True RMS Convertor | IRFrms
Converting ac-dc input to dc or frequency output for automation and controlIRFrms transducers convert AC to dc or AC+DC to dc and DC to Frequency. The IRFrms can be used with voltage output current probes, ensuring they provide a precise voltage output proportional to the Arms. Voltage to frequency conversion is possible
Description
One of our DC Transducers, the IRF-rms, is an instantaneous to true rms converter, matching the performance of high-end true rms voltmeters Its purpose is to convert ac, ac+dc signals to an isolated dc signal representing the rms. Its output signal can be scaled to meet most requirements, voltage or 4-20mA current loops, isolated or non isolated.
The IRF-rms is used typically in applications with voltage output current probes, current shunts and current transformers - providing an isolated signal that can be connected to a computer or data logger. The IRF-rms can be configured to operate with most current probes, current sensors and dataloggers. High voltage options up to 1000V are possible using model VTHR.
One key feature of the IRF-rms is that it allows current probes and CTs to have both rms and instantaneous outputs, allowing the user diagnostic possibilities as well as metering.
The IRF-rms can be powered from 5Vdc-125Vdc and AC 90-240Vrms
- Computes AC rms or AC+DC rms
- AC or DC coupled version options
- Generates stable DC output
- Accurate true RMS measurement
- Fast dynamic response with excellent accuracy and linearity
- Voltage to Frequency conversion option available
- Isolated measurement output option
- Fused Power input protection
- Terminal block or BNC input
- Safety EN61010: 2001
Specifications:
- Bandwidth: DC-50kHz non isolated
- Accuracy: 1% from 5% to 120% of input range
- Operating range: -20°C to +60°C
- Input impedance: 50ohm, 100kohm or 1Mohm
- Output impedance: 100ohm (50 ohms optional)
- Input ranges: 2mV to 240V input (user specified input range)
- Wide range of non isolated dc outputs: 0-100mV, 0-1V, 0-5V, 0-10V, 0-20mA, 4-20mA and 4-12-20mA
- Instrument power supply: 5, 12, 24, 48, 110Vdc, 110Vac or 230Vac power
- Isolated Input to output: 1000Vpk - Iso option
- Mounting Suppurt: Supplied with DIN rail
Others:
- Fully isolated measurement option available
- Isolated power supply
- Small DIN rail (or panel mount) enclosure: UL94V-0 rated
Applications:
- Suitable for BMS, PLC, SCADA and data acquisition systems
- Industrial Automation and control systems
- Ease of installation and wide-bandwidth allows
- Used for High‑Current Busbar and Feeder Monitoring
- Easy to embed into custom equipment, switchgear, and monitoring panels for monitoring
- Used for R&D Test lab and product testing
- Electrical fault detect/protection
- Motor Drives and VFDs
- Suitable for renewable energy systems: inverters, Power Converters, UPS Systems
| Ordering Code Info | ||||||||
|---|---|---|---|---|---|---|---|---|
| Description |
Model | Input | AC/DC Input Coupling |
Output | Power Supply | |||
| Input = 2Vrms, Output = 0-10Vdc, ac+dc coupled input, 24Vdc power | IRFrms/ | 2V / | ac+dc / | 10V / | 24Vdc | |||
| Input = 110Vrms, Isolated Output = 0-10Vdc, ac coupled input, 24Vdc power | IRFrms-iso/ | 110V/ | ac / | 5V / | 24Vdc | |||
NOTE:
- While placing an order clarify input to a non-isolated/isolated output and AC/DC coupling input as per requirement.
- Power supply (Instrument powered up) customizable between 9 to 36VDC.
- Includes Certificate of Conformance and Calibration
- CE marked including EMC and safety using UL/CSA materials throughout
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