Voltage measured versus voltage reported and component calibration

DIY
, , ,
1

Are the individual components calibrated prior to being shipped?

I am asking this since Victron Connect is reporting a slight variation in voltages whereas a Fluke 77V MAX consistently reports identical voltages for all components when measured at their respective wire terminals. My primary concern is how the individual components will operate when connected with VE.Smart networking.

Components:

  • Blue Smart IP22 Charger 12/30 (1)
  • Smart BatteryProtect 12/100
  • Orion XS 12/12-50
  • Phoenix 12/500
  • SmartSolar MPPT 100/30
  • two Lynx Power In (w/MEGA) connecting all

All components have latest firmware.

RC 25-207
RC 25-2071624Ă—1600 235 KB

2

You are talking about a 0.03v difference in some readings.
The inverter being at (12.83-12.78) 0.05v

Fluke itself says 0.3% accuracy is allowable… It is pretty darn accurate.

At this point it is not even necessary unless you need low temperature cut off.
If you need charge current limiting then get a GX

2 Likes
3

The components will all work from their own voltages and currents because you do not have a source of battery voltage such as a SmartShunt or Smart Battery Sense. If you had one of these they would all follow the one voltage. As it is without one, once current is flowing each item of equipment will use its own voltage which will vary with the voltage drop

VE Smart Neting manual

3 Likes
4

No, Individual products are not “calibrated”. There are no internal registers for setting a fine calibration, as this is not generally needed. The main instance where precise calibration and measurement is needed is when using Lithium batteries. These have a very accurate BMS system, and this is why it’s most useful to have a BMS with EXTERNAL communications, so the rest of the system can share the data.

1 Like