QEED QA-VI Universal Current / Voltage Converter
Product Description
The QEED QA-VI is a universal DIN-rail current and voltage signal converter designed to convert AC or DC current and voltage signals into standardized analogue outputs for PLCs, controllers, recorders, monitoring systems and industrial automation equipment. The compact signal conditioning module accepts different field measurement signals and provides an isolated 4–20 mA or 0–10 V output, allowing sensors and electrical measurements to be integrated into control and monitoring systems.
The QA-VI is designed for applications where a raw electrical signal from a field device needs to be converted, scaled, isolated and made usable by a control system. It can accept AC or DC current, AC or DC voltage as an input and convert the measured signal into a standardized analogue signal such as 4–20 mA or 0–10 V.
The module provides galvanic isolation between the input, output and power supply, helping prevent ground loops, reduce the transmission of electrical disturbances and separate field-side measurement circuits from sensitive control-system electronics. This makes the QA-VI suitable for industrial environments where signal integrity and electrical isolation are important.
In addition to analogue signal conversion, the QA-VI includes RS-485 Modbus RTU communication, allowing the measured value to be accessed digitally by a PLC, SCADA system, energy management platform, BMS or other monitoring software. This means the same converter can provide both a conventional analogue output and a digital Modbus reading without requiring a separate measurement device.
The QA-VI also incorporates a configurable alarm relay, allowing an alarm output to be triggered when a measured current or voltage reaches a defined threshold. This can be used for local over-current, over-voltage, under-range or other process-limit monitoring depending on the application.
The converter operates from a 15–40 VDC or 20–28 VAC supply, with a slim 17.5 mm DIN-rail form factor designed for installation inside electrical control panels, automation cabinets, instrumentation panels and compact switchboards. Pluggable screw terminals make wiring and module replacement easier while reducing installation and maintenance time.
The QA-VI is particularly useful when integrating generators, motors, busbars, electrical sensors, process equipment, pumps, HVAC equipment, water treatment systems, energy meters and other field measurements into PLC, SCADA, BMS and energy-monitoring systems.
Rather than replacing an existing sensor or installing a dedicated digital measurement system, the QA-VI can be installed between the field signal and the control system to provide the required signal conversion, signal isolation, analogue output, Modbus connectivity and alarm functionality in a single compact DIN-rail module.
Key Features
QEED QA-VI universal signal converter
DIN-rail current converter
DIN-rail voltage converter
AC current input
DC current input
AC voltage input
DC voltage input
Universal current and voltage input
4–20 mA analogue output
0–10 V analogue output
Isolated analogue signal conversion
Galvanic isolation
Input/output/power isolation
RS-485 communication
Modbus RTU
Built-in alarm relay
Configurable alarm threshold
Signal scaling and conversion
15–40 VDC power supply
20–28 VAC power supply
Slim 17.5 mm DIN-rail housing
Pluggable screw terminals
Compact control-panel installation
Industrial signal conditioning
Analogue signal isolator and converter
Applications
The QEED QA-VI can be used for:
PLC signal conversion
PLC analogue input integration
SCADA monitoring
BMS integration
Energy monitoring
Electrical monitoring
Industrial automation
Factory automation
Process control
Machine monitoring
Generator monitoring
Motor current monitoring
Motor voltage monitoring
Busbar current measurement
Electrical panel monitoring
Power distribution monitoring
HVAC monitoring
Pump monitoring
Water treatment systems
Process skids
Building services
Industrial instrumentation
Remote electrical monitoring
Analogue signal conditioning
RS-485 Modbus monitoring
Typical Applications
Current Signal Conversion
Convert a field AC or DC current measurement into a standardized 4–20 mA or 0–10 V signal that can be read by a PLC or controller.
Voltage Signal Conversion
Scale and isolate an AC or DC voltage measurement before sending it to an automation or monitoring system.
Digital Modbus Monitoring
Use the QA-VI's RS-485 Modbus RTU interface to retrieve measurement data digitally while maintaining an analogue output for the local control system.
Generator Monitoring
Convert generator voltage or current measurements into standardized control-system signals while providing electrical isolation.
Motor Monitoring
Condition motor current or voltage measurements for PLC, SCADA or BMS monitoring and use the alarm relay for configurable operating limits.
Existing Analogue Loop Upgrade
Add digital Modbus monitoring to an existing analogue measurement loop without requiring a separate measurement instrument.
SEO Keywords
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Long-Tail Search Terms
universal AC DC current voltage converter
DIN rail AC current to 4-20mA converter
DIN rail voltage to 0-10V signal converter
isolated 4-20mA current signal converter
galvanically isolated current signal conditioner
AC current signal conditioner for PLC
DC current signal converter for PLC
voltage signal isolator for industrial automation
DIN rail 4-20mA signal isolator
DIN rail 0-10V signal isolator
current voltage converter with Modbus RTU
4-20mA converter with RS485 Modbus
signal converter with alarm relay
current converter with configurable alarm relay
universal signal conditioner for PLC and SCADA
industrial current and voltage signal converter
AC DC signal converter DIN rail
isolated analogue signal converter for BMS
Modbus RTU analogue signal converter
current monitoring converter for energy management
voltage monitoring converter for SCADA
DIN rail signal conditioning module
compact DIN rail current voltage isolator
analogue and digital signal converter for industrial automation
Meta Description
QEED QA-VI universal DIN-rail current and voltage converter with galvanic isolation, 4–20 mA/0–10 V outputs, Modbus RTU RS-485 and configurable alarm relay.
Frequently Asked Questions
What is the QEED QA-VI?
The QEED QA-VI is a universal DIN-rail current and voltage signal converter that converts AC or DC electrical signals into standardized 4–20 mA or 0–10 V analogue outputs.
What inputs does the QA-VI support?
The QA-VI supports AC or DC current and AC or DC voltage inputs, allowing one module to handle multiple common electrical measurement applications.
What outputs does the QA-VI provide?
It provides standardized 4–20 mA and 0–10 V analogue outputs as well as digital measurement access through RS-485 Modbus RTU.
Does the QA-VI provide galvanic isolation?
Yes. The QA-VI provides galvanic isolation between the input, output and power supply, helping reduce ground loops and electrical interference.
Does the QA-VI support Modbus?
Yes. It includes an RS-485 Modbus RTU interface for digital monitoring and integration with PLC, SCADA, BMS and energy-management systems.
Does the QA-VI have an alarm output?
Yes. A built-in configurable alarm relay can be used to trigger an alarm based on a configured measurement threshold.
How wide is the QA-VI?
The module uses a slim 17.5 mm DIN-rail housing, making it suitable for crowded control cabinets and instrumentation panels.
Where can the QA-VI be installed?
It is designed for DIN-rail installation in electrical control panels, automation cabinets, instrumentation systems, switchboards and industrial monitoring equipment.
Saturn Pyro
44 & 44A, Jalan Palma Rafis 1, Taman Dato Chellam, 81800 Ulu Tiram, Johor
Tel: 07 8660 510 Fax: 07 8660 511 Email: enquiry@saturnpyro.com
The QEED QA-VI is a universal DIN-rail current and voltage signal converter designed to convert AC or DC current and voltage signals into standardized analogue outputs for PLCs, controllers, recorders, monitoring systems and industrial automation equipment. The compact signal conditioning module accepts different field measurement signals and provides an isolated 4–20 mA or 0–10 V output, allowing sensors and electrical measurements to be integrated into control and monitoring systems.
The QA-VI is designed for applications where a raw electrical signal from a field device needs to be converted, scaled, isolated and made usable by a control system. It can accept AC or DC current, AC or DC voltage as an input and convert the measured signal into a standardized analogue signal such as 4–20 mA or 0–10 V.
The module provides galvanic isolation between the input, output and power supply, helping prevent ground loops, reduce the transmission of electrical disturbances and separate field-side measurement circuits from sensitive control-system electronics. This makes the QA-VI suitable for industrial environments where signal integrity and electrical isolation are important.
In addition to analogue signal conversion, the QA-VI includes RS-485 Modbus RTU communication, allowing the measured value to be accessed digitally by a PLC, SCADA system, energy management platform, BMS or other monitoring software. This means the same converter can provide both a conventional analogue output and a digital Modbus reading without requiring a separate measurement device.
The QA-VI also incorporates a configurable alarm relay, allowing an alarm output to be triggered when a measured current or voltage reaches a defined threshold. This can be used for local over-current, over-voltage, under-range or other process-limit monitoring depending on the application.
The converter operates from a 15–40 VDC or 20–28 VAC supply, with a slim 17.5 mm DIN-rail form factor designed for installation inside electrical control panels, automation cabinets, instrumentation panels and compact switchboards. Pluggable screw terminals make wiring and module replacement easier while reducing installation and maintenance time.
The QA-VI is particularly useful when integrating generators, motors, busbars, electrical sensors, process equipment, pumps, HVAC equipment, water treatment systems, energy meters and other field measurements into PLC, SCADA, BMS and energy-monitoring systems.
Rather than replacing an existing sensor or installing a dedicated digital measurement system, the QA-VI can be installed between the field signal and the control system to provide the required signal conversion, signal isolation, analogue output, Modbus connectivity and alarm functionality in a single compact DIN-rail module.
Key Features
QEED QA-VI universal signal converter
DIN-rail current converter
DIN-rail voltage converter
AC current input
DC current input
AC voltage input
DC voltage input
Universal current and voltage input
4–20 mA analogue output
0–10 V analogue output
Isolated analogue signal conversion
Galvanic isolation
Input/output/power isolation
RS-485 communication
Modbus RTU
Built-in alarm relay
Configurable alarm threshold
Signal scaling and conversion
15–40 VDC power supply
20–28 VAC power supply
Slim 17.5 mm DIN-rail housing
Pluggable screw terminals
Compact control-panel installation
Industrial signal conditioning
Analogue signal isolator and converter
Applications
The QEED QA-VI can be used for:
PLC signal conversion
PLC analogue input integration
SCADA monitoring
BMS integration
Energy monitoring
Electrical monitoring
Industrial automation
Factory automation
Process control
Machine monitoring
Generator monitoring
Motor current monitoring
Motor voltage monitoring
Busbar current measurement
Electrical panel monitoring
Power distribution monitoring
HVAC monitoring
Pump monitoring
Water treatment systems
Process skids
Building services
Industrial instrumentation
Remote electrical monitoring
Analogue signal conditioning
RS-485 Modbus monitoring
Typical Applications
Current Signal Conversion
Convert a field AC or DC current measurement into a standardized 4–20 mA or 0–10 V signal that can be read by a PLC or controller.
Voltage Signal Conversion
Scale and isolate an AC or DC voltage measurement before sending it to an automation or monitoring system.
Digital Modbus Monitoring
Use the QA-VI's RS-485 Modbus RTU interface to retrieve measurement data digitally while maintaining an analogue output for the local control system.
Generator Monitoring
Convert generator voltage or current measurements into standardized control-system signals while providing electrical isolation.
Motor Monitoring
Condition motor current or voltage measurements for PLC, SCADA or BMS monitoring and use the alarm relay for configurable operating limits.
Existing Analogue Loop Upgrade
Add digital Modbus monitoring to an existing analogue measurement loop without requiring a separate measurement instrument.
SEO Keywords
QEED QA-VI, QA-VI converter, QEED QA-VI signal converter, QA VI current voltage converter, universal current converter, universal voltage converter, DIN rail signal converter, DIN rail current converter, DIN rail voltage converter, AC current converter, DC current converter, AC voltage converter, DC voltage converter, current signal converter, voltage signal converter, 4-20mA converter, 0-10V converter, 4-20mA signal conditioner, 0-10V signal conditioner, analogue signal converter, analogue signal isolator, galvanic signal isolator, galvanically isolated signal converter, DIN rail signal isolator, industrial signal conditioner, current signal isolator, voltage signal isolator, Modbus signal converter, Modbus RTU signal conditioner, RS485 signal converter, RS485 Modbus converter, Modbus analogue converter, analogue to Modbus converter, current to 4-20mA converter, voltage to 0-10V converter, PLC signal converter, PLC analogue input converter, SCADA signal converter, industrial DIN rail converter.
Long-Tail Search Terms
universal AC DC current voltage converter
DIN rail AC current to 4-20mA converter
DIN rail voltage to 0-10V signal converter
isolated 4-20mA current signal converter
galvanically isolated current signal conditioner
AC current signal conditioner for PLC
DC current signal converter for PLC
voltage signal isolator for industrial automation
DIN rail 4-20mA signal isolator
DIN rail 0-10V signal isolator
current voltage converter with Modbus RTU
4-20mA converter with RS485 Modbus
signal converter with alarm relay
current converter with configurable alarm relay
universal signal conditioner for PLC and SCADA
industrial current and voltage signal converter
AC DC signal converter DIN rail
isolated analogue signal converter for BMS
Modbus RTU analogue signal converter
current monitoring converter for energy management
voltage monitoring converter for SCADA
DIN rail signal conditioning module
compact DIN rail current voltage isolator
analogue and digital signal converter for industrial automation
Meta Description
QEED QA-VI universal DIN-rail current and voltage converter with galvanic isolation, 4–20 mA/0–10 V outputs, Modbus RTU RS-485 and configurable alarm relay.
Frequently Asked Questions
What is the QEED QA-VI?
The QEED QA-VI is a universal DIN-rail current and voltage signal converter that converts AC or DC electrical signals into standardized 4–20 mA or 0–10 V analogue outputs.
What inputs does the QA-VI support?
The QA-VI supports AC or DC current and AC or DC voltage inputs, allowing one module to handle multiple common electrical measurement applications.
What outputs does the QA-VI provide?
It provides standardized 4–20 mA and 0–10 V analogue outputs as well as digital measurement access through RS-485 Modbus RTU.
Does the QA-VI provide galvanic isolation?
Yes. The QA-VI provides galvanic isolation between the input, output and power supply, helping reduce ground loops and electrical interference.
Does the QA-VI support Modbus?
Yes. It includes an RS-485 Modbus RTU interface for digital monitoring and integration with PLC, SCADA, BMS and energy-management systems.
Does the QA-VI have an alarm output?
Yes. A built-in configurable alarm relay can be used to trigger an alarm based on a configured measurement threshold.
How wide is the QA-VI?
The module uses a slim 17.5 mm DIN-rail housing, making it suitable for crowded control cabinets and instrumentation panels.
Where can the QA-VI be installed?
It is designed for DIN-rail installation in electrical control panels, automation cabinets, instrumentation systems, switchboards and industrial monitoring equipment.
Saturn Pyro
44 & 44A, Jalan Palma Rafis 1, Taman Dato Chellam, 81800 Ulu Tiram, Johor
Tel: 07 8660 510 Fax: 07 8660 511 Email: enquiry@saturnpyro.com
Aug 17,2026