I'm working with a NI9178 chassis equipped with 3 NI9123 modules, with a total of 12 wired piezoelectric accelerometers (PCB393B12).
I need to supply power to both the chassis and my laptop for approximately 30 minutes. As such, I've been looking at UPS options capable of meeting this requirement.
My laptop charger requires 130W of power. Upon looking at the documentation for NI instrumentation, it appears that the NI9178 requires a maximum input power of 15W (with a note indicating "Includes maximum 1W module load per slot across rated temperature and product variations").
Considering these power requirements, we have a total of 145W.
Do you believe this is a feasible amount to sustain the system? 15 W for chassis, modules and sensors seems quite low.
Moreover, assuming a duration of 30 minutes (0.5 hours), would a UPS (or battery) with a capacity of 100 Wh be adequate to power the system? I've performed a calculation using the following relationship:
0.85 × (100 Wh) / (150 W) = 0.56 hours = 34 minutes
To be extra cautious, I'm considering UPS options within the range of 300-500 Wh.
