Intrinsic Uncertainty - AEMC PEL 52 User Manual

h) Current sensor thresholds
Sensor
SR193 clamp
AmpFlex 193
®
MiniFlex MA193
®
or MA194
MN193 clamp
MN93 clamp
MN94 clamp

6.2.4.3 Intrinsic Uncertainty

NOTE: The intrinsic uncertainties of current and phase measurements
must be added to the intrinsic uncertainties of the instrument for the
quantity concerned: powers, energies, power factors, etc.
The following characteristics are given for the reference conditions of the current
sensors.
Characteristics of current sensors with an output of 1 V at I
I Current
nominal (RMS or DC)
[1 A; 50 A]
1000 Aac [50 A; 100 A]
[100 A; 1200 A]
[0.5 A; 5 A]
[5 A; 40 A]
200 Aac
[40 A; 100 A]
[100 A; 240 A]
54
Nominal
current
1000 A
300 A
3000 A
5 A
100 A
200 A
200 A
Table 12
Intrinsic
uncertainty
at 50/60 Hz
SR193 clamp
± 1 % R
± 0.5 % R
± 0.3 % R
MN93 clamp
± 3 % R ± 1 A
± 2.5 % R ± 1 A
± 2 % R ± 1 A
± 1 % R ± 1 A
Power & Energy Logger Model PEL 52 - User Manual
Number of
turns
1 turn
2 turns
3 turns
1 turn
2 turns
3 turns
Intrinsic Typical
uncertainty uncertainty
on φ on φ at
at 50/60 Hz 50/60 Hz
-
± 1 ° + 0.25 °
± 0.7 ° + 0.2 °
-
± 5 °
± 3 ° + 1.2 °
± 2.5 ° ± 0.8 °
Display
threshold
0.50 A
0.40 A
0.21 A
0.15 A
2 A
1 A
0.7 A
2.5 mA
50 mA
0.1 A
50 mA
nom
Resolution
-
10 mA
-
+ 2 °
1 mA