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7November2022/Version 8
LEM reserves the right to carry out modifications on its transducers,
in order to improve them.
LEM International SA
Route du Nant-d’Avril, 152
1217 Meyrin
www.lem.com
ITZ 2000-SPR FLEX ULTRASTAB
System overview
Front panel indicators
When the mains supply voltage is set up, the rack electronics starts and initializes itself. After this process, the LEDs POWER,
STATUS and 2000 A light up.
The LEDs present on this panel display information about conditions which affect the operation of the transducer.
They are defined in the following table:
LED
Description
POWER (blue LED)
This LED is lit when the mains supply voltage is present
ACTIVE (yellow LED)
This LED is lit when
I
P
is higher than approximately 1 %
of
I
P N
DC
HIGH
I
P
(yellow LED)
This LED is lit when
I
P
is higher than approximately 105 %
of
I
P N
DC
OVERLOAD (red LED)
This LED is lit when the transducer head saturates due to
excessive primary current.
600 A ... 24000 A (yellow LED)
These LEDs are lit when a transducer head with the
corresponding full-scale range is connected to the rack
electronics. For ITZ 2000-S, only LED 2000 A is lit, and the
others may be ignored.
CUSTOM (yellow LED)
Reserved for a custom head configuration.
STATUS (green LED)
This LED is lit when the unit status is OK (Normal operation).
POWER
2000A
16000A
OVERLOAD
600A
10000A
5000A
24000A
HIGH
I
P
ACTIVE
STATUS
CUSTOM
Front Panel Indicators
0.000
U
in
IMPORTANT :
The GREEN secondary current path must be
closed at all times when MAINS power is
applied. Also, the programming plug must
always be mounted on the transducer head.
If only one of the two current output ports is in
use, the other MUST be shorted with the
appropriate shorting plug.
Transducer Head
Mains
100-240
V
50/60
Hz
ITZ Rack Electronics
Power
Amplifier
I
S
.out
I
S
.return
0.1
Ω
Analog Out Connector
R
M
Monitor
Connector
±1
V full-scale
DMM
0.000
I
in
DMM
Status/
Interlock
Connector
4mm
Banana
Output
Ferrite core
Programming
plug
Digital
Multimeter
Digital
Multimeter
