METREL MI 2893 User Manual

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
Measuring range
Resolution
Accuracy
1 % U
Nom
< U
Sig
< 3 % U
Nom
10 mV
± 0.15 %  U
Nom
3 % U
Nom
< U
Sig
< 20 % U
Nom
10 mV
± 5 %  U
Sig
U
Nom
: Nominal current (RMS)
U
Sig
: Measured signalling voltage
6.2.19 Unbalance
Unbalance range
Resolution
Accuracy
u
-
0.5 % ÷ 5.0 %
0.1 %
± 0.15 %
± 0.15 %
u
0
i
-
0.0 % ÷ 20 %
0.1 %
± 1 %
± 1 %
i
0
6.2.20 Overdeviation and Underdeviation
Measuring range
Resolution
Accuracy
U
Over
0 ÷ 50 % U
Nom
0.001 %
± 0.1 % U
Nom
U
Under
0 ÷ 90 % U
Nom
0.001 %
± 0.1 % U
Nom
6.2.21 Time and duration uncertainty
Standard compliance: IEC 61000-4-30 Class A (Section 4.6)
Real time clock (RTC) temperature uncertainty
Operating range
Accuracy
-20 C ÷ 70 C
± 3.5 ppm
0.3 s/day
0 C ÷ 40 C
± 2.0 ppm
0.17 s/day
Real time clock (GPS) temperature uncertainty
Operating range
Accuracy
-20 C ÷ 70 C
± 2 ms / indefinitely long
Event duration and recorder time-stamp and uncertainty
Measuring Range
Resolution
Error
Event Duration
10 ms ÷ 7 days
1 ms
 1 cycle
Record and Event Time stamp
N/A
1 ms
 1 cycle
6.2.22 Temperature probe
Measuring range
Resolution
Accuracy
-10.0 C ÷ 85.0 C
0.1 C
± 0.5C
-20.0 C ÷ -10.0 C and 85.0 C ÷ 125.0 C
± 2.0C

METREL MI 2893 Specifications

General

Brand	METREL
Model	MI 2893
Category	Measuring Instruments
Language	English