MI 2893 / MI 2892 / MI 2885 Measurements
227
(2)
: If fundamental voltage frequency is within 16÷33Hz range
(3)
: If fundamental voltage frequency is within 33 ÷ 120Hz
6.2.18 Signalling
1 % U
Nom
< U
Sig
< 3 % U
Nom
3 % U
Nom
< U
Sig
< 20 % U
Nom
U
Nom
: Nominal current (RMS)
U
Sig
: Measured signalling voltage
6.2.19 Unbalance
6.2.20 Overdeviation and Underdeviation
6.2.21 Time and duration uncertainty
Standard compliance: IEC 61000-4-30 Class A (Section 4.6)
Real time clock (RTC) temperature uncertainty
Real time clock (GPS) temperature uncertainty
± 2 ms / indefinitely long
Event duration and recorder time-stamp and uncertainty
Record and Event Time stamp
6.2.22 Temperature probe
-20.0 C ÷ -10.0 C and 85.0 C ÷ 125.0 C