Which rooms are actually occupied?
Compare the room schedule with live or recorded occupancy information.
Energy Monitoring & Optimisation
See which rooms and systems are using energy - then act on the waste.
Measure selected lighting and HVAC energy, compare it with occupancy, schedules and device status, and identify the rooms that are running when they do not need to be.
Find Energy Waste
Empty rooms can still consume energy because the system follows a timetable.
Meeting rooms, classrooms, offices and entire floors may still be lit, heated or cooled when nobody is there. A utility bill shows the total. It does not show which room, which system or which hours created it.
Where is energy being used after hours?
Review lighting and selected HVAC energy by building, floor, zone or circuit.
Did the change reduce consumption?
Compare the readings before and after a schedule, control or maintenance change.
Room Data in Context
Energy meter shows consumption. Room data shows what was happening at the time.
Put supported energy readings beside occupancy, indoor conditions and equipment status so the reason for unusual demand is easier to investigate.
Select the diagram to view it in full size.
Occupancy
Occupied, vacant or people count
Indoor conditions
Temperature, humidity and CO₂
Lighting
Energy, ON/OFF and dimming status
HVAC
Selected energy and operating status
Devices
Online, warning, alarm or fault
Schedule
Working hours, evenings and weekends
Record the selected electrical load
Energy meter collects the energy data.
Bring room and device data together
Use the project-defined Modbus, BACnet or supervisory route.
Locate the room and hours that need attention
Compare energy with occupancy, schedules and operating status.
Review the result after a change
Confirm whether consumption or running hours were reduced.
Available points depend on the selected devices, meter arrangement, interfaces and agreed project point list.
Building
Floor
Room
Device
Monitoring & Fault Management
Know which zone or device needs attention before the engineer arrives.
Combine supported device status, alarms, setpoints and operating data for first-line monitoring, diagnostics and basic O&M supervision.
Operating normally
No immediate action shown
Alarm or warning
Review the affected room or device
Device offline
Check communication or power
Maintenance required
Use the reported location to plan the visit
Scheduling & Building Automation
Stop weekday operation from continuing into evenings, weekends and holidays.
At supervisory level, agreed schedules can coordinate connected zones. Operator overrides, IAQ requirements and occupancy can then be handled within the project-defined control hierarchy.
Run each connected zone to its agreed occupied hours.
Reduce unnecessary operation when rooms are vacant.
Use a separate timetable instead of repeating the weekday pattern.
Allow authorised staff to respond to events, maintenance or unusual use.
Where to Start
Start with spaces where occupancy and operating hours change.
These are the areas where fixed schedules are most likely to differ from real room use.
Meeting rooms & offices
HVAC or lighting continues after the room becomes vacant.
After-hours floors
Weekday operation continues into evenings or weekends.
Schools & education
Fixed timetables do not reflect changing classroom use.
Retail & hospitality
Customer and back-of-house areas have different operating hours.
Energy Metering Products
Measure the selected lighting and HVAC electrical circuits.
HMT01 records electricity use. HMTAC01 measures current on an existing cable without disconnecting the circuit.
HMT01
Three-Phase Energy Meter | Direct & CT-Operated Input | Modbus RTU
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HMTAC01
Split-Core Current Transformer | High-Current Conversion | Energy Metering
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