Elcontrol VIP MK3 User manual

Form 080/01
Complimentary Reference Material
This PDF has been made available as a complimentary service for you to assist in
evaluating this model for your testing requirements.
T G offers a wide range of test equipment solutions, from renting short to long
term, buying refurbished and purchasing new. Financing options, such as
Financial Rental, and Leasing are also available on application.
T G will assist if you are unsure whether this model will suit your requirements.
Call T G if you need to organise repair and/or calibrate your unit.
If you click on the “Click-to-Call” logo below, you can all us for FREE!
TMG Corporate Website TMG Products Website
Disclaimer:
All trademarks appearing within this PDF are trademarks of their respective owners.

USER MANUAL
VIP MK3 / VIP SYSTEM3
S.p.a
Via Vizzano, 44 - 40044 Pontecchio Marconi (BO) - Italy
Tel. [phone] - Fax [phone]
http://www.elcontrol-energy.net
E-mail : Estero: [e-mail] Italia: [e-mail]
Rip: [e-mail]

INDEX
A OPERATOR SAFETY Pg.2
A.1 INTRODUCTION Pg.2
A.2 SAFETY PRECAUTIONS Pg.2
A.3 SYMBOLS Pg.2
B INSTRUCTIONS FOR INSTALLATION Pg.2
B.1 PRELIMINARY CHECKS Pg.2
B.2 SAFETY INSTRUCTIONS Pg.3
B.2.1 GROUNDING Pg.3
B.2.2 SUPPLY VOLTAGE Pg.3
B.2.3 MAINS FUSE Pg.3
B.3 BATTERY OPERATION Pg.4
1 DESCRIPTION OF THE INSTRUMENT Pg.5
1.1 WHAT IT CAN DO Pg.5
1.2 EASY TO USE Pg.6
1.3 HIGHLY VERSATILE Pg.8
1.4 FEATURES AND APPLICATIONS Pg.9
1.5 DESCRIPTION Pg.10
1.6 KIT SUPPLIED WITH INSTRUMENT Pg.13
1.7 HANDLING THE INSTRUMENT Pg.14
1.8 POWER SUPPLY AND CONNECTION Pg.16
1.9 STARYTING MEASUREMENT FUNCTION Pg.17
1.10 MANUAL PRINT-OUT OF MEASURED DATA Pg.18
2 OPERATING OPTIONS Pg.19
2.1 DISPLAY INDICATION OF MEASUREMENTS IN PROGRESS Pg.19
2.2 INSTRUMENT PRINT OPTIONS Pg.22
2.3 TIMED LOCAL PRINT ALARMS Pg.25
2.4 TARIFF TIME BANDS Pg.25
2.5 INTERRUPTIONS Pg.27
2.6 PLOTTER Pg.28
2.7 ALARM SIGNALLING Pg.28
2.8 TIMED PRINT-OUT ALARMS Pg.32
2.9 TARIFF TIME BAND ALARMS Pg.32
2.10 RELAY ALARMS Pg.33
2.11 PRESETTING PRINT-OUT Pg.33
2.12 PRINT-OUT OF LOCAL PRINTER PRESETTINGS Pg.34
2.13 PRINT-OUT OF ALARM PRESETTING Pg.35
2.14 USE OF THE VIP SYSTEM3 WITH PERIPHERALS Pg.35
2.15 USE OF INDSTRUMENT WITH HOST COMPUTER Pg.41
2.16 MODEM CONNECTION FOR REMOTE MONITORING Pg.42
2.17 USE OF THE MEMORY PACK FOR SURVEYS (SYSTEM3 ONLY) Pg.43
2.18 SURVEY DATA PRINT-OUT Pg.45
2.19 PYROMETER BLACK BOX FOR Pg.46
2.20 LEAKAGE CURRENT Pg.47

INDEX
3 USE OF THE VIP SYSTEM3 AND MK3 Pg.49
3.1 PRELIMINARY PROCEDURES Pg.49
3.1.2 Connection to Circuit Pg.50
Voltage Measurement Connections Pg.50
Current Measurement Connections Pg.51
3.1.3 Specific Connections Pg.52
C.T. Or Clamp Meters Other Than Standard Pg.52
Special Connections Pg.53
Medium Voltage Pg.54
Single Phase Measurement Pg.56
AC/DC Measurements Pg.56
3.1.4 Connections to peripherals Pg.57
3.1.5 Auxiliary measurement connections Pg.58
3.1.6 Switching on the instrument Pg.59
3.1.7 Initial presetting procedures Pg.60
3.2 LOCAL PRINTER Pg.67
3.2.1 Printer Menu Pg.68
3.2.2 Timed local print-out Pg.69
3.2.3 Plotter Measurements Pg.71
3.3 LANGUAGE CHANGE Pg.74
3.4 OPTIONS Pg.75
3.4.1 Tariff time-band programming (VipMk3 System3) Pg.75
3.4.2 Black Boxes and Memory Pack Pg.76
3.5 ALARMS MENU Pg.77
3.5.1 Minimum and maximum alarms Pg.78
3.5.2 Time alarms Pg.79
3.5.3 Insensitivity Time Pg.80
3.5.4 Tariff Band alarms Pg.81
3.6 RESET PROCEDURE Pg.82
3.7 USE OF PERIPHERALS Pg.86
3.7.1 Adapting the ars232 serial line Pg.87
3.7.2 Procedure for use of remote printer Pg.88
3.7.3 Procedure for use of Host Computer Pg.90
3.7.4 Use of alarm relays Pg.90
3.8 MEMORY PACK SURVEYS (YSTEM ONLY) Pg.92
3.9 DEFAULT VALUES Pg.98

INDEX
4 TECHNICAL FEATURES Pg.99
4.1 General specifications Pg.99
4.2 SAFETY Pg.101
4.3 MEASUREMENTS Pg.102
4.4 ACCURACY Pg.102
4.5 AC CLAMP METER 1000A/1Vrms Pg.104
4.6 PRINTER SPECIFICATIONS Pg.105
4.7 DISPLAY SPECIFICATIONS Pg.106
4.8 KIT SUPPLIED WITH VIP MK3/SYSTEM3 ENERGY
ANALYSER Pg.107
4.9 ACCESSORIES Pg.107
4.10 MEASUREMENTS WICH CANBE CARRIED OUT
AND THEIRSYMBOLS Pg.113
4.11 FORMULAS USED Pg.116
5 USE AND MAINTENANC Pg.117
5.1 WARNING AND RECOMMENDATIONS Pg.117
5.2 TROUBLES SHOOTING Pg.119
APPENDIX 1 Pg.121
VIP MK3/SYSTEM3 POWERING USING EXTERNAL
BATTERY SOURCE Pg.121

SECURITY
•This instrument was manufactured and tested in conformity with IEC 348,
the standards DIN 57411 Part 1/VDE 0411 Part 1, .Protective Measures
for the Electrical Measuring Instruments. and left the factory in perfect
technical safety conditions. For the purpose of maintaining these
conditions and to guarantee safe operation, the user must adhere to the
indications and warnings contained in the enclosed operating instructions.
•Before switching on the instrument it is necessary to verify that the
operating voltage and line voltage set on the instrument coincide.
•It must be plugged into only a current tap with earth (ground) wire.
This protective action must not be eliminated by using an extension cord
without a protection conductor.
•The electrical plug must be inserted before the measurement and
command circuits are disconnected.
•Warning!
Any cut off of the protection conductor inside or outside the instrument,
or detachment of the protection conductor connection can cause the
instrument to become dangerous. No voluntary cut off is allowed.
•During the opening of the covers or the removal of pieces with the
exception of the cases in which these operations are carried out
manually. live pieces can get skinned. The connection points can also be
live. Before any compensation maintenance. repair or replacement o
f
pieces. it must be detached from any power sources any time that it is
necessary to open it.
•The capacitors can be loaded even after it has been detached from alI
power sources.
•It must be guaranteed that the replacement protections used are of the
required amperage. The use of protections which have been repaired o
r
short-circuiting of the fuse carriers is not allowed.
•After having determined that it can no longer operate safely, it must be
taken out o! service and secured against involuntary operation.
Safe operation is no longer possible in the following cases -when the
instrument shows clearly visible damage -when it no longer operates
-after lengthy storage in adverse conditions
-after serious damage caused during transport.
1
There are two protection fuses inside the instrument. Fuse F1= 5x20 1A type T
mounted on the instruments P.C. Board for the protection of the logic circuits.
Fuse F2= 5x20 1A type T for the protection of the Ni-Cd batteries.
Maintenance and/or repair operations with the instrument open must be carried
only by qualified, authorised personnel.
A - OPERATOR SAFETY .
Read these pages carefully before installing and using the instrument.
A.1 - INTRODUCTION
The instrument described in this manual is designed for use by suitably trained
staff only.
2
Rear
Fuse

Ali servicing and/or repairs which involve opening the instrument must be
carried out exclusively by skilled, authorised staff.
A.2 - SAFETY PRECAUTIONS
For proper, safe use of the instrument and for servicing and/or repairs the staf
f
authorised to carry out servicing and/or repairs must observe standard safety
precautions.
A.3 -SYMBOLS
READ THE INSTRUCTIONS
A.4 - PRECAUTIONS IN CASE OF MALFUNCTIONS
If it is suspected that the instrument is no longer safe, for example because o
f
damage during transport or use, it must be withdrawn from service and
precautions must be taken to ensure that it is not used by mistake. Call in
authorised technicians for checks and any repairs required.
B - INSTRUCTIONS FOR INSTALLATION
B.1 - PRELIMINARY CHECKS
On receipt of the instrument, check that it has not been damaged during
transport.
If any problems are noted, contact the ELCONTROL service network for any
repairs or replacements.
B.2 -SAFETY INSTRUCTIONS
B.2.1 -GROUNDING
Before any connections are made the instrument must be grounded by means
of the power supply plug, which must be inserted only in sockets complete with
ground connections.
Power lead extensions may only be used if these ensure that the power supply
(mains) connection is maintained.
3
B.2.2 - SUPPLY VOLTAGE
The instrument can be supplied at a voltage range between 200V and
240 V; 50/60 Hz (100 V -120 V. 50/60 Hz on request).
For a supply voltage range 200 V- 240 V use fuses 80mA 250V type T
(160 Ma type T for 100V-120 V operations). Disconnect the power lead
before changing the fuse. The fuse holder is located on the rear panel
beneath the power socket. If the fuse requires replacement, proceed as
follows:
-Remove the fuse-holder lid using a screwdriver.
-Insert a new fuse with the same specifications and close the fuse
holder.
Ensure that only fuses with the same voltage and current ratings as the
originals are used.
Repaired and/or short-circuited fuses must never be used.
B.3 - BATTERY OPERATION
A 5 V 1300 mA Ni-Cd battery (consisting of 4 elements of 1.25 V 1300
mA connected in series) will supply the instrument for 3 hours with the
internal printer and display illumination switched off. IMPORTANT
When the instrument is running on the battery the ground connection is
not required and therefore MUST NOT BE CONNECTED. The internal
battery automatically recharges in 48 hours when the instrument is
connected to the power supply (mains), or it can be recharged in about
60 minutes if the FBC1 module is connected to the socket provided.
N.B. Remember that when the FCB1 battery charger is used the
automatic power supply (mains) charging function is disabled.
4

1 DESCRIPTICN CF THE INSTRUMENT
1.1 WHAT IT CAN DO
The VIP SYSTEM 3/ MK3 are the result of experience drawn from two
previous ELCONTROL instruments of the same type (the VIP and the
MICROVIP). whose excellent features they retains. However. they also
incorporate very important innovations which make them truly new
instruments.
They monitor alI three phases of a three-phase system.
They are portable, light-weight device with built-in 40-column printer.
The VIP SYSTEM 3/ MK 3 can run on batteries and can measure no less than
81 electrical parameters with very high accuracy.
In particular, the VIP SYSTEM 3/ MK 3 are capable of measuring parameters
not generally covered by an instrument of this type: they measure harmonic
distortions; indicate average values and record maximum readings for various
parameters; they measure and print out active and reactive power consump-
tion; and record micro interruptions in the power supply (mains) and the
duration of longer interruptions.
The built-in printer is capable of printing measurement data on request and
can provide automatic print-out of the sequence of measurements relative to
any four parameters selected by the operator.
The instruments. printers can also provide bar graphs plotting 2 of the
parameters measured: they also provide rapid print-out of the value of those
parameters which cross the alarm thresholds and monitor their development
with frequent print-out until they come back inside the preset limits.
Alarm monitoring is made more effective by two RELAY outputs activated
when an alarm threshold is crossed.
5
1.2 EASY TO USE
This brief description may give the impression that use of the instrument
is very complex: in reality, procedures far measurements relating to most
of parameters are quite straight forward.
The instrument is supplied by the factory already set up far monitoring
mast of the parameters relative to an electrical user.
The supporting hardware supplied with the instrument comprises a set o
f
voltage measurement connection cables, three clamp meters far current
measurement and various accessories.
The VIP SYSTEM 3 / MK 3 and their accessories are preset with default
program data ready for immediate operation: they can be used straight
away to measure electrical power in Low Voltage systems (up to 600
Volts between phases and neutral) with phase current up to 1000 Amps.
When the instruments are switched on, the measurement cycle starts
immediately and the display shows the first measurement page covering
three phase voltage. current. active power and CO~ parameters (see fig.
1.1 ).
All setting and selection procedures are carried out by means of a small
numerical keyboard and 4 function keys on the front of the instrument.
The function key with the symbol relating to the parameter required is
pressed to call up one of 10 different display pages, which show the 81
parameters the instrument is capable of monitoring.
6

The measurements displayed (updated every second) are the following
Page 1 -Voltage, current, Cosø, three phase power.
Page 2 -Voltage, current, Cosø, power of phase L 1 (R)
Page 3 -Voltage, current, Cosø, power of phase L2 (S)
Page 4 -Voltage, current, Cosø, power of phase L3 (T)
Page 5 -Three voltages, neutral current, frequency, phase rotation of each phase
and three-phase
Page 6 -Instantaneous, average and maximum active power of the three phases
and three-phase
Page 7 -Instantaneous, average and maximum apparent power of the three phases
and three-phase
Page 8 -Instantaneous, average and maximum reactive power of the three phases
and three-phase
Page 9- Percentage harmonic distortion of the three phases and three-phase.
Page 10- Active and reactive power consumption, average Tg and average Cosø
of the three phases and three-phase.
The measurements shown on the display can be printed by pressing the function
keys under the word PRINT in the last line of the display.
The next function key (beneath MENU) is pressed for access to the function
programming and measurement selection procedure.
Even if we are now presented with a very large range of options, management o
f
these procedures is very simple thanks to the menu's tree structure. the operator-
instrument dialogue.
Movement through the tree structure is by means of the numerical keys and the
function keys. The specific function of the function keys are always indicated on the
last line of the display page. (See Fig. 1.2)
For example, the function key located under "BACKPAGE" is pressed to turn back
one page in the MENU branch, while the function key under IIMEASURE" takes the
operator back to measurement page 1.
7
1.3 HIGHLY VERSATILE
The main feature of this instrument, and the factor which makes it unique o
f
its kind, is its outstanding versatility and expandability.
The range of parameters monitored can be extended: for example. a special
interface provides current measuring capacity from 30 mA to 999 kA.
Other interfaces allow accurate readings to be obtained even with current
transformers (CT) other than the clamp meter provided. with different ratios.
In the same way, a special interface can be combined with the system's
voltage transformers (VT) for medium voltage measurements.
Direct current measurements can be made using a special interface and
clamp meter.
The VIP SYSTEM 3 / MK 3 can be connected to the telephone line using a
MODEM device to permit remote processing of data from a number of analy-
zers.
A special accessory (MEMORY PACK) allows a larege number of measure-
ments to be stored and then transferred to a remote printer or a computer.
Finally, the VIP SYSTEM 3 can be used to measure different types of parame
ters far specific purposes through the installation of special BLACK BOXES.
The BLACK BOXES for measurement (by means of a prometer ) of tempera-
ture in the range from -20 o C. to + 200 o C (- 4 o to + 424 °F) ., and o
f
system leakage current, respectively, are already available.
8

1.4 FEATURES AND APPLICATIONS
The VIP SYSTEM 3 / MK 3 are therefore intended to provide electricity consumers
with in-depth information about their plant. But they are equally useful for design
engineers, fitters, service technicians and electricians for faultfinding, repair and
restructuring in plants already in operation.
The VIP SYSTEM 3 / MK 3 can be used in the following applications:
Load mapping
Overload reduction with correspondingly reduced current leakage
Checking new buildings and processes for design loading Improving safety
standards through overload identification
Accurate resolution of power factor correction problems.
Elimination of load peaks
Time period monitoring for optimum tariff utilisation
Monitoring high frequency marine and avionics supplies
DC measurement
PWM/PAM monitoring
910
1.5 DESCRIPTION
MULTIFUNCTION FUNCTION KEY
The function keys have different
functions depending
upon the specific display page.
PAPER ADVANCE
DISPLAY KEYBOARD
ON / STANDBY SWITCH
A
LARM RELAY
OUTPUTS
RS232 OUTPUT
INTERFACE CONNECTION FOR
AUXILIARY MEASUREMENTS
DISPLAY CONTRAST
REGULATION
POTENTIOMETER which
depends upon the inclination of
the instrument with respect to
the observers position
RAPID BATTERY CHARGE by means
of the FBCI optional accessory,
which is inserted between the line
and this point of the instrument.
The battery is recharged in on hour.
POWER SUPPLY (MAINS)
(with built-in fuse)
SELECTION ANG PRESETTINGS CARRIEQQUT ON THE KEYBOARD
KEY NUMBER for guided Selection inside the MENU
to Insert chosen presettings
KEY SYMB0L indicated to what measurements the
measurement display page refers (In this case [=
Three-phase measurements of (V-I-Cosø-KW on page
1)
ENTER confirm the posted
presettings the moves to the
following presettings
CLEAR cancels the existing
presettings

DISPLAY Alphanumerical and graphic high contrast LCD display complete with
badlight for night-time illumination. The display is divided into 81ines of 40
characters: the first 7 are for menu messages and measurements; the last
indicates the functions of the 4 function keys beneath.
KEYBOARD Tactile keypad with 12 keys, 9 divided into two parts of different
colours, the upper section numbers used for menu selections and the lower
part the symbols of measurements shown on the display.
PRINTER Impact printer, 40 alphanumerical characters, 1.5 print lines per
second, capable of providing plotter and graph print-outs.
MEMORY PACK External module which can be inserted in the instrument or in
a special compartment. connected by a connector. Contains a RAM memory of
128 or 512 kBytes with lithium buffer battery for storage of measurements.
which are retained for up to 5 years.-Suitable for VIP SYSTEM 3 only-
BLACK BOX Composition varies according to function. Generally comprises a
circuit with memory containing the application program. measuring method and
menu pages for the specific function. -(Suitable for VIP SYSTEM 3 )
11
FUNCTION KEY FUNCTIONS AS INDICATED ON DISPLAY
As mentioned above. the function keys take on different functions
depending on the page shown on the display.
Four symbols on the bottom line of each page indicate the functions
provided at the moment by the respective function keys beneath them.
These are interpreted as follows:
-> Turn to next page.
<- Return to the previous page (tram measurement pages)
MENU Turn to the MAIN MENU page which is the starting point for
alI procedures.
PRINT Print-out of the readings shown on the display
m k M Multiplier of the unit of measurement shown on the display.
M k m Divisor of the unit of measurement shown on the display
STOP Halts MEMORY PACK transfer.
BACKPAGE Return to previous page (from menu pages).
MEASURE Return to measurement page 1.
MODIFY Access to serial line modification page
RESET Access to RESET page (from survey programming page)
FORWARD Access to next measuring survey.
DISPLAY Selects display illumination adjustment page.
BEEP OFF Halts acoustic hot-spot tracer signal.
12
TOP VIEW
Measurement connections Black Box compartment
Vip System 3 only
Memory Pack
compartment
Vip System 3 only
Printer

POWER SUPPLY (MAINS) CABLE = Instrument feed cable
VOLTAGE CABLES = 4 cables (with double insulation) for voltage
measuring connections.
CLAMP METER = 3 clamp meters with range 0-1000 Amps
BELT = Instrument carrying-strap
INK RIBBON = Spare ink ribbon for printer.
PAPER ROLL = 2 spare rolls of paper for printer.
FUSES = 2 spare fuses
Spaces to house 3 MEMORY PACKS and 3 BLACK BOXES are also provided.
13
Carrying-strap connecting hooks.
Used when the instrument is to be carried on the carrying-strap.
The hooks are connected to special slots on the instrument's handle.
1.6 KlT SUPPUED WITH INSTRUMENT
The kit of equipment supplied with the VIP SYSTEM 3 / MK 3 is alI contained in a
sturdy case with foam inner lining for added protection. Fig. 1.3 below shows the
complete contents of the case and the location of the various accessories.
1.7 HANDLING THE INSTRUMENT
Adjustable handle
Used for lifting the instrument. AIso acts as an adjustable rest for the
instrument on the working surface.
The handle can be adjusted through 3200 from the rest position on a
series of catches.
Access to printer. By opening the pane' on the top of the instrument. Using
the thumbs, push on the ridged area on the lid in the direction shown in the
illustration.
14

Changing the ink ribbon.
Open the printer compartment. Press on the word PUSH and slide out the ribbon.
Fit the new ribbon, pushing down slightly.
Changing paper roll.
Open the printer compartment. Press on the word PUSH and slide out the ribbon.
Fit the paper as shown in Fig. 1.12 pressing the PAPER pushbutton several
times. Replace the ribbon and check paper alignment.
Access to connectors for connection of voltage measuring cables and clamp
meters. Open the panel on the top part of the instrument (procedure as for printer
compartment). This gives access to the connector panel as indicated in Fig. 1.14.
There are 4 single-pole connectors for the voltage measuring connections,
marked as follows:
15
Nfor connection of neutral (if any)
L 1 for connection of phase R
L 2 for connection of phase S
L 3 for connection of phase T
There are also three three-pale connectors far connection of the three
clamp meters: these are marked L 1, L2 and L3 respectively.
The right-hand part of this section houses the compartments containing
the connectors far the Memory pack and Black Boxes.(VIP SYSTEM 3
only)
1.8 POWER SUPPLY ANO CONNECTION
The instrument is suitable for use on a power supply (mains) of 200 -240 V
50/60Hz. (100- 120 V 50/60 Hz on request). Connection is via the IEE
socket on the rear panel. (see Fig.1.15)
The instrument may also be powered by its built-in rechargeable battery:
the battery circuit is automatically connected when the power supply
(mains) plug is removed.
The instrument is supplied directly by means of the power supply (mains)
lead
and fuse with no intermediary switches.
The ON/STANDBY switch affects only the internal low-voltage circuit and
the battery. In ON position the instrument is operative. while in STANDBY
it is switched off but the battery- charging circuit continues to receive
power.
At this point it only remains to connect the instrument to the circuit at the
points where the measurements are to be made. For Low Voltage three-
phase systems, this involves simply connecting the voltage measuring
cables to the three phases and the neutral (if any) and the three clamp
meters to the three phases.
For a more complete description of the voltage measuring connections
required in the various cases please turn to paragraph 3.1.2.
16

The instrument will now start taking measurements when the switch contact
is made (ON position). The readings will be shown on the display in real
time, and updated every second.
1.9 STARTING MEASUREMENT FUNCTION
The measurements of alI the load's electrical parameters (and some other
non-electrical parameters) can be shown on the instruments display panel.
as explained in detail in paragraph 2.1.
For access to display measurement page 1 from other pages. simply press
the far right-hand pushbutton (beneath the word MEASURE at the bottom
of the page).
From page 1 access to pages- 2 to 9 is obtained by simply pressing the
corresponding numbered key (see Fig. 1.17)
17
For access to measurement pages 10 to 14 from any measurement page
press [E] followed by the key bearing the second figure of the number
(see Fig. 1.18)
1.10 MANUAL PRINT-CUT CF MEASURED DATA
The bottom line of the display always indicates the function of each of
the 4 function keys immediately below. With a measurement page on the
display, the function key on the far right is pressed for manual print -out
of the measuring data shown on the display in that moment.
Let us suppose for example that we are on any one of the measurement
pages: to obtain a print-out of the data measurement contained on page
9 press [9] to call the data required onto the display. The function key
under IIPRINT" is then pressed for print-out of the data shown.
Apart from manual print-out of one page at a time, the instrument can
provide overall print -out of all the latest measurement data ( contained
on the 14 display pages.)
To obtain overall print-out from any one measurement page, simply
press the function key under "PRINT" (far right) twice.
18

2 OPERATING OPTIONS
As mentioned in the introduction, the VIP SYSTEM 31 MK 3 can provide a
large number of functions.
2.1 DISPLAY INDICATION OF MEASUREMENTS IN PROGRESS
The first 10 display pages show the measurements of 81 electrical
parameters. In addition, on display pages 15 and 16 the instrument
indicates any measurements of non-electrical parameters made using
special transducers and the appropriate black boxes. (VIP SYSTEM 3
only)
If the operator has programmed the tariff time bands into which the day is
to be divided, display pages 11,12,13 and 14 will provide 64
measurements of active and reactive power, (average Coø and Tgø» in
the various time intervals.
The instantaneous readings are updated every second.
The average values are calculated over the time period preset by
the operator, and are updated continually.
The maximum measurements are stored until exceeded.
Each display measuring page indicates the following data:
Date and hour, continually updated.
Identification of phase or three-phase indication.
Parameter being measured: parameter reading and unit o
f
measurement.
Time band indication.
Display page number.
Functions of function keys beneath display.
19 20

2.2 INSTRUMENT PRINT OPTIONS
The printer incorporated in the instrument provides print -out of measured data
in one of the following ways:
Manual print-out of the data which appear on the display
The operator obtains print-out of the data indicated on the display as shown in
fig.2.1 ; the tape also carries the date, time and page number.
Overall print-out (requested by the operator) by pressing twice the print function
key of alI the most recent measurements taken and stored by the instrument.
As shown in Fig. 2.2, overall print-out does not include average power and
energy readings for the various time bands if the operator has not made the
necessary presettings.
Timed local print. Automatic print-out of the measurements for 4 parameters
selected by the operator.
Under this mode the instrument stores 24 measurements (taken at a preset
time interval) and then prints them, without further operator instructions.
The operator selects the 4 parameters for timed local print from among the 63
electrical parameters (plus the auxiliary parameters).
This print mode is used to monitor a small number of parameters over relatively
long periods of time (many hours).
However, partial data may be obtained by interrupting the timed print sequence
and requesting immediate print-out of the measurements recorded so far (see
Fig. 2.2).
After this print-out (obtained using the FORCED PRINT procedure) the instru-
ment starts taking a new cycle of 24 readings for the next timed print-out.
22
21

Fig. 2.1 Manual Print-Outs
Fig. 2.2 FORCED AUTOMATIC
Print-Outs
After 18 print records at.17.09
hrs 21 sec the operator request
immediate print-out
Of measurements already
recorded
Fig. 2.3 OVERALL
PRINT-OUT
Energy consumption values
for the time intervals appear
only if the operator has set
the times for each time band.
Total energy consumption
values appear in all cases.
23 24

2.3 TIMED LOCAL PRINT ALARMS
As has been seen, timed print-out is used above alI for long-term monitoring at
fairly long time intervals.
However, more intensive monitoring of phenomena which start and finish
during the interval between two print-outs may be appropriate.
In this case, the instrument must be set to take more frequent readings during
the periods in which it is believed that these phenomena may occur.
The timed print function therefore includes the option of setting periods of tirne
within which the print-out time interval is shorter.
This instrument function, which is activated using the alarm procedure, is called
hour alarms.
The print-out interval may also be reduced if the parameters being monitored in
the timed print-out mode pass the preset alarm thresholds (minimum or
maximum alarms).
In both cases the print-out ti me interval automatically changes to the alarm
interval, preset by the operator during SET UP
The print-out tape shown in Fig. 2.4 indicates how the print- out interval
becomes shorter during alarm periods. (The [ > * < ] signs in the string indicate
that the value has passed the alarm threshold. Respectively: > start of alarm, *
value still in alarm, > end of alarm).
2.4 RATE TIME BANDS
When the user is charged different tariff at different times of day, active and
reactive energy counters may be used to come into operation during
programmed time bands.
A time band is a period of the day which can be programmed between 00.01
and 23.59 hours, during which the energy values will be recorded not only on
the total meters but also on the time-band meters.
Time bands cannot be overlapped but intervals may be left between them. The
tariff band energy counters provide energy totals only during the period of the
day included in the band. and are reset by the meter rest procedure.
A maximum of 4 tariff bands can be set during the day, but the energy
consumed during the period not covered by the tariff bands can be obtained by
subtracting the band meter totals from those of the overall meters, giving a fifth
tariff band which may also consist of different periods distributed through the
day.
25
Phase L 1 (V-1 N) voltage is in alarm state
(minimum and/or maximum alarm)
< ---4 Parameters selected for print-out
V-1 N L 1 phase voltage
W-ΣAverage three-phase active power
VA-ΣAverage three-phase apparent power
VAr-ΣAverage three-phase reactive power
< ---< V-1 N voltage comes back above
minimum alarm value
< ---> V-1 N voltage passes minimum
threshold again
< ---* V-1 N voltage remains in minimum
alarm state. The interval between two
successive measures is now equal to the
alarm interval.
< ---k The units of measurement are kW
and kVA
Fig 2.4 TIMED LOCAL PRINT-OUT
< ---The minus sign indicates excess
capacitive reactive power
PRINT-OUT OF A SECOND GROUP CF
MEASUREMENTS FOLLOWS AFTER A
TIME EQUAL TO 24 INTERVALS
Fig.2.5- PRINT-OUT OF POWER SUPPLY
INTERRUPTIONS
Microinterruption 200mS followed by
interruption of 36 Sec and return of power
supply.
26

2.5 INTERRUPTIONS
An interruption is any break in the instrument power supply which is in no way
related to the measurements being made. If the kind of monitoring is required fo
r
one of the phase on which measurements are being made. the instrument must be
supplied by the circuit to which the voltage measurement cables are connected.
An interruption is a complete voltage failure (O Volts).
Interruptions in operation of any length are immediately recorded on the print-out.
Interruptions faIl into one of three different categories:
MICRO-INTERRUPTIONS
Power supply failure lasting between 2.5 mSec and 1 sec.
A line such as that shown below is printed out. identifying the date. hour, minutes
and seconds at which the micro-interruption occurred and its duration in mSec.
MIGRO INTERRUPTION DD:MM:YY: HH: mm: ss xxxms
For interruptions lasting longer than one second, the instrument prints the date and
hour of the beginning and end of the interruption.
The print-out is of the following type:
MAINS INTERRUPTION DD: MM: YY: HH: mm: ss
MAINS RETURN DD: MM: YY: HH: mm: ss
If switched off, the instrument prints the date and time when it is switched off and
switched on again.
POWER OFF DD:MM:YY HH: mm: ss
POWER ON DD:MM:YY HH: mm: ss
In case of MICRO INTERRUPTIONS or MAINS INTERRUPTIONS the instrument
continues to run on its battery until these are exhausted, at which point it switches
off automatically.
Fig. 2.5 shows a print-out string for a short interruption in mains power supply.
Note that power supply is returned by an initial rapid re- establishment of the
switch contact (200 mSec) followed by a further re-establishment (36 Sec.)
27
2.6 PLOTTER
The instrument provides print-out in bar graph form of the measurements of two
parameters selected among those available: the plotter mode cannot be used
for maximum measurements and energy readings.
The instrument stores 24 measurements for each parameter at intervals preset
by the operator (sampling time). At the end of the sampling period the two
plotter graphs are printed one after the other.
The plotter zero and full scale values may be preset by the operator o
r
established automatically by the instrument.
As shown in Fig.2.6 , the tape also shows the date, the parameter monitored in
the graph, the hour when the readings were taken, the values of the 24
measurements in numbers, and the preset zero and full scale values.
If the parameter shown in the plotter graph has also passed one of the alarm
thresholds, the data print-out also indicates the alarm value.
When interpreting plotter graphs, remember that the instrument may give
negative measurements for some electrical parameters (- kW indicates active
power supplied to the circuit; -Coø indicates leading power factor. etc.)
These parameters may be represented in a plotter graph as shown in Fig. 2.8,
which shows the reactive power of a capacitor bank. This is first too low ( + KV
Ar) , and is then in excess of the load circuit requirement ( -KV Ar) in
succeeding periods.
It should also be remembered that the forced print procedure already de-
scribed in the timed print section can be used to obtain immediate print-out of a
partial plotter graph (see Fig. 2.7).
The forced print procedure can also be used to synchronise the two plotte
r
functions, which are generally programmed at different times and thus start at
different times. This also occurs when the instrument is switched on, since the
forced print procedure is carried out automatically.
2.7 ALARM SIGNALLING
The instrument is able to indicate (by print-out) whether a parameter has
exceeded a maximum threshold preset by the operator (Maximum alarm).
In the same way. it is also able to indicate when a parameter passes below a
minimum threshold preset by the operator (Minimum alarm).
28

Fig.2.8
29 30
DATE
Fig.2.6 PLOTTER GRAPH FOR VOLTAGE OF PHASE L1 (R)
Plotter zero value=
213 V
Plotter parameter
Plotter full
Scale = 259V
V
oltage value
measured
Measuring time
Sampling
Time = 1'
Maximum alarm
Threshold voltage
Minimun alarm
Voltage=210V
Fig.2.7 FORCED PLOTTER PRINT-OUT
Full scale excess kVAr Full scale low kVAr
Ploter zone fo
r
excess kVAr
Plotter zone for kVA
r
Absorbed by load
Fig.2.8 PLOTTER GRAPH OF EXCESS OR LOW
THREE-PHASE REACTVE POWER