AC; for higher voltages, an external voltage transformer may be required.
What output signals are common?
Common outputs are 4 … 20 mA or 0 … 10 V; many devices allow switching between current and voltage output formats.
Is galvanic isolation standard?
Yes — input, output and supply are galvanically isolated to avoid interference, ground-loop currents or potential differences, ensuring safe signal transmission.
Do these transducers use true RMS measurement?
High-quality AC voltage transducers provide true RMS output, ensuring correct voltage representation even with non-ideal or distorted waveforms.
Is the output robust against short-circuit or no-load conditions?
Yes — outputs are typically designed to be short-circuit- and no-load-safe for reliable operation under varying load conditions.
How are they mounted and wired?
The device is mounted on a DIN rail. The AC input voltage is connected to the input terminals; the standardized output signal is taken from the output side and forwarded to control or monitoring systems.
Can such devices offer multiple output formats?
Yes — many units allow selection between current or voltage output; some also provide dual outputs simultaneously.
What applications suit AC voltage measuring transducers?
Voltage monitoring, energy or power monitoring, network supervision, integration of AC voltage measurements into automation or building management systems, facility monitoring and control systems.
How do frequency or waveform distortions affect the measurement?
As long as the AC voltage is within the specified frequency range and shape is not heavily distorted, RMS transducers deliver correct effective values; for strongly distorted waveforms, ensure a device with true RMS processing is used.
When is an external voltage transformer required?
If the measured voltage exceeds the device’s input range or for galvanic isolation and safety reasons — then a suitable external transformer must be used in front of the transducer.