Metrix MX1 - Page 15

■ To obtain intensity in µA, mA or A, multiply the value on the appropriate scale by
the reading coefficient indicated in the table.
3-3-1 DC INTENSITIES
A DC
50µA 500µA 5mA 150mA 500mA 1.5A 10A
Scale
(indication)
50 (b) 50 (b) 50 (b) 15 (a) 50 (b) 15 (a) 15 (a)
(2/3 useful)
Reading
coefficient
x 1 x 10 x 0.1 x 10 x 10 x 0.1 x 1
Voltage
drop at
inputs(1)
< 0.5V < 1V < 1.2V < 0.5V
Accuracy
(2)
2%
Protection Fuse 1.6A HPC 50kA 600V
Fuse 10A
HPC 50kA
600V
(1) without leads
(2) in % of end of scale
Do not use input A on unprotected intensity transformers.
3-3-2 AC INTENSITIES
A AC
500µA 5mA 150mA (4) 500mA 1.5A 10A
Scale
(indication)
50A
AC
(e) 50A
AC
(e) 15A
AC
(d) 50A
AC
(e) 15A
AC
(d) 15A
AC
(d)
(2/3 useful)
Reading
coefficient
x 10 x 0.1 x 10
x 10 000 (4)
x 10 x 0.1 x 1
Accuracy (2) 2.5% 2.5% (5) 2.5% 2.5% (3)
Voltage drop
at input (1)
< 1V < 1.2V < 0.5V
Protection Fuse 1.6A HPC 50kA 600V Fuse 10A
HPC 50kA
600V
(1) without leads in Ammeter mode
Resistance of the supplied leads : ca. 70mΩ.
(2) in % of end of scale. Drift impact in temp : 10% by 10°C
(3) Set the switch to position clamp ratio 1000/1.
(4) x 10 000 when using the clamp ratio 1000/1 (150 Amps end of scale)
(5) When using a clamp add to 2.5%, error due to the clamp
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