Current Transducer ITZ 6100-S FLEX ULTRASTABIP N = 6100 A

For ultra-high precision measurement of current: DC, AC, pulsed..., with galvanic separation
between primary and secondary. Separate magnetic head and measuring electronics provides
high flexibility.

Features

Applications● Closed loop fluxgate● Feedback element in high-precision, high-stability power● Split design - separate head

supplies

and rack electronics● Calibration unit

● Analog output on 15-pin D-sub female output connector● Absolute current standard reference● Status/interlock port on 9-pin D-sub male output connector● Test and calibration of current sources● Secondary current monitoring on BNC connector● Current extender for power systems● 4 mm banana sockets for secondary current output● Differential current measurement on power line

● Full-featured indicator panel.

● Metrology applications.

Advantages

Standards● Very high accuracy

EMC:● EN 61000-6-2: 2019

● Excellent linearity● EN 61000-6-3: 2007 + A1 (2011)● Extremely low temperature drift● EN 61326-1: 2013

● Wide frequency bandwidth● High immunity to external fields

Safety:● IEC 61010-1: 2010/AMD1: 2016.

● No insertion losses● Low noise on output signal● Low noise feedback to primary conductor.

Application Domains● Industrial● Laboratory● Medical.

N° 88.23.R2.000.0
11November2022/Version 1

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ITZ 6100-S FLEX ULTRASTAB
Safety⚠

This transducer must be used in limited-energy secondary circuits according to IEC 61010-1.

CautionThis transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements inaccordance with the manufacturer’s operating instructions.
If the device is used in a way that is not specified by the manufacturer, the protection provided by the device may becompromised. Always inspect the electronics unit and connecting cable before using this product and do not use it if damaged.
Mounting assembly shall guarantee the maximum primary conductor temperature, fulfill clearance and creepage distance,
minimize electric and magnetic coupling.

Caution, risk of electrical shock
Use caution during installation and use of this product; certain parts of the module can carry hazardous voltages and high currents(e.g. primary conductor).
Ignoring this warning can lead to injury and or/or cause serious damage.
De-energize all circuits and hazardous live parts before installing the product.
All installations, servicing operations and use must be carried out by trained and qualified personnel practicing applicable safety
precautions.
This transducer is a built-in device, no maintenance required; cleaning by dry compressed air is authorized.
This transducer is a build-in device, whose hazardous live parts must be inaccessible after installation.
This transducer must be mounted in a suitable end-enclosure.
Besides make sure to have a distance of minimum 30 mm between the primary conductor (return bar) and the transducer andother neighboring components.
Main supply must be able to be disconnected.
Always inspect the current transducer for damage before using this product.
Never connect or disconnect the power while the primary circuit is connected to live parts.
Never connect the output to any equipment with a common mode voltage to earth greater than 30 V.
Always wear protective clothing and gloves if hazardous live parts are present in the installation where the measurement is carriedout.
Safe and trouble-free operation of this transducer can only be guaranteed if transport, storage and installation are carried out
correctly and are carried out with care.
The current transducer shall not be opened or modified.
If not working, the current transducer shall be replaced by an equivalent device.
In case of main supply cable replacement, make sure to use similar cable to guaranty the safety; please refer to the user
manual for more information.

RemarkInstallation of the transducer must be done unless otherwise specified on the datasheet, according to LEM
Transducer Generic Mounting Rules. Please refer to LEM document N°ANE120504 available on our Web site:
https://www.lem.com/en/file/3137/download/.

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ITZ 6100-S FLEX ULTRASTAB

Mains INPUT
Parameter

Symbol

Unit

Value

Mains input voltage

UCV

100-240 V AC (±10 %)Mains input frequency

f

Hz

50/60

At

2.5/240 V AC

Fuses

Power consumption

PC

W

Comment
IEC-type inlet socket
OVCII and PD2

Internal fuses, not user-replaceable76

ITZ 2000-S; ITZ 2000-SB;
ITZ 2000-SPR;
ITZ 2000-SBPR;
ITZ 5000-S; ITZ 5000-SB

137

ITZ 10000-S; ITZ 10000-SB

163

ITZ 6100-S

202

ITZ 16000-S; ITZ 16000-SB300

ITZ 24000-S; ITZ 24000-SB

Insulation coordination
Parameter

Symbol

Unit

Value

Rated insulation RMS voltage, basic insulation

UNm

V

4000

IEC 61010-1 conditions- over voltage cat III- pollution degree 2

Rated insulation RMS voltage, reinforced insulation

UNm

V

2000

IEC 61010-1 conditions- over voltage cat III- pollution degree 2

RMS voltage for AC insulation test, 50/60 Hz, 1 min

Ud

kV

16.2

RMS voltage for AC insulation test, 50/60 Hz, 1 min

Ud

kV

29.8

Clearance (pri. - sec.)

dCI

mm

40

Shortest distance throughair

Creepage distance (pri. - sec.)

dCp

mm

40

Shortest path along device
bodyComparative tracking index

CTI

V

100

Symbol

Unit

Min

TA

°C

0

55

Ambient operating temperature ELECTRONICS

TA

°C

10

40

Ambient storage temperature HEAD and ELECTRONICS

TA st

°C

−20

85

Maximum primary conductor temperature

TB max°C

Relative humidity

RH%

Comment

Environmental and mechanical characteristics
Parameter
Ambient operating temperature HEAD

Typ

Max

Comment

100
20

80

Non-condensing

Environmental conditions

Indoor

Cooling conditions

Natural convection

Dimensions ELECTRONICS

482 × 88 × 430
see drawing (page 13)mm

Dimensions HEAD

see drawing (page 13)

Altitudem

2000

Mass rack electronics

m

kg

9.2

Mass head1)
Note:
Insulation coordination at 2000 m.

m

kg

17

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1)

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ITZ 6100-S FLEX ULTRASTABElectrical data
At TA= 25 °C unless otherwise noted.

Parameter

Typ

Max

SymbolUnit

Min

Primary continuous direct current

IP N DCA−6100

Primary nominal RMS current

IP N

A

Primary current, measuring range

IP M

A

8030

8030

Measuring resistance

RM

Ω

0

1.5

Secondary current

IS

A

−2.44

2.44

Turns ratio

6100
6100

NP/NS

1:2500Resistance of secondary windingRSΩ

Primary withstand peak current (max) 1)

ÎP maxkA

Mains supply RMS voltage

Comment

V

4.3
25
100

240

Rated power supply frequency

f

Hz

50/60

Power consumption IP = 0 A@ Mains supply = 230 V RMS

PC

W
VA

72
157

AveragePeakPower consumption IP = IP N DC (6100 A)@ Mains supply = 230 V RMS

PC

W
VA

163
216

AveragePeak
0.1

RMS noise current 0 … 10 Hz 2)
RMS noise current 0 … 10 kHz 2)
RMS noise current 0 … 100 kHz

Ino

ppm

8
20

2)

Re-injected RMS noise on primary bus bar
0 ... 100 kHzµV

10Electrical offset current 2)

IO E

ppm

−2

2

Temperature coefficient of IO E 2)

TCIO E

ppm/K

−0.1

0.1

ppm/month

−1

1

εL

ppm

−5

5

Delay time @ 90 % of the final output
value IP N DC step

tD 90

µs

Frequency bandwidth (±3 dB)

BW

kHz

0

di/dt accurately followed

di/dt

A/µs

50

Offset stability

2)Linearity error

2)

1
300

10 °C ... 40 °C

With adi/dt ≥ 50 A/µs
Small-signal
bandwidth,
1 % of IP N DC

Notes: 1) Single pulse of 100 ms only, not AC. The transducer may require a few seconds to return to		 normal operation when autoreset system is running.
2)
All ppm figures refer to full-scale which corresponds to a secondary current (IS) output of 2.44 A.

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ITZ 6100-S FLEX ULTRASTAB
Typical power consumption

Typical power consumption vs primary current

TA = 25 °C

180

160

Typical power consumption (W)

140

120

100

80

60

40

20

Primary current IP (A)
-8000

-6000

-4000

-2000

0

0

2000

4000

6000

8000

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ITZ 6100-S FLEX ULTRASTAB
System overview
Transducer Head

DigitalMultimeter

DigitalMultimeter

0.000

0.000

Iin

Uin

DMM

DMM

IMPORTANT :The GREEN secondary current path must be
closed at all times when MAINS power isapplied.
If only one of the two current output ports is inuse, the other MUST be shorted with theappropriate shorting plug.

RM
Monitor
Connector±1 V full-scale

Front Panel Indicators

Power
AmplifierStatus/InterlockConnector

Mains
100-240 V
50/60 Hz

Analog Out Connector

4mm
BananaOutputIs.return

Is.outFerrite core

HIGH Ip

OVERLOAD

ACTIVE

600A
2000A
5000A

POWER
STATUSCUSTOM

0.1Ω

ITZ Rack Electronics

6100A
24000A

16000A

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 6100 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 IP is higher than approximately 1 %of IP N DC

HIGH IP (yellow LED)

This LED is lit when IP is higher than approximately 105 %of IP N DC

OVERLOAD (red LED)

This LED is lit when the transducer head saturates due toexcessive primary current.

600 A ... 24000 A (yellow LED)

These LEDs are lit when a transducer head with thecorresponding full-scale range is connected to the rackelectronics. For ITZ 6100-S, only LED 6100 A is lit, and theothers 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).

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ITZ 6100-S FLEX ULTRASTAB
Back panel
2

8

1

7

Reference

3

6

5

4

Description

1

IEC power inlet: This connector accepts a standard IEC power cord (supplied)

2

Type / Serial number plate. Three individual S/Ns may be listed here: One for the ITZ electronics, one forthe matching head and one (optional) for the installed voltage output module

3

Transducer head: Connection to the transducer head4

Analog out: Output connection to a DMM or other equipment, 15-pin D-Sub female UNC 4-40 screw lock5

Current ±: Secondary current output

6

Monitor: Voltage output with a buffered replica of the secondary current

7

Status/Interlock signal outputs, 9-pin D-Sub male UNC 4-40 screw lock8

Option A+B: These positions are for future expansion or customization (not used)

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ITZ 6100-S FLEX ULTRASTAB
Status /Interlock Port - electrical specification
All signals on the Status/Interlock port are optically isolated, Photocouplers type, floating Collector and Emitter.
Four signals are present on the port, each having two dedicated floating pins in the SUBD9 Male connector:. Collector (C)and. Emitter (E)C

SUBD9 PinC

1

OVERLOADEC

3ACTIVESUBD9 Pin

E

6

SUBD9 Pin

C

2High IpE

SUBD9 Pin

SUBD9 Pin

8

SUBD9 Pin

4
STATUSSUBD9 Pin

E

7

SUBD9 Pin

SUBD9 Pin
Not Connected

95

Status /Interlock port wiring
Depending on how each signal is wired, it can be “Active Low” or “Active High” as shown below:

Status/Interlock port Wiring
Diagram A+UC

R

Diagram B

+UC

DC
Power
SupplyDC
Power
SupplyCC

SUBD9 Pin

Uout

E
E

SUBD9 Pin

SUBD9 Pin

Uout

SUBD9 Pin

R
Active Low Output

Active High Output

In the Diagram A Active Low Output, the output signal Uout switches to GND when the corresponding LED is ON.
In the Diagram B Active High Output, the output signal Uout switches to +UC when the corresponding LED is ON.
When the output signal Uout is switched to GND, its value is lower than 0.2 V.
When the output signal Uout is switched to +UC, its value is equal to +UC.

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ITZ 6100-S FLEX ULTRASTAB
In case diagram A, the following table shows how each individual output signal acts:

Output signal

Description

Uout< 0.2 VOVERLOAD

The transducer head is saturated due to excessive primary current
The transducer head is not saturated+UC

High IPACTIVE< 0.2 VThe primary current is higher than 105 % of nominal full-scale output+UC

The primary current is lower than 105 % of nominal full-scale output< 0.2 VThe primary current is higher than approximately 1 % of nominal full-scale output+UC

The primary current is lower than approximately 1 % of nominal full-scale output< 0.2 VSTATUS

When the unit status is OK (Normal operation)
When the unit status is not OK (Supply fault, over-temperature conditions and Current
overloads or No detected head)+UC

In case diagram B, the following table shows how each individual output signal acts:

Output signal

Description

Uout

The transducer head is saturated due to excessive primary current+UC

OVERLOAD< 0.2 VHigh IPACTIVEThe transducer head is not saturated+UC

The primary current is higher than 105 % of nominal full-scale output< 0.2 VThe primary current is lower than 105 % of nominal full-scale output+UC

The primary current is higher than approximately 1 % of nominal full-scale output< 0.2 VThe primary current is lower than approximately 1 % of nominal full-scale output+UC

STATUS

When the unit status is OK (Normal operation)
When the unit status is not OK (Supply fault, over-temperature conditions and Current
overloads or No detected head)< 0.2 VThe power supply voltage +UC must be between 4 V and 60 V DC and the resistor value must be chosen between a minimum
value Rmin and a maximum value Rmax calculated by using the following equations:

R min (k Ω ) =

+UC
3 .4

+ UC
1.7

and R max (k Ω ) =Some recommended standard values of R are given in the following table:

Power supply voltage +UC

Rmin (kΩ)

Rmax (kΩ)

R Standards values ±5 %

5V

1.5

3

1.8 kΩ or 2.2 kΩ

12 V

3.5

7

4.7 kΩ or 6.8 kΩ

24 V

7

14

10 kΩ or 12 kΩ

Absolute maximum ratings
Parameter

SymbolSpecification

Unit

+UC

60

V

Maximum Collector-Emitter Voltage, Off-state

UC E off max

60

V

Maximum reverse Collector-Emitter Voltage, Off-state

UC E off max

5V

Maximum Collector-Emitter Current, On-state

IC E ON max

10

mA

Power supply voltage

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the status/interlock signal outputs.

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ITZ 6100-S FLEX ULTRASTAB
Sweep function during overload status
The overload occurs when the primary current IP exceeds a trip level such that the fluxgate detector becomes completely saturated
and, consequently, the transducer will switch from normal operation to overload mode.
This trip level is guaranteed to be greater than 110 % of IP N DC and its actual value depends on operating conditions such astemperature and measuring resistance.
When this happens, the ITZ rack electronics will automatically begin to sweep in order to lock on to the primary current again andthe measuring can resume when the primary current returns in the nominal range between −IP N DC and +IP N DC.
In sweep mode, the secondary current will be a slope between −2.44 A and +2.44 A.

Thermal protection
The ITZ 6100-S has thermal shutdown circuitry that protects the electronics from damage.
The thermal protection circuitry disables the measuring circuit when the rack electronics temperature reaches approximately
65 °C and allows the transducer to cool. When this occurs, the status LED is switched off.
When the rack electronics temperature cools to approximately 60 °C, the measuring circuit is automatically re-enabled and thestatus LED is again lit.

Over current protection - Electrical specifications
The over current occurs when the primary current exceeds 120 % of IP N DC.
To detect the over current with primary AC, the secondary current is full-wave rectified and is time-averaged by a low-pass filter.
Depending on the frequency range of the primary current, two cases appear:-L ow frequency range: DC – 1.6 Hz (over current slow)
In this case, the over current trip level is set to 120 % of IP N DC.
The secondary current is tracked until the primary AC peak exceeds this trip level. Then, the rack electronics shut down themeasuring circuit and wait until the primary AC peak becomes lower than the set trip level.
-H igh frequency range: 1.6 Hz – 1.6 KHz (over current fast)
In this case, the over current trip level is set to 160 % of IP N DC.
The secondary current is tracked until the primary AC peak exceeds this trip level. Then, the rack electronics shut down themeasuring circuit and wait until the primary AC peak becomes lower than the set trip level.
The frequency response characteristics of the over current trip level with a sine-wave primary AC is illustrated by the following
curve:
Typical over current trip level vs frequency

TA = 25 °C

450

Typical over current trip level (% of I P N DC)

400

350

300

250

200

150

100

50

0.0 (DC)0

Frequency (Hz)
0.1

1.0

10.0

100.0

1000.010000.0

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ITZ 6100-S FLEX ULTRASTAB
The table shown below summarizes various frequency values and the typical value of over current trip level to detect over current
state:

Primary current frequency (Hz)Typical over current trip level to detect over current state

DC (0 Hz))

120 % of IP N DC

1

130 % of IP N DC

1.5

140 % of IP N DC

50

160 % of IP N DC

800

170 % of IP N DC

1600

186 % of IP N DC

Under these conditions:- The signal Status (Contact between Pin 4:C and Pin 9:E) switches off, this signal becomes open (No current from collector toemitter) to indicate that the unit is not OK.
- The status green LED located on the front panel switches off (fault state)- The transducer is protected against damage that the over current primary AC may cause to the electronics.
The transducer will automatically starts again to work when the primary AC peak becomes lower than the trip level indicated in
the table above.

Transducer head description
Connect the transducer head to the electronics rack using the supplied transducer head cable.
The side of cable where there is the ferrite must be connected to the rack electronics.
The transducer head cable is available in three lengths: 10, 20 and 30 meters.
For more information, see section “ITZ mandatory accessories” on page 12.

Analog output connector
Normally the provided analog output cable should be used. It is also possible to configure your own output cable, bearing thefollowing description in mind.
The female 15-pin D-Sub connector Analog out connector contains the following signals:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

Current return
Current return
Current return
No connection
No connection
GroundNo connection
No connection
Current out
Current out

11.
12.
13.
14.
15.

Current out
No connection
No connection
No connection
No connection

18

1

8

15
9

9
15

The pins 1 to 3 are internally shorted by rack electronics. It is the same for pins 9 to 11.
Details of further considerations relating to connect the analog output connector directly to a current measuring device can befound in the ITZ FLEX ULTRASTAB user guide.

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ITZ 6100-S FLEX ULTRASTAB
Secondary current monitoring
The rack electronics incorporates a 0.1 Ω resistance in series with the measuring resistance for the monitoring of the secondary
current.
A BNC connector located on the rear panel provides a low-precision voltage output ±1 V full-scale which indicates a secondary
current flowing through the measuring resistance and the 0.1 Ω resistance.
The voltage on this connector is equal to (IP (A) × 0.1 Ω × 4.1) /2500 (Volt).
As one example, if IP is 6100 A, the voltage on this connector is 1 V. Similarly, if IP is −6100 A, the voltage on this connector is −1 V.
As another example, if IP is 3050 A, the voltage on this connector is 0.5 V. Similarly, if IP is −3050 A, the voltage on this connector
is −0.5 V.

Delivery package
The LEM ITZ 6100-S FLEX ULTRASTAB package contains by default:● 19-inch rack-mount ITZ FLEX ULTRASTAB electronics● Transducer head
● European (Schuko CEE 7/7) and US/Japanese mains cables, 2 m each (with three-pole IEC C13 female connector).
● Short-plug for 4 mm banana terminals and 15-pin D-Sub short-plug for analog output connector(back panel of electronics rack)

Mandatory accessories
The 2 following accessories have to be separately ordered as per the table hereafter, otherwise the ITZ FLEX ULTRASTAB can
not operate without them:● Transducer head cable (interconnecting cable between transducer head and electronics rack)● Analog output cable

ITZ mandatory accessories

Available material

Available length

Part number

Transducer HEAD cable

Non-Halogeneous
Non-Halogeneous
Non-Halogeneous
Halogeneous
Halogeneous
Halogeneous

10 m
20 m
30 m
10 m
20 m
30 m

71.16.13.001.0
71.16.17.001.0
71.16.20.001.0
71.16.13.000.0
71.16.17.000.0
71.16.20.000.0

Analog output cable

Non-Halogeneous

1.5 m

71.17.E7.001.0* Other values might be possible upon request to LEM.

Optional
Calibration can be separately ordered as per the table hereafter:● Calibration with certificate in ISO 17025 certificated laboratory

ITZ calibration (optional)

Available calibration

From −5000 A to +5000 A in differential method
From −6100 A to +6100 A in comparaison method

11 points +2 points(2 separate reports)

From −5000 A to +5000 A in differential method (Total error < 10 ppm of nominal)
From −6100 A to +6100 A in comparison method (Total error < 30 ppm of nominal)

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ITZ 6100-S FLEX ULTRASTAB
Dimensions - rack electronics (in mm, general tolerance ±1.5 mm)

Dimensions - ITZ 6100-S measuring head (in mm, general tolerance ±1.5 mm)
121
92

69

174,5

284

350

3
0,
14

350
192

134

Ø 10.5 (4x)290

UTO connector
UTO 01619SH
SOURIAU

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