Occasionally mains AC power is not available at the site where the AQM 65 is installed and an alternative power solution is required. There are two variables which determine the power requirements in Watts (W) for an AQM 65.
- The number of modules. More modules demand more power. However, the power demand of all the modules combined is small compared to the overall power demand of the AQM 65.
- The outside temperature (oC). The external temperature places power demands on the thermal management system (TMS), the heaters and compressor used to stabilize the internal temperature of the AQM 65. The power demand of the TMS system is higher than all of the modules combined.
Average power: P average [W]. Use this to calculate long-term power consumption.
Maximum power: P maximum [W]. Use this to calculate the maximum power required. This power demand occurs for short periods of time, but can occur regularly.
Cooling requires more power than heating, therefore the power demands can be greater in hotter climates than in cooler climates.
The modules demand power but also generate heat, so (counter-intuitively) AQMs with more modules may not significantly increase the overall power demand.
Use the following table to as a general guide to power demand for AQMs with different module configurations under different external conditions.
-20 – OoC  | O – 25oC  | 25 – 5OoC  | |
|---|---|---|---|
| 8 – 10 modules | Power average: 60 W Power maximum: 110 W | Power average: 85 W Power maximum: 140 W | Power average: 130 W Power maximum: 200 W |
| 4 – 7 modules | Power average: 60 W Power maximum: 100 W | Power average: 80 W Power maximum: 140 W | Power average: 125 W Power maximum: 200 W |
| 1 – 3 modules | Power average: 55 W Power maximum: 90 W | Power average: 80 W Power maximum: 120 W | Power average: 120 W Power maximum: 190 W |
Power consumption calculator
Aeroqual provides a power demand calculator for you to calculate the specific power demands of your AQM 65 under your local temperature conditions. The power demands have been measured under real conditions using an environmental chamber capable of achieving the temperature ranges recorded in the table.
To download the calculator (an Excel .xls spreadsheet) click here, the download will appear in your downloads folder and at the bottom of your browser.
To use the calculator, simply type YES in the cell next to the components in your AQM 65. All have the embedded PC, sample pump and system manager. We recommend you include the Moxa modem. The other modules are optional and unique to your AQM 65.
As you type, the calculator automatically updates its readings to show the P average [W] and P maximum [W] for a range of different external temperatures.
In this example, the AQM 65 is configured with NOx, O3 and CO gas modules as well as a PM 10.0 particle monitor.
The calculator tells us, running in an ambient outdoor temperature of 30oC, it has an average total power demand of 97 W and a maximum total power demand of 132 W.
