CHAUVIN ARNOUX CA-MN77 [11/32] Precision and dephasing

CHAUVIN ARNOUX CA-MN93 [11/32] Precision and dephasing

4.3 Precision and dephasing

NB : Intrinsic error as µ of output signal

n 200 A calibre

Intensity in A~ 0.5 à 10 A 10 à 40 A 40 à 100 A 100 à 240 A

MN 08 - MN 09 - MN 10 - MN 11 - MN 12 - MN 13 - MN 14 - MN 15 - MN 38 - MN 39

Intrinsic error (1) ≤ 3 % ≤ 2.5 % ≤ 2 % ≤ 1 %

Dephasing (2) ≤ 5 ° ≤ 3 ° ≤ 2.5 °

MN 60

Intrinsic error (1) ≤ 3.5 % ≤ 3 % ≤ 2,5 % ≤ 1.5 %

Dephasing (2) ≤ 6 ° ≤ 4 ° ≤ 3 °

MN 88 - MN 89

Intrinsic error (1) ≤ 5 % ≤ 3 % ≤ 2 % ≤ 2 %

(1) + 0.5 mA (MN 08/09/10/11) or + 0.5 mV (MN 14/15) or + 5 mV (MN 12/13/38/39/60)

or + 50 mV (MN 88/89) (2) Unspecified

n 200 A calibre

Intensity in A~

0,1 à 1 A 1 à 20 A 20 à 80 A 80 à 150 A 150 à 200 A

MN 21

Intrinsic error (1) ≤ 5 % (1) ≤ 3 % (1) ≤ 1.5 % ≤ 3 % ≤ 5 %

Dephasing (2) (2) ≤ 2 ° ≤ 3 °

MN 23 - MN 73

Intrinsic error (1) ≤ 3 % (3) ≤ 2 % (3) ≤ 1 % ≤ 3 % ≤ 7 %

Dephasing (2) ≤ 3 ° ≤ 2 ° ≤ 3 ° ≤ 4 °

(1) + 20 mA (2) Unspecified (3) + 200 mV

n 20 A calibre

Intensity in A~ 0.1 à 20 A (24 A maxi)

MN 38 - MN 39

Intrinsic error ≤ 1 % + 50 mV

MN 60

Intrinsic error ≤ 2 % + 50 mV

n 10 A calibre

Intensity in A~

0.01 à 0.1 A 0.1 à 1 A 1 à 5 A 5 à 12 A

MN 71

Intrinsic error ≤ 3 % (1) ≤ 2.5 % ≤ 1 %

Dephasing (2) ≤ 5 ° ≤ 3 °

(1) + 0,1 mV (2) Unspecified

n 2 A calibre

Intensity in A~

0.01 à 0.1 A

0.1 à 1 A 1 à 2 A

2 à 2.4 A

MN 73

Intrinsic error ≤ 5 % (1) ≤ 3 % (2) ≤ 1 %

(1) + 2 mV (2) + 1 mV

4.4 Conditions of use

The miniclamps must be used in the following conditions, in order to comply with

user safety and metrological performance requirements.

4.4.1 Overloads

Limit measuring time above 200 A.

Intensity I < 200 A~ 200 A~ < I < 240 A~

Operation Permanent (1)

10 min. ON

followed by 30 min. OFF

(1) With a frequency F < 1kHz and a peak factor Fc < 3

CHAUVIN ARNOUX CA-MN77 [11/32] Precision and dephasing

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