Signal Conditioners and Isolation Amplifiers

Isolate, amplify, filter or convert: WAGO’s signal conditioners handle a large number of functions in industrial applications and provide secure and error-free signal transmission.

The range of signal conditioners provides the right solution for every application:

• With a power supply: signal conditioners (permanently configured), signal conditioners (configurable), universal signal conditioners, bipolar signal conditioners, repeater power supplies, signal splitters
• Without a power supply: passive isolators, loop-powered isolators

The Benefits for You:

• Galvanic isolation between input/output/power supply
• Zero and span adjustment to compensate for error or signal shifts
• Switchable filter function to prevent signal interference
• Reliable protection of the input circuit against overcurrent (857-409, 857-402, 2857-401)
• A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

WAGO’s frequency signal conditioners record 0.1 kHz to 120 kHz signals from NAMUR, NPN or PNP sensors and convert the frequency into an analog standard signal.

The Benefits for You:

• Signal acquisition from NAMUR, NPN or PNP sensors
• Frequency range: 0.1 … 120 kHz
• Fault signaling: Wire break/short-circuit detection for NAMUR proximity sensors
• Signaling measurement range underflow/overflow

With WAGO’s temperature signal conditioners, signals from Pt, TC, Ni, KTY and RTD sensors and resistors can be recorded and converted into an analog standard signal on the output side. Whether a resistive temperature device or a thermocouple is used depends on factors such as the maximum temperature range, the installation environment and the required measurement accuracy:

• Resistive temperature device (RTD): Temperature range up to 850 °C, high accuracy
• Thermocouple (TC): Temperature range up to 2320 °C, better response time

The Benefits for You:

• Signal acquisition from Pt, TC, Ni, KTY and RTD sensors and resistors up to 4.5 kΩ (e.g., Pt100 sensors)
• 2-, 3- and 4-wire connection technology
• Fault signaling: wire break/short-circuit detection of the sensor
• Signaling measurement range underflow/overflow

WAGO’s threshold value switches monitor various measurement signals such as temperature, current or voltage. If a value falls above or below a limiting value setting, emergency stops or alarms can be triggered, for example. In addition to threshold value switches for analog signals, WAGO also offers RTD threshold value switches for resistance temperature sensors and potentiometers, as well as TC threshold value switches for thermocouples, allowing both signal monitoring and measurement.

Your Benefits:

• Input/output response simulation (2857 Series)
• Relays as threshold value switches (e.g., activation/deactivation delay)
• A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

This potentiometer signal conditioner records resistance signals; e.g., from potentiometers, and converts them into a standard analog signal.

Your Benefits:

• Signal acquisition from potentiometers and resistors
• Automatic potentiometer identification
• Configurable input and output parameters
• A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

Besides current and voltage signal conditioners which record DC and AC currents and voltages, this impressive range also includes a power measurement module that can measure current and voltage in parallel, convert them to power and output them as an analog standard signal. Additionally, WAGO’s signal conditioner for Rogowski coils offers a solution for retrofitting existing systems. Thus it is not necessary to disconnect the live conductor. The new WAGO 3-Phase Power Measurement Module measures all relevant parameters in a three-phase supply network – voltage, current, power, harmonics, etc. – from within the control cabinet.

Your Benefits:

• Signal acquisition of DC and AC voltages up to 300 VAC/VDC using modules that are just 6 mm wide
• AC currents up to 4000 A via Rogowski coil
• Switchable filter function to prevent signal interference
• A digital signal output (DO) reacts to freely configurable measurement range limits (this allows use as a threshold value switch – with activation/deactivation delay).

The power measurement modules in a DIN-rail mounting enclosure offer the ideal solution for measuring currents and voltages in a three-phase supply network remotely from the control level. Measured variables such as active/apparent/reactive power, energy consumption, power factor, phase angle and frequency can be accessed via Modbus® interface. Two integrated RJ45 sockets streamline the interconnection of up to 32 devices.

The Benefits for You:

• Measurement via current transformers or Rogowski coils: Flexible selection of upcoming measurement tasks
• Slot for microSD cards: Fast and secure mobile measurement, including recording
• Compact device in DIN-rail-mount enclosure: Saves space in building technology
• Modbus® Interface (RS-485): Provision of the measured values via Modbus®
• Digital signal output as pulse output (pulses/kWh are configurable): Continuous energy consumption monitoring