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Find out moreRi f400 easywire multifunction meter
£120.00
£144.00 inc. VAT
Rayleigh Instruments RI-F400 is a DIN 96 panel-mounted multifunction energy meter from the easywire range, designed to provide fast and efficient electrical energy monitoring in industrial and commercial applications. The easywire system can reduce installation time by up to 90% compared with conventional meter and current transformer installations.
RI-F400 measures energy consumption and a range of electrical parameters. Its high-efficiency white backlit LCD provides clear visibility of measured values in all lighting conditions, while the front-mounted quick-select push-buttons allow easy access to the required display information.
The meter is housed in a compact DIN 96 enclosure designed for straightforward panel mounting, making it a practical solution for electrical monitoring and energy management applications.
| Display Type | High definition white backlit LCD |
|---|---|
| Digit height | 11.2mm (displayed parameter) 6.35mm (lowest 8 digits) |
| Page scrolling | Manual by front key / or auto scroll mode |
| Displayed parameters and accuracies | Voltage 0.5% of full scale Current 0.5% of full scale Frequency 0.1% of full scale (L - N >20V) Power factor 1% of unity Active power 1% Reactive power 1% Apparent power 1% Active Energy Class 1 (IEC/EN62053-21) Reactive Energy Class 2 (IEC/EN62053-23) Total Harmonic Distortion (THD) 3% |
| Energy maximum display | 99999999 |
| Resolution | 0.01K, 0.1K, 1K, 0.01M, 0.1M, 1M (depending on CT ratio & VT ratio) |
| Adjustable parameters | CT Primary current VT primary voltage VT secondary voltage Communication address Communication speed (Baud) Communication Parity Communication number of stop bits Back-light time-out period Demand period (for integration) Pulse output (kWh) Pulse duration Reset to Factory Default Reset Energy and Maximum Demand Reset Active Energy Reset Reactive Energy Reset Apparent Energy Reset Maximum Current Reset Maximum Active Power Reset Minimum Active Power Reset Maximum Reactive Power Reset Minimum Reactive Power Reset Maximum Apparent Power |
|---|---|
| Programming access | Password protected (user selectable) |
| Memory retention | Non volatile memory |
| Connection | Single phase (selectable L1, L2 or L3 CT connection), Three phase four wire |
|---|---|
| Input voltage range | 100…240V (L - N), 173…415V (L - L) |
| Voltage Rated Burden | <6VA (L1 - supply), <0.2VA (L2 and L3) |
| Nominal current input | easywire® input - 330mV |
| Max current (Imax) | easywire® input - 396mV (Nominal x 1.2) |
| Current Rated Burden | N/A (easywire® input) |
| Starting current | 10mA (3.3mV) |
| Short time over-current | 30 x Imax to IEC/EN62053-21 + 23 |
| Impulse voltage withstand | 6kV 1.2/50µS 0.5J |
| AC voltage withstand | 4kV 50Hz for 1 min |
| CT primary current | 1A…10000A |
| VT primary voltage | 100…500KV |
| Frequency | 45…65Hz |
| Voltage range | Self-supplied from measuring input (L1 - N) |
|---|---|
| Operating frequency | See input section |
| Power consumption | See input section |
| Energy pulses | |
| Number of pulse outputs | 1 |
|---|---|
| Pulse output function | kWh |
| Pulse output type | Semiconductor (does not support volt-free operation) |
| Pulse output Max current | 100mA |
| Pulse output voltage range | 5…27Vdc |
| Pulse duration | 100ms…2s |
| Pulse resolution | 0.01K, 0.1K, 1K, 0.01M, 0.1M, 1M (depending on CT ratio & VT ratio) |
| Communication | |
| Communication type | RS485 |
| Communication protocol | Modbus |
| Address | 1…255 |
| Number of bits | 8bits |
| Parity | None, odd, even |
| Baud rate | 300, 600, 1200, 2400, 4800, 9600, 19200 |
| Required response time to request | ≤100ms |
| Number of meters connected on the bus | 32 (up to 255 with RS485 repeater) |
| Max distance from Master device | 500M |
| Installation category | III |
|---|---|
| Pollution degree | 2 |
| Insulation voltage rating | 300V (L - N) |
| Reference temperature | 23°C ±2°C |
|---|---|
| Specified temperature operating range | –10°C…+55°C |
| Storage temperature | –20°C…+70°C |
| Relative humidity | 0…85%, non-condensing |
| Housing | |
| Housing | DIN96 |
|---|---|
| Mounting | Panel mounted (Max. panel thickness 6mm) |
| Tamper sealing | Meter housing (by means of a tamper evident seal) |
| Housing material | Self-extinguishing polycarbonate (UL94 V-0) |
| Protection degree (IEC/EN60529) | IP20 (terminals), IP54 (front of housing) |
| Weight | <240g |
| Termination | |
| Current input terminal type | RJ45 - easywire® input |
| Max. wire size | N/A (easywire® input) |
| Voltage input terminal type | Pluggable terminal block - Rising clamp |
| Max. wire size | 2.5mm² |
| Voltage output terminal type | Pluggable terminal block - Rising clamp |
| Max. wire size | 2.5mm² |
| Communication output (RS485 and Pulse) | Pluggable terminal block - Rising clamp |
| Max. wire size | 1.5mm² |
| Electromagnetic compatibility | IEC/EN61326-1, IEC/EN55011 Class A, IEC/EN61000-4-2, -3, -4, -5, -6, -8, -11 |
|---|---|
| Accuracy and functionality | IEC/EN62053-21, IEC/EN62053-23 |
| Safety | IEC/EN61010, IEC/EN62053-31 |
Our Knowledge Base section provides in-depth guides on metering related topics, and can aid you in the process of buying the right product.
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