I have a Qubino meter. I got the node_id and I accordingly set up a binding in .items:
Number Qubino_Power "QubinoP: [%s]" <present> {zwave="28:0:command=meter,meter_scale=E_W"}
Number Qubino_Energy "QubinoE: [%s]" <present> {zwave="28:0:command=meter,meter_scale=E_kWh"}
Number Qubino_Current "QubinoC: [%s]" <present> {zwave="28:0:command=meter,meter_scale=E_A"}
Number Qubino_Voltage "Qubino:V [%s]" <present> {zwave="28:0:command=meter,meter_scale=E_V"}
Number Qubino_Power_Factor "QubinoPF: [%s]" <present> {zwave="28:0:command=meter,meter_scale=E_Power_Factor"}
But strangely openhab seems to not be able to discriminate E_V, E_A and E_Power_Factor (I t ried with openzwave and I can correctly detect changes in all variables):
2016-10-17 13:38:31.158 [INFO ] [runtime.busevents ] - Qubino_Energy state updated to 0.6 <------OK
2016-10-17 13:38:33.165 [INFO ] [runtime.busevents ] - Qubino_Power state updated to 85.9 <----OK
2016-10-17 13:38:34.155 [INFO ] [runtime.busevents ] - Qubino_Energy state updated to 229.5 <----WRONG: this is a Voltage
2016-10-17 13:38:36.165 [INFO ] [runtime.busevents ] - Qubino_Power state updated to 969.6 <---- WRONG: this is a power factor
2016-10-17 13:38:39.160 [INFO ] [runtime.busevents ] - Qubino_Energy state updated to 0 <-- WRONG: this is a current