LEM IT 150-S ULTRASTAB Quick Start Manual

High Performance Current Transducer
IT 150-S ULTRASTAB
For the electronic measurement of currents: DC, AC, pulsed...,
with galvanic isolation between the primary circuit and the secondary
circuit.
Electrical data
Primary nominal current DC
I
PN
Primary nominal current rms
I
PN
Primary current, measuring range
I
PM
Max overload capability 100 ms
Î
P
R Measuring resistance
M
Over operating current, temperature and
supply voltage range
Secondary current
I
S
Secondary nominal current rms
I
SN
Conversion ratio
K
N
Supply voltage (± 5 %)
V
C
Current consumption ± 15 V
I
C
Accuracy - Dynamic performance data
ε
2)
Linearity error
L
Electrical offset current + self magnetization +
I
OE
effect of earth magnetic field @ T
∆I Offset stability (no load)
OE
Temperature coefficient of I
TCI
OE
Offset vs. power stability @ T
@ V = ± 15 V ± 5 %
C
General data
Ambient operating temperature
T
A
Humidity (non condensing)
Ambient storage temperature
T
S
Humidity (non condensing)
Secondary coil resistance @ T
R
S
m Mass
Single pulse only, not AC.
Notes: 1)
The transducer may requires a few seconds to return to normal operation
when autoreset system is running.
All ppm figures refer to secondary measuring range 200 mA.
2)
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
16January2012/version 3
1)
= 25°C
2)
A
2)
(10°C .. 50°C)
2)
OE
= 25°C
2)
A
= 25°C
A
150 A
106 A
0 .. ± 150 A
± 750 A
R R
M min M max
5 5 Ω
0 .. ± 200 mA
142 mA
1 : 750
± 15 V
≤ 200 mA
I
+
S
≤ 4 ppm
< 80 ppm
< 4 ppm/month
< 0.8 ppm/K
< 6 ppm/% of
= ± 15 V
V
C
10 .. + 50 °C
20 - 80 % RH
- 20 .. + 85 °C
20 - 80 % RH
7 Ω
1 kg
I = 0 ..150 A
PM
Features
● Closed loop (compensated)
current transducer using an
extremely accurate zero flux
detector
● Electrostatic shield between
primary and secondary circuit.
Special features
● 9-pin D-sub male secondary
connector
● Output indicates the transducer
state.
Advantages
● Very high accuracy
● Excellent linearity
● Extremely low temperature drift
● Wide frequency bandwidth
● High immunity to external
electrostatic and magnetic fields
interference
● No insertion losses
● High resolution
● Low noise on output signal
● Low noise feedback to main
conductor.
Applications
● Feed back element in high
performance gradient amplifiers
for MRI
● Feed back element in precision
current regulated devices (power
supplies...)
● Calibration unit
● Precise and high stability
inverters
● Energy measurement
● Medical equipment.
Application domain
● Industrial and Medical.
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