Wireless
compressor monitoring
Current, temperature and estimated runtime from air compressors and refrigeration compressors, collected by Sense-i nodes that clamp and strap on. Enough to see how the machine is being used and when it starts to struggle.
THE PROBLEM
Compressors are expensive to run and hard to see into
Compressed air is one of the largest electrical loads in many factories, and refrigeration compressors are the heart of every cold store. Yet many compressors have a local panel and nothing else. Nobody outside the compressor room knows how long the machine loaded, how long it ran unloaded, or that its discharge temperature has been rising since the last service.
For an air compressor, long unloaded running wastes energy and often points to leaks or a pressure setting that is too wide. For a refrigeration compressor, rising discharge temperature and longer run times often mean a dirty condenser or low refrigerant. Both can be caught early from current and temperature alone.
HOW WE SET IT UP
Electrical and thermal signals together
Current for load state
A clamp-on CT on the motor supply shows loaded, unloaded and stopped states. Over a week, the split between them tells you whether the compressor is sized and set correctly.
Temperature where it counts
A PT100 probe on the discharge line or the oil sump, plus room temperature in the compressor house. Ventilation problems show up here long before a high-temperature trip.
Runtime and cycles
RIOD Live estimates run hours and counts cycles from the current signal, which supports service intervals based on real use.
Add process data for diagnosis
Pressure, dew point and controller fault codes come from the compressor controller over Modbus, through our gateway. Combined with current and temperature, that gives the full picture for diagnosis.
FROM THE FIELD
Where run status has paid back
Taj Hotels: chillers and air conditioning
We monitored power and run status on chillers and AC units so the engineering team could see downtime as it happened and track how quickly maintenance responded, instead of learning about a failure from a guest.
Machinery energy metering
Energy measured per machine in a production environment, so consumption could be tied to equipment rather than spread across the site bill.
AT A GLANCE
Compressor monitoring
- Measured
- Motor current, discharge or room temperature, estimated runtime and cycles
- Hardware
- Sense-i current and temperature nodes, PT100 probe option
- Connectivity
- Wi-Fi 2.4 GHz, 4G LTE, BLE. LoRa or Zigbee on request
- Integration
- Controller data over Modbus through our RS485 gateway, on the same platform
- Where data goes
- RIOD Live or your server, with PDF and Excel export
- Engineering note
- Current and temperature show behaviour; fault diagnosis draws on pressure and controller data as well
FAQ
Questions buyers ask us
How do I monitor an air compressor remotely?
The simplest start is motor current, which shows loaded, unloaded and off states, and a temperature probe on the discharge. If the compressor controller has a Modbus port, pressure and fault codes can be read as well. All of it can report to one cloud dashboard.
Can current monitoring show compressed air leaks?
Yes, indirectly. If the compressor loads regularly during a shutdown, when no production is drawing air, the air is going somewhere. The current record makes that pattern visible over a weekend or a night shift.
What should be monitored on a refrigeration compressor?
Run time, cycle count, motor current and discharge temperature give a strong early warning. Suction and discharge pressures from the controller or added transducers complete the picture for a refrigeration engineer.
Do we have to replace the compressor controller?
The existing controller stays as it is. Sense-i nodes clamp and strap on from outside, and where the controller has Modbus, our gateway reads it as it is.
Want to know how your compressors really run?
Tell us the compressor types, ratings and controllers. We will propose the signals to read and how to bring them together.