LAX100-NP Datasheet, PDF (2/12 Pages) LEM – Current Transducer LAX SERIES

LAX series 16-100 A
Electrical data
At T_A = 25°C, V_C = ± 15 V and R_M = 50 Ω, N_P = 1 turn, high speed PCB design (see page 11), unless otherwise noted.
Parameters with a * in the conditions column apply over the - 40°C.. 85°C ambient temperature range.
Parameter
Symbol Unit Mini Typ Maxi
Conditions
Primary nominal current rms
Primary current, measuring range
Measuring resistance
Secondary nominal current rms
Supply voltage
I_PN
At
I_PM
At ± 160
49
R_M
Ω
0
0
I_SN
mA
50
V_C
V ± 11.4
100
Apply derating according to fig. 2
* VC = ± 15 V ± 5%
51
*
V_C = ± 15 V ± 5%, ± I_PM measuring range,
DC primary current
51
*
V_C = ± 15 V ± 5%, ± I_PM measuring range,
AC primary current
15
*
V_C = ± 12 V ± 5%, ± I_PM measuring range,
DC or AC primary current
at 100 At
± 15.75
Current consumption
Electrical offset current
I_C
mA
10 + I_S 12 + I_S
I_OE
µA -150
0
+150
31
65
V_C = full range
after a cycle to 50 A
Magnetic offset current
I_OM
µA
41
70
100
230
after a cycle to 100 A
after a cycle to 300 A
120
250
after a cycle to 500 A
-200
200
0°C .. + 70°C, V_C = full range
Temperature variation of I_O
I_OT
µA -330
-500
330
- 25°C .. + 85°C, V_C = full range
500 * - 40°C .. + 85°C, VC = full range
Sensitivity
G mA/At
0.5
Primary turns
Sensitivity error
Linearity error
Overall accuracy
Reaction time
di/dt accurately followed
N_P
1
3
ε_G
% -0.47
0.47
%
ε_L
of
range
0.1
0.28
0.06
0.14
0.11
0.32
X_G
% -0.91
0.91
t_ra
µs
0.1
di/dt A/µs
> 100
± 100 A range
± 50 A range
± 100 A range
± 100 A range, low speed 1 turn PCB design
ε ε = I_OE + _G + _L
high and low speed PCB designs,
dI_P/dt = 100 A/µs
0.17
0.1 Hz < f < 49 Hz, I_P = 0
Output current noise
I_no µA_rms
0.17
0.11
Secondary coil resistance
R_S
Ω
60
51 Hz < f < 1 kHz, I_P = 0
1 kHz < f < 100 kHz, I_P = 0
070213/7
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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