Flex current clamps A 1501, A 1502 and A 1503
11
7.2 A 1503
FEATURES
DESCRIPTION
NOTES
Length of the sensor
90 cm / 35 in
Max. conductor diameter
27 cm / 10,6 in
Nominal current range
60 A / 600 A / 6000 A ac rms, with crest factor
3 or less
Effective measuring range
60A range: 6 A
… 90 A
600A range: 30 A
… 900 A
6000A range: 160 A
… 9000 A
3,5
Maximal current
120 A / 1200 A / 12000 A of pure sinus current
Bandwidth
10 Hz
… 8 kHz
1
Accuracy
±1.2 % of reading
2, 3
Position sensitivity
±2 % of nominal current range
Temperature dependency
± 0.02 % of reading / ºC
5
External magnetic field
rejection in reference to
adjacent conductor
40 dB ( 1 % of adjacent conductor current)
4
Residual current (noise)
60A range: 0.24 A
600A range: 0.6 A
6000A range: 6 A
3
Phase error
<0.2
° @ 50 Hz
<3
° @ 1.5 kHz
Electrical Safety
Double insulation
EN 61010
– CAT III / 1000 V up to 3000 m
Pollution degree
2
Working and storage
temperature range:
Flexible current sensor: -20
… 85 ºC
Other clamp parts: -20
… 70 ºC
Humidity
95 % RH (0
C
… 40
C), non-condensing
Weight of flexible sensor
< 200 g
Water and dust proofing
IP 65
1. Limits of bandwidth corresponding to a relative gain > - 3 dB
2. Reference conditions:
Frequency: 50/60 Hz;
Temperature: 23 ºC;
Conductor is in the centre and perpendicular to the current clamps;
Clamps connected to MI 2892 Power Master;
Laboratory environment.
3.
𝑀𝑒𝑎𝑠𝑢𝑟𝑒𝑚𝑒𝑛𝑡 𝑒𝑟𝑟𝑜𝑟 = √(
𝐼
𝑅𝑒𝑠𝑖𝑑𝑢𝑎𝑙
𝐼
𝑀𝑒𝑎𝑠𝑢𝑟𝑒𝑑
∙ 100)
2
+ 𝐴𝑐𝑐𝑢𝑟𝑎𝑐𝑦
𝐶𝑙𝑎𝑚𝑝
2
+ 𝑃𝑜𝑠𝑖𝑡𝑖𝑜𝑛
2
+ 𝐴𝑐𝑐𝑢𝑟𝑎𝑐𝑦
𝑀𝐼2892
2
4. Adjacent conductor
≥
10 cm from current clamps.
5.
With accuracy: ±5 % of reading from the MI 2892 Power Master in real
conditions (with position, residual current, and intrinsic errors included)
