Page 12/15
7November2022/Version 6
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-SBPR FLEX ULTRASTAB
Programming example to 125 A
:
An ITZ 2000-SBPR transducer head programmed to 125 A will produce 1 A when the primary current is equal to 125 A.
The current conversion ratio of the transducer is then:
Programming example to 375 A:
An ITZ 2000-SPR transducer head programmed to 375 A will produce 1 A when the primary current is equal to 375 A.
The current conversion ratio of the transducer is then:
Analog output connector
Normally the provided analog output cable should be used. It is also possible to configure your own output cable, bearing the
following description in mind.
The female 15-pin D-Sub connector Analog out connector contains the following signals:
1.
Current return
2.
Current return
3.
Current return
4.
U
S
High Sense
5.
U
S
High Out
6.
Ground
7.
U
S
Low Sense
8.
U
S
Low Out
9.
Current out
10.
Current out
11.
Current out
12.
U
S
High Sense
13.
U
S
High Out
14.
U
S
Low Sense
15.
U
S
Low Out
Connect both pins 1 and 9, pins 2 and 10, pins 3 and 11. This will loop the current output to the voltage output module.
The sense pins
U
S
High Sense at pins 4 and 12,
U
S
Low Sense at pins 7 and 14 and the voltage output pins
U
S
High Out at pins
5 and 13,
U
S
Low Out at pins 8 and 15 are internally shorted by rack electronics.
Be sure to connect both pins 12 and 13, pins 14 and 15.
The output signal
U
S
High is then present at pins 4 and 5 and the output signal
U
S
Low is then present at pins 7 and 8.
The connections described above are illustrated by the following figure:
Details of further considerations relating to connect the analog output connector directly to a current measuring device can be
found in the ITZ FLEX ULTRASTAB user guide.
15
9
8
1
1
8
9
15
S
P
10 V
1 V/A
125 A 12.5
U
S
I
=
=
=
S
P
10 V
1 V/A
375 A 12.5
U
S
I
=
=
=
13
14
15
12
11
10
9
1
2
3
4
5
6
7
8
Internally
shorted connections
U
s
High
U
s
Low
Internally
shorted connections
Wire these connections as short as possible if
you want to use your own cable
