High-Performance Current Transducer
ITZ-SB & SBPR ULTRASTAB
For ultra-high precision measurement of current (DC, AC,
pulsed...) with galvanic isolation between primary and secondary.
Separate magnetic head and measuring electronics provides high
fl exibility and a selectable measuring range from 600 to 24000 A.
Electrical data
Parameter
I
Primary nominal current - DC
PN
Primary nominal current - AC
I
PN
I
Primary current - meas. range
PM
Max overload capability
Î
P
100 ms
1)
R
Measuring resistance (option)
M
I
Secondary current
S
V
Secondary voltage
S
K
Conversion Ratio
N
Monitor Output, 5% accuracy
Sec. coil resistance
R
S
@ T
= 25°C
A
V
Mains supply voltage
C
Programming range
- in steps of
Accuracy - Dynamic performance data
Parameter
Linearity error
2)
L
Sensitivity error
G
V
Electrical offset voltage
2)
OE
ΔV
Offset stability - no load
2)
OE
ΔG
Sensitivity stability
TCG
Temperature coefficient of G
TCV
Temperature coefficient of V
OE
OE
General data
Parameter
T
Ambient operating temperature
A
- head
T
Ambient operating temperature -
A
electronics
T
Ambient storage temperature -
S
head and electronics
Humidity - storage and operation
Dimensions - electronics
m
Weight - electronics
Dimensions - head
m
Weight - head
Notes
1)
:
Single pulse only, not AC. The transducer may require a few seconds to return to
normal operation when autoreset system is running.
2)
All PPM fi gures refer to secondary measuring range (
17January2012/version 0
ITZ
ITZ 2000-
ITZ
600-PR
PR
2000
±
600
2000
2000
424
1414
1414
±
600
2000
2000
3 k
10 k
10 k
min
max
1
1
2
±
10
10
10
V/A
1/60
1/200
1/200
±
1
1
1
3.5
5.8
2.7
100-240/50-60Hz
40-600
125-2000
20
125
ITZ
ITZ
ITZ
600
2000
5000
max
10
11
11
max
50
max
max
1.5
max
max
2)
max
0.3
ITZ
ITZ
ITZ
ITZ
600
2000-PR
2000
5000
0 .. +55
+10 .. +40
-20 .. +85
20 .. 80%
480x88x430
8.4
See drawings towards the end of this datasheet
1.0
4.6
3.3
17
LEM reserves the right to carry out modifi cations on its transducers, in order to improve them, without prior notice
ITZ
ITZ
ITZ
ITZ
5000
10000
16000
24000
5000
10000
16000
24000
3535
7070
11314
16970
5000
10000
16000
24000
25 k
> 30k
> 30k
> 30k
0
0.5
2
2
2
3
10
10
10
10
1/500
1/1000
1/1600
1/2400
1
1
1
1
4.3
11.0
20.3
13.7
N/A
ITZ
ITZ
ITZ
Unit
10000
16000
24000
12
12
12
ppm
ppm
3
ppm
ppm/Month
2
ppm/Month
2
ppm/K
ppm/K
ITZ
ITZ
ITZ
Unit
10000
16000
24000
deg. C
deg. C
deg. C
RH
mm
9.2
10.0
kg
20
80
90
kg
I
)
s
I
= 0 .. 24 kA
PM
Features
● ± 10V voltage output
Unit
● Closed loop fl uxgate
A
● Split design - separate head
A
and rack electronics.
(rms)
A
Special features
A
● D-sub 15-pole female output
Ohm
connector
Ohm
● 4 mm banana sockets especially for
A
secondary current output
V
● Full-featured indicator panel
● Also available with current-only output
V
● 600 A and 2000 A measuring head
Ohm
available with programming
option.
V AC
A
Advantages
A
● Very high accuracy
● Excellent linearity
● Extremely low temperature drift
● Wide bandwidth
● High immunity to external fi elds
● No insertion losses
● High resolution
● Low noise on output signal
● Low noise feedback to primary
conductor.
Applications
● Feedback element in high-precision,
high-stability power supplies
● Calibration unit
● Absolute current standard reference
● Test and calibration of current sources
● Current extender for power systems
● Differential current measurement on
power line
● Metrology applications.
Application domain
● Industrial, laboratory and medical.
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