Page 1
Electromagnetic Field Meter
SMP2
V 2.01
Safety, Quality, Service
+34 93 320 80 55
www.wavecontrol.com
info@wavecontrol.com
USER’S MANUAL
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Electromagnetic Field Meter
Congratulations for your acquisition
of a Wavecontrol SMP2.
This Manual provides you with instructions
for using and handling your SMP2.
Please read this Manual carefully before
using your SMP2.
Product specications and descriptions in this document depend on the
rmware version and are subject to change without notice.
Disclaimer
Use of the product is controlled exclusively by the product manual (this document)
and the product warranty. Wavecontrol assumes no responsibility or liability of
any kind for errors or omissions in the contents of this document. Although the
information contained herein is correct to the best of Wavecontrol’s knowledge, it is
provided with no guarantees of completeness, accuracy, usefulness or timeliness
and without any warranties of any kind, express or implied. Wavecontrol provides all
content in this document “AS IS” and “WITH ALL FAULTS.” No use of this document
or its contents shall be permitted without Wavecontrol’s prior consent.
® Names and Logo are registered trademarks of Wavecontrol, S.L.
Trade names are trademarks of the owners.
© Wavecontrol, S.L. 2018
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Index
1. WARNINGS AND PRECAUTIONS ..........................................................5
2. INTRODUCTION .......................................................................................6
3. FIRST STEPS ............................................................................................7
4. GETTING STARTED .................................................................................8
4.1 Overview ..........................................................................................8
4.2 Field probes ..................................................................................10
4.2.1 Connector type ...................................................................10
4.2.2 Screw connector ................................................................11
4.2.3 Push-pull connector ..........................................................11
4.3 External connections ..................................................................12
4.3.1 USB .......................................................................................12
4.3.2 Fibre optic ............................................................................12
5. SMP2 – INITIAL USE ............................................................................13
5.1 Switching the apparatus on and off .........................................13
5.2 Main screen ..................................................................................13
5.3 Menu screen .................................................................................16
5.4 MEASUREMENT OPTIONS screen ..........................................16
5.5 MEASUREMENT LOG screen .................................................. 20
5.6 GPS screen .................................................................................. 23
5.7 SETTINGS screen....................................................................... 24
6. FUNCTIONS ........................................................................................... 26
6.1 Measurement modes.................................................................26
6.1.1 Time domain measurement ............................................ 27
6.1.2 FFT mode - frequency domain measurements .......... 29
6.1.3 Single frequency time mode ........................................... 31
6.1.4 Spatial average ................................................................... 31
6.2 Time domain weighting ............................................................32
6.3 Alarm ............................................................................................ 32
6.4 GPS ............................................................................................... 32
7. BATTERY INFORMATIO N .................................................................... 33
7.1 General information .................................................................... 33
7.2 Recharging ................................................................................... 33
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8. SMP2 READER SOFTWARE ............................................................... 34
8.1 Installation .................................................................................... 34
8.2 System requirements ................................................................ 35
8.3 Using the software ..................................................................... 35
8.3.1 Measurements screen ..................................................... 36
8.3.2 Screenshots screen .......................................................... 37
8.3.3 Information screen ...........................................................37
8.3.4 Exporting spreadsheets .................................................. 37
8.3.5 Control centre screen ....................................................... 39
8.4 Live measurements ................................................................... 40
9. SOFTWARE AND FIRMWARE UPDATES .......................................... 41
9.1 SMP2 Reader (PC software) update ....................................... 41
9.2 SMP2 rmware update. ............................................................ 41
10. MAINTENANCE ...................................................................................43
10.1 Cleaning the device and the screen ...................................... 43
10.2 Handling the device ................................................................. 43
10.3 Regular recalibration ............................................................... 43
11. TECHNICAL SPECIFICATIONS .........................................................44
APPENDIX 1. AVAILABLE PROBES ........................................................ 45
APPENDIX 2. APPLICATIONS ................................................................ 46
APPENDIX 3. STATIC FIELD MEASUREMENTS: WPH-DC ............... 49
APPENDIX 4. WEIGHTED PEAK METHOD .......................................... 51
APPENDIX 5. RADAR MEASUREMENTS ............................................. 61
APPENDIX 6. COMMUNICATION PROTOCOL .................................... 62
APPENDIX 7. WAVECONTROL INTRANET .......................................... 68
DECLARATION OF CONFORMITY (DOC) ............................................. 69
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Environmental information
Disposal of your old product:
Your product is designed and manufactured with
high quality materials and components, which
can be recycled and reused.
When this crossed-out wheeled bin symbol is
attached to a product it means the product is
covered by the European Directive 2002/96/EC.
Please get informed about the local separate
collection system for electrical and electronic
products.
Please act according to your local rules and
do not dispose of your old products with your
normal household waste. The correct disposal
of your old product will help prevent potential
negative consequences for the environment and
human health.
1. WARNINGS AND PRECAUTIONS
Review this manual and become familiar
with all the instructions for using and handling
your SMP2.
Your SMP2 is a portable apparatus with
a rechargeable battery. Before taking any
measurement, make sure that the battery is
sufciently charged for the time that you need
for the measurement. If it is not, recharge the
battery before.
Your SMP2 is not watertight and it should be
protected from moisture, such as rain.
Adjustment, maintenance or repair of the
equipment must be performed only by qualied
personnel. Please get in touch with Wavecontrol
or your sales contact.
Never overtighten when screwing the SMP2
on the tripod since the thread engagement could
break down.
The SMP2 is a professional measurement device
that must be calibrated to ensure that it works
properly. Check to make sure that its calibration is
valid at all times.
If you are unsure or need to recalibrate, please
contact your distributor or contact us at
service@wavecontrol.com (see section 10.3).
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Those measurements can be made quickly and
easily anywhere because the SMP2 is portable
and simple to handle and use.
The SMP2 can sample the eld level continuously
and store that data automatically in its built-in
memory at user-congured intervals with a
capacity of up to 1,000,000 samples.
The data stored in the memory can be easily
downloaded to a computer via a USB or ber
optics port for later processing.
The SMP2 is also available with a built-in GPS
receiver (optional) to allow each measurement to
be associated automatically with the geographic
location where it was taken.
The SMP2 is an instrument for measuring
electromagnetic elds. Its frequency range is
determined by the eld probe used. A range of
compatible probes is available, from DC (0 Hz) to
40 GHz.
It combines three instruments in one: static eld
measurements, broadband measurements and
selective measurements (FFT), including % direct
EMF exposure assessments to limit lines by using
the weighted peak method (WPM).
We have developed the SMP2 to meet the needs
for personal safety assessment in connection with
exposure to electromagnetic elds. Its versatility
makes it a perfect measurement tool for many
different sectors and industries such as Railway,
Power, Manufacturing, Chemical, Medical, Defence,
RFID and EAS, Telecommunications, etc.
There are three basic SMP2 models:
• Broadband: used with broadband probes.
• Selective: used with selective probes.
• Dual: used with all types of probes as it
combines both features.
Appendix 1 shows information on all the available
type of probes.
2. INTRODUCTION
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USB-f.o. converter (optional)
USB key
SMP2 (and battery
charger below)
Field Probe
Field Probe
Field Probe
Compartment for USB
cable, f.o. cable (optional),
documents, etc.
Adjustable shoulder strap
Figure 1: Case
3. FIRST STEPS
• SMP2.
• 1 or more electromagnetic eld probes.
• Battery charger.
• USB key containing the User’s Manual and
SMP2 software.
• USB – mini USB cable.
• Fibre optic link (optional).
If any of those components is missing, please
contact Wavecontrol at
service@wavecontrol.com
This section contains instructions for unpacking
and checking the equipment when you receive it.
1) When you receive the equipment, check the
packaging to see if it has been damaged in any
way. Make a description of any damage on the
delivery note before you sign it.
2) Check that all the components of the SMP2
are there. The SMP2 is delivered in a compact
briefcase that should contain the following
components:
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4. GETTING STARTED
4.1 Overview
The front panel of the SMP2 contains the user
interface, made up of the screen and keypad.
The keyboard presents 8 standard buttons, 4
virtual buttons (below the screen) and 1 ON/OFF
button.
Figure 2: Front
On/Off button
Main screen (see 5.2)
Virtual menu
Virtual buttons
Standard buttons
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The 8 standard buttons are the following:
• : These arrows allow you to move
through the menu options and the data stored
in memory.
• : allows to validate an option or enter in a
menu.
The top of the SMP2 holds the eld probe
connector.
Light sensor
On/Off button
Probe connector
Status LED
Integrated GPS patch
antenna
Figure 3: Top
• Probe connector: (see 4.2).
• On / Off button: switches the equipment on
and off.
• Status LED: when the unit is off, red means
charging, green charged. When the unit is on,
green LED should be always on.
• Light sensor: allows to control the automatic
screen back-light intensity depending on
ambient light.
• : always allows to come back to the main
screen (measuring screen).
• : allows to get back to an earlier menu or to
cancel a selection.
• : allows to take print-screens anytime.
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The bottom of the SMP2 holds the other
connections of the equipment.
Mini USB connector
Charger connector
Tripod ¼’ screw
Fibre optic connector
Figure 4: Bottom
• Mini USB connector and bre optics: allows
connection to a PC in order to:
• Download data stored in the SMP2 memory.
• Update rmware for the equipment.
• Control the unit remotely.
• Battery charger connector: allows the SMP2
battery to be recharged using the charger
supplied with the equipment.
• ¼’ screw connector: takes a ¼’ screw, the
standard screw used for most tripods, allowing
the SMP2 to be mounted on a tripod.
4.2 Field probes
The SMP2 is a highly versatile EMF measurement
device that requires connection of the proper
eld probe to obtain the best results for each
application. Only Wavecontrol eld probes will
work with the device.
If the device is switched on with no eld probe
attached, it will not show any eld value and
therefore no measurement will be saved
to memory. However, saved data and GPS
positioning functions will be available.
The SMP2 automatically detects the type of eld
probe and its calibration parameters.
4.2.1 Connector type
There are two types of connector: push-pull and
screw.
Figure 5: Push-pull connector
Figure 6: Screw connec tor
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4.2.2 Screw connector
4.2.2.1 How to connect the eld probe
Connect the eld probe by inserting the male
connector into the female connector with the tab
aligned. Once fully inserted, screw the connector
until it is snug, without forcing it.
Tab
Sleeve to screw on after
inserting the probe
Figure 7: How to connect the eld probe
4.2.2.2 How to disconnect the eld probe
You do not need to switch the device off before
disconnecting the probe. First unscrew the probe
connector, then pull the connector to remove it.
Important: pull the connector.
Do not try to twist or turn the probe tube.
4.2.3 Push-pull connector
4.2.3.1 How to connect the push-pull probe
With a push-pull connector, the eld probe is
connected by inserting the male connector into
the female connector of the SMP2 until it stops.
The polarity of the connector must be observed
and so the red marks on the male and female.
connectors must line up.
Figure 8: How to connect the eld probe
4.2.3.2 How to disconnect the eld probe
You do not need to switch the device off before
disconnecting the probe. Pull the connector of the
probe rmly with one hand (pulling with the thumb)
while you hold the SMP2 with your other hand as
shown in the pictures below:
Figure 9: How to disconnect the eld probe
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Note 1: no need to install additional software,
everything has been already installed with the main
software.
Note 2: in case the connector does not t into a small
waveguide, you can break the connector in 2 parts.
Important: pull the connector. Don’t pull any
other part of the probe!
Don’t try to twist or unscrew the probe.
4.3 External connections
4.3.1 USB
A USB to mini USB cable is delivered with the
SMP2. After installing the SMP2 software (rst
install the software see 8.1) just plug the cable to
the SMP2 and to the computer. You will be able to
download stored measurements to the computer
or update the SMP2 rmware.
Note: it is not recommended to perform
measurements while the USB is connected, it could
affect the quality of the readings.
4.3.2 Fibre optic
Breakable part see Note2
A bre optic link is available as an option in order
to remotely control and see live readings of the
instrument from a PC without interfering with the
measurements. To connect the bre optic link:
• Plug the bre to the SMP2 (respect the colour
code, grey side is looking up).
• Plug the bre to the USB to bre converter
(respect the colour code).
• Plug the USB of the converter to the PC.
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Note: All the device’s congurations (alarm level,
units, type of measurement, measurement interval,
etc.) are saved when it is switched off and recovered
automatically when it is switched on.
5.2 Main screen
The main screen provides instantaneous and
continuous information on the electromagnetic
eld being measured.
• Date and time: date and time of the apparatus.
• Icons: the below icons provide information
about the unit.
Alarm is activated USB is connected
Fibre connection
available
Scheduled measurement
activated
CF
Correction factors applied
Note: CF means the connected eld probe internal
correction factors are being applied.
• Battery : battery charge level.
Battery discharged
Battery charging
Battery fully charged
• Probe information: serial number of the
eld probe attached to the apparatus and its
frequency information.
5. SMP2 – initial use
The SMP2 is designed for simple and intuitive
operation with 2 basic functions:
• Time or frequency domain eld measurement.
• Storage of results in memory.
Several additional functions make the SMP2 a
very complete eld measurement system.
The SMP2 is controlled via the keypad and easy
access to data is available through the different
settings.
5.1 Switching the apparatus on and off
The apparatus is switched on and off with the
On / Off button located on the upper part of the
keyboard.
To power on the unit, click on the On/Off
button. The status LED will stay in red for some
milliseconds before turning green. A welcome
screen is displayed until the software completely
boots and shows the main screen.
To power off the unit, click once on the On/Off
button. A pop-up will appear on the screen to
conrm the command. F1 and F2 buttons will
conrm the action, F3 and F4 buttons will cancel
it. You can also select the option with the right
and left arrows and click on OK to conrm. You
can also switch the device off by pressing and
holding the On/Off button.
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Figure 10: Main screen
Measurement information:
• Maximum, minimum and average values: these
values are initialized when beginning a new log
or can also be initialized with the virtual button
“Reset”. Average value is updated depending on
the type of averaging and interval chosen in the
Measurement Options.
• Logging and average parameters:
1. Average window time.
2. Average type (sliding or tumbling).
3. Logging time.
Field information: (updated twice per second)
• Total eld: instantaneous total eld level.
Obtained, for three-axis probes as:
• The quadratic sum of each axis eld (for eld
intensity units):
222
ZYXTot
EEEE ++=
• The sum of each axis eld (for power density
units):
ZYXTot
SSSS ++=
Battery
Date and time
Probe information
Measurement information
Field information
Graph
GPS information
Functions
Icons
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Functions:
These menus depend on the probe connected but
general functions are as follows:
• Menu: access to the menu screen.
• Log: start a new measurement.
• Units: change the current units (this will reset
the min, max, average and graph). With the up
and down arrow you can select the unit. By
pressing OK the highlighted unit will be selected.
• Reset: it resets the min, max, average and
graph.
• Keypad Arrows in frequency mode:
• Right-left arrows shift the cursor by one step.
• Up-down arrows shift the cursor to the next
right or left peak found in the FFT:
Note: When there are more than 4 functions available,
the button on the right allows to show more functions
available.
• Field unit: unit of measurement of the eld
value shown on the display. This unit applies
to the total eld, the eld on each axis and the
maximum, minimum and average values.
• Field on each axis: the eld measured on each
axis for isotropic three-axis probes. Updated
twice per second.
Graph:
In the time domain:
It shows a graphical view of the temporal
evolution of the eld. It represents the last
measurements. This time scale can be modied
in the settings menu (graph timespan).
“MENU” “SETTINGS” “Graph timespan”
In the frequency domain:
it shows the frequency information of the signal
(horizontal axies value depend on the span).
Also a vertical line represents the position of the
cursor (with the associated information on the
right top side of the graph).
GPS information:
Positioning information provided by the GPS
receiver. This information is only displayed when
the GPS is switched on.
• Lat: latitude.
• Lon: longitude.
On the right side a colour indicates the quality of
the position:
• Red: bad.
• Orange: average.
• Green: good.
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5.4 MEASUREMENT OPTIONS screen
This screen is used to congure different
parameters related to measurement behaviour.
It appears as a menu with a scrolling bar.
The parameters to be congured are shown
on the left and the different options for each
parameter are shown on the right.
The keypad is used to move along the menu. The
process for changing the value of a parameter is:
• Run through the different parameters using the
arrows .
• To change a parameter, press Enter when the
cursor is on that parameter. A pop-up will
appear showing all the possible values.
• Run through the different values using the
arrows and click on OK to select the
desired value. (you can cancel with the back
button).
• When nished you can either press back to
return to the menu screen or press the home
button to come back to the main screen.
5.3 Menu screen
This is the main screen to access sub menus.
• MEASUREMENT OPTIONS (allows to change all
the parameters related to measurement).
• MEASUREMENT LOG (allows to see the stored
measurements).
• GPS (allows to change GPS parameters).
• SETTINGS (allows to change general
parameters of the unit).
• MESSAGES (in case some events are available
this menu will appear).
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HF BROADBAND QUICK SET-UP
• Standard: List of preselected standards.
This will affect other parameters that will
not be editable. For example: if you choose
ICNIRP standard then all the parameters in
"MEASUREMENT BEHAVIOUR" section will not
be editable as they are dened by the standard.
The following parameters can be congured:
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MEASUREMENT BEHAVIOUR
• Measurement time: allows to dene a
maximum time for the measurement. Available
values are: not limited, 1 min, 5 min, 6 min, 10
min, 15 min, 30 min, 1 h, 2 h, or custom from 1
second to 100 hours.
• Log interval: used to select the time interval for
storage of data in memory (see section 6.1.1). A
value will be stored every ‘Log interval’ seconds
(or minutes). The available intervals are 0.5 s, 1
s, 5 s, 10 s, 15 s, 30 s, 1 min and 6 min.
• Average type: two types of average are
available, tumbling or sliding. Tumbling
averages are taken at xed intervals, while
sliding averages are taken through sliding time
window. By way of an example, imagine that we
choose an average interval of 10 s. Since the
device takes 2 samples per second, in those 10
seconds we will have 20 samples. In the case
of tumbling averaging, we will have an average
of samples 1 to 20, another average of samples
21 to 40, and so on. In the case of sliding
averaging, we will have continuous averages
as the window advances over time. In other
words, we will have the same initial average
with samples 1 to 20, but then immediately
afterwards we will have another with samples
2 to 21, then another with samples 3 to 22, and
so on.
• Average interval: used to select the time
interval for calculation of the average. The
available intervals are 10 s, 15 s, 30 s, 1 min, 2
min, 5 min, 6 min, 10 min, 15 min and 30 min.
• Spatial average: choice between a single
temporal log or several spatial measurements
that will be represented in a column graphical
chart (see 6.1. 4).
POST-PROCESSING
This menu is only available with broadband
probes that have correction factors in memory. It
has 3 parameters:
• Enable correction: allows correction of
the value measured at a given frequency
(Working frequency dened below) using the
factors measured during the latest laboratory
calibration.
• Limit value for results in %: allows direct
reading of the eld as a % of a limit dened
on the main measurement screen. This is a
software calculation taking the limit value in
V/m and comparing it with the reading from
the probe. You can select the lowest limit
(minimum value) of the regulation (within
the band width of the probe) or a specied
frequency (Working frequency dened below).
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Note: If the minimum value is selected, no working
frequency can be dened and therefore the correction
factors cannot be activated.
• Working frequency: allows denition of the
working frequency for correction factors or
for calculation of the value as %. Where the
lower limit of the regulation is selected, this
parameter will show as “Not available”, since
it is not compatible with that selected mode.
SCHEDULE MEASUREMENT
Allows to program a scheduled measurement in
the following 24 hours.
• Enabled: Yes/No
• Start time: Sets a start time. If the unit is off, it
will go on at the programmed time and will run
the measurement.
ADVANCED OPTIONS
• Wait time before start: delay before the
measurement really starts (it allows the
technician to separate himself from the
equipment). Available values are No delay, 5 s,
10 s, 15 s, 20 s, 30 s, 1 min.
• Shut down after measurement: useful option
to power off the unit when measurement is
done. It avoids having to wait to power off the
unit manually.
• Printscreen on last sample: Allows to take a
screenshot at the end of the measurement.
When performing, for example, a 6-minute
average measurement, this last sample
screenshot will show the nal average result.
This image will be available for reporting with
the SMP2 Reader software.
• Save measurement name: permits to save
a name for each measurement. In case it is
activated, a pop-up will appear before the
measurement starts in order to indicate a name.
ERASE MEMORY
• Delete all measurements: will delete all
measurements as well as all the screenshots
related to these measurements. Depending on
the number of data in memory this operation
may last some time. We recommend you
avoid overloading the built-in memory, so that
the device can work more smoothly. To erase
measurements selectively, see section 5.5.
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From this menu you can use the “VIEW”
virtual button to view a specic measurement
(by pressing OK), DELETE” to erase a single
measurement, or “DELETE ALL” to erase all the
memorised data (this is the same as “erase
all measurements” on the measurement
conguration screen).
5.5 MEASUREMENT LOG screen
This screen shows all the available
measurements. The arrows are used to
select the next measurement or the preceding
measurement. The arrows are used to select
the next page or the preceding page.
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When a measurement is entered, you can view a
measurement summary screen. To view the data,
use the “VIEW DATA” virtual button. To view the
screenshots taken during the measurement press
on "LIST IMAGES" to enter the SCREENSHOTS
LOG screen.
On the SAMPLES LOG screen, each rectangle
represents a sample. You can use the up or left
arrows to go directly to the latest sample. Where a
screenshot exists, you can display that image by
pressing OK on the selected sample.
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5.6 GPS screen
This screen has the same layout and behavior as
the MEASUREMENT OPTIONS screen. It allows to
modify the GPS parameters. Those parameters
are:
• Format: allows to select 3 standard format
for the latitude and longitude. You can choose
between:
• Degrees minutes seconds: example: 40° 26′
46″ N 79° 58′ 56″ W.
• Degrees decimal minutes: example: 40°
26.7671′ N 79° 58.9331′ W.
• Decimal degrees: example: +40.446 -79.982°.
• Turn on at start up: denes the GPS state when
the unit starts up.
• Turn on for current session: denes the GPS
state only for this session. That means that
next time you switch on the unit the GPS will
be in the state dened by “Turn on at start up”
parameter.
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5.7 SETTINGS screen
This screen has the same layout and behavior as
the MEASUREMENT OPTIONS screen. It allows to
modify the general parameters of the SMP2.
The following parameters can be congured:
ALARM
allows to activate or deactivate the alarm. When
activated, you can dene the alarm threshold
and units for electric and magnetic eld (the
arrows are used to select the gure to be changed
and the arrows are used to change the gure
value).
DATE AND TIME
• Date: allows to change the date of the system.
• Time: allows to change the time of the system.
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GRAPHICS
• Zero based time plots: allow to scale the
graph between 0 and the maximum of the
measurement or between the minimum and
maximum to have a precise view of the time
variation of the eld.
• Graph timespan: sets the duration of the
representation of the graph up to 12 min.
DI S PL AY
• Language: sets the desired language.
• Adjust backlight automatically: if enabled
the SMP2 will adjust backlight depending on
ambient light.
• Backlight level: if automatic adjustment is
disabled, manual level can be selected from
1 to 4 (4 is the brightest).
• Screensaver delay: denes the time before
screen power off. When the screensaver is
active the instrument will not stop measuring.
To exit the screensaver just click any button.
SOUND
• Enable: enables or disables sound.
DEVICE
• Turn off after inactivity period: The instrument
turns off after the specied period of inactivity.
(Activity may be communicating with PC,
keyboard pressing key). When log is activated,
automatic turn off is disabled.
• System info: indicates the version of the SMP2
software. By clicking on OK, you will have
more information about the unit like disk space
available.
• Factory reset: will erase all measurement data
and restore conguration parameters to factory
settings.
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This section describes the main functions of the
SMP2, in addition to instantaneous measurement
of the electromagnetic eld.
6.1 Measurement modes
There are several working modes, depending on
the probe being used. All probes have the time
mode (6.1.1) with spatial average (6.1. 4), but only
the WP400, WP400-3 and WPH-DC have the FFT
mode (6.1.2 ) and the Frequency Log mode (6.1. 3).
For these probes, on the main screen virtual
menu you can see the “MODE” function that
allows you to switch between modes:
• “Time”: Records changes in the total eld value
over time (see section 6.1.1). This mode can
also be used to take spatial measurements.
To do so, select the option in MENU
MEASUREMENT OPTIONS Spatial average
(see section 6.1.4).
• “FFT”: Frequency mode. The main screen
shows the spectral analysis (FFT) for the
selected SPAN and the total eld value (see
section 6.1.2).
• “Freq log”: Frequency log. Records changes in
the eld level over time at a specic frequency.
6. Functions
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6.1.1 Time domain measurement
If you are using a broadband probe, this is the
default mode. If you are using a selective probe,
select this mode on the main screen virtual menu
(“MORE…” "MODE” "Time”).
Measurements in the time domain contain eld
samples. One sample is saved each log interval
as dened in section 5.4. For example, a 6-minute
measurement with a 0.5 s log interval will record
720 samples. The log interval does not affect
the sampling rate of the probe, since the device
always uses 2 samples per second to calculate
the average.
Measurements are stored in an SQL database.
The memory of the SMP2 allows storage of up to
1,000 measurements and 1,000,000 samples.
Before starting the measurement, all the
parameters must be congured. This is done
through the virtual menu.
First of all, select “MENU”, then “MEASUREMENT
OPTIONS”. You will need to establish the
desired parameters for each option, basically
“Measurement time”, “Log interval”, "Average
type", "Average interval" and "Spatial average"
(see 5.4).
Return to the main screen by pressing the “Home”
button.
Select the rest of the measurement parameters
using the virtual menu:
• “FIELD”: E or H (if the probe allows).
• “LIMIT”: Normative limit.
• “UNIT”: Measurement units.
To start logging samples, press the “LOG” button
on the virtual menu. When logging starts, the
device creates a new measurement record
identied with its starting date.
To stop logging samples, press the “END” button.
Note: During logging, the parameters of the SMP2
cannot be changed.
Important: To store position information along with the
eld values, the GPS receiver must be enabled before
logging is started.
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6.1.1.1 High frequency measurements
International standards have specic requirements
for high frequency measurements. When you make
a selection on MENU MEASUREMENT OPTIONS
Standard, the following parameters will be
adjusted to the pre-dened values:
• Measurement time
• Logging rate
• Average type
• Average interval
Then you are ready to measure. Just press the
"Home" button and press the "LOG" button on the
virtual menu:
• The device will wait the time specied in "Wait
time before start" (see 5.4) before starting
the measurement to allow the technician to
move away. A beep will indicate the start of the
measurement.
• It will log samples for [Measurement time]
minutes.
• The measurement will stop automatically and
the alarm will sound. The device will calculate
the average, display it on the screen and store
the data in the memory.
The measurement can be stopped pressing the
STOP button.
6.1.1. 2 Low frequency time domain
measurement with WP50, WP400 or WP400-3
With this type of probe, other additional functions
are available:
• “FIELD”: electric (E) or magnetic (H) eld.
• “LIMIT”: select the standard to apply (see
section 6.2).
• None: No weighting will be applied and the
measurement will be displayed in the desired
units.
• One of the limits: The measurements will be
weighted in accordance with the chosen limit
and result displayed as a % of that limit (over
100% means the limit is being exceeded).
With the WP50 probe only two limits can be
selected: ICNIRP 2010 public and ICNIRP 2010
workers. The gures are shown as an RMS value,
a % of the selected limit or in the selected units
if no limit is chosen. The WP50 probe is not
suitable for analysis of pulsed signals because it
is not equipped with the peak analysis function
described below.
With the WP400 and WP400-3 probes, when a
limit is activated, the weighted peak method is
applied, as described by ICNIRP and recognized
as the most suitable method for analysing
complex non-sinusoidal and pulsed signals. In
this case, the main value displayed is the % of
the peak eld value compared with the selected
limit. The RMS value is also given. As a rule, at
low frequencies the standards limit the peak eld
value, which is the one most likely to exceed the
limit, although verication of the RMS value is
also requested. If no limit is selected, the main
value displayed by default is the RMS value, and
the secondary value is the peak value.
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6.1.2 FFT mode - frequency domain
measurements
This function is only available with a selective
probe, such as the WP400, WP400-3 or the
WPH-DC.
Frequency domain measurements contain
frequency information on the analysed eld,
obtained through calculation of the FFT of the
signal.
Each frequency measurement (FFT) contains 400
points. The capacity of the SMP2 allows storage
of over 1,000 frequency measurements.
Note: In this mode the FFT graph is shown on
the screen and you can use the cursor to select a
frequency. The total RMS and peak eld values are
shown above the graph. Those values represent the
whole eld across the full bandwidth of the probe. The
selected SPAN only affects the display of the FFT graph
and does not affect the total shown on the screen.
In frequency mode the parameters of the
“MEASUREMENT OPTIONS” menu have no
effect. All parameters have to be chosen from the
virtual menu of the main screen:
• “MODE”: Time, FFT or Freq. log (see section 6.1).
• “FIELD”: electric (E) or magnetic (H) eld
(H-eld only available for WPH-DC).
• “SPAN”: select the frequency range available
depending on the probe (affects only the FFT):
• 40 Hz (0.1 Hz resolution)
FFT graph (span dependent)
Total value (span independent)
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• 400 Hz (1 Hz resolution)
• 4 kHz (10 Hz resolution)
• 40 kHz (100 Hz resolution)
• 400 kHz (1 kHz resolution)
• “LIMIT”: allows selection of desired standard
(see section 6.2).
• None: No weighting will be applied and the
measurement will be displayed in the desired
units.
• One of the limits: The measurements will be
weighted in accordance with the chosen limit
and result displayed as a % of that limit (over
100% means the limit is being exceeded).
• “HOLD”:
• Off: no “Max Hold” applied. FFT values
updated on screen every half second.
• Max: “Max Hold” applied. All values keep
the maximum level detected. This option
is recommended for taking a single
measurement to check compliance with a
limit: just select the desired limit, activate
“Max Hold”, wait the appropriate time and
press Log to save the maximum peak, RMS
and FFT values.
• “A X IS”: useful for applications where nding the
source of the emission is important.
• T: shows the FFT for the total eld value.
• X: FFT of the X axis.
• Y: FFT of the Y axis.
• Z: FFT of the Z axis.
Note: iIf data is downloaded to a PC, the FFTs for all
the axes and the total eld can be displayed in a single
graph..
To save an FFT, go to the main screen (direct
access available by pressing the “Home” button)
and press the “LOG” function. The device will save
the current FFT.
6.1.2.1 Case scenarios
This section sets out recommendations for using
the selective system in different situations:
• Checking harmonic content of power lines:
Select:
• “MODE”: FFT
• “SPAN”: 400 Hz
• “FILTER”: 10 Hz
You will obtain an FFT showing 50 Hz and the
main harmonics within the frequency domain (10
to 400 Hz). You can switch between the electric
and magnetic elds using the “FIELD” option.
• Measurement of power lines
Select:
• “MODE”: Time
• “FILTER”: 10 Hz
In this mode you will obtain the total eld value, as
with a broadband probe. Repeat for the magnetic
and electric elds.
• Measurement when the eld type is unknown:
• We recommend always using a lter of 10 Hz
or higher, because below 10Hz any movement
of the device or in its vicinity can affect the
measurement. If you are not sure that there is
no eld below 10 Hz, use a lter of 1 Hz, and
in this case always take the measurement
with the device set on a tripod to prevent
movement.
• If you only need to check compliance in % of a
standard, the time mode is suitable. This will
give a complete and instantaneous result as a
% of the limit.
• If you need to check the frequency content
of the eld, use the FFT mode. First select
the highest SPAN (400 kHz). If no eld is
detected above 40 kHz, change the SPAN to
40 kHz. If no eld is detected above 4 kHz,
change the SPAN to 4 kHz. Finally, if no eld is
detected above 400 Hz, change the SPAN to
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400 Hz. This reduction of the SPAN, wherever
possible, will provide better frequency
resolution to analyse the signal. When you
have the suitable SPAN, press “LOG” to save
the FF T.
Note: In the FFT mode as well, the total eld value,
values for the axes, maximum, minimum and peak
values are updated every half second, representing the
eld values over the full frequency range..
6.1.3 Single frequency time mode
In this mode, a log is kept of the changes in a
single frequency over time. An example is shown in
the gure above. There are two ways to select the
frequency:
a) In the FFT mode, place the cursor on the
desired frequency (you may need to change the
SPAN in order to choose the desired frequency),
then change to the Frequency Log mode.
b) Directly in the Frequency Log mode, using the
SPAN and FREQ functions. With a SPAN of 400 Hz
you can select frequencies with 1 Hz resolution,
with a SPAN of 4 kHz with 10 Hz resolution, with a
SPAN of 40 kHz with 100 Hz resolution, and with a
SPAN of 400 kHz with 1 kHz resolution.
Note that in this mode, even if you have selected a
limit to obtain a value directly as a %, only the RMS
will be given and not the peak value.
6.1.4 Spatial average
Activate this option through MENU
MEASUREMENT OPTIONS Spatial average.
This mode can be used along with the Time
mode and the Frequency Log mode.
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With this mode you can automate the process
if you need to take several measurements at
different positions. The screen does not show
changes over time but rather the average at each
position on a bar graph.
When a log is launched, the measurement will
be taken at the rst position. At the end of each
measurement a window will ask whether to
continue with a new position, repeat the previous
position or end the measurements.
The number of positions measured and the
cumulative spatial average are shown at the top
of the graph, as seen in the gure to the left.
Note: You will need to congure the “Measurement
time” parameter before launching a measurement (see
section 5.4).
6.2 Time domain weighting
Some probes, such as the WP50, the WP400, the
WP400-3 and the WPH-DC can assess exposure
by comparing it with the reference limit.
To do so, the WP400, WP400-3 and WPH-DC
probes use the weighted peak method, which
weights the eld using digital processing
techniques applying a lter function related to the
limit of the applicable standard. With the WP50
probe, an analogue lter is applied related to the
limits, but without a peak detector.
The result is a % where 100% represents the
reference limit. Over 100% means that the current
eld exceeds the limit specied by the selected
standard.
Note: This function is available for time and frequency
domain measurements and the results are displayed
as a % rather than the customary electric or magnetic
elds units.
6.3 Alarm
The alarm function allows the person taking
the measurements to dene a warning level.
When that level is exceeded, the device will give
an audible warning. The alarm will only sound
if the alarm function has been activated on the
conguration screen and the sound is switched on.
6.4 GPS
The SMP2 has a built-in state-of-the-art GPS that
allows it to display and memorize the position
of the device when taking measurements. The
incorporation of ublox functions makes the
receiver highly sensitive and accurate, allowing
exact positioning even in areas with poor satellite
visibility.
The GPS is enabled and disabled through the
conguration menu as explained in section 5.6.
If the position obtained by the GPS is invalid, the
main screen displays the message “Searching”.
If the position obtained by the receiver is valid,
the latitude and longitude are shown on the
screen with a colour indicator of the quality of the
position.
Note: Enabling the GPS increases power consumption
and reduces autonomy. It is important to keep it
disabled when not in use, to avoid unnecessary drain
on the battery.
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7.1 General information
The SMP2 includes a rechargeable Li-ion battery
allowing the device to run for over 20 hours (in
selective mode that time is reduced to just over 6.5
hours). You can check the battery charge level at
any time in the upper right-hand corner of the main
screen
Li-ion batteries have no “memory effect” and
so there is no need to let the battery run down
completely. We recommend charging the battery
completely before its rst use.
• Always switch the device off when it is not in
use.
• Recharge the battery regularly (e.g. every 2
months) even if the device goes for long periods
with no use.
The battery of the SMP2 should be recharged
when the indicator shows the minimum level:
Measurements should be taken without
the charger or the USB connected, to avoid any
alteration of the results.
The battery will function normally at temperatures
between -20ºC and + 45ºC. However, we
recommend avoiding low temperatures to prevent
its useful life from being shortened.
We recommend using only the battery
charger supplied by Wavecontrol to recharge the
battery of the SMP2.
7. BATTERY information
7.2 Recharging
The battery charge time is 5-7 hours. We
recommend switching the SMP2 off before
charging the battery. The procedure is as follows:
• Plug the charger into an electrical outlet (110240 V AC).
• Connect the charger to the SMP2. The red LED
will light up. If it does not light up, the charger is
not properly connected.
• The battery is fully charged when the LED
shows green. Disconnect the charger from the
SMP2 and unplug it from the mains.
Battery charging icon
The SMP2 has a battery charge controller so
you can leave the device charging for longer than
the recommended 7 hours without harming the
batter y.
Note 1: We recommend fully charging the battery
from time to time to ensure that the battery is properly
calibrated.
Note 2: If the red light begins blinking during the
charge, it means that the battery is too warm to be
charged properly. Disconnect the charger, wait for at
least one hour and then reconnect the charger. If the
problem persists, it could mean that the battery is
damaged.
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8. SMP2 Reader Software
8.1 Installation
The software is available in the USB memory
included with the device. You will nd the most
recent version on the Wavecontrol intranet
(exclusive service for registered customers, see
chapter 9 and appendix 7).
Before connecting the SMP2 to your PC, run the
Setup le.
During the process the Setup le will install the
software and all the necessary drivers.
When the installation is complete, connect
the SMP2 and Windows will install the drivers
automatically.
The following images show the full process:
Figure 11: Installation of the program
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8.2 System requirements
• Operating system: Windows 7 or later.
• Microsoft .NET Framework 4 (4.5
recommended).
• RAM: 2 GB.
8.3 Using the software
When running the software and connecting the
SMP2 for the rst time, a pop-up window will
open to allow you to register to the Wavecontrol
intranet. This is required for free software and
rmware updates (see chapter 9 for updates and
appendix 7 for the intranet).
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Main features of the SMP2 Reader software:
• Download stored measurements
• Display measurements as graphs and tables
• Access to stored screenshots.
• Export measurements and screenshots to
Excel
• Access to general information on the SMP2
• Send measurements directly to a web server.
8.3.1 Measurements screen
Measurements are loaded automatically when
the SMP2 is connected by USB. A list will appear
on the left with the measurements stored in the
SMP2. When you select a measurement, a table
and a graph will appear on the right with all the
eld samples taken. A window will open to the
left of the table with general information on the
measurement. This window includes a button for
direct access to the screenshots associated with
the measurement. With an Internet connection, a
map will also appear with a position indicator if the
GPS was switched on during the measurement.
If you select a sample from the table, the program
will trace a vertical red line in the graph, and if
you click on a point in the graph, the vertical line
will move to the position of the cursor and the
corresponding sample will be highlighted in the
table. You can use this to nd maximum values,
ordering samples by value, by clicking on the Field
heading.
Note: If the GPS was switched on during the
measurements, the position data will also appear in the
table.
Measurement info
with map
SMP2 measurements list Samples tableGraph
Figure 12: SMP2 software measurement screen
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At the bottom of the window showing the
measurements, you will nd the following options:
• Export: export all the measurements that you
have selected.
• Delete: delete all the selected measurements.
This will take several minutes if a large number
of measurements are to be erased. If you wish
to delete all the measurements, we recommend
doing so from the SMP2 directly (MENU
MEASUREMENT OPTIONS Delete all
measurements).
• Send to Control Centre: only compatible
measurements can be sent, i.e. broadband
averaged measurements. Select a
measurement and click on this button. A new
window will open where you can review and
complete the information to be sent to the
control centre. See section 8.3.5 for further
details.
Note: Only measurements with 6-minute averages are
compatible with this function.
8.3.2 Screenshots screen
In this tab you can display and download SMP2
screenshots. Select a measurement from the list to
view the associated screenshots.
Each line contains: a selection box, the date of the
screenshot and the sample reference. This last
parameter gives the internal database ID of the
sample. This is used to know which screenshot
corresponds to which measurement (if the
screenshot was taken with logging activated).
The next column, “Action”, allows access to the
measurements associated with a screenshot. Click
on “Click here for measurements” to download the
data from the SMP2 and display it on the screen.
Below, there are two buttons:
• Save
• Delete
Select one or more boxes from the list before
clicking on either of those buttons.
8.3.3 Information screen
This tab shows internal SMP2 information, such as
the rmware version, storage capacity, and so on.
Figure 13: SMP2 information screen
8.3.4 Exporting spreadsheets
On the Measurements screen you can click on
“Export” to start downloading and exporting to
an Excel le. One or more les will be created
for each measurement, depending on your
preferences.
The downloaded les use the Open XML format
and so they can be opened with Ofce (2007 or
later), LibreOfce or OpenOfce (version 3.3 or
later), for example.
On the menu “Tools” “Parameters” in the
“Export” tab you can select different options,
including the type of report (page format or no
format), whether to export all the measurements
to a single le or to a le for each measurement,
to export screenshots, to create a graph or to
paste a position map using the GPS coordinates.
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Figure 14: SMP2 Export parameters
In the exported report, the “Report” tab of the
page format report shows the main data of the
measure, the associated graph, the GPS position
with a map, and the nal screenshot (if any),
depending on the conguration (see gures 14
and 15 ) .
The rst lines show information on the software,
the device, the probe and the measurement
parameters.
The data for all the samples are found in the
“Data” tab.
If there are additional screenshots, they will be
saved in the “Screenshots” tab.
The template for this report is found in the
program installation le in the “Template”
directory (e.g. C:\Program Files (x86)\
Wavecontrol\SMP2 reader\template). It can be
copied to another folder and changed (e.g. to
change the logo). In this case you will need to tell
the program where to nd it.
Figure 15: Example of expor t in page format
The no format report has only two tabs. In the
rst, “Report” you will have the general data,
graph, map and table with all the samples. You
will nd all the screenshots in the “Screenshots”
tab.
Note: Generating graphs can take some time,
especially in the case of measurements with a large
number of samples.
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8.3.5 Control centre screen
If you have access to a Wavecontrol
Control Centre for managing MonitEM and
SMP2 devices, you can upload your SMP2
measurements directly to the Control Centre.
Note: You can only upload one measurement at a time.
You will need an Internet connection to use this feature.
Make sure that you have entered a valid URL, a
user name and a password in the Settings menu
(see Figure 16).
Figure 16: Settings screen
In the measurements screen, rst click on the
measurement to upload the data, then click on
“Send to Control Centre”.
A new window will open with a new tab “Control
Centre” (Figure 17), where you can:
• Find the co-ordinates using an address.
• Find the address using the co-ordinates.
• Adjust the actual position of the measurement
by dragging the position icon on the map.
• Upload a photograph associated with the
measurement. When this is done, click on
“Send to Control Centre”.
Figure 17: Settings screen to upload data to a control centre
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8.4 Live measurements
This screen is only available with a bre optic
connection (see section 4.3.2). It provides a
real-time display on your PC screen of the data
being measured by the SMP2. It also allows you
to change settings for the device, such as:
• Measurement mode (time, frequency or time at
one frequency).
• Field type (electric or magnetic).
• Limit, span, lter (for WP400 and WP400-3).
Figure 18: live screen
At the top on the left you will see the
instantaneous field value for each axis and,
depending on which probe you are using,
several options to change measurement
parameters.
You can start or stop logging data and take
screenshots.
In the frequency mode, you will see a graph
with the FFT of the signal. Click on the graph to
position the cursor, which will show the value
for that frequency.
Note: With the Control button pressed, you can also
use the arrows on the keyboard to move the cursor on
the graph in the same way as the arrows of the SMP2
keypad.
When the GPS is switched on with a xed
position, a map will show the position of the
SMP2 (this requires an Internet connection).
Note: The software in live measurement mode is not
compatible with the spatial average mode. You cannot
launch a measurement in that mode.
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9. Software and rmware updates
9.1 SMP2 Reader (PC software) update
You can update the SMP2 Reader by downloading
the most recent version from the Wavecontrol
intranet: www.wavecontrol.com, Home Log-in.
Step 1: Registration
You can register with the intranet in one of these
two ways:
• from www.wavecontrol.com (Home Create
an account), or
• when connecting the SMP2 with the software
(see 8.3).
Step 2: Download and install
Once registered, please go to:
www.wavecontrol.com Home login, and
enter your login and password. You will be
directed to the download page.
Once in the download page, click on SMP2
SMP2 software. Download and install the le:
SMP2_software.zip.
9.2 SMP2 rmware update.
Please follow these steps:
1. Update SMP2 Reader (please follow the
instruction in 9.1).
2. Run the SMP2 Reader software
3. Connect the SMP2 to the PC using the USB
cable.
The SMP2 Reader will automatically detect
whether a more recent version of the rmware or
the expansion board rmware is available.
4. Click on “Update”.
If the latest version of the rmware or expansion
board rmware was delivered to you by hand, you
can update it by:
• Following steps 1 to 3,
• going to Tools Update Update Firmware
(or Update Expansion Board Firmware), and
• selecting “Update” and locating the rmware
le to update.
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The SMP2 rmware will update in three steps:
• Firmware transfer to the SMP2.
• Firmware integrity check.
• Firmware recording to the SMP2.
Note 1: Depending on the type of update the process
may take from 10 to 30 minutes.
Note 2: In case the SMP2 cannot be connected to the
mains, please be sure there is enough battery.
Note 3: It is recommended to update the rmware
without any eld probe connected to the SMP2.
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10. MAINTENANCE
The SMP2 requires very little maintenance,
although it should be handled with care, as with
any professional measurement equipment.
Maintenance by the user is limited to the outside
of the device, its connections and management
of regular calibrations. Any maintenance or repair
for which the device needs to be opened must be
carried out by Wavecontrol to avoid invalidating
the warranty.
10.1 Cleaning the device and the screen
To avoid damaging the surface, use a soft antistatic cloth to clean the device and the screen.
Use extra care when cleaning the screen to avoid
scratching it.
10.2 Handling the device
The SMP2 and its eld probes are not watertight.
When using them outdoors, protect them from
rain.
The device and the probes must also be protected
from heavy vibrations or blows.
10.3 Regular recalibration
Wavecontrol recommends that the SMP2 and
its probes should be recalibrated every 2 years.
This is strictly a recommendation and it is up
to the owner of the device to decide how often
to recalibrate. That decision may depend on a
number of factors. For example, if the device
is used very frequently, it may be advisable to
recalibrate it more often, as would also be the
case if the device has had any accident that
might make its accuracy questionable, or where
specic regulations require a stipulated regularity
for recalibration, or simply at the request of the
organisation or client for which the device is being
used, among other circumstances.
To recalibrate your equipment, please contact
your local distributor or Wavecontrol at
service@wavecontrol.com.
Wavecontrol offers ISO 17025 accredited
calibrations at its LabCal Wavecontrol laboratory.
We are aware of the importance of recalibration to
the management of your operations. We strive to
offer you the best service in terms of quality, price
and delivery time. If you have a special need, we
will do our best to help you.
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11. TECHNICAL SPECIFICATIONS
Measurement Functions
Measurement eld probes Interchangeable; automatic probe detection and recognition system
Measurement units V/m, k V/m , µW/c m2, mW/cm2, W/m2, A/m, nT, µT, mT, T, mG, G, %
Acquisition time 2 samples per second
Measurement display Total eld and axis eld value (X, Y, Z), maximum, minimum and average
Average type Sliding (continuous, normative) or Tumbling (xed)
Averaging time 10s, 15s, 30s, 1min, 2min, 5min, 6min, 10min, 15min, 30min
Alarm audible signal, 2800 Hz; adjustable threshold
Memory
Sample acquisition adjustable period 0,5s, 1s, 5s, 10s, 15s, 30s, 1min, 6min
Capacity 1 000 000 samples Up to 1000 measurements
Interfaces
Probe Automatic detection and recognition
Data download Mini USB connector / Fiber optic
Firmware update Mini USB connector
Battery charger coaxial jack connector + LED
Display
Display type TFT 4,3’’ (272 x 480 pixels)
Backlight White LED
GPS (optional)
Chip set 56-channel u-blox 7 engine, embedded
Position accuracy Position 2.5 m CEP / 4.0 m
Sensitivity Tracking: –162 dBm / –158 dBm
SBAS (Satellite Based Augmentation
System)
WAAS/EGNOS/MSAS support
Geodetic system WGS 84
General Specications
Batter y rechargeable Li-ion battery
Operation time > 20 hours broadband probes >6 hours 30 minutes for WP400 probes
Standby time > 3 years
Recharge time 5 – 7 hours at 20ºC (68 ºF)
Temperature range -10 ºC to +50 ºC (14 ºF to 122 ºF)
Size (without eld probe) 100 x 215 x 40 mm (3.94 x 8.46 x 1.57 in)
Weight (without probe) 630 g (1.39 lb) including the internal GPS receiver
Accessories
Hardcase, battery charger, USB-mini USB cable,
SMP2 Reader software, user manual, probe calibration certicate
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Appendix 1. Available probes
The SMP2 has a wide range of probes that make
it adaptable to every sector and application. They
include probes for the electric eld, magnetic
eld, electric and magnetic elds, low or high
frequencies, high sensitivity or high power,
broadband or selective.
The probes available as of the date of this
version of the Manual are:
Field Probe Field Frequency Measurement Type
WP50 E/H 10 Hz – 3 kHz Broadband
WP40 0 E/H 1 Hz – 400 kHz Selective & Broadband
WP40 0-3 E/H 1 Hz – 400 kHz Selective & Broadband
WPF3 E 100 kHz – 3 GHz Broadband
WPF6 E 100 kHz – 6 GHz Broadband
WPF8 E 100 kHz – 8 GHz Broadband
WP F18 E 300 kHz – 18 GHz Broadband
WPF40 E 20 MHz – 40 GHz Broadband
WPT E Mobile frequencies Broadband selective
WPH-DC H DC – 40 kHz Selective & Broadband
WPH60 H 300 kHz – 60 MHz Broadband
WPH1000 H 30 MHz – 1000 MHz Broadband
You can always nd up-to-date technical information at:
http://www.wavecontrol.com/rfsafety/en/products/probes
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The SMP2 is an ideal measurement system for
analysing electric and magnetic elds in public
spaces and workplaces. The wide range of
probes that can be used with the SMP2 make
a unique system that can easily and accurately
measure low and high frequency elds as well as
static elds.
The SMP2 can be used to take measurements
in accordance with many international exposure
standards applicable to different industrial
sectors. In order to get the most out of your
SMP2, it is important to choose the proper
conguration, so that it will be suitable to the
characteristics of the eld to be measured.
The table below shows some normal applications
where the general public or workers may be
exposed to EMFs. For each application, the
table shows the general eld characteristics, the
normal working frequency range, the standards
for the sector and the suitable combination of
device and probe.
Appendix 2. Applications
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Application Type of eld Frequency range Standard SMP2 + probe conguration
Broadcast Electric and
magnetic elds.
Tens to hundreds of
MHz.
IEC 62577
EN 50420
EN 50421
EN 50475
EN 50476
EN 50496
EN 50554
IEEE Std C95.1
IEEE Std C95.3
• Broadband measurement.
• Spatial average.
• Probes: WPF3, WPF6, WPF8, WPH60
y WPH1000
Wireless
telecommunication
networks
Electric and
magnetic elds.
kHz - 40 GHz IEC/EN 62232
EN 50385
EN 50400
EN 50401
EN 50492
IEEE Std C95.1
IEEE Std C95.3
• Broadband measurement.
• Spatial average.
• Probes: WPF3 WPF6, WPF8, WPF18,
WPF40 y WPH1000
Resistance and arc
welding
Magnetic elds. 0 - 10 MHz, pulsed EN 50505
IEC/EN 62822-1
IEC/EN 62822-2
IEC/EN 62822-3
IEEE Std C95.1
IEEE Std C95.3.1
IEEE Std C95.6
• Broadband measurement and
weighted measurement.
• Probes: WPH-DC, WP400, WP400-3
Induction heating /
smelting
Magnetic elds. 50 Hz to 20 kHz EN 50519
IEEE Std C95.1
IEEE Std C95.3.1
IEEE Std C95.6
• Broadband measurement and
weighted measurement.
• Probes: WP400
Household
appliances
Magnetic elds. 50 Hz IEC/EN 62233
IEEE Std C95.3.1
IEEE Std C95.6
• Broadband measurement and
weighted measurement.
• Probes: WP400, WP400-3
Microwave ovens Electric elds. 2.45 GHz IEC/EN 62233
IEEE Std C95.1
IEEE Std C95.3
• Broadband measurement.
• Probes: WPF3, WPF6, WPF8, WPF18,
WPF40
RF industrial ovens Electric elds. 27.12 MHz IEEE Std C95.1
EN 50413
IEEE Std C95.3
• Broadband measurement.
• Probes: WPF3, WPF6, WPF8, WPF18
Energy Electric and
magnetic elds.
50/60 Hz IEC/EN 62110
IEEE Std 644
• Broadband measurement and
weighted measurement.
• Probes: WP400 or WP50
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EAS/ RFID Magnetic elds. LF: 1Hz – 500 kHz
MF: 2-30 MHz
HF: few GHz
EN 50364
IEC/EN 62369-1
IEEE Std C95.1
IEEE Std C95.3
IEEE Std C95.3.1
IEEE Std C95.6
• Broadband measurement and
weighted measurement.
• LF: WP400
• MF: WPH60
• HF: WPH1000
Medical Electric and
magnetic elds.
MRI: DC – 60 kHz
Diathermy: 27 MHz
Electrosurgery: 300600 kHz, 13 MHz, 27
MHz
IEC/EN 60601
IEEE Std C95.1
IEEE Std C95.3
IEEE Std C95.3.1
IEEE Std C95.6
• Broadband measurement and
weighted measurement.
• Probes: WPH-DC, WP400 and WPF8
Railway Magnetic elds. DC - 20 kHz EN 50500
IEEE Std C95.3.1
IEEE Std C95.6
• Broadband measurement and
weighted measurement.
• Probes: WPH-DC, WP400
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Appendix 3. Static field measurements: WPH-DC
Warning:
• Under high eld conditions (above 30 mT), it is
not recommended to connect the SMP2 directly
to the WPH-DC probe as the SMP2 contains
ferromagnetic elements. In these cases, you
must use the 5-meter extension cable to keep
the SMP2 as far away as possible.
Important note: if it is suspected that the measuring
point may perhaps have an elevated eld, it is
recommended to carry out a preliminary assessment
around that point, approaching progressively. If it
is found that the eld is close to 30 mT, where the
SMP2 will be placed to take the nal measurement,
precautions should be taken to prevent the SMP2 from
moving, or using the extension cable as mentioned
previously.
• The WPH-DC probe integrates hall sensor
technology that allows very high elds to be
measured (up to 10 T) but these sensors have
a residual voltage (without the presence of a
magnetic eld) that must be compensated to
perform an accurate measurement. For this,
you would have to use the "zero Gauss" camera
delivered with the equipment and make the
zeroing of the probe. (More detail below).
Special functions:
DC/AC: Allows to choose between static eld DC
(0 Hz), variable AC (without the static component)
or DC + AC (static and variable).
To be able to measure the static elds very
precisely, you have to use the DC mode. This
also allows not to take into account the noise or
signals that may exist above 1 Hz.
Zero: this function allows to make the zeroing of
the hall sensor integrated in the probe. It is very
important to do this operation before making an
accurate measurement or to correct a deviation in
temperature. How to proceed:
• Turn on the equipment with the probe
connected and get into the desired mode (DC,
AC or DC+AC).
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• Wait 2 minutes (even more if the equipment
was at a temperature different from the place of
measurement).
• Position the tip of the probe in the Zero Gauss
chamber.
• Press the "Zero" button in the SMP2 menu.
• Repeat these last 2 operations each time
you want to compensate for any change in
temperature.
Range: selects the behavior of the measurement
range of the probe.
• Auto: range will increase and decrease
depending on the eld to be measured.
• Auto-increasing: range will only increase.
This is important when measuring sporadic
peaks. This option should be used when high
level single peaks occur at more than 1 second
separation. To reset range, press the reset
button.
Filter: allows you to dene the best lter for each
measurement. The available values depend on
the type of eld you want to measure (static,
variable or both).
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The choice of option will depend upon the specic
application and the objective of the measurement
or evaluation.
This document also describes the Weighted Peak
Method (WPM), which may be used with any of
those three options.
The SMP2 + WP400 or WP400-3 eld probe
combination is the most complete and compact
available on the market for evaluation of human
exposure to low frequency electromagnetic elds.
It allows evaluation of the electric eld (E) and
the magnetic eld (H) using a single probe, over a
frequency range of 1 Hz to 400 kHz.
In addition, using the WPH-DC you can measure
static magnetic elds (0 Hz) and variable elds up
to 40 kHz.
This document describes the different
measurement options available:
• Broadband
• Selective (FFT)
• Single frequency evaluation
Introduction
Appendix 4. Weighted Peak Method
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Measurement methods
The SMP2 + any of the selective eld probe
(WP400, WP400-3 or WPH-DC) combination
allows you to choose any of 3 measurement
methods.
1. Broadband measurement:
Broadband measurements may be made of the
electric eld (E) and the magnetic eld (H). In
this case, the device takes the full spectrum into
account, measuring all the energy present within
the 1 Hz to 400 kHz frequency range range (up
to 40 kHz for the WPH-DC probe). The result is
a single value in units of electric eld intensity
or magnetic flux density, for aggregate exposure
across the full range.
The “MEASUREMENT OPTIONS” menu is used to
select the measurement time, the log interval, the
average interval and the average type, as shown
in the gure below. Spatial averages may also be
made using the "Spatial average" option:
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Once the measurement behavior is dened, the
next step is to choose the “Time” option on the
“MODE” dynamic menu:
To start the measurement, now all that you need
to do is select “LOG” on the dynamic menu:
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2. Selective measurement (FFT):
The SMP2 + WP400 (or WP400-3 or WPH-DC)
allows you to make selective measurements by
means of real-time FFT-based signal analysis
using digital signal processing techniques. This
can be done for both the E eld and the H eld,
over different frequency spans: 40 Hz, 400 Hz, 4
kHz, 40 kHz or 400 kHz (depending on the probe).
First of all, select the “FFT” option on the “MODE”
dynamic menu:
The spectrum then appears on the SMP2 display.
You may now select the desired span:
If you then press “LOG” on the dynamic menu, the
FFT of the signal will be saved:
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3. Single frequency evaluation:
This measurement mode allows you to track
changes in a given frequency over time. The
display shows the values in real time as they are
obtained (each second).
This tracking can be done in two ways:
• In FFT mode place the cursor on the desired
frequency and change to “Freq. log” on the
“MODE” menu:
• Select the “Freq. log” mode directly on the
“MODE” menu, then specify the desired
frequency:
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Weighted Peak Method
In the area of low frequencies considered
here, which affects a wide variety of industrial
processes, it is normal to nd complex nonsinusoidal signals that are difcult to measure.
The Weighted Peak Method (WPM) is the
most appropriate method to obtain the best
results. There are other methods, such as the
multifrequency elds summation method, which
may give gross overestimates, since they fail to
take signal phase into account.
WPM performs inverse digital ltering, using a
function that is the complement or inverse of
the reference limits curve that we wish to use
(selectable). This gives a result directly as a
percentage (%) of the limits for which we are
measuring exposure.
The SMP2 offers an extensive list of limits
corresponding to the different standards or laws
of different countries. You can use WPM for any
existing limits.
Weighted measurements using WPM can
be taken with any of the three measurement
methods mentioned above. All you need to do is
select the reference limit from the list of available
limits, then take the measurement as indicated for
each method. To choose a limit, select “LIMIT” on
the dynamic menu, as shown below:
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The gure below shows the weighted result for
the broadband electric eld in respect of the
“Low AL” limits of Directive 2013/35/EU.
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Simplied block diagram of RMS-Peak-FFT analysis
Average
Average
Average
RMS
x
Bx
By
Bz
FFT
Output
RMS
y
RMS
z
RMS
Value
10
10
10
Real time
FFT
Axes and
total value
Sensor
Sensor
Sensor
ADC
ADC
ADC
Digital
Filter
Digital
Filter
Digital
Filter
Square
Square
Square
Peak
Detector
Square-
root
Square-
root
Square-
root
Square-
root
Square-
root
Peak
Value
1 M Samples/s
for SPAN 400 kHz
100 k Samples/s
for SPAN 40 kHz
10 k Samples/s
for SPAN 4 kHz
1 k Samples/s
for SPAN 400 Hz
+
+
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• FILTER: Select the high pass lter
• 1 Hz. No lter is applied. Using this option
requires special care. In this mode all
operations are slower due to the integration
time required for having the RMS value at
1 Hz. The device will take longer to adapt
to changes in the eld, so any movements
must be slower or the device should remain
still for several moments at those positions
where you want to take a reading. Another
effect is that if a static eld is present and you
take measurements moving the device, that
movement will make the probe detect the eld
as dynamic and it will contribute to the end
result. In both cases, we recommend using a
tripod and keeping anyone at a distance when
taking measurements.
• 10 Hz (-3dB at 10 Hz). Recommended if you
know there are no signals under 10 Hz (true in
most cases).
• 25 Hz (-3dB at 25 Hz). To attenuate readings
below 25 Hz.
• 100 Hz (-3dB at 100 Hz, < -18dB at 50Hz).
Useful for attenuating the signal at 50/60
Hz. Gives a better signal-to-noise ratio for
measuring harmonics in mains or measuring
weak signals at high frequencies without the
fundamental overloading the dynamic range.
These probes have certain specic functions,
given their spectral analysis capacity.
• RANGE: Select how the probe will adapt to eld
levels. With changes in levels, the electronics
processing the signal must adapt to high or low
levels in order to give accurate results under
both conditions. That adaptation takes time,
which needs to be taken into account in special
cases.
• Automatic: the measurement range of the
probe adapts automatically to the signal,
with either increase or decrease in the level.
Suitable in most cases.
• Auto-increase: the range will only increase,
adapting to higher levels detected and
maintaining those conditions for accurate
immediate reading of high levels. This is
very important in the case of signals with
non-repeating high levels, e.g. signals with
sporadic peaks (at intervals of more than one
second). If they are very fast and short with
high levels, the device might not have time to
adapt to the rst pulses and could measure
a level lower than the actual level. If this
function is activated, the device will already
be adapted to measure the following pulses
correctly. This function could be useful, for
example, to measure pulses generated by
welding equipment.
Special functions of the WP400 and WP400-3 probes
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Response with the different lters, slightly different if a limit has been selected or not.
Figure 19: Filter response when a limit is applied
Figure 20: Filter response when no limit is applied
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• Normal RMS: obtain the RMS value for the eld
with normal integration time. Suitable for most
applications.
• Max fast RMS: allows measurement of the
maximum RMS for the eld over a very short
integration time (4 ms). The maximum RMS
value measured is displayed every 0.5 sec.
Note 1: The Max fast RMS is very useful e.g. for
measuring radiation from a rotating radar antenna to
determine its radiated power.
Note 2: Max fast RMS does not allow averaging, since
the value obtained every 0.5 sec is the maximum value.
Appendix 5. Radar measurements
The high frequency eld probes produced since
April 2016 (WPF18 and over) have a special
feature called Max Fast RMS. It can be activated
on the main screen with the “MODE” button.
This function affects the integration time of the
probe, i.e. the time needed to take the reading
of the eld level. Under normal conditions, the
probes of this type available on the market take
several hundred milliseconds. This unique feature
allows an integration time of just 4 milliseconds.
MODE: select the sampling mode for the probe
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Appendix 6. Communication Protocol
This communication protocol is valid for USB or
bre. The main difference between the two is the
port settings.
Ports
USB: it emulates a serial port service with CDC,
automatically negotiated rate, 8 bits, no parity,1
bit stop. The Vendor ID and Product 0x1FC9 ID
0x807B of the USB may be used to nd the port
number opened by the driver.
Fibre: 230400 bps, 8 bits, no parity, 1 bit stop. The
0x0403 Vendor ID and Product ID 0x6001 may be
used to nd the number of communication port
opened by the FTDI driver.
Format of commands and responses
Communication is done through the exchange of
strings with the XML format. The SMP2 checks
the frames received and rejects them if not well
formed.
The XML format accepted by the SMP2 parser is
as follows :
Command:
PC SMP2
General format of commands
<?xml version=”1.0” encoding=”ISO-8859-1”?>
<cmd>
<instruction>[String to identify the command]</instruction>
<params>
[Settings needed by the command]
</params>
<timeout_msec>[optional; max time to run the command]</timeout_msec>
<md5>
[MD5 of string from “<?xml” to the character previous to tag “<md5>”, in ASCII hex]
</md5>
</cmd>
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There are 5 characters that can not be used in
the XML content and must be replaced by the
following syntax.
Character Syntax
“ "
& &
‘ '
< <
The XML format used by SMP2 is as follows:
Response:
PC SMP2
OK General format of the correct reply
<?xml version=”1.0” encoding=”ISO-8859-1”?>
<reply>
<result>
<instruction>[String that identies the command]</instruction>
[Specic results of the command]
</result>
<md5>
[MD5 of the string from “<?xml” to the previous character of the “<md5>”, tag in ASCII hex]
</md5>
</reply>
Response:
PC SMP2
ERROR General format of the error reply
<?xml version=”1.0” encoding=”ISO-8859-1”?>
<reply>
<error>
<code>[Numeric code of error]</code>
<msg>[Error description]</msg>
</erro r>
<md5>
[MD5 of the string from “<?xml” to the previous character of the “<md5>”, tag in ASCII hex]
</md5>
</reply>
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Commands and Responses
Instruction Parameters Response
GET_SAMPLE
get the eld measured
eld_type: 0 electric, 1 magnetic
value: eld in V/m or uT
unit: units displayed on the screen (see Units
section)
x, y, z: eld in axis
avg: average eld
peak: peak value of WP400 probe
gps_lat_deg: latitude in decimal degrees
gps_lon_deg: longitude in decimal degrees
gps_height: height in meters
GET_TIME
get time
local_time: time in format YYYY-MM-DD
HH:mm:ss
SET_TIME
set time
new_date_time: time in format
YYYY-MM-DD HH:mm:ss
local_time: time in format YYYY-MM-DD
HH:mm:ss
INFO_SYSTEM
get info about device
device: identify device SMP2
serial_micro: unique ID of micro crontoler
rmware_version: rmware version
serial_device: device serial number
hardware_version: hardware version
MEASURE_START
start measurement
MEASURE_STOP
stop measurement
SET_DATA_T YPE
to select time or frequency
measurement mode
data: time or freq data: time or freq
KEY
take a screenshot
key: PRINTSCREEN
BATTERY_INFO
get battery level
capacity_mAh: capacity in mA/h
charge_mAh: current charge in mA/h
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Units
Below it is described in c# the units of SMP2
with the identication number that the command
GET_SAMPLE returns.
enum E_FieldUnits
{
E_FIELD_V_m = 0, // E - V/m
E_FIELD_kV_m = 1, // E - kV/m
E_FIELD_uW_cm2 = 2, // E - uW/cm2
E_FIELD_mW_cm2 = 3, // E - mW/cm2
E_FIELD_W_m2 = 4, // E - W/m2
E_FIELD_A_ m = 5, // E - A/m
E_FIELD_PERCENT = 6, // E - %
} ;
enum H_FieldUnits
{
H_FIELD_A_ m = 7, // H - A/m
H_FIELD_uT = 8, // H - uT
H_FIELD_nT = 9, // H - nT
H_FIELD_mT = 10, // H - mT
H_FIELD_T = 11, // H - T
H_FIELD_PERCENT = 12, // H - %
H_FIELD_mG = 13,
} ;
Limitations and Timeout
The XML commands from the PC to the SMP2
can be up to 32768 bytes. The SMP2 expects
to receive complete commands in less than 3
seconds (counting from the time of receipt of the
rst byte); If after this time it does not have a full
and valid response, an error message is sent and
discards the information received so far. If you
send a message without the initial “ < “ XML tag,
the SMP2 will not send any response.
When connecting the USB to the computer, the
SMP2 will interrupt listening the bre port.
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Example of Commands
These examples have been automatically generated by the software SMP2 and should be sent
unformatted (ie no spaces and line breaks between tags).
System info
<?xml version=”1.0” encoding=”ISO-8859-1”?> <cmd><instruction>INFO_SYSTEM</
md5>c1c0060ec77a5b477c8e164012df8e4f
</md5></cmd>
SMP2 time
<?xml version=”1.0” encoding=”ISO-8859-1”?> <cmd><instruction>GET_TIME</
on><md5>81c73f231ba30eca41b76577ad6f7f9f
</md5></cmd>
Field level
<?xml version=”1.0” encoding=”ISO-8859-1”?> <cmd><instruction>GET_SAMPLE</
md5>d8dd6be74a3df920ca20b397a0f49bc0
</ md5></cmd>
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Example c# code to generate the MD5
using System;
using System.text;
using System.Security.Cryptography;
private string Add M d5(string cmd)
{
String formatted_xml = cm d;
String result = string.E m pt y;
string[] string_parts;
/* Add a <md5>MD5_VALUE</md5> tag before the closing </cmd> tag. */
if (!formatted_xml.Contains(“< m d5>”))
{
/* Split result: before “</cmd>” and after “</cmd>”: */
string[] tokenizer = new string[ 1];
tokenizer[0] = “</c m d >”;
string_parts = formatted_ xml.Split(tokenizer, 3,
StringSplitOptions.N o ne);
if (string_ parts.Length = = 2)
{
//Calculate MD5 of the chunk before “</cmd>
using (var md5 = MD5.C r e a t e ())
{
string md5_str = BitConverter.To St r in g (m d 5.
ComputeHash(Encoding.UTF8.GetBytes(string_parts[0]))).Replace(“-”, “”).To L o w e r ();
//Add it to the result
result = string_parts[0] + “<m d5>” + md5_str + “</md5></
cmd>”;
}
}
}
return re sult;
}
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Wavecontrol provides an exclusive intranet space
for its customers with pertinent information
on its products, such as specication sheets,
application notes, etc.
One of the important things that you can do via
the intranet is keep your SMP2 device always up
to date. Wavecontrol offers you regular updates
of the SMP2 rmware and the SMP2 Reader
software, free of charge. Those updates may
contain:
• Error corrections
• Operating improvements
• New features
You can enter the intranet through the
Wavecontrol web page. You will have to register
with the system through the Home menu:
Appendix 7. Wavecontrol intranet
Page 69
P. 69
www.wavecontrol.com
User’s Manual
Electromagnetic Field Meter
DECLARATION OF CONFORMITY (DoC)
Manufacturer: Wavecontrol, S.L. C/ Pallars, 65-71
08018 Barcelona (Spain)
Object of the declaration: SMP2 Electromagnetic Field Meter
The above mentioned product complies with the essential requirements, which are specied in
the 2004/108/EC Directive on the approximation of the laws of the Member States relating to
electromagnetic compatibility.
The product of the declaration described above is in conformity with the requirements of the following
specications:
Documents-No. and description:
IEC-EN 61326-1:2013
Electrical equipment for measurement, control and laboratory use.
EN 55011:2011 + A1:2011
Industrial, scientic and medical equipment - Radio-frequency disturbance characteristics - Limits and
methods of measurement.
IEC-EN 61000-3-2:2006 + A1:2010 + A2:2010
Electromagnetic compatibility (EMC) -- Part 3-2: Limits - Limits for harmonic current emissions
(equipment input current <= 16 A per phase).
IEC-EN 61000-3-3:2009
Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for
equipment with rated current <= 16 A per phase and not subject to conditional connection.
IEC-EN 610 00-4-2:2010
Testing and measurement techniques - Electrostatic discharge immunity test.
IEC-EN 61000-4-3:2007 + A1:2008 + A2:2011
Testing and measurement techniques- Radiated, radio-frequency, electromagnetic eld immunity test.
IEC-EN 61000-4-4:2005 + CORR:2010 + A1:2010
Testing and measurement techniques - Electrical fast transient/burst immunity test.
IEC-EN 61000-4-5:2007 + CORR:2010
Testing and measurement techniques - Surge immunity test.
IEC-EN 61000-4-6:2009
Electromagnetic compatibility (EMC) -- Part 4-6: Testing and measurement techniques - Immunity to
conducted disturbances, induced by radio-frequency elds.
IEC-EN 61000-4-8:2011
Electromagnetic compatibility (EMC) -- Part 4-8: Testing and measurement techniques - Power
frequency magnetic eld immunity test.
Barcelona 18th of June 2014 Ernest Cid - CEO
Page 70
Safety, Quality, Service
+34 93 320 80 55
www.wavecontrol.com
info@wavecontrol.com
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