KMB SMY-CA User manual

KMB systems, s. r. o.
Dr. M. Hor´akov´e 559, 460 06 Liberec 7, Czech Republic
E-mail: [e-mail], Web: www.kmb.cz
Operating Manual for
SMY-CA
version 2.0
6/2016
The complete and most actual version of this manual is available online at http://www.KMB.cz/
Contents
1 General Description 1
2 Operating the Meter 2
2.1 Safety requirements when using SMY-CA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Instrument overload warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3 Installation ................................................ 2
2.3.1 Connection step by step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3.2 Disconnection........................................... 4
2.3.3 Communication peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Lock/unlock the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4.1 Locking the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4.2 Unlocking the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 Basicinstrumentsetup.......................................... 6
2.5.1 Installation type and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5.2 Communication options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5.3 Time and date options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 DownloadingdatatoPC......................................... 8
2.7 Energymeterreadings.......................................... 8
3 Technical Specifications 9
3.1 BasicParameters............................................. 9
3.2 MeasuredQuantities........................................... 11
4 Maintenance and Service 14

1 General Description
The portable power analyser SMY-CA is specially designed for monitoring of energy and power quality in
advanced power systems and smart grids. It uses standard USB port for local configuration and data acquisition
and also Ethernet for communication with remote control systems.
It is equipped with three voltage inputs and three current inputs for current sensors with X/333mV outputs.
Warning ! The X/333 mV, options is specially designed to be used only in combination with provided
external current sensors which are supported with the respective option.
SMY-CA is based on SMY 133 panel power meter and shares most of its features.
Basic set of SMY-CA contains following
 SMY-CA power analyser
 4 wire voltage probe SMY-CU3 with built-in fuses
 4 pcs of croco-clips XKK-1001
 5m UTP ethernet cable ETH5m with IP65 rated screw type connector from one side
multifunctional panel meter
SMY 133 multifunctional panel meter
ETH5m
SMY-CA XKK-1001
SMY-CU3
Figure 1
There are also range of different optional current sensors available (see. Table 1)
1

Sensor Model Inom [A] d [mm] Description
CA-JRF MOI 333M-80 100 100 A 80 mm Flexible current sensor, max. 100A, diameter 80mm, 3 in IP65 bayonet locking connector
CA-JRF MOI 333M-80 300 300 A 80 mm Flexible current sensor, max. 300A, diameter 80mm, 3 in IP65 bayonet locking connector
CA-JRF MOI 333M-115 100 100 A 115 mm Flexible current sensor, max. 100A, diameter 115mm, 3 in IP65 bayonet locking connector
CA-JRF MOI 333M-115 300 300 A 115 mm Flexible current sensor, max. 300A, diameter 115mm, 3 in IP65 bayonet locking connector
CA-JRF MOI 333M-115 1000 1000 A 115 mm Flexible current sensor, max. 1000A, diameter 115mm, 3 in IP65 bayonet locking connector
CA-JRF MOI 333M-115 2500 2500 A 115 mm Flexible current sensor, max. 2500A, diameter 115mm, 3 in IP65 bayonet locking connector
Sensors with Inom above 2500A on request.
Table 1: Current sensor options
2 Operating the Meter
2.1 Safety requirements when using SMY-CA
Warning !: When working with the instrument it is necessary to perform all necessary measures for the
protection of persons and property against injury and electric shock.
 The device must be operated by a person with all required qualifications for such work and this person
must know in detail the operation principles of the equipment listed in this description!
 When the device is being connected to the parts which are under dangerous voltage it is necessary to comply
with all the necessary measures to protect users and equipment against injury with electrical shock.
 Person, performing the installation or maintenance of the instrument must be equipped with and must use
personal protective clothing and tools.
 If the analyzer is used in a manner not specified by the manufacturer, the protection provided by the
analyzer may be impaired.
 If the analyzer or its accessories appear to be impaired or not functioning properly, do not use it and send
it in for repair.
2.2 Instrument overload warning
When connecting to the measured voltage using croco clips it is necessary to pay more attention to correct
connection of conductor N (neutral, blue).
Warning !: An incorrect connection of the conductor N to one of phase voltages causes built-in power
supply overload and serious damage of the instrument!!!
It is always strongly recommended to connect first the conductor N (blue) to the network neutral conductor.
Then check this connection properly and only then connect other wires to the voltages of phases L1, L2, L3.
2.3 Installation
The instrument can be used only in networks with maximum voltages not-exceeding its maximum available
power supply voltage (see technical specifications). For its operation, the instrument requires supply voltage
which is provided directly from measured voltage of phase L1. If current measurement is required too, use
appropriate current sensors with 333mV output.
2

2.3.1 Connection step by step
1. Attach selected power cable to the instrument U connector and fasten it by mild tightening of the cap nut.
2. Check that recording control switch is in OFF position (O).
3. Now we will connect measured voltages to the instrument using voltage cable. In case of connection with
croco clips wearing insulation gloves is strongly recommended while connecting the cable to the points
of measurement! Use croco clips or magnetic adapters. Firstly connect the N (neutral, blue) wire to
the neutral conductor of measured network; now, this connection should be properly checked to avoid
confusion with any of the phase conductors! Then, connect the phase wire L1 (brown) to the measured
phase conductor and by looking at the instrument display check if it has started running. Finally, connect
remaining wires L2 (black) and L3 (grey)
4. Now you can check the connection on the instrument’s display – phase voltage magnitudes should corre-
spond to reality and in the phasor diagram phase rotating sequence can be verified.
5. If you want to measure currents as well, appropriate current sensors must be installed. During this, wearing
the insulation gloves is strongly recommended again! Generally, the current sensors are interchangeable.
But for better orientation we recommend to respect their marking – connect the brown sensor to the L1
current input, the black one to the L2 input and the gray sensor to the L3 input. Correct polarity must
be observed while connecting current sensors. The arrow on the current sensor must show the direction
of the nominal power flow (from the power source to point of consumption). After locking up the sensor
lock, adjust the sensor position on measured conductor in order that the lock is as far of the conductor as
possible – in such position the measurement accuracy is the best. Then we again recommend to check the
sensors connection on the instrument’s display – for example using the phasor diagram.
6. Now, if not already set, we will configure ratio of CTs and other settings through display or using EN-
VIS.Daq software.
7. Now we can do final verifycation of the conncetion. On the display we can list measured values of voltage
and current. If we have also laptot we can use ENVIS.Daq to connect via USB or Ethernet to check live
data.
8. If connection and configuration is correct, we can start the recording. To do so, switch recording control
switch located on front panel to ON position (I). Since now, both the recording and the electricity meter
operation is unblocked and measured values start being registered into the instrument archives.
3

L1
L2
L3
PE
N
230/400 V AC
50 / 60 Hz
VOLTAGE
3×230/400V ETHERNET
CURRENT
I1
I2
I3
multifunctional panel meter
multifunctional panel meter
Figure 2: Typicall connection of SMY-CA in LV network
2.3.2 Disconnection
After recording of measurement for the desired period of time has been completed, it is necessary to disconnect the
instrument from the points of measurement and transfer the data recorded to a computer. When disconnecting,
the same precautions must be observed as those for connecting it and carry out all the steps in reversed order.
1. Turn off recording by switching recording control button to OFF position (O).
4

2. Disconnect all voltage cables and current sensors in revers order to connection – firstly from the points of
measurement, then you can disconnect cables from the instrument.
2.3.3 Communication peripherals
USB communication port for USB slave is located on the front panel. This communication port is intended
for easy local configuration and fast download of archived data to the local PC. Use the supplied USB cable only
(USB-A/mini). SMY-CA is a USB 2.0 slave device. For correct operation it needs a driver installed in your
operating system (see the ENVIS user guide for more info).
Ethernet interface 10Base-T Ethernet interface with RJ-45 connector described ETH is situated in front
part of the case from side of the connectors. Ethernet interface can be used for connection of the device to LAN
and for easy connection of remote control PC.
2.4 Lock/unlock the instrument
From the manufacturer the instrument is shipped in an unlocked state. It is however possible to lock the
instrument so as to prevent any unwanted modifications of its configuration by aliens.
2.4.1 Locking the instrument
1. press the button Âin the default start screen
2. choose lock/unlock symbol with buttons Ãand Ä. Unlocked instrument presents open lock symbol.
3. press button Âand enter the locking/unlocking sub-menu of the instrument. It displays Unlocked: $
4. press Âand choose lock option. Symbols " and $ will be displayed
5. chose requested new state ( " ...locked) by pressing Ãand Ä
6. confirm your selection with pressing button Â
7. leave the locking screen by pressing button À
8. press button Áand confirm locking of the instrument. Your SMY-CA is now locked and all local modifi-
cations of configuration are not allowed.
2.4.2 Unlocking the instrument
1. press button Âin the default start screen
2. choose lock/unlock symbol with buttons Ãand Ä. Locked instrument presents closed lock symbol
3. press button Âand enter the locking/unlocking sub-menu of the instrument. It displays Locked: "
4. press Âand choose lock option. PIN code entry field will be displayed on locked instruments
5. enter the PIN code (instrument serial number) by pressing buttons Á,Ãand Ä
6. press button Âto confirm the choice
5

Figure 3: Screen of the SMY-CA : button À- without function, Á- without function, Â- menu, Ã- up arrow
rotates displayed screens, Ä- down arrow rotates displayed screen. Default start-up screen is on the left.
(a) Main menu of the instrument. (b) Special user defined split screen dis-
plays data compacted.
(c) Graphical display of the measured har-
monics (here phase voltage).
Figure 4: Examples of different actual data displayed on screen of the SMY-CA instrument.
7. leave the locking menu with button À
8. press button Áand confirm locking of the instrument. Your SMY-CA is now unlocked and all local
modifications are allowed.
2.5 Basic instrument setup
To navigate the screen and to configure the SMY-CA instrument locally there is 5 multifunction buttons located
under the display area. its actual function is dynamic and is symbolized by a pictogram on the lower edge of
the screen above each button (fig. 3). For intention of use in this manual we are referring to these buttons as
button Àto Äfrom left to right.
In general buttons Ãand Äare navigational buttons. Button Âis alternating Confirm function and Return
to main menu function. Buttons Àand Áare either without function or they provide navigation and other
functions in the context of each screen.
2.5.1 Installation type and options
1. turn on the instrument and wait until it boots up. Start-up screen will be displayed (fig. 3).
2. press button Â- main menu is displayed (fig. 4a). Buttons Á,ÃaÄnavigate selection cursor in this
screen. Button Âpicks the highlighted menu item. Button Àreturns back in the menu level.
3. press multiple times button Äand choose settings symbol - green french key.
6

(a) Configuration menu of the SMY-CA
analyzer.
(b) Setting up the display options. (c) Setting up the basic installation pa-
rameters of an instrument.
(d) Setting up the RS485 serial commu-
nication option.
(e) Setting up the Ethernet communi-
cation option.
(f) Setting up the time, date and time
synchronization options.
Figure 5: Set up screens of the SMY-CA analyzer.
4. press button Â. Configuration screen will be displayed (fig. 5a)
5. press multiple times button Äand select Install Config item.
6. press button Â.Install Config screen is displayed.
7. select Connection Type according to the physical connection of the instrument.
8. insert correct value of voltage and current transformer ratio according to the used VT and CT.
9. press button Àand accept the settings modifications on a displayed screen.
10. press button Áto confirm the change or button Ãto cancel the previous modifications.
2.5.2 Communication options
1. select the Communication item in menu
2. confirm ETH or RS-485 configuration according to the instrument option
(a) ETH: enter IP address, network mask and gateway.
(b) RS-485: enter communication line parameters according to your setup
2.5.3 Time and date options
1. select the Time and Date item in menu
7

2. enter time and date value, valid at the time of end of editing.
3. select if instrument uses Summer Time option.
4. choose the valid Time Zone
5. Time Synchronization is usually not required.
Now the instrument is configured and is ready to be used in typical application.
2.6 Downloading data to PC
Connect the instrument to the PC and run ENVIS.Daq application. Select the appropriate communication
option and connect to the instrument. In the next screen press Refresh All. This will load and display the actual
status of each supported archive.
Device Information section contains editable description and name under which the actual record is stored.
Time Frame for Other Archives tab allows you to limit the date ranges of all archives by the time interval of the
main archive. In the Destination section the actual storage can be selected - either to the SQL database or to
the file. The check boxes in Archives to Download determines which specific archive(s) you want to download.
The actual download will start by pressing the Download All button. progress is displayed on screen. When
finished the archive can be viewed in the ENVIS application. User can open the downloaded file directly from
ENVIS.Daq.
2.7 Energy meter readings
SMY-CA has an embedded three phase, four-quadrant energy meter with automatic meter reading functions and
multiple programmable tariffs (Time-of-Use, TOU). The instrument registers active energy (EP, EP+, EP-) and
reactive energy (EQL, EQC or EQC+, EQC-, EQL+, EQL-). According to the configuration of meter readings
are shuffled to the respective tariffs. It automatically provides summaries per phase. For star connections and
single phase measurements it can also register energy for each phase separately.
Readings can be displayed on the instrument screen. Basic hierarchy is shown on the fig. 6 — button Â
enters the main instrument menu, use buttons Ãand Ä) to navigate to electricity meter icon, press button Â
again and enter the meter reading screen (fig. 6a). Meter data readings can be downloaded and analyzed in
ENVIS or via the standard ModBus protool in any other system.
8

(a) Three phase registers of active and re-
active energy - sums of quadrants.

(b) Three phase active energy + and -, re-
active energy displayed separately for each
quadrant.

(c) Active energy + and -, reactive energy
separately for each quadrant, values shown
for each phase separately.
Figure 6: Meter reading screens of SMY-CA . Scrolling the instrument screens vertically user lists meter readings
for each tarif and sums (EP, EQL+, EQL-, EQC+ a EQC-) and single phase (L1, L2 and L3) values respectively.
3 Technical Specifications
3.1 Basic Parameters
Instrument Auxiliary Power Supply Voltage
1 ÷ 275 VAC 9 ÷ 35 VDC
power supply 8 VA / 3 W
overvoltage category III
pollution degree 2
connection isolated, polarity free
aux. voltage range
AC: f=4 ÷1 Hz; DC
„X/ mV“ Instrument Model Auxiliary Voltage for Current Sensors
connection non-isolated (connected with the instrument internal circuitry)
output voltage
maximum permanent load
short-circuit current, max. duration
+5 VDC ± 5 %
6 mADC
approx. 1 mADC, 5 seconds
9

Other Specifications
operational temperature - 2 to 6 °C
storage temperature - 4 to 8 °C
operational and storage humidity < 95 % - non-condensable environment
EMC – immunity
EMC – emissions
communication ports
communication protocols KMB, Modbus RTU and TCP, web server, DHCP
display colour TFT-LCD, 32 x 24 pixels
RTC : accuracy +/- 2 seconds per day
backup battery capacity > 5 years ( without supply voltage applied )
weight max. .3 kg
EN 61 – 4 - 2 ( 4kV / 8kV )
EN 61 – 4 - 3 ( 1 V/m up to 1 GHz )
EN 61 – 4 - 4 ( 2 kV )
EN 61 – 4 - 5 ( 2 kV )
EN 61 – 4 - 6 ( 3 V )
EN 61 – 4 - 11 ( 5 periods )
EN 55 11, class A
EN 55 22, class A (not for home use )
USB 2. , optional RS-485(1.2÷46 kBd), Ethernet 1 Base-T
protection class
front panel
back panel
IP 4 ( IP 54 with cover sheeting )
IP 2
dimensions
front panel
built-in depth
installation cutout
96 x 96 mm
8 mm
92+1 x 92+1 mm
10

3.2 Measured Quantities
Voltage characteristics
Frequency
5 / 6 Hz
measuring range 4 ÷ 7 Hz
uncertainty ± 1 mHz
Voltage
measuring range (line-to-line) 1 ÷ 275 VAC
measuring range (line-to-neutral) 173 ÷ 476 VAC
temperature drift
3 V CAT III
burden power ( impedance) < . 25 VA (Ri=3.6 MΩ)
Voltrage Unbalance
measuring range ÷ 1 %
measuring uncertainty ± .3
THDU
measuring range ÷ 2 %
measuring uncertainty ± .5
reference conditions
measuring range
measuring uncertainty twice the levels of class II acc. to IEC 61 –4-7 ed.2
fNOM– nominal frequency
intrinsic uncertainty (tA=23±2ºC) +/- . 5 % of rdg ± +/- . 2 % of rng
+/- . 3 % of rdg ± +/- . 1 % of rng / 1 ºC
measurement category
Harmonics (up to 50th order )
other harmonics up to 2 % of class 3 acc. to IEC 61 –2-4 ed.2
1 ÷ 1 % of class 3 acc. to IEC 61 –2-4 ed.2
11

Measured Quantities – Current, Temperature
Current
current input option „X/ mV“
I @ 333mV
measuring range . 2 ÷ .5 VAC
temperature drift
undefined
permanent overload 15 VAC
15 VAC
burden power ( impedance) < 3 µVA ( Ri>1 kΩ)
Current Unbalance
measuring range ÷ 1 %
measuring uncertainty ± 1 % of rdg or ± .5
reference conditions
measuring range
measuring uncertainty
THDI
measuring range ÷ 2 %
measuring uncertainty THDI <= 1 % : ± .6
THDI > 1 % : ± .6 % of rdg
Temperature (internal sensor, measured value affected by the instrument power dissipation)
measuring range - 4 ÷ 8 °C
measuring uncertainty ± 2 ºC
INOM (IB) – rated (basic) current
intrinsic uncertainty (tA=23±2ºC) +/- . 5 % of rdg ± +/- . 2 % of rng
+/- . 3 % of rdg ± +/- . 1 % of rng / 1 ºC
measurement category
peak overload
1 second, maximum repetition
frequency > 5 minutes
Harmonics & Interharmonics (up to 50th order )
other harmonics up to 1 % of class 3 acc. to IEC 61 –2-4 ed.2
5 % of class 3 acc. to IEC 61 –2-4 ed.2
Ih <= 1 % INOM : ± 1% INOM
Ih > 1 % INOM : ± 1% of rdg
12

Measured Quantities – Power, Power Factor, Energy
act. / react. power uncertainty
PF & cos φ uncertainty +/- . 5
act. / react. power uncertainty
PF & cos φ uncertainty +/- . 5
temperature drift of powers
Energy
measuring range
active energy uncertainty class .5S acc. to EN 62 53 – 22
reactive energy uncertainty class 2 acc. to EN 62 53 – 23
Active / Reactive Power, Power Factor (PF), cos φ ( PNOM = UNOM x INOM )
reference conditions “A” :
ambient temperature ( tA )
U, I
for active power, PF, cos φ
for reactive power
23 ±2 ºC
U = 8 ÷ 12 % UNOM, I = 1 ÷ 12 % INOM
PF = 1.
PF = .
± .5 % of rdg ± . 5 % PNOM
“reference conditions ”B” :
ambient temperature ( tA )
U, I
for active power, PF, cos φ
for reactive power
23 ±2 ºC
U = 8 ÷ 12 % UNOM, I = 2 ÷ 12 % INOM
PF >= .5
PF <= .87
± 1 % of rdg ± . 1 % PNOM
+/- . 5 % od rdg ± +/- . 2 % PNOM / 1 ºC
corresponds to U & I measuring ranges
4 quadrant energy counters for both active and reactive energies
13

4 Maintenance and Service
Maintenance: the SMY-CA power analyzer does not require any maintenance during its operation. For
reliable operation it is only necessary to meet the operating conditions specified and not expose the instrument
to violent handling and contact with water or chemicals which could cause mechanical damage.
The lithium cell built in the instrument can backup a real time circuit for more than 5 years without power
supply, at average temperature 20 ° Cand load current in the instrument less than 10 µA. If the cell is empty, it
is necessary to ship the instrument to the manufacturer for battery replacement.
Service: in the case of failure or a breakdown of the product, you should contact the supplier at their address:
KMB Systems, s. r. o.
Tˇr. dr. M. Hor´akov´e 559
460 05 Liberec 7
Czech Republic
Tel. [phone], Fax [phone]
E-mail: [e-mail], Web: www.kmb.cz
The product must be in proper packaging to prevent damage during transit. A description of the problem
or its symptoms must be delivered together with the product.
If a warranty repair is claimed, the warranty certificate must be sent in. In case of an out-of-warranty repair
you have to enclose an order for the repair.
14