Technical instruction - Digital multimeter DMG 800

Technical instruction - Digital multimeter DMG 800
LOVATO
DMG 800 Digital multimeter
INSTRUCTIONS MANUAL
WARNING!
• Carefully read the manual before the installation or use.
• This equipment is to be installed by qualified personnel,
complying to current standards, to avoid damages or safety
hazards.
● Before any maintenance operation on the device, remove all the voltages from
measuring and supply inputs and short-circuit the CT input terminals.
● Products illustrated herein are subject to alteration and changes without prior
notice.
● Technical data and descriptions in the documentation are accurate, to the best
of our knowledge, but no liabilities for errors, omissions or contingencies arising
there from are accepted.
● A circuit breaker must be included in the electrical installation of the building. It
must be installed close by the equipment and within easy reach of the operator.
It must be marked as the disconnecting device of the equipment:
IEC /EN 61010-1 § 6.12.2.1.
● Clean the instrument with a soft dry cloth; do not use abrasives, liquid
detergents or solvents.
Introduction
Description
Keyboard functions
Measurement viewing
Table of display pages
Display page navigation
Harmonic analysis page
Waveform page
Energy meters page
Hour counters page
Trend graph page
Counters page
User pages
Main menu
Password access
Settings lock
Expandability
Additional resources
Communication channels
Inputs, outputs, internal variables, counters
Limit thresholds
Boolean logic
Remote-controlled variables
Alarms
Tariffs
Setting of parameters (setup)
Table of parameters
Commands menu
Wiring test
Technical characteristics
Installation
Wiring diagrams
Terminal arrangement
Mechanical dimensions
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Introduction
The DMG800 multimeter has been designed to combine the maximum
possible easiness of operation together with a wide choice of advanced
functions. Thanks to its flush-mount 96x96mm housing, the DMG800
joins the modern design of the front panel with the tool-less mounting of
the device body and the expansion capability of the rear panel, where it
is possible to mount plug-in modules of EXP… series. The graphic LCD
graphic display offers a user-friendly interface. The rich variety of
functions, makes the DMG series multimeters the ideal choice for a wide
range of applications.
Description
•
Flush-mount housing, 96x96mm
•
Graphic LCD display, 128x80 pixels, white backlight, 4 grey levels.
•
Keyboard with 4 keys for visualization and setting.
•
Easy and fast navigation.
•
Compatible with LV, MV, HV applications.
•
Texts for measures, setup and messages in 5 languages.
•
Reading of more than 300 electrical parameters.
•
Harmonic analysis of voltage and current up to 31.st order.
•
Expansion bus for maximum 4 plug-in modules EXP… series.
•
Advanced programmable I/O functions.
•
True RMS measurements.
•
Continuous (gapless) sampling.
•
High accuracy.
•
Sealable terminal covers.
•
Settings lock through sealable dip-switch.
Keyboard functions
MENU key – Used to enter or exit from visualization and setting menus
▲ and ▼ keys – Used to scroll display pages, to select among possible
choices and to modify settings (increment-decrement).
key – Used to rotate through sub-pages, to confirm a choice, to
switch between visualization modes.
.
p. 2 / 24
Viewing of measurements
• The ▲and ▼keys allow to scroll the pages of viewed measurements
one by one. The page being viewed is written in the title bar.
• Some of the readings may not be shown, depending on the
programming and the wiring of the device (for instance, if
programmed-wired for a three-phase without neutral system, L-N
voltage page is not shown).
• For every page, the key allows to rotate through several sub-pages
(for instance to show the highest/lowest peak for the selected
readings).
• The sub-page viewed is indicated in the status bar on the bottom of
the display by one of the following icons:
• IN = Instantaneous value – Actual instantaneous value of the
reading, shown by default every time the page is changed.
• HI = Highest peak – Highest peak of the instantaneous value of the
relative reading. The HIGH values are stored and kept even when
auxiliary power is removed. They can be cleared using the
dedicated command (see commands menu).
• LO = Lowest peak. – Lowest value of the reading, stored from the
time the DMG powered-on. It is reseted using the same command
used for HI values.
• AV = Average value – Time-integrated value of the reading. Allows
showing measurements with slow variations. See integration menu
in setup chapter.
• MD = Maximum Demand - Maximum peak of the integrated value.
Stored in non-volatile memory and it is resettable with dedicated
command.
• GR = Graphic bars – Shows the measurements with graphic bars.
Measurement
Title bar
Phase indication
Unit of measure
Sub-page
indication
Example of display page with numeric indication
Measurement
Phase indication
HI-LO markers
Unit of measure
Example of display page with bar-graphs
• The user can define to which page and sub-page the display must
return to after a period of time has elapsed without any keystroke.
• If needed, it is possible to set the multimeter so that the display will
remain always in the position in which it has been left.
• To set these functions see menu M02 – Utility.
p. 3 / 24
Table of display pages
Nr
1
2
3
4
5
6
7
8
9
10
Selection with ▲and ▼
PAGES
PHASE-TO-PHASE VOLTAGES
Selection with SUB-PAGES
HI
LO
AV
GR
HI
LO
AV
GR
HI
LO
AV
MD
GR
HI
LO
AV
MD
GR
HI
LO
AV
MD
GR
HI
LO
AV
MD
GR
HI
LO
AV
HI
LO
AV
PH-PH VOLTAGE HARMONIC DISTORTION HI
LO
AV
V(L1-L2), V(L2-L3), V(L3-L1), V(LL)EQV
PHASE-TO-NEUTRAL VOLTAGES
V(L1-N), V(L2-N), V(L3-N), V(L-N)EQV
PHASE AND NEUTRAL CURRENTS
I(L1), I(L2), I(L3), I(N)
ACTIVE POWER
P(L1), P(L2), P(L3), P(TOT)
REACTIVE POWER
Q(L1), Q(L2), Q(L3), Q(TOT)
APPARENT POWER
S(L1), S(L2), S(L3), S(TOT)
POWER FACTOR
PF(L1),PF(L2),PF(L3),PF(EQ)
FREQUENCY-ASYMMETRY
F, ASY(VLL), ASY(VLN), ASY(I)
THD-V(L1-L2), THD-V(L2-L3), THD-V(L3-L1)
H2…31 V(L1-L2)-V(L2-L3)-V(L3-L1)
THD-V(L1),THD-V(L2),THD-V(L3)
GR
PH-N VOLTAGE HARMONIC ANALYSIS
H2…31 V(L1)-V(L2)-V(L3)
14 PH-N VOLTAGE WAVEFORMS
CURRENT HARMONIC DISTORTION
15
THD-I(L1), THD-I(L2) THD-I(L3)
16
GR
PH-PH VOLTAGE HARMONIC ANALYSIS
L1-L2 L2-L3 L3-L1
11 PH-PH VOLTAGE WAVEFORMS
PH-N VOLTAGE HARMONIC DISTORTION HI
LO AV
12
13
GR
L1-N L2-N L3-N
HI
LO
AV
L1
L2
L3
GR
CURRENT HARMONIC ANALYSIS
H2…31 I(L1)-I(L2)-I(L3)
17 CURRENT WAVEFORMS
ENERGY METERS
18 kWh+(TOT), kWh-(TOT), kvarh+(TOT),
PARTIAL
kvarh-(TOT), kVA(TOT)
19 ENERGY TARIFFS
20 TREND GRAPH
HOUR COUNTER
21
TAR1
…
TAR4
CNT1
AIN1
AOU1
LIM1
BOO1
ALA1
…
…
…
…
…
…
CNT4
AIN8
AOU8
LIM8
BOO8
ALA8
Hr(TOT), Hr(Partial)
22
23
24
25
26
27
28
29
EXPANSION MODULES
COUNTERS
ANALOG INPUTS
ANALOG OUTPUTS
LIMIT THRESHOLDS
BOOLEAN LOGIC
ALARMS
INFO-REVISION-SERIAL NO..
MODEL, REV SW, REV HW, SER. No.
30 LOGO
31 USER-DEFINED PAGE 1
32 USER-DEFINED PAGE 2
33 USER-DEFINED PAGE 3
34 USER-DEFINED PAGE 4
• Note: Some of the pages listed above may not be available if the function
that they must view is not enabled. For instance, if no alarms have been
defined, then the Alarm page will not be shown.
p. 4 / 24
Display pages navigation
Phase–Phase voltages
HI = Highest value
IN = Instantaneous value
▲
LO = Lowest value
AV = Average value
GR = Graphic bars
▼
Phase–Neutral voltages
IN = Instantaneous value
▲
HI = Highest value
LO = Lowest value
AV = Average value
GR = Graphic bars
▼
Phase–Neutral currents
N = Instantaneous value
▲
HI = Highest value
LO = Lowest value
AV = Average value
…
MD = Max demand
▼
…..
…..
(continues)
Harmonic analysis page
• The DMG800 provides the harmonic analysis up to the 31st order of
the following measurements:
o phase-to-phase voltages
o phase-to-neutral voltages
o currents
• For each of these measurements, there is a display page that
graphically represents the harmonic content (spectrum) through a bar
graph.
• Every column is related to one harmonic order, even and odd. The first
column shows the total harmonic distortion (THD).
• Every histogram bar is then divided into three parts, one each phase
L1,L2, L3.
• The value of the harmonic content is expressed as a percentage with
respect to the fundamental (system frequency).
• It is possible to show the harmonic content in numeric format, pressing
button to activate the cursor and then selecting the required order
through ▼▲. The lower part of the screen will display a little arrow
that points to the selected column, and the relative percentage value of
the three phases. Press once more to leave numeric mode.
• The vertical scale of the graph is automatically selected among four
full-scale values, depending on the column with the highest value.
Numeric values
of the selected
order
Waveform page
• This page graphically views the waveform of the voltage and current
signals read by the DMG800.
• It is possible to see one phase at a time, selecting it with key.
p. 5 / 24
(continues)
• The vertical scale (amplitude) is automatically scaled in order to fit the
waveform on the screen in the best possible way.
• The horizontal axis (time) shows two consecutive periods referred to
the fundamental frequency.
• The graph is automatically updated about every 1s.
Energy meters page
• The Energy meters page shows the following meters simultaneously:
o active energy, Imported and exported
o reactive energy, imported and exported (inductive / capacitive)
o apparent energy.
• The main page shows the total meters. Pressing key , the display
moves to sub-page with partial meters (clearable by the user).
• To clear energy meters, it is necessary to access the commands
menu.
Total / Partial
indication
Hour counters page
• The Hour counters page shows the following meters simultaneously:
o total hour meter (counts the power-on time of the device)
o partial hour meter (counts how long a programmable condition
has been true)
• To clear hour counters, it is necessary to access the Commands
menu.
• The hour counter page can be completely hidden if the general hour
counter enable has been set to OFF (see Hour counter menu).
Trend graph page
• The trend graph page allows to show the changes in the time domain
of one measurement selectable among the following:
o average equivalent voltage
o average total active power
o average total reactive power
o average total apparent power.
• The default measurement is the Average total active power. To change
the measurement, enter the dedicated menu parameter in the Trend
sub-menu.
• It is possible to see, on the graph, the history of the last 96 values of
the integrated measurement, each correspondent to a integration time
interval.
• The default time interval is equal to 15 minutes, so the graph depth in
time is equal to 24h.
• With the default factory setting, the trend graph shows the active
power demand variation of the last day.
• The consumption data is lost when auxiliary power is removed from the
DMG device or when the settings in the setup menu are changed.
• When the maximum storing capacity is exceeded, the newest data will
overwrites the oldest, so that the most recent data is always shown.
• The vertical full-scale is calculated automatically, depending on the
measurement selected and the highest value recorded in the Setup
menu.
p. 6 / 24
Time scale.
Indicates the time
in the past to which
the measurements
are referred
Vertical scale. Can
be auto ranging or
fixed by the user
Measurement
shown on graph
Counters page
• The counters page displays CNT1…4 counters.
• For every counter, it is possible to define a description and a unit of
measure with a free text, for instance litres, cubic meters, etc.
• It is possible to define a conversion factor between the number of
pulse counts and the measurement shown on display. This function
can be obtained by specifying a multiply and a divide factor. For
instance, setting the multiplier k to 3, for every pulse count, the value
shown will be incremented 3 times. If instead, a divider is set to 10,
then the value will be incremented by one only after 10 pulses have
been applied to the input. With a combination of multiply and divide
factor, any ratio between counts and measurement can be achieved.
• If the counter has no divide factor, the screen will indicate the counter
without fractional digits, otherwise the counter will be displayed with
two decimal digits.
• The counters can be cleared by means of Commands menu.
Counter
Description
(free text)
Unit of measure
(free text)
Nr. of the selected
counter
User pages
• The user can create a maximum of 4 customised display pages.
• Each of these pages can view 4 measurements, freely chosen among
the available readings of the DMG800.
• The title of the page can be freely programmed by the user, allowing,
for instance, indicating the part of the plant supervised by the
multimeter.
• The user pages are placed in a position that allows to reach them
easily starting from the first page, by pressing button ▲.
• Like all other pages, it is possible to set the multimeter to return
automatically to the user page after a time has elapsed without
keystrokes.
• To define the user page, see the dedicated menu M15 in the
parameter setup chapter.
p. 7 / 24
Main menu
• The main menu is made up of a group of graphic icons (shortcuts) that
allow rapid access to measurements and settings.
• Starting from normal viewing, press MENU key. The main menu
screen is displayed.
• Press ▲▼ to select the required function. The selected icon is
highlighted and the central part of the display shows the description of
the function.
• Press to activate the selected function.
• If some functions are not available, the correspondent icon will be
disabled, that is shown in a light grey colour.
•
etc. - Shortcuts that allow jumping to the first
page of that group. Starting from that page it is still possible to move
forward-backward in the usual way.
•
–Open the password entry page, where it is possible to specify the
numeric codes that unlock protected functions (parameter setting,
commands menu).
– Access point to the setup menu for parameter programming.
•
•
– Access point to the commands menu, where the authorised user
can execute some clearing-restoring actions.
Password entry
Voltage
readings
Current readings
Commands
menu
Power readings
Setup menu
FrequencyAsymmetry
Expansion
modules
Allarmi - Soglie
Hour counters
Harmonic
Analysis
Trend graph
Energy meters
Password access
• The password is used to enable or lock the access to setting menu
(setup) and to commands menu.
• For brand-new devices (factory default), the password management is
disabled and the access is free. If instead the passwords have been
enabled and defined, then to get access, it is necessary to enter the
password first, specifying the numeric code through the keypad.
• To enable password management and to define numeric codes, see
setup menu.
• There are two access levels, depending on the code entered:
•
User-Level access – Allows clearing of recorded values but
not editing of setup parameters.
•
Advanced access level – Same rights of the user access
plus settings editing-restoring.
• From normal viewing, press MENU to recall main menu, select the
password icon and press .
• The display shows the screen in picture:
•
•
•
•
Keys ▲▼change the selected digit
Key confirms the digit and moves to the next.
Enter numeric code, then move on the key icon.
If the password code entered matches the User access code or the
Advanced access code, then the correspondent unlock message is
shown.
• Once unlocked the password, the access rights last until:
o the device is powered off.
o the device is reset (after quitting the setup menu).
o the timeout period of two minutes elapses without any keystroke.
• To quit the password entry screen press MENU key.
p. 8 / 24
Settings Lock
• On the DMG800 there are two DIP switches that are used to lock
the access to parameter settings and / or to reset operations
(commands menu).
• This DIP switches are placed in a way that they become
unaccessible once the sealable terminal cover is mounted.
• To change switch position:
o Remove power supply to DMG800 and remove terminal
covers (if mounted) and the 8-pole terminal block
o Using a small flat screwdriver, move the switches in the
desired position.
o Re-assemble terminal blocks and terminal covers.
• The multimeter is supplied with the switches in unlocked position.
SW
SW1
SW2
POS
DESCRIZIONE
OFF
ON
OFF
ON
Parameter settings allowed
Parameter settings locked
Commands menu access allowed
Commands menu access locked
Expandability
• Thanks to expansion bus, the DMG800 can be expanded with
EXP… series modules.
• It is possible to connect a maximum of 4 EXP… modules.
• The supported EXP modules can be grouped in the following
categories:
o communication modules
o digital I/O modules
• To insert an expansion module:
o remove the power supply to DMG800
o remove the terminal cover and the 8-pole terminal block
o remove the protecting cover of one of the expansion slots
o insert the upper hook of the module into the fixing hole
o rotate down the module body, inserting the connector on the
bus
o push until the bottom clip snaps into its housing
o Re-install the terminal block and the transparent terminal cover
• The modules insertion sequence is free.
WARNING!
• When the EXP.. module is installed on a DMG series
multimeter, it is mandatory to install the sealable
terminal block covers supplied with the multimeter.
p. 9 / 24
• When a DMG800 is powered on, it automatically recognises the EXP
modules that have been mounted.
• If the system configuration has changed with respect to the last saved,
(one module has been added or removed), the base unit asks the user
to confirm the new configuration. In case of confirmation, the new
configuration will be saved and will become effective, otherwise the
mismatch will be shown at every subsequent power-on of the
multimeter.
• The actual system configuration is shown in the dedicated page of the
display (expansion modules), where it is possible to see the number,
the type and the status of the modules.
• The I/O numbering is shown under each module.
• The status (energised/de-energised) of every single I/O and
communication channel is highlighted in reverse
Type of the
expansion module
No. and status of
communication
channel
Numbering and
status of the I/O
Additional resources
• The expansion modules provide additional resources that can be used
through the dedicated setup menus.
• The setup menus related to the expansions are always accessible, even
if the expansion modules are not physically fitted.
• Since it is possible to add more than one module of the same typology
(for instance two communication interfaces), the setup menus are
multiple, identified by a sequential number.
• The following table indicates how many modules of each group can be
mounted at the same time. The total number of modules must be less or
equal than 4.
MODULE TYPE
COMMUNICATION
DIGITAL I/O
CODE
EXP 10 10
EXP 10 11
EXP 10 12
EXP 10 13
EXP 10 14
EXP 10 00
FUNCTION
USB
RS-232
RS-485
Ethernet
Profibus® DP
4 INPUTS
4 STATIC
OUTPUTS
2 INPUTS +
2 ST. OUTPUTS
2 RELAYS
2 ANALOG
INPUTS
MAX Nr.
2
EXP 10 05
2 ANALOG
OUTPUTS
4
EXP 10 30
EVENT MEMORY
+ REAL TIME
CLOCK
1
EXP 10 01
EXP 10 02
ANALOG I/O
MEMORY
EXP 10 03
EXP 10 04
2
2
4
4
4
Communication channels
• The DMG800 supports a maximum of 2 communication modules,
indicated as COMn. The communication setup menu M07 is thus
divided into two sections (n=1 and n = 2) of parameters for the setting of
the ports.
• The communication channels are completely independent, both for the
hardware (physical interface) and for the communication protocol.
• The two channels can communicate at the same time.
p. 10 / 24
Inputs, outputs, internal variables, counters, analog inputs
• The inputs and outputs of the expansion modules are identified by a
code and a sequence number. For instance, the digital inputs are
identified by code INPx, where x is the number of the input. In the same
way, digital outputs are identified by code OUTx.
• The sequence number of I/Os is simply based on their mounting
position, with a progressive numbering from left to right. For instance
the input INP1 is the input terminal closest to the base unit, while the
subsequent inputs will be named INP2, INP3 and so on.
• The DMG800 supports a maximum of 8 digital inputs and 8 outputs that
will thus be numbered INP1…8 and OUT1…8. For every I/O, there is a
dedicated setting menu that allows to specify functionality and
properties.
• In a similar way, there are some internal bit-variables (markers) that can
be associated to the outputs or combined between them. For instance,
it is possible to apply some limit thresholds to the measurements done
by the multimeter (voltage, current, power, etc.). In this case, an internal
variable named LIMx will be activated when the measurements will go
outside the limits defined by the user through the dedicated setting
menu.
• Furthermore, there are up to 4 counters (CNT1..CNT4) that can count
pulses coming from an external source (through a digital input INPx) or
the number of times that a certain condition as been verified. For
instance, defining a limit threshold LIMx as the count source, it will be
possible to count how many times one measurement has exceeded a
certain limit.
• Finally it is possible to manage up to 8 analog inputs, connected to
external analog sensors (temperature, pressure, flow etc). The value
read from the sensors can be scaled to any unit of measure, visualized
on the display and transmitted on the communication bus. The value
read from analog inputs is shown on the dedicated display page. They
can be used to drive LIMx limit thresholds.
• The following table groups all the I/O and the internal variables
managed by the DMG800.
CODE
DESCRIPTION
Digital inputs
Digital outputs
LIMx Limit thresholds
BOOx Boolean logic
REMx Remote-controlled variables
ALAx Alarms
PULx Energy count pulses
CNTx Counters
AINx Analog inputs
AOUx Analog outputs
INPx
OUTx
RANGE
1…8
1…8
1…8
1…8
1…8
1…8
1…5
1…4
1…8
1…8
• The status of each I/O or internal variable can be shown on the display
in the dedicated page.
Limit thresholds (LIM)
• The LIMn thresholds are internal variables whose status depends on
the out-of-limits of one particular measurement set by the user (e.g.
total active power higher than 25kW) among all those measured.
• To make the setting of the thresholds easier, since the limits can span
in a very wide range, each of them can be set using a base number and
a multiplier (for example: 25 x 1k = 25000).
• For each LIM, there are two thresholds (upper and lower). The upper
threshold must always be set to a value higher than the lower threshold.
• The meaning of the thresholds depends on the following functions:
Min function: the lower threshold defines the trip point, while the upper
threshold is for the resetting. The LIM trips when the selected
measurement is less than the Lower threshold for the programmed delay.
When the measured value becomes higher than the upper setpoint, after
the delay, the LIM status is reset.
Max function: the upper threshold defines the trip point, while the lower
threshold is for the resetting. The LIM trips when the selected
p. 11 / 24
measurement is more than upper threshold for the programmed delay.
When the measured value decreases below the lower setpoint, after the
delay, the LIM status is reset.
Max+Min function: both thresholds are for tripping. When the measured
value is less than lower or more than upper setpoints, then, after the
respective delays, the LIM will trip. When the measured value returns
within the limits, the LIM status will be immediately reset.
• Trip denotes either activation or de-activation of the LIM variable,
depending on ‘Normal status’ setting.
• If the LIMn latch is enabled, the reset can be done only manually using
the dedicated command in the commands menu.
• See setup menu M08.
Type of measure
Upper threshold
Function
Threshold delay
Value of measure
Status of the limit
variable
Lower threshold
Boolean logic (BOO)
• It is possible to create max. 8 internal variables named BOO1..8, whose
status depends on the Boolean logic combination of limit thresholds,
inputs, outputs, etc.
• The operands (INP, LIM etc) can be combined between each other with
the following Boolean operators: AND, OR, EXOR, AND NOT, OR NOT,
EXOR NOT.
• Every Boolean variable is the result of max 4 operands combined with 3
logic operations.
• Example: if one wants the Boolean variable BOO1 to be activated when
the limits LIM1, LIM2 and LIM3 are all active or when the input INP1 is
active, BOO1 must programmed as the combination of LIM2 AND LIM3
AND LIM4 OR INP1.
• It is not necessary to use all 4 operands for one Boolean variable. If for
instance, one wants BOO2 to be active when INP1 or INP2 are active,
then it is possible to program BOO2 settings with the combination INP1
OR INP2, leaving the following logic operations set to --- (no operation).
• The BOOLEAN LOGIC page displays, for every variable BOO1..8, the
status of the single operands that are involved in the logic operation and
the final result, that is the status of the selected Boolean variable.
Operand 1
Operand status 1
Logic operation 1
Operand 2
Status of the
resulting variable
…
Remote-controlled variables (REM)
• DMG800 can manage up to 8 remote-controlled variables
(REM1…REM8).
• Those are variables which status can be modified by the user through
the communication protocol and that can be used in combination with
outputs, Boolean logic, etc.
• Example: using a remote variable (REMx) as a source for an output
(OUTx), it will be possible to freely energise or de-energise one relay
through the supervision software. This allows to use the DMG800 relays
to drive lighting or similar loads.
• Another possible use of REM variables is to enable/disable other
functions remotely, inserting them into a Boolean logic in AND with
inputs or outputs.
p. 12 / 24
Alarms (ALA)
• The user has the possibility to define a maximum of 8 programmable
alarms (ALA1…ALA8).
• For each alarm, it is possible to define the source that is the condition
that generates the alarm, and the text of the message that must appear
on the screen when this condition is met.
• The condition that generates the alarm can be, for instance, the
overcoming of a threshold. In this case, the source will be one of the
limit thresholds LIMx.
• If instead, the alarm must be displayed depending on the status of an
external digital input, then the source will be an INPx.
• With the same criteria, it is possible to also link complex conditions to
an alarm, resulting from the logic combination of inputs, limits, etc. In
this case, the Boolean logic variables BOOx must be used.
• For every alarm, the user can define a free message that will appear on
the alarm page.
• It is also possible to define a priority for the alarm. If it is a simple
indication, then the priority can be set to low. In this case the icon that
follows the message will be the ‘info’ symbol.
• If instead, the alarm must indicate a more critical situation, then setting
its priority to High, the message will be displayed with the ‘Warning’
icon, and when the alarm becomes active, the display page will move
automatically on the Alarm screen.
• When several alarms are active at the same time, they are displayed
sequentially, and their total number is shown on the status bar.
• To reset one alarm that has been programmed with latch, use the
dedicated command in the commands menu.
For alarm programming and definition, refer to setup menu M09.
Alarm nr. / total
alarm count
Tariffs
• For the Energy billing, the DMG800 can manage 4 different tariffs in
addition to the total and partial Energy meters.
• The tariff selection is made by external digital inputs, and is thus
conditioned by the use of an EXP expansion module provided with
digital inputs. To select among the 4 tariffs, the two input functions
TAR-A and TAR-B must be used. Their binary combination selects the
tariff as shown in table:
TAR-A
TAR-B
TARIFF
OFF
1
OFF
ON
2
OFF
OFF
3
ON
ON
4
ON
• If the synchronise input for the power integration is used, then the tariff
change becomes active when the sync signal triggers it; otherwise the
tariff change takes place immediately when the status of the selecting
inputs changes.
• The tariffs, each with 5 meters (active energy imported/exported,
reactive imported/exported, apparent) are shown on a dedicated page,
following the total-partial energy screen.
Active tariff
Visualized tariff
p. 13 / 24
Parameter setting (setup)
• With normal viewing, press MENU to recall the General menu, then
select
icon and press to open the setup menu screen.
• The display will show the table below, with the parameters grouped in
sub-menus with a function-related criteria .
• Select the required menu with ▲▼keys and confirm with .
• To quit setup and go back to the readings viewing, press MENU.
Set-up: menu selection
• The following table lists the available sub-menus:
..
COMCOMn
Cod. MENU
DESCRIPTION
M01 GENERAL
Detailed data of the installation
M02 UTILITY
Language, backlight, display
display
M03 ecc.
PASSWORD
Access codes enabling
accesso
M04 INTEGRATION
Readings integration time
M05 HOUR COUNTER
Hour counter enabling
M06 TREND GRAPH
Trend graph reading and scale
grafico
M07 trend
COMMUNICATION (COMn)
Communication ports
M08 LIMIT THRESHOLDS (LIMn) Limit thresholds on readings
M09 ALARMS (ALAn)
Alarm messages
M10 COUNTERS (CNTn)
General counters
M11 ENERGY PULSING (PULn)
Energy pulse count
M12 BOOLEAN LOGIC (BOOn)
Boolean logic variables
M13 INPUTS (INPn)
Digital inputs
M14 OUTPUTS (OUTn)
Digital outputs
M15 USER PAGES (PAGn)
User-defined pages
M16 ANALOG INPUTS (AINn)
Analog inputs
M17 ANALOG OUTPUTS (AOUn) Analog outputs
• Select the sub-menu and press to show the parameters.
• Each parameter is shown with code, description and actual setting
value.
Parameter code
Present setting
value
Parameter
description
Selected
parameter
pages, etc.
parameters (DMG210)
Set-up: parameter selection
• To modify the setting of one parameter, select it and then press .
• If the Advanced level access code has not been entered, it will not be
possible to enter editing page and an access denied message will be
shown.
• If instead the access rights are confirmed, then the editing screen will
be shown.
Selected
parameter
New value
entered
Minimum
possible setting
Maximum
possible setting
Graph bar of the
value-range
Factory default
setting
Set-up: editing page
• When the editing screen is displayed, the parameter setting can be
modified with ▲and ▼keys. The screen shows the new setting, a
graphic bar that shows the setting range, the maximum and minimum
values, the previous setting and the factory default.
• Pressing simultaneously ▲and ▼, the setting is set to factory default.
• During the entry of a text string, keys ▲and ▼are used to select the
alphanumeric character while is used to move the cursor along the
p. 14 / 24
text string. Pressing keys ▲and ▼simultaneously will move the
character selection straight to ‘A’.
• Press MENU to go back to the parameter selection. The entered value
is stored.
• Press MENU again to save all the settings and to quit the setup menu.
The multimeter executes a reset and returns to normal operation.
• If the user does not press any key for more than 2 minutes, the
multimeter leaves the setup automatically and goes back to normal
viewing.
Table of parameters
M01 – GENERAL
P01.01 CT primary
P01.02 CT secondary
P01.03 Rated voltage
P01.04 Use VT
P01.05 VT primary
P01.06 VT secondary
P01.07 Wiring
UoM
A
A
V
V
V
Default
5
5
Aut
OFF
100
100
L1-L2-L3-N
Range
1-10000
1-5
Aut / 50-500000
OFF-ON
50-500000
50-500
L1-L2-L3-N
L1-L2-L3
L1-L2-L3-N BIL
L1-L2-L3 BIL
L1-N-L2
L1-N
P01.01 – CT primary winding rated current.
P01.02 – CT secondary winding rated current.
P01.03 – System rated voltage. Leaving to Aut the multimeters automatically
adapts bar-graph full scale.
P01.04 – Set to ON if VT are used. If set to OFF, the following two parameters will
be ignored.
P01.05– VT primary winding rated voltage.
P01.06 – VT secondary winding rated voltage.
P01.07 – Set this parameter according to the used wiring diagram. See witring
diagrams on last pages of the manual.
M02 – UTILITY
P02.01 Language
UoM
Default
English
P02.02
P02.03
Display contrast
High backlight level
%
%
50
100
Range
English
Italiano
Francais
Espanol
Portuguese
0-100
0-100
P02.04
Low backlight level
%
30
0-50
P02.05
Low backlight delay
s
30
5-600
P02.06
P02.07
P02.08
Default page return
Default page
Default sub-page
s
60
VL-L
INST
P02.09
Display update time
s
0.5
OFF / 10-600
VL-L / VL-N …
INST / HI / LO /
AVG / MD
/GRAPH/ 1-8
0.1 – 5.0
P02.06 – If set to OFF the display always remains in the page where the user left
it. If set to a time delay, after that time the display page goes back to page set in
P02.07.
P02.07 – Number of the page to which the display returns automatically after time
specified by P02.06 has elapsed from the last keystroke.
P02.08 – Sub-page type to which the display returns after P02.06 has elapsed.
M03 – PASSWORD
UoM
Default
Range
P03.01 Enable passwords
OFF
OFF-ON
P03.02 User level password
1000
0-9999
P03.03 Advanced level password
2000
0-9999
P03.01 – If set to OFF, password management is disabled and the access to
setup parameters and command menu is allowed.
P03.02 – When P.03.01 enabled, value to be specified to get user access.
P03.03 – Like P03.02, but referred to advanced access.
p. 15 / 24
M04 – INTEGRATION
P04.01 Integration mode
P04.02
P04.03
P04.04
Power integration time
Current integration time
Voltage integration time
UoM
Default
Shift
min
min
min
15
15
1
Range
Fixed
Shift
Synchr.
Bus
1-60min
1-60min
1-60min
P04.05
Frequency integration
min
1
1-60min
time
P04.01 – Selection of average reading calculation method:
Fixed = Readings are integrated for the set time. Every time the integration time
elapses, the Average value is updated with the result of the last integration.
Shift = The instantaneous values are integrated for a period f time equal to 1/15th
of the set time. Every time this interval elapses, the oldest value is replaced with
the new one just calculated. The average value is updated every 1/15th of the time
set, considering a time-sliding window that groups the last 15 calculated values,
with a total length equal to integration time setting.
Sync = Like fixed mode, but the integration intervals are started by an external
digital input programmed with Synchronization function.
Bus = Like fixed mode, but the integration intervals are started by communication
messages on the serial bus.
P04.02 - Average readings integration time, used for active, reactive and apparent
power.
P04.03, P04.04, P04.05 - Readings integration time (AVG) for the correspondent
measurements.
M05 – HOUR COUNTER
P05.01 Hour counters enable
UoM
Default
ON
Range
OFF-ON
P05.02
Partial hour counter
ON
OFF-ON- INPx-LIMxenable
BOOx
P05.03 Channel number (x)
1
1-8
P05.01 - If set to OFF the hour meter s are disabled and the hour meter page is
not shown.
P05.02 - If set to OFF, the partial hour meter is not incremented. If ON, time is
incremented as long as DMG is powered.
P05.03 - Number of the channel (x) of the variable eventually used in the previous
parameter. Example: If the partial hour counter must count the time during which
one measurement is above a certain threshold, e.g. defined by LIM3, then it is
necessary to program LIM in the previous parameter and channel 3 in this
parameter.
M06 –TREND GRAPH
P06.01 Trend graph measure
UoM
Default
kW (tot)
AVG
Range
VL-L (eq) AVG
kW (tot) AVG
kvar (tot) AVG
kVA(tot) AVG
OFF-ON
0-1000
x1 – x1k – x1M
P06.02 Autorange
ON
P06.03 Full scale value
1000
P06.04 Full scale multiplier
x1
P06.01 – Selects the reading to be shown on trend graph page.
P06.02 – Choice between automatic range or fixed range defined by the user.
P06.03 – Full scale range value. The unit of measure is the one defined by the
selected reading.
P06.04 – Full scale value multiplier.
M07 – COMMUNICATION
(COMn, n=1..2)
P07.n.01 Serial node address
P07.n.02 Serial speed
UoM
Default
Range
bps
01
9600
01-255
1200
2400
4800
9600
19200
38400
8 bit, no parity
8 bit, odd
8bit, even
7 bit, odd
7 bit, even
1-2
Modbus RTU
Modbus ASCII
Modbus TCP
000.000.000.000 255.255.255.255
P07.n.03
Data format
8 bit – n
P07.n.04
P07.n.05
Stop bits
Protocol
1
Modbus
RTU
P07.n.06
IP Address
000.000.000
.000
p. 16 / 24
P07.n.07
Subnet mask
000.000.000 000.000.000.000 .000
255.255.255.255
P07.n.08 IP port
1001
0-9999
Note: this menu is divided into 2 sections, for comm channels COM1..2
P07.n.01 – Serial address (node number) for the communication protocol.
P07.n.02 – Serial communication speed.
P07.n.03 – Data format. Can be set to 7 bits only for ASCII protocol.
P07.n.04 – Number of stop bits.
P07.n.05 – Communication protocol selection.
P07.n.06, P07.n.07, P07.n.08 –TCP-IP coordinates for application with Ethernet
interface. Not used for other types of interface modules.
M08 – LIMIT TRESHOLDS
UoM Default
Range
(LIMn, n=1..8)
P08.n.01 Reference measure
OFF
OFF- (measures)
P08.n.02 Function
Max
Max – Min – Min+Max
P08.n.03 Upper threshold
0
-9999 - +9999
P08.n.04 Multiplier
x1
/100 – x10k
P08.n.05 Delay
s
0
0.0 – 600.0
P08.n.06 Lower threshold
0
-9999 - +9999
P08.n.07 Multiplier
x1
/100 – x10k
P08.n.08 Delay
s
0
0.0 – 600.0
P08.n.09 Normal status
OFF
OFF-ON
P08.n.10 Latch
OFF
OFF-ON
Note: this menu is divided into 8 sections, for limit thresholds LIM1..8
P08.n.01 – Defines which measurement of the multimeter must be compared with
limits.
P08.n.02 – Function of the limit threshold. It can be:
Max = LIMn active when the measurement is higher than P08.n.03. P08.n.06 is
the reset threshold..
Min = LIMn active when the measurement is lower than P08.n.06. P08.n.03 is
the reset threshold.
Min+Max = LIMn active when the measurement is higher than P08.n.03 or is
lower than P08.n.06.
P08.n.03 e P08.n.04 - Used to define the upper threshold, that is made of the
value set in P08.n.03 multiplied by P08.n.04.
P08.n.05 - Trip delay on upper threshold.
P08.n.06, P08.n.07, P08.n.08 - Like above, referred to lower threshold.
P08.n.09 - Allows to invert the status of the limit LIMn.
P08.n.10 - Defines if the threshold remains latched and thus needs to be reset
manually (ON) or if it is reset automatically (OFF).
M09 – ALARMS
Default
Range
(ALAn, n=1..8)
P09.n.01 Alarm source
OFF
OFF-LIMx-INPx-BOOx
P09.n.02 Channel number (x)
1
1-8
P09.n.03 Latch
OFF
OFF-On
P09.n.04 Priority
Low
Low-High
P09.n.05 Text
ALAn
(Text – 16 char)
Note: this menu is divided into 8 sections, for alarms ALA1..8
P09.n.01 - Signal that generates the alarm. It can be the overcoming of a limit
threshold (LIMx), the activation of an external alarm (INPx), one Boolean logic
condition (BOOx).
P09.n.02 - Channel number (x) referred to the previous parameter.
P09.n.03 - Defines if the alarm remains latched and has to be reset manually
(ON) or if it automatically resets (OFF).
P09.n.04 - If the alarm has high priority, when it is activated the display page
switches automatically on the alarm page, and the alarm is shown with the
Warning icon. If instead the priority level is set to Low, the page does not change
and it is shown with the ‘information’ icon.
P09.n.05 - Free text of the alarm. Max 16 chars.
M10 – COUNTERS
CNTn (n=1..4)
P10.n.01 Counter source
P10.n.02 Channel number (x)
P10.n.03 Multiplier
P10.n.04 Divider
P10.n.05 Counter description
P10.n.06 Unit of measure
Default
Range
OFF
1
1
1
CNTn
Umn
OFF-ON-INPx-LIMx-BOOx
1-8
1-1000
1-1000
(Text – 16 chars)
(Text – 6 chars)
p. 17 / 24
Note: this menu is divided into 4 sections, for counters CNT1..4
P010.n.01 = Signal that causes the increment of the counter (on rising edge). It
can be the power-on of the multimeter (ON), the overcoming of a limit threshold
(LIMx), the activation of an external input (INPx), one logic combination (BOOx).
P010.n.02 = Number of the channel (x) referred to previous parameter.
P010.n.03 = Multiplying factor. The The pulse count is multiplied by this
coefficient before being displayed.
P010.n.04 = Dividing factor. The pulse count is divided by this coefficient before
being displayed. If different from 1, then the counter is displayed with 2 decimal
digits.
P10.n.05 = Description of the counter. Free text 16 characters.
P10.n.06 = Unit of measure of the counter. Free text 6 characters.
M10 – PULSES
Default
Range
PULn (n=1..5)
P11.n.01 Source measurement
kWh+
kWh+,kWh-,kvarh+,kvarh-,kVAh
P11.n.02 Count unit
100
10/100/1k/10k
P11.n.03 Pulse duration
0.1
0.01-1.00
Note: this menu is divided into 5 sections, for energy count pulses PUL1..5
P11.n.01 = Type of energy to which the pulse is linked to.
P11.n.02 = Quantity of energy for each pulse. (e.g. 10Wh, 100Wh, 1kWh etc.).
P11.n.03 = Pulse duration.
M12 – BOOLEAN LOGIC
(BOOn, n=1..8)
P12.n.01 Operand 1
Default
M13 – INPUTS
(INPn, n=1..8)
P13.n.01 Input function
UoM
M14 – OUTPUTS
(OUTn, n=1..8)
P14.n.01 Output function
UoM
Range
OFF
OFF-LIMx-INPx-OUTx-REMxBOOx
P12.n.02 Channel number (x)
1
1–8
P12.n.03 Logic operator 1
--- - - - AND – OR – EXOR – AND
NOT – OR NOT EXOR NOT
P12.n.04 Operand 2
OFF
OFF-LIMx-INPx-OUTx-REMxBOOx
P12.n.05 Channel number (x)
1
1–8
P12.n.06 Logic operator 2
--- - - - AND – OR – EXOR – AND
NOT – OR NOT EXOR NOT
P12.n.07 Operand 3
OFF
OFF-LIMx-INPx-OUTx-REMxBOOx
P12.n.08 Channel number (x)
1
1–8
P12.n.09 Logic operator 3
--- - - - AND – OR – EXOR – AND
NOT – OR NOT EXOR NOT
P12.n.10 Operand 4
OFF
OFF-LIMx-INPx-OUTx-REMxBOOx
P12.n.11 Channel number (x)
1
1–8
Note: this menu is divided into 8 sections, for Boolean variables BOO1..8
P12.n.01 = First operand of the Boolean logic.
P12.n.02 = Number of the channel (x) referred to previous parameter.
P12.n.03 = Logic operation between first and second operands.
P12.n.04 = Second operand.
From P12.n.05 to P12.n.11 – (see above).
Default
Range
OFF-ON-LOCKSYNC-TAR-A –
TAR-B
P13.n.02 Normal status
OFF
OFF-ON
P13.n.03 On delay
s
0.05
0.00 – 600.00
P13.n.04 OFF delay
s
0.05
0.00 – 600.00
Note: this menu is divided into 8 sections, for digital inputs INP1..8
P13.n.01 = Input function:
OFF – Input disabled
ON – Input enabled, used as a source for counters, Boolean logic, etc.
LOCK – Settings lock. Does not allow access to both levels.
SYNC – Synchronisation for power/energy integration.
TAR-A, TAR-B – Energy tariff selection. See Energy tariffs chapter.
P13.n.02 = Normal status of the input. Allows to invert the INPn activation logic.
P13.n.03 – P13.n.04 = Delay on activation – deactivation of the input. Allow to
filter the input status to avoid bouncing.
.
P14.n.02
P14.n.03
Channel number (x)
Idle status
OFF
Default
Range
OFF
OFF-ON-SEQLIMx-BOOx-ALAxPULx-REMx
1–8
OFF-ON
1
OFF
p. 18 / 24
Note: this menu is divided into 8 sections, for digital outputs OUT1..8
P14.n.01 = Function of the output:
OFF – Output disabled
ON – Output always enabled
SEQ – Output enabled in case of wrong phase sequence
LIMx – BOOx – ALAx – PULx – REMx – Output linked to the status of the
programmed variable. Allows to connect the status of an output to the status of a
limit threshold, a Boolean variable, an alarm, etc.
P14.n.02 = Number of the channel (x) referred to previous parameter.
P14.n.03 = Normal status of the output. Allows to reverse the logic of the output
function.
M15 – USER-DEFINED PAGES
Default
Range
(PAGn, n=1..4)
P15.n.01 Page enabling
OFF
OFF – ON
P15.n.02 Title
PAGn
(Text – 16 char)
P15.n.03 Measurement 1
OFF
OFF- (measurements)
P15.n.04 Measurement 2
OFF
OFF- (measurements)
P15.n.05 Measurement 3
OFF
OFF- (measurements)
P15.n.06 Measurement 4
OFF
OFF- (measurements)
Note: this menu is divided into 4 sections, for user pages PAG1..4
P15.n.01 = Enables user page PAGn.
P15.n.02 = Title of the user page. Free text, 16 chars.
P15.n.03, P15.n.04, P15.n.05, P15.n.06 = Measurement that will be shown in the
four frames of the user page.
M16 – ANALOG INPUTS
(AINn, n=1..8)
P16.n.01 Input type
Default
M17 – ANALOG OUTPUTS
(AOUn, n=1..8)
P17.n.01 Output type
Default
Range
OFF
OFF
0..20mA
4….20mA
0…10V
-5V…+5V
PT100
P16.n.02 Start of scale value
0
-9999 - +9999
P16.n.03 Multiplier
x1
/100 – x10k
P16.n.04 Full scale value
0
-9999 - +9999
P16.n.05 Multiplier
x1
/100 – x10k
P16.n.06 Description
AINn
(Text – 16 caratteri)
P16.n.07 Unito of measure
UMn
(Text – 6 caratteri)
Note: this menu is divided into 8 sections, for analog inputs AIN1...AIN8
P16.n.01 = Specifies the type of the analog sensor connected to analog input.
Depending on the selection, the sensor must be wired to proper terminals. See
expansion module manual.
P16.n.02 and P16.n.03 = Define the value to be displayed when the signal of the
sensori s at the minimum, that is at the beginning of the selected range (0mA, 0V,
-5V etc.). these parameters are ignored when using PT100 sensors.
P16.n.04 and P16.n.05 = Define the value to be displayed when the signal of the
sensori s at the maximum, that is full-scale of the selected range (20mA, 10V,
+5V etc.). these parameters are ignored when using PT100 sensors.
P16.n.06 = Description of the measure linked to the analog input. Free text ,16
characters.
P16.n.07 = Description of the measure linked to the analog input. Free text, 6
characters.
Range
OFF
OFF
0..20mA
4….20mA
0…10V
-5V…+5V
P17.n.02 Reference measure
OFF
OFF- (measures)
P17.n.03 Start of scale value
0
-9999 - +9999
P17.n.04 Multiplier
x1
/100 – x10k
P17.n.05 Full scale value
0
-9999 - +9999
P17.n.06 Multiplier
x1
/100 – x10k
Note: this menu is divided into 8 sections, for analog outputs AOU1...AOU8
P17.n.01 = Defines the type of the analog sensor connected to analog input.
Depending on the selection, the sensor must be wired to proper terminals. See
expansion module manual.
P17.n.02 = Electrical parameter that controls the value of the analog output.
P17.n.03 and P17.n.04 = Define the value of the electrical parameter that
corresponds to an output to the minimum of the range (0mA, 0V, -5V, etc.).
P17.n.05 and P17.n.06 = Define the value of the electrical parameter that
corresponds to an output equal to the maximum of the range (20mA, 10V, +5V,
etc.).
p. 19 / 24
Commands menu
• The commands menu allows executing some occasional operations
like reading peaks resetting, counters clearing, alarms reset, etc.
• If the Advanced level password has been entered, then the commands
menu allows executing the automatic operations useful for the device
configuration.
• The following table lists the functions available in the commands
menu, divided by the access level required.
Cod.
COMMAND
C.01
RESET HI-LO
C.02
RESET MAX DEMAND
C.03
C.05
RESET PARTIAL
ENERGY METER
RESET PARTIAL
HOUR COUNTER
RESET COUNTERS
C.06
RESET TARIFFS
C.07
RESET ALARMS
C.08
RESET LIMITS
C.11
RESET TOTAL
ENERGY METER
RESET TOTAL HOUR
COUNTERS
PARAMETERS TO
DEFAULT
PARAMETERS
BACKUP
PARAMETERS
RESTORE
WIRING TEST
C.04
C.12
C.13
C.14
C.15
C.16
ACCESS
LEVEL
User /
Advanced
User /
Advanced
User /
Advanced
User /
Advanced
User /
Advanced
User /
Advanced
User /
Advanced
User /
Advanced
Advanced
Advanced
Advanced
Advanced
Advanced
Advanced
DESCRIPTION
Reset of HI and LO peaks of
all readings.
Reset of Max Demand of all
readings.
Clears partial Energy meters.
Clears partial hour counter.
Clears counters
Clears tariff Energy meters
Clears alarms with latch
Clears limit thresholds with
latch
Clears total, partial and tariffs
energy meters.
Clears total and partial hour
counters
All setup parameters are
resetted to factory default value
Saves a backup copy of all
setup parameters
Restores the setup parameters
to backup values
Carries out the wiring test in
order to check proper wiring of
the DMG. See wiring test
chapter
• Once the required command has been selected, press to execute
it. The device will prompt for a confirmation. Pressing again, the
command will be executed.
• To cancel the command execution press MENU.
• To quit command menu press MENU.
Wiring test
• The wiring test allows to verify if the connection of the DMG device has
been executed properly.
• To be able to execute the test, the device must be connected to an
active plant, with the following conditions:
o three-phase system with all phases presence (V > 50VAC PH-N)
o current flowing in each phase > 1% of the CT primary.
o positive flow of energies (that is a normal plant where the
inductive load draws power from the supplier).
• To launch test execution, enter command menu and select the
required command per commands menu instructions.
• The test allows to verify the following points:
o reading of the three phases
o phase sequence
o voltage imbalance
o reverse polarity of each CT
o mismatch between voltage and current phases.
• If the test does not succeed, the display shows the reason of the
failure.
• If instead the test succeeds, then the condition is stored in the nonvolatile memory, and a message that states the test successfully
completed is shown in the information page.
Test sequence
Test result
p. 20 / 24
Technical characteristics
Auxiliary supply
Rated voltage Us
Operating voltage range
Frequency
Power consumption/dissipation
Immunity time for microbreakings
Voltage inputs
Type of input
Maximum rated voltage Ue
UL rating
Measurement range
Frequency range
Method of measuring
Method of connection
Current inputs
Rated current Ie
Measuring range
Type of input
Measuring method
Overload capacity
Overload peak
Burden (per phase)
Accuracy
Voltage
Current
Active Energy
Ambient conditions
Operating temperature
Storage temperature
Relative humidity
Maximum pollution degree
Measurement category
Overvoltage category
Altitude
Insulation voltage
Rated insulation voltage Ui
Rated impulse withstand voltage Uimp
100 - 440V~
110 - 250V=
90 - 484V~
93,5 - 300V=
45 - 66Hz
10VA 3.1W
≥50ms
Three phase + neutral
690V~ phase-phase 400V~ L-N
600V~ phase-phase 347V~ L-N
20 - 830V~ L-L
10 - 480V~ L-N
45 - 66Hz
True RMS value
Single-phase, two-phase, threephase with or without neutral or
balanced three-phase system.
1A~ or 5A~
for 5A scale: 0.005 - 6A~
for 1A scale: 0.001 – 1.2A~
Shunt supplied by an external
current transformer (low voltage).
Max. 5A
True RMS value
+20% Ie
50A for 1 second
≤ 0.6W
± 0.2% (50…830V~)
± 0.2% (0.1…1.1In)
Class 0.5S IEC/EN 62053-22
-20 - +60°C
-30 - +80°C
<90%
Degree 2
III
3
≤2000m
690V~
9.5kV
Power frequency withstand voltage
5,2kV
Auxiliary supply and voltage input connections
Type of terminal
Screw (removable)
Number of terminals
4 for voltage inputs
2 for Aux supply
Conductor cross section (min… max)
0.2…2.5 mm²
(24 - 12 AWG)
Tightening torque
0.5 Nm (4.5 lbin)
Current Input connections
Type of terminal
Screw (fixed)
Number of terminals
6 for external CT connection
Conductor cross section (min… max)
0.2…4 mm²
(26 - 10 AWG)
Tightening torque
0.8 Nm (7 lbin)
Housing
Polyamide RAL7035
Material
Version
Flush mount per IEC 61554
Dimension w x h x d
96 x 96 x 80 mm
Cutout
92 x 92 mm
Degree of protection
IP54 on front
IP20 housing and terminals
Certifications and compliance
IEC/EN 61010-1:2001, IEC/EN 61000-6-2:2005,
Reference standards
EN 61000-4-3:2006, EN 61000-6-3:2001,
IEC/EN 62053-21, IEC/EN 62053-22,
IEC/EN 62053-23, IEC/EN 60068-2-61:1993,
IEC/EN 60068-2-78, IEC/EN 60068-2-6,
IEC 60068-2-27, UL508, C22.2-N°14-95,
CEI EN 50470-3
cULus approval
Pending
The “Auxiliary supply” circuit becomes CAT 2 when connected to a line with a
phase-neutral voltage higher than 300V.
p. 21 / 24
Installation
• DMG800 is designed for flush-mount installation according to IEC
61554.
• Insert the device into the panel hole, making sure that the gasket is
properly positioned between the panel and the device front frame.
• From inside the panel, for each four of the fixing clips, position the clip
in one of the two sliding guide, then press on the clip corner until the
second guide snaps in.
• Push the clip forward pressing on its side and making it slide on the
guides until it presses completely on the internal surface of the panel.
• Repeat the same operation for the four clips.
• In case it is necessary to dismount the multimeter, lift the central lever
of the clip in order to release it, then pull backward on the guides until
it slips off.
• For the electrical connection see the wiring diagrams in the dedicated
chapter and the requirements reported in the technical characteristics
table.
• Once the wiring is completed, it is possible to mount the terminal
covers supplied with the instrument. These terminal covers are
sealable, making impossible the tampering of the instrument and/or the
access to the screw terminals.
• To install the terminal covers insert the side hooks into their housing
and apply a light pressure until they snaps in. Be aware of the match
between the terminal block and the proper terminal cover.
• The locking of the terminal covers must be done inserting the proper
wire in the side loops and applying the seal.
p. 22 / 24
Wiring diagrams
Connessione bifase
2-phase connection
P01.07 = L1-N-L2
TA1
L1
TA2
L
O
A
D
L2
N
100...440VAC
110...250VDC
--
+
A1
A2
AUX SUPPLY
V1 V2 V3 VN
S1 S2
S1 S2
S1 S2
I1
I2
I3
VOLTAGE
CURRENT
Connessione trifase bilanciata con o senza neutro
Balanced 3-phase connection whit or without neutral
P01.07 = L1-L2-L3-N-BIL L1-L2-L3-BIL
TA1
L1
L
O
A
D
L2
L3
N
100...440VAC
110...250VDC
--
+
A1
A2
AUX SUPPLY
V1 V2 V3 VN
S1 S2
S1 S2
S1 S2
I1
I2
I3
VOLTAGE
CURRENT
Connessione ARON 3 fasi senza neutro
ARON connection 3-phase without neutral
P01.07 = L1-L2-L3
TA1
L1
L2
TA3
L3
L
O
A
D
100...440VAC
110...250VDC
--
+
A1
A2
AUX SUPPLY
V1 V2 V3 VN
S1 S2
S1 S2
S1 S2
I1
I2
I3
VOLTAGE
CURRENT
Connessione trifase senza neutro mediante TV
3 phase connection without neutral via VT
Impostare P01.04, P01.05 e P01.06 – Set P01.04, P01.05 and P01.06
P01.07 = L1-L2-L3
TA1
L1
TA2
L2
TA3
L3
100...440VAC
110...250VDC
--
+
A1
A2
AUX SUPPLY
L
O
A
D
TV
V1 V2 V3 VN
S1 S2
S1 S2
S1 S2
I1
I2
I3
VOLTAGE
CURRENT
NOTES
1. Recommended fuses:
Aux supply and measure inputs voltage: 1Amp. fast
2. S2 terminals are internally interconnected.
p. 23 / 24
Terminals position
ON
1
2
I1
S1
A1/-
A2/+
V1
I2
S2
S1
V2
I3
S2
S1
V3
S2
VN
Mechanical dimensions (mm)
www.klinkmann.com
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tel. +371 6738 1617
[email protected]
Helsinki
tel. +358 9 540 4940
[email protected]fi
St. Petersburg
tel. +7 812 327 3752
[email protected]
Moscow
tel. +7 495 641 1616
[email protected]
Yekaterinburg
tel. +7 343 376 5393
[email protected]
Samara
tel. +7 846 273 95 85
[email protected]
Кiev
tel. +38 044 495 33 40
[email protected]
Vilnius
tel. +370 5 215 1646
[email protected]
Tallinn
tel. +372 668 4500
[email protected]
Мinsk
tel. +375 17 200 0876
p. 24 / 24
[email protected]
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