Iskra PNA760 User manual

Table of Contents
User’s Manual 1

Quick Guide
Portable Network Analyzer PNA760 - Quick Guide
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

Table of Contents
Portable Network Analyzer PNA760 - Quick Guide
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Table of Contents
Meaning of symbols    see page 4!
1 SECURITY ADVICE AND WARNINGS ...................................................................... 1
1.1 Welcome .................................................................................................................................. 1
1.2 ntroduction ............................................................................................................................. 1
1.3 Health and safety .................................................................................................................... 1
1.4 Safety warnings and instructions for use ................................................................................. 1
1.5 Warnings, information and notes regarding designation of the product ................................ 3
2 BASIC DESCRIPTION AND OPERATION OF ANA YZER ............................................ 4
2.1 ntroduction ............................................................................................................................. 4
2.2 Description of the product ....................................................................................................... 5
2.3 Meter functionality .................................................................................................................. 6
3 CONNECTION ........................................................................................................ 9
3.1 ntroduction ............................................................................................................................. 9
3.2 Electric connection ................................................................................................................... 9
3.3 Connection of tariff inputs ..................................................................................................... 12
3.4 Connection of communication ............................................................................................... 12
4 BATTERY REP ACEMENT ..................................................................................... 14
5 MORE DATA........................................................................................................ 16

Security advice and warnings
Portable Network Analyzer PNA760 - Quick Guide
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1 SECURITY ADVICE AND WARNINGS
1.1 Welcome
Please read this chapter carefully before starting work with a Analy er.
This chapter deals with important information and warnings that should be considered for safe
work with a Analy er.
1.2 Introduction
These instructions for use are written for the PNA 760 Portable Network Analy er (hereinafter
referred to as Analy er).Installation and use of devices also includes work with dangerous currents
and voltages, therefore such work shall be carried out by qualified persons. The ISKRA Sistemi
Company assumes no responsibility in connection with installation and use of the product. If there
is any doubt regarding installation and use of the system in which the instrument is used for
measuring or supervision, please contact a person who is responsible for installation of such
system.
1.3 Health and safety
The purpose of this chapter is to provide a user with information on safe installation and handling
with the product in order to assure its correct use and continuous operation.
We expect that everyone using the product will be familiar with the contents of chapter »Security
Advices and Warnings«.
If equipment is used in a manner not specified by the manufacturer, the protection provided by the
equipment may be impaired.
1.4 Safety warnings and instructions for use
Check the following before switching on the device:
Nominal voltage,
Supply voltage,
Nominal frequency,
Voltage ratio and phase sequence,
Battery replacement
At meters that are provided with built-in batteries, it is necessary to replace them with a
corresponding type (Varta, type 6032 CR2032 SLF or equivalent). A battery shall be replaced by an
authori ed service. The battery lifetime is approx. 6 years. Instruction on battery replacement is
given in chapter 4: Battery replacement, page 14.

Security advice and warnings
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Portable Network Analyzer PNA760 - Quick Guide
Warning for the Analyzer connection and disconnection
- Before use, check the Analy er, measuring voltage connection wires and accessories visually
and make sure that there are no visible damages before use. Replace damaged measuring
voltage connection wires and accessories with new ones of the same quality. Use only insulated
current probes, safety measuring voltage connection wires and safety alligator clip terminals
that are equal to those enclosed to the Analy er.
- For earthing the Analy er, use a special input terminal and do not connect live parts.
- Do not connect input voltages that exceed values specified for the Analy er. Maximum
permitted voltage on safety voltage terminals towards ground:
Input L1, L2, L3, N towards GND is 300 V Cat III.
- When mounting flexible current probes and safety measuring voltage connection wires with
safety alligator clip terminals to the measuring object be careful to disconnect power supply on
non-insulated conductors or use corresponding protection equipment (gloves, etc.) If possible,
don't work alone.
- Don't use the Analy er near explosive gasses and vapours.
- Don't insert metal parts in safety connection terminals and connectors.
Waste
It is forbidden to deposit electrical and electronic equipment as municipal waste. The manufacturer
or provider shall take waste electrical and electronic equipment free of charge. The complete
procedure after lifetime should comply with the Directive EZ 2002/96/EG about restriction on the
use of certain ha ardous substances in electrical and electronic equipment or a corresponding Url
118/04.

Security advice and warnings
Portable Network Analyzer PNA760 - Quick Guide
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1.5 Warnings, information and notes regarding designation of the product
Used symb ols:
See product documentation..
Double insulation in compliance with the SIST EN 61010−1: 2004
standard.
Functional ground potential.
Note: This symbol is also used for marking a terminal for protective
ground potential if it is used as a part of connection terminal or auxiliary
supply terminals.
Compliance of the product with directive 2002/96/EC, as first priority,
the prevention of waste electrical and electronic equipment (WEEE),
and in addition, the reuse, recycling and other forms of recovery of such
wastes so as to reduce the disposal of waste. It also seeks to improve
the environmental performance of all operators involved in the life
cycle of electrical and electronic equipment
Skladnost i delka evropskimi smernicami CE.
The delivery includes:
₋ PNA 760 Portable Network Analy er
₋ 5 safety measuring voltage connection wires
₋ 5 safety alligator clip terminals
₋ Axxxx flex current clamps
₋ USB cable
₋ Ethernet cable
₋ RS 232 cable
₋ MiQen software on CD
₋ Connection cable
₋ Short instructions for PNA 760
₋ Detailed instructions for use of UMC 760

Basic description and operation of Analyzer
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Portable Network Analyzer PNA760 - Quick Guide
2 BASIC DESCRIPTION AND OPERATION OF ANA YZER
2.1 Introduction
Description of symbols
In different chapters or tables different symbols may appear in User’s Manual. According to the
position of symbols, they have different meaning.
Chapter
Meaning of each symbol is:
 − Function not supported
 − Function partially supported (see a note)
 − Function completely supported
Positions follow from left to right:
Subchapter
Symbols next to the subchapters indicate accessibility of functions described. Accessibility of
functions is indicated with the following symbols:
− Function accessible via communication (MiQen software)
− Function accessible via an MMC card
− Function accessible via navigation keys on the instrument front side
Tables
Supported functions and measurements are listed in tables for all types. Symbols in tables indicate
support of enabled functions for each type. Additionally a legend is placed below table of used
symbols. Meaning of symbols is:
● − Function is supported
× − Function is not supported
○ − Symbol meaning varies and is described in the legend below the table
User information
For all unknown technical words see chapter Glossary on next page.

Basic description and operation of Analyzer
Portable Network Analyzer PNA760 - Quick Guide
2.2 Description of the product
Analy er is used for measuring, analy ing and monitoring three phase electrical power network.
Using the latest technologies and numerical methods we have reached high accuracy over a wide
measuring range of current and integrated quantities.
Appearance
1 − Graphical LCD
2 − Navigation keyboard
3 − A slot with a cover for MMC
4 − LED indicators
Graphical LCD
A graphical LCD with back light is used for high resolution of displayed measuring quantities and for
a display of selected functions when setting the device.
Navigation keyboard
The "OK" key is used for confirming the settings, selecting and exiting the display. Direction keys
are used for shifting between screens and menus.
A slot with a cover for MMC
The meter is provided with a slot for a full si e MMC card that is used for data transfer from the
internal memory, meter setting and software upgrading. A slot protection cover for the MMC card
prevents penetration of humidity and dust into device.
LED indicators
LED indicators warn of a certain state of the instrument. A left (red) indicator indicates the MMC
card activity and that it should not be pulled out. A middle (green) one is blinking when
transmitting MC data via communication. A right (red) one is blinking when the condition for the
alarm is fulfilled.

Basic description and operation of Analyzer
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Portable Network Analyzer PNA760 - Quick Guide
2.3 Meter functionality
Hardware
Feature PNA760
Graphical LCD display ●
Back light of LCD display ●
LED indicator (MMC/com./alarm) ●/●/●
Slot for MMC card ●
Control keys on front panel (5) ●
Internal flash memory 8Mb
Real time clock (RTC) with battery ●
Communication interface RS232, Ethernet, USB ●/●/●
Automatic voltage range ●
Automatic current range ●
AC or universal supply ●
● – serial × − not supported
Software functions
Functions PNA760
Basic
Setup wi ard ●
Wrong connection warning ●
Custom screens (3) ●
Demonstration screen cycling ●
Programmable refresh time ●
Additional
MODBUS and DNP3 protocols ●
Tariff clock ●
MD calculation (TF, FW, SW) ●/●/●
Programmable alarms (32) ●
Alarms recording ●
Measurements recording ●
Measurements graphs (time/FFT) ●/●
Evaluation of voltage quality in compliance with SIST EN 50160 ●
● – serial × − not supported
*
PNA760 support harmonic analysis up to 63
rd

Basic description and operation of Analyzer
Portable Network Analyzer PNA760 - Quick Guide
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Supported measurements
Basic measurements PNA760
Phase
Voltage U
1
, U
2
, U
3
and U
~
●
Current I
1
, I
2
, I
3
, I
n
, I
t
and I
a
●
Active power P
1
, P
2
, P
3
, and P
t
●
Reactive power Q
1
, Q
2
, Q
3
, and Q
t
●
Apparent power S
1
, S
2
, S
3
, and S
t
●
Power factor PF
1
, PF
2
, PF
3
and PF
~
●
Power angle φ
1
, φ
2
, φ
3
and φ
~
●
THD of phase voltage U
f1
, U
f2
and U
f3
●
THD of power angle I
1
, I
2
and I
3
●
Phase-to
phase
Phase
-
to
-
phase voltage U
12
, U
23
, U
31
●
Average phase-to-phase voltage U
ff
●
Phase
-
to
-
phase angle φ
12
, φ
23
, φ
31
●
Voltage unbalance U
u
●
THD of phase
−to−phase voltage
●
Energy
Counter 1 ●
Counter 2
●
Counter 3
●
Counter 4 ●
Total
●
Active tariff ●
Cost by counters
●
Total cost
●
● – serial × − not supported
Other measurements PNA760
Min / Max
Voltage U
1
, U
2
, U
3
●
Phase-to-phase voltage U
12
, U
23
, U
31
●
Phase current I
1
, I
2
, I
3
●
Active power P
1
, P
2
, P
3
, P ●
Apparent power S
1
, S
2
, S
3
, S
●
Frequency f ●
Internal temperature ●
MD values
Phase current I
1
, I
2
, I
3
●
Active power P (Positive) ●
Active power P (Negative) ●
Reactive power Q − L ●
Reactive power Q − C ●
Apparent power S ●
● – serial × − not supported

Basic description and operation of Analyzer
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Portable Network Analyzer PNA760 - Quick Guide
Other measurements PNA760
Measurement
Frequency ●
Internal temperature ●
Date & Time ●
Time graphs (I
1
, I
2
, I
3
,U
1
, U
2
, U
3
, U
12
, U
23
and U
31
) ●
FFT graphs (I
1
, I
2
, I
3
,U
1
, U
2
, U
3
, U
12
, U
23
and U
31
) ●
Phase voltage harmonics ●
Phase−to−phase voltage harmonics ●
Current harmonics ●
Analysis in compliance with SIST EN 50160 ●
● – serial × − not supported
*
PNA760 support harmonic analysis up to 63
rd

Connection
Portable Network Analyzer PNA760 - Quick Guide
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3 CONNECTION
3.1 Introduction
This chapter deals with the instructions for Analy er connection. Both the use and connection of
the device includes handling with dangerous currents and voltages. Connection shall therefore be
performed by a qualified person. ISKRA Sistemi does not take any responsibility regarding the use
and connection. If any doubt occurs regarding connection and use in the system which device is
intended for, please contact a person who is responsible for such installations.
Before use: Check voltages and phase rotation, supply voltage and nominal frequency.
Check protective fuse rating (the recommended maximum rating of the external protective fuse for
this equipment is 6A - Red Spot type or equivalent).
Warning!
Wrong or incomplete connection of voltage or other terminals can cause non-
operation or damage of the device.
Note
After connection, settings have to be performed via a keyboard on the front side
of the Analy er that reflect connection of device to voltage network (connection
mode, current and voltage transformers ratio, …). Settings can also be done via
communication or an MMC card.
Remove protection foil from a display.
3.2 Electric connection
Connection
If possible, switch off a measuring object. Always consider safety instructions and avoid working
alone.
Apply auxiliary power supply and choose 4u connection for the connection in four-wire three-phase
system. Choose a primary side of a current range on the Analy er. There are three current ranges
and they refer to Axxxx flex current clamps. They can be entered by means of the keys on the
Analy er or with a programme via PC (see chapter 5 (Settings) in »Instructions for use of MC760«).
Choose the same current range for Axxxx flex current clamps as for the Analy er. Choose a current
range by pressing a blue key. The selected measuring range is indicated with a red LED on the
Axxxx flex current clamps interface. Move within measuring ranges by pressing a blue key. To
switch off Axxxx flex current clamps, keep pressing a blue for 5 seconds. The Analy er is adapted to
Axxxx flex current clamps, therefore no other clamps may be used, otherwise the Analy er could
be damaged.
Connect wires and flex current clamps in a three-phase system in compliance with figure 3.3.

Connection
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Portable Network Analyzer PNA760 - Quick Guide
First connect the earth terminal to the Analy er and connect it with the earth terminal on a
measuring object.
Then connect supply for Axxxx flex current clamps. A supply output from the Analy er for Axxxx flex
current clamps is provided below the inscription CLAMPS VDC. Connect this output with input for
supplying Axxxx flex current clamps by means of the enclosed connection cable. Then connect
current terminals of Axxxx flex current clamps to current terminals on the Analy er. Designations
I1, I2, I3 are provided on connectors of Axxxx flex current clamps, and also above input terminals of
the Analy er. Connect a connector of Axxxx flex current clamps I1 to the Analy er input terminal I1.
Connect a connector of Axxxx flex current clamps I2 to the Analy er input terminal I2. Connect a
connector of Axxxx flex current clamps I3 to the Analy er input terminal I3.
Embrace the L1 phase conductor with I1 flex current clamps.
Embrace the L2 phase conductor with I2 flex current clamps.
Embrace the L3 phase conductor with I3 flex current clamps.
Flex current clamps are provided with an arrow indicating energy direction. If connection is wrong,
displayed power on the Analy er is negative.
Check that current clamps are clamped well, otherwise the measurement will not be correct.
Perform voltage connections. First connect an N neutral terminal and then also phases L1, L2, L3.
Always connect a measuring voltage connection wire to a measuring terminal on the Analy er and
only then connect the measuring object. Use only enclosed safety measuring voltage connection
wires.
To disconnect the Analy er from the measuring object use the opposite order. First disconnect
measuring voltage connection wires from the measuring object and only then from the Analy er.
Then remove Axxxx flex current clamps from the measuring object. Hold down a blue key for 5
seconds in order to switch off Axxxx flex current clamps. Then disconnect a cable for supplying
Axxxx flex current clamps. At the end, disconnect Axxxx flex current clamps from the Analy er
terminals. Switch off the Analy er auxiliary power supply.
Single-phase measurements
For a single-phase connection, use only current I1, voltage L1, neutral conductor N and earthing.
The connection procedure is equal to three-phase connection; the only difference is that one phase
is connected in this case. Choose 1b connection by means of the keys on the Analy er.

Connection
Portable Network Analyzer PNA760 - Quick Guide
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Choose a corresponding meter connection from the figures below and connect voltage and current
conductors.
Picture 3.1
Connection 1b (1W);
Single-phase connection
Picture 3.2
Connection 3u (2W3)
Three-phase – three-
wire connection with
unbalanced load

Connection
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Portable Network Analyzer PNA760 - Quick Guide
Picture 3.3
Connection 4u (3W4)
Three-phase – four-wire
connection with
unbalanced load
3.3 Connection of tariff inputs
Note
Frequency of the tariff input voltage signal should not essentially deviate from
the frequency of the measuring input signal. At no signal on the measuring inputs
the tariff triggering is not reliable.
Connect a tariff input for the inspection of two tariffs to the terminals below the inscription Tariff
input T1/2 and C.
3.4 Connection of communication
A type of the terminal intended for communication depends on the selected meter
communication. For RS232 communication a DB9 terminal is used, for Ethernet communication a
RJ−45 terminal is used and for USB terminal an USB B type MNT is used.
1 Connect a communication line by means of a corresponding terminal.
RS232
RS232 communication is intended for direct connection of the Analy er to the personal computer.
Ethernet
Ethernet communication is used for connection of device to Ethernet network for remote
inspection.

Connection
Portable Network Analyzer PNA760 - Quick Guide
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USB
USB communication serves as a fast peer-to-terminal data link. The instrument is detected by host
as a USB 2.0 compatible device. The USB connection is provided through a USB standard Type B
connector.
Note
When PNA760 is connected to a PC through USB communication for the first
time, a user is prompted to install a driver. The driver is provided on the CD,
enclosed in the original shipment package, or can be downloaded from the Iskra
Sistemi web page www.iskrasistemi.si. With this driver installed, USB is
redirected to a serial port, which should be selected when using MiQen software.
Survey of communication connection
Connector
Terminals Position
Data direction Description
RS232 DB9
1 Not connected −
2 From Data transmission (Tx)
3 To Data reception (Rx)
4 Not connected −
5 − Grounding ()
6 Not connected −
7 − Do not connect!
8 − Do not connect!
9 Not connected −
Ethernet
RJ−45
1 From Data transmission (TD+)
2 From Data transmission (TD−)
3 To Data reception (RD+)
4 Not connected −
5 Not connected −
6 To Data reception (RD−)
7 Not connected −
8 Not connected −
USB USB-B
Standard USB 2.0 compatible cable recommended
(Type B plug)

Battery Replacement
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Portable Network Analyzer PNA760 - Quick Guide
4 BATTERY REP ACEMENT
The Analy er contains a lithium battery. It is used to preserve data (date and time) in the device
memory when if the power supply is off. Life time of battery is app.6 years (typical). High
temperature and humidity shortens the battery's functionality. When the battery is expired and the
power supply was interrupted, flashing battery indicator appears in the up-right corner of the
display (before that it is not visible). Battery has no effect on other functionality of the device,
except date and time.
Flashing battery indicator:
It is recommended that the instrument is sent back in the factory for battery replacement.
Although it is possible that replacement is made by the qualified person, but in this case ISKRA
Sistemi does not take on responsibility for any injuries, dysfunction of the instrument.