KBR multilog 3 User manual

Operating Manual
Network Analyzer
multilog 3
multilog 3

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Note:
Please note that this operating manual cannot describe the latest version of the device in
all cases. For example, if you download a more recent firmware version from the internet,
the following description may no longer be accurate in every point.
In this case, either contact us directly or refer to the most recent version of the operating
manual, available on our website (www.kbr.de).
KBR GmbH
Am Kiefernschlag 7
D-91126 Schwabach
Tel.: 09122 / 6373-0
Fax: 09122 / 6373-83
E-Mail [e-mail]
Internet: www.kbr.de
KBR GmbH cannot be held liable for any damage or losses, resulting from printing errors
or changes to this operating manual.
Furthermore, KBR GmbH does not assume responsibility for any damage or losses resulting
from defective devices or from devices altered by the user.
Copyright 2023 by KBR GmbH
All rights reserved.

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Table of Contents
1. User Guidance .................................................................................................................5
1.1 Target group..............................................................................................................................5
1.2 Warnings ...................................................................................................................................5
1.3 Tips ............................................................................................................................................5
1.4 Other Symbols...........................................................................................................................6
1.5 Applicable documentation ........................................................................................................6
1.6 Keeping......................................................................................................................................6
1.7 Updated documentation ...........................................................................................................6
2. Safety Instructions...........................................................................................................7
2.1 Safety instructions.....................................................................................................................7
2.2 Meaning of the symbols used on the device.............................................................................8
3. Scope of Delivery/Order Codes multilog 3 ........................................................................9
3.1 Scope of Delivery.......................................................................................................................9
3.2 Order Codes ..............................................................................................................................9
3.3 Technical data .........................................................................................................................11
4. Accessories for current measurement ............................................................................13
4.1.1 Rogowski current clamps ........................................................................................................13
4.1.2 Current clamps ........................................................................................................................14
4.1.3 Accessories for current measurement ....................................................................................16
5. Intended use .................................................................................................................17
6. Description....................................................................................................................17
7. Hardware multilog 3......................................................................................................18
7.1 multilog 3 Hardware................................................................................................................18
7.2 Accumulator ............................................................................................................................20
8. Network connection multilog 3......................................................................................21
8.1.1 Direct connection to a 3-phase low voltage network .............................................................21
8.2 Connection to a single-phase low voltage network ................................................................22
8.3 Connection to an isolated IT network .....................................................................................23
8.4 Connection to secondary transformer ....................................................................................24
8.5 Special circuit types .................................................................................................................25
8.6 Starting a measurement ..........................................................................................................26
8.7 Memory management.............................................................................................................26
8.8 Delete device memory ............................................................................................................26
8.9 Storage requirements for measurement data.........................................................................26
8.10 WLAN multilog 3 .....................................................................................................................27

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9. multilog 3 App...............................................................................................................28
9.1 Connection to multilog............................................................................................................28
10. Maintenance/Cleaning...................................................................................................29
11. Calibration ....................................................................................................................29
12. Disposal ........................................................................................................................29
13. Product Warranty..........................................................................................................30

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1User Guidance
1.1 Target group
The User Manual is intended for skilled technicians as well trained and certified operators.
The contents of this User Manual must be accessible to people tasked with the installation
and operation of the system.
1.2 Warnings
Structure of the warnings
Warnings are structured as follows:
SIGNAL
WORD
Nature and source of the danger.
Consequences of non-compliance.
0 Actions to avoid the danger.
Types of warnings
Warnings are distinguished by the type of danger they are warning against:
DANGER! Warns ofimminent danger that can result in death or serious injuries
if not avoided.
WARNING! Warns ofa potentially dangerous situation that can result in death or
serious injuries when not avoided.
CAUTION! Warns
of a potentially dangerous situation that can result in
fairly serious or minor injuries when not avoided.
NOTICE: Warns ofa potentially dangerous situation that if not avoided
could result in material or environmental damage.
1.3 Tips
Tips on the appropriate device use and recommendations.

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1.4 Other Symbols
Instructions
Structure of instructions:
Guidance for an action.
→Indication of an outcome, if necessary.
Lists
Structure of unnumbered lists:
0 List level 1
– List level 2
Structure of numbered lists:
1) List level 1
2) List level 1
1. List level 2
2. List level 2
1.5 Applicable documentation
For the safe and correct use of the product, observe the additional documentation that is
delivered with the system as well as the relevant standards and laws.
1.6 Keeping
Keep the user manual, including the supplied documentation, readily accessible near the
system.
1.7 Updated documentation
The most recent versions of the documents can be obtained
at
https://www.kbr.de

2.
Safety Instructions
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2.1 Safety instructions
Follow the operating instructions.
Keep the operating instructions with the device.
Ensure that the device is operated only in a perfect condition.
Never open the device.
When opening the battery compartment, disconnect the power supply.
Ensure that only qualified personnel operate the device.
Connect the device only as specified.
Ensure that the device is operated only in the original condition.
Connect the device only with recommended accessories.
Ensure that the device is not operated outside the design limits. (See the technical data)
Ensure that the original accessories are not operated outside the design limits.
For measurements in short circuit resistant systems, ensure that voltage taps with integrated fuses
are used.
Do not use the device in environments where explosive gases, dust or fumes occur.
Clean the device only with commercially available cleaning agents.
DANGER! Danger to life due to electric shock!
If the device is used in a way not specified by the equip-
ment producer, the device protection will be impaired.
Observe safety instructions

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2.2 Meaning of the symbols used on the device
Nature and source of the danger! Read the safety instructions inside the manual!
Voltage ground
USB-interface
CE marking guarantees compliance with the European directives and regulations regarding EMC
The unit is fully protected by double or reinforced insulation.
IP65
6X = Protection against dust
Protection against water X5 = Protection against water jets from any angle
AC voltage
DC voltage
CAT IV
Category IV

3.
Scope of Delivery/Order Codes multilog 3
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3.1 Scope of Delivery
0 multilog 3
0 User Manual
0 Case
0 3 red dolphin clips, 1 blue dolphin clip, 1 green dolphin clip
0 3 high-load fuses integrated in voltage leads
0 USB cable
0 2 voltage leads for integrated wide range power supply with 2 x 4 mm safety plugs and
integrated high-load fuses
3.2 Order Codes
The multilog 3 is available in different versions:
1 multilog 3 basic
The device is suitable for performance analyses for energy audits according to ISO 50001, as a data logger for
troubleshooting and for online measurements.
1 multilog 3 light
This version is equipped with manual trigger option for oscilloscope and ½ cycle RMS records. Standard evaluations
according to EN50160, IEC61000-2-2/2-4 for public and industrial power systems are automatically generated.
1 multilog 3 expert
This version is additionally equipped with comprehensive trigger functions for oscilloscope
and ½ cycle RMS records.
With a licence code, the multilog 3 can be upgraded, B1 light or B2 expert.

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Performance
multilog 3
basic
light
expert
Statistic EN50160/IEC 61000-2-2/IEC 61000-2-4 x x
PQ-events x x
Recording free interval (1sec…30min): x
Voltage: min. max. average x x x
Current: min. max. average x x x
Power: P, Q, S, PF, cos phi, sin phi, tan phi
x
x
x
Distortion power D
x
x
x
Energy: P, Q, P+, P-, Q+, Q- x x x
Flicker according IEC61000-4-15 (2010) (Pst, Plt,Ps5) x x x
Unbalanced voltage, current x x x
Voltage harmonics up to 50th up to 50th
Voltage harmonics extreme values 200ms x
Current harmonics up to 50th up to 50th
Current harmonics extreme values 200ms x
Phase angle of current and voltage harmonics x
Real, apparent and reactive power of harmonics
x
THD voltage, current; PWHD, PHC
x
x
x
Inter harmonics – voltage, current DC to 10 kHz
Ripple control signal
x
x
Frequency: min. max. average x x x
Power / Energy Interval
10/15/30 min interval – Voltage, P, Q, S, D, cos phi, sin phi … x x x
Online mode:
Oscilloscope recorder x x x
½ cycle RMS recorder x x
Voltage & current harmonics, inter harmonics x x
FFT spectrum (U, I) DC to 10kHz
Direction of harmonics x
Trigger options:
½ cycle RMS recorder ( U, I, P, Q, S, frequency)
x
Oscilloscope recorder ( U, I) x
Phase shift trigger, wave shape trigger
x
Interval-trigger
x
Automatic trigger x
With a licence code, the multilog 3 can be upgraded from lower version to a higher version.

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3.3 Technical data
multilog 3 (4U/4I)
4 voltage inputs (AC/DC):
Maximum input voltage:
L1, L2, L3, N, E;
DC 848V ⎓
AC 1039V/600V ~
1.2 MΩ impedance
4 current inputs (AC/DC): 1000 mV input for mini
clamp and 330 mV for
Rogowski coils
15 kΩ impedance
Sampling rate: 20.48 kHz at 50 Hz/60 Hz
Automatic
synchronization to
fundamental oscillation:
45 Hz to 65 Hz
Measurement intervals: Freely adjustable from 1 s
to 30 min
+ 10/15/30 min
Data memory: 1 GB
Interfaces: WLAN/WiFi, USB
Time synchronization: NTP with WLAN
Dimensions: 220 x 110 x 40 mm
Mass: 1 kg
Degree of protection: IP65
IEC 61000-4-30 Ed.3: Class A
Accuracy: < 0,1 %
Insulation class: CAT IV / 600 V
Insulation test Impulse voltage =
12,8 kV
5 sec = 7,4 kV rms
A/D converter: 16 Bit
Climate/temperature
proof:
Function: -20° ….45°C
Storage: -30°….80°C
Power supply: AC 100 V…440 V ~
OVC IV 50/60Hz;
180..80mA oder
DC 100 V...250 V ⎓;
105…35mA
440V CAT IV
EMC
CE- conformity
0 Interference
immunity
– EN 61326
– EN 61000-6-2
0 Emittedinterference
– EN 61326
EN 61000-6-4
ESD
IEC 61000-4-2
IEC 60 255-22-2
8 kV / 16 kV
Electromagnetic fields
IEC 61000-4-3
IEC 60 255-22-3
10 V/m
Burst
IEC 61000-4-4
IEC 60 255-22-4
4 kV/2 kV
Surge
IEC 61000-4-5
2 kV/1 kV
HF conducted
disturbances
– IEC 61000-4-6
10 V, 150 kHz … 80 MHz
Voltage dips
– IEC 61000-4-11 100 % 1 min
0
Housing
at a distance of 10 m
0 AC supply connection
at a distance of 10 m
30...230 MHz, 40 dB
230...1000 MHz, 47 dB
0.15. 0.5 MHz, 79 dB
0.5. 5 MHz, 73 dB
5...30 MHz, 73 dB

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Measurement quantity
Error limits according IEC 61000-4-30, Class A
Fundamental oscillation: r.m.s.
±0.1% of U
din
over 10% ~ 150% of Udin
Fundamental oscillation: Phase
± 0.15°
over 50% ~ 150% of Udin
over fnom ±15%
2nd ... 50th harmonic
±5% of display over U
m
= 1% ~ 16% of U
din
±0.05% of Udin over Um < 1% of Udin
2nd ..... 49th interharmonic
±5% of display over U
m
= 1% ~ 16% of U
din
±0.05% of Udin over Um < 1% of Udin
Frequency
± 5mHz over f
nom
±15% (f
nom
= 50 Hz / 60 Hz)
Flicker, Pst, Plt
±5% of display over 0.02% ~ 20% of ∆U / U
Dip residual voltage
±0.2% of U
din
over 10% ~ 100% of U
din
Dip duration
±20 ms over 10% ~ 100% of U
din
Swell residual voltage
±0.2% of U
din
over 100% ~ 150% of U
din
Swell duration
±20 ms over 100% ~ 150% of U
din
Interruption duration
±20 ms over 1% ~ 100% of U
din
Voltage asymmetry
±0.15% over 1% ~ 5% of display
Ripple control voltage
±5% of display over U
m
= 3% ~ 15% of U
din
±0.15% of Udin over Um = 1% ~ 3% of Udin

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4. Accessories for current measurement
- Standard accessories are automatically recognized by the meter.
- The conversion factor is automatically adjusted for the connected accessory.
4.1.1 Rogowski current clamps
1 Rogowski current clamp 4~: Up to 3000 A
1 Rogowski current clamp 4~: Up to 6000 A
Model
Up to 3000 A Pro Flex 3000 4~
Up to 6000 A Pro Flex 6000 4~
Current range
3,000 A AC RMS
6,000 A AC RMS
Measurement range
0-3300 A AC RMS
0-6,600 A AC RMS
Output voltage
85 mV / 1000 A
42.5 mV / 1000 A
Frequency range
10 Hz to 20 kHz
10 Hz to 20 kHz
Isolation voltage type
600 V AC / DC CAT IV
600 V AC / DC CAT IV
Accuracy
(20 °; 50 Hz)
<50 A/0.1 % of the full scale value
50-3000 A/1.5 % of the measured
value
<100 A/0.1 % of the full scale value
100-6000 A/1.5 % of the measured
value
Angle error
(45-65 Hz)
<50 A/2.5 °
50-3000 A/1 °
<100 A/2.5 °
100-6000 A/1 °
Position accuracy
<50 A/0.2 % of the full scale value
50-3000 A/1.5% of the measured
value
<100 A/0.1 % of the full scale value
100-6000 A/1.5% of the measured
value
Long Rogowski coils
610 mm
910mm
Diameter clamp head
9,9mm
9,9mm
1 Mini- Rogowski current clamp 4~: Ident-No. Up to 500 A
Current range: 500A RMS; Accuracy: 1%
Rogowski clamp length = 220mm;
Diameter = 70mm; Rogowski clamp head = 6mm
Frequency range: 10Hz to 50kHz

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4.1.2 Current clamps
The MU-metal clamp is especially applicable for small current measurements on secondary transformers
in medium- and high-voltage networks. High accuracy and small angle errors are combined.
1 Mu-Metal Mini-Current clamps 3~: Up to 20 A
Current range: 10mA to 20A
Frequency range: 40Hz to 20kHz
1 Mu-Metal Mini-Current clamps 4~: Up to 20/200 A
Up to 20/200 A
Measurement range
20 A measurement range
200A measurement range
Current range
20 A AC RMS
200 A AC RMS
Measurement range
100 mA to 20 A RMS
1 A to 200 A RMS
Output voltage
10 mV/A
1 mV/A
Frequency range
40 Hz to 20 kHz
40 Hz to 20 kHz
Isolation voltage type
600 V AC
600 V AC
Accuracy
100 mA- 10 A/1.5 % of the meas-
ured value
10-20 A/1 % of the measured value
>20 A/1% of the measured value
10-40 A/<2 % of the measured value
40-100 A/<1.5 % of the measured value
100-200 A/<1 % of the measured value
Angle error
100 mA- 10 A/2 °
10-20 A/2°
>20 A/2°
10-40 A/<2 °
40-100 A/<1.5 °
100-200 A/<1 °
200 A Measurement range up to 20/200 A
Adjustment of the power converter factor to x10. For the clamp with two ranges the
automatic factor detection of the multilog 3 does not work for the second.

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1 Mu-Metal Mini-Current clamp 0…5A 1~: Up to 5 A
Current range: 5mA to 5A AC RMS
Frequency range: 40Hz to 20kHz
Free current adapter set necessary
1 AC/DC Current clamp 1~: AC/DC up to 60/600 A
AC/DC hall sensor clamp. Set with power supply and 2 pcs. 4mm connectors
Current range 60A/600A (two ranges)
AC/DC up to 60/600 A
Measurement range
AC/DC 60 A
AC/DC 600 A
Current range
60 A DC / 40A AC RMS
600 A DC / 400A AC RMS
Measurement range
200 mA to 60 A RMS
600 A RMS
Output voltage
10 mV/A
1 mV/A
Frequency range
DC to 10 kHz
DC to 10 kHz
Isolation voltage type
Accuracy
0.5-40 A/<1.5 % +5 mV
0.5-100 A/<1.5 % +1 mV
40-60 A/1.5 %
100-400 A/<2 %
400-600 A(DC only)/<2.5 %
Angle error
10-20 A/<3 °
10-300 A/<2.2 °
20-40 A/<2.2 ° 300-400 A/<1.5 °
600 A Measurement range (AC/DC)
Adjustment of the power converter factor to x10

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4.1.3 Accessories for current measurement
1 Free Adapter set for connecting 4 clamps:
Adapter set for connecting 4 clamps or shunt with 4mm connectors. 2m length
CAUTION! Damage to the device from external current clamps

Do not use clamps with A or mA output
Avoid input voltages at the current inputs greater than 30 V
Example:
Power conversion factor
Current conversion correction factor; the default is 1 A/10 mV
If you use a current clamp with a 500 A to 500 mV range, it is necessary to change the CT ratio in the
setup of the device to “10x”.
1 Current clamp cable extension:
Cable extension 5 m for current clamps or Rogowski coils.
1 Current-shunt 2A:
Measurement of AC- and DC-currents. Current range = 2A / 200mV output signal

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5. Intended use
The product is exclusively designed for the measurement and evaluation of voltages and currents. The
current inputs are mV-inputs.
Observe safety instructions
Ensure that the device is not operated above the rated data
6. Description
The Network Analyzer multilog 3 is suitable for analysis in low, medium and high-voltage networks. It
meets all the requirements of the measurement equipment standard IEC61000-4-30 Ed. 3 class A.
Functions:
→Voltage quality measurements according to EN50160, IEC61000-2-2 and IEC61000-2-4 for
low and medium voltage networks
→Fault recorder functions
→Load analyses; energy measurements
→Ripple control signal analysis

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3) 2 leads power supply + reference earth
Stackable to voltage leads
7. Hardware multilog 3
7.1 multilog 3 Hardware
WLAN/Wifi Interface
1) 5 voltage leads fix connected:
L1 (red - L1)
L2 (red - L2)
L3 (red - L3)
N (blue - N)
Earth (green - E)
USB interface
Measurement
Start/ Stopp
2) input for 4 current clamps
1) 4 voltage leads
L1, L2, L3, N
The housing cover can be opened by the user.
Here is a battery pack.
This can be exchanged by the user if necessary.

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DANGER! Danger to life due to electric shock!
The maximum voltage of the reference earth (green) must not exceed
the requirement of 600V against earth
Ensure that the device is not operated above the rated data
CAUTION! Damage to measurement voltage with overvoltage
Connect device to maximum DC voltage of 565V AC / 800V DC L-N.
Connect device to maximum AC voltage of 980V AC / 1380V DC L-L.
2) Current clamp connection (Amphenol plug 7-pole)
3) The multilog 3 is equipped with an internal extremely robust wide-range power supply.
The power supply is designed for the high immunity of 300V CAT IV and complies with the pro-
tection class IP65.
The PQ box can be supplied with energy directly at the measuring point via this adapter and
does not require a separate socket.
The following voltage ranges for the mains supply are possible: 88 V ... 500 V AC or
100V ... 300V DC
High-voltage fuses are installed in both measuring lines. These can be exchanged by the user.
CAUTION! Damage to power supply due to under- or overvoltage
Only power the device between 88V and 500V AC.
Only supply power between 100 and 300 V DC.
Do not supply the device directly from strongly disturbed voltages.
(eg. at the frequency inverter output / Caution high clock frequencies
can destroy the internal power supply)
DANGER! Danger to life due to electric shock!
Only fuse 6.3mm x 32mm, 3 A F, with a breaking capacity of
50kA/600V may be used in the fuse carrier. Only fuses with the
identical data may be used.
Make sure that the fuses used comply with the specifications.

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LED Status
0 Off
Device turned off.
0 Continuous
green
Ready for Push-Button.
0 Continuous
orange
Command processing.
LED Record
0 Off
Messung nicht gestartet.
0 Flashing
green
Recorder running.
0 Continuous
green
Memory full.
Recorder is stopped!
Front panel picture – keypad
1 LED display
Measurements are started and stopped via a "Start / Stop" button. If a recording
has been started, this will be indicated by a flashing recorder LED.
WLAN Status
0 Off
Device is ready for connection
0 Continuous
green
multilog 3 is connected to a
device via WLAN.
Many measurements can be recorded one after the other without having to read the instrument be-
forehand. A glowing WLAN icon indicates if this interface is active and accessible.
7.2 Accumulator
The multilog 3 is equipped with a lithium-ion battery and intelligent charging electronic.
The aim is to achieve a long battery life time. At 80% capacity, the PQ-Box can run approximately
2 hours without mains supply.
The Li-ion battery is first charged to 100% when the threshold (75%) is reached. This has a very positive
effect on the total life time of the batteries.
Aging: At high temperature and the battery is full, the cell oxidation developed particularly rapidly. This
condition may occur, f. e. in notebooks when the battery is fully charged and at the same time, the de-
vice is in operation. The optimal charge level is between 50% and 80% during storage.
– Charging stops when exceeding a battery temperature of 50 ° C
– Start charging only when the battery temperature is less than 45 ° C
– Warning Battery capacity below 7%
– multilog 3 shutdown when battery capacity <5%
We recommend storing the battery of the PQ-Box at 15 ° C with a charge of 60% - this is a
compromise between accelerated aging and self-discharge. The battery of the multilog 3
should be recharged to approximately 55-75% every six months, due to the natural self-
discharge, in order to ensure a long-term service life.