ONYX-RUN kit — run status and power
The ONYX-RUN kit is the entry point to IoT monitoring by Onyx M3: a Rogowski coil per compressor (Accuenergy components) to measure current, an IoT server reading everything over Modbus, and online dashboards — local server or cloud (managed by Onyx M3), your choice. Power (kW · kWh) is added as an option.
Field challenge
Without measurement, compressed air is a black box: nobody knows when the compressors run, which ones work for nothing, or what the room costs in electricity. Every decision — sequencing, replacement, incentives — then rests on impressions.
Measurable benefits
From day one, every compressor shows its run status and its current — and, optionally, its real power in kW (and energy in kWh). Idle running, forgotten weekends and overconsumption become visible in the online charts. It is also the starting data of our assessment and the foundation of any optimization case.
Built to grow
The ONYX server reads Modbus: pressure transmitters, flow meters or a dew point sensor can be added when the need arises — without changing systems. See the ONYX-DIAG and ONYX-360 kits, or go through the configurator.
Specifications
| Measurements | Current (A) · run status · power (kW · kWh) optional |
|---|---|
| Included sensors | 1 Rogowski coil per compressor (Accuenergy components) · power optional (voltage reference) |
| IoT server | ONYX server — Modbus gateway + online charts |
| Communication | Modbus RTU (RS-485) · Modbus TCP (Ethernet) · wireless and LTE options |
| Power supply | 120 VAC or 24 VDC |
| Data hosting | Local server OR cloud (managed by Onyx M3, flat-rate, included) |
| Visualization | online dashboards |
Measurement devices
Compatibility
- Compressors of every brand (measurement happens at the electrical panel)
- Plant network (Ethernet) or dedicated RS-485 link — LTE option for remote sites
What's included
- Rogowski coil (current) per compressor (Accuenergy components)
- ONYX IoT server (preconfigured Modbus gateway + online charts)
- Wiring and connection accessories
- online dashboards configured by Onyx M3
Frequently asked questions
Does the data stay on our site?
Your choice. The ONYX server can stay fully local (closed network, no data leaves the plant) or in the cloud managed by Onyx M3 — cloud hosting is flat-rate, included in the agreement, with no per-use subscription.
Do the sensors require opening electrical circuits?
No. Current is measured with a Rogowski coil (a flexible current transformer) clipped around existing conductors, with no interruption. An electrician may still be required depending on your internal rules. Power (kW) is added as an option by referencing the voltage.
How is this different from the CALMS platform?
They complement each other. The ONYX kit is an open measurement solution (Modbus + online charts), local or cloud, with no subscription. CALMS adds a cloud platform specialized in compressed air: analysis, advanced alarms and automatic reports. We help you choose — or combine both.
Request a quote
Tell us about your application (flow, pressure, number of compressors): we confirm the configuration and the price. Billing by transfer or purchase order — no online payment.
Not sure this is the right equipment? Free consultation — we'll look at your system together.