User`s manual Shielding effectiveness measurement

User`s manual Shielding effectiveness measurement
MPB S.r.l.
Via Giacomo Peroni 400/402
00131 ROMA (RM)
Tel +39 0641200744
Fax +39 0641200653
info@gruppompb.com
www.gruppompb.com
User’s manual
SEMS
Shielding effectiveness measurement
system
MPB 2010 ver. 2_0
USER’S MANUAL
SEMS
SAFETY NOTE
Read before using the product
MPB works to provide to its customers the best safety conditions available
complying with the current safety standards.
The instrumentation described in this manual has been produced, tested and left the
factory in conditions that fully complying the European standards.
To maintain it in safe conditions and ensure the correct use, these general
instructions must be fully understood and applied before using the product.
This product is designed for industrial environment and laboratories and should be
used by skilled staff only.
MPB disclaims responsibility for a different use of the device.
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USER’S MANUAL
SEMS
C o n f or m i t y C e r t i f i c a t e
(in accordance with the Directives: EMC 89/336/EEC and Low Voltage 73/23/EEC)
This is to certify that the product: SEMS
(Measurement system of shielding effectiveness)
complies with the following European Standards:
Safety: CEI EN 61010-1 (2001)
EMC: EN 61326-1 (2007)
This product complies with the requirements of the Low Voltage Directive
2006/95/CE, and with the EMC Directive 2004/108/CE.
MPB S.r.l.
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USER’S MANUAL
SEMS
Index
1. General information
1.1. Introduction
1.2. System description
1.3. Standard accessories
1.4. Optional accessories
1.5. Receiver front panel
1.6. Transmitter front panel
1.7. Receiver/transmitter rear panel
1.8. Technical specifications
2. Operating principle
2.1. SEMS receiver
2.2. SEMS transmitter
2.3. SEMS system
3. System use and operation
3.1. Std Menu
3.1.1. Cal Menu
3.1.2. Show Menu
3.1.3 Meas Menu
3.2. WIZ Menu
3.2.1 Measurements using wizard
3.3. Menu Spt
3.4 Measuring the shielding attenuation
3.5 Calibration using CalKit
3.6. How to use the active bridge
3.7. Measurement with Rod antennas mod. R1
4. SEMS PC Utility software, controls and
functions
4.1. Installation
4.2. Archive Mode
4.3. List Mode
4.4. Receiver firmware upgrading
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Pag.
5
5
6
6
7
7
8
9
10
10
11
12
13
15
17
19
20
24
25
26
28
29
30
31
32
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USER’S MANUAL
SEMS
1. General information
1.1. Introduction
SEMS is thought to comply the raising need to test and verify the shielding
effectiveness of shielded environment in hospitals and industries.
This system allows to measure automatically with high speed and accuracy the
attenuation value of the magnetic and electric field in shielded environments.
1.2. System description
The shielding effectiveness measurement system has a transmitter and a receiver,
both of them are provided with a pair of very small antennas, one is used to
measure the magnetic field attenuation in the 2MHz to 128MHz frequency range,
the other one is used to measure the electric field attenuation in the 60 to 300MHz
frequency range.
Contrary to today’s available systems, that measures the shield effectiveness on
few frequency points, SEMS allows to perform a complete test on the whole
frequency ranges continuously. Another improvement compared to the standard
system is the component synchronization, TX and RX are connected by a wireless
system that allows to perform automatically the measurement minimizing the user’s
errors.
Picture n°01
3
SEMS in the transport bag
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USER’S MANUAL
SEMS
1.3. Standard accessories
1) SEMS receiver
2) SEMS transmitter
3) 2 biconical antennas (60…300 MHz)
4) 2 loop antennas (2…128 MHz)
5) 2 RS232/wireless
6) 2 Battery chargers
7) Active bridge at 2.4GHz
8) PC Utility SEMS software
9) Cal Kit and SIT calibration certificate
10) User’s Manual
11) RS232 cable and RS232-USB adapter
12) Instrumentation case
3
Picture n°02
1
1.4. Optional accessories
-
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2 Loop antennas Mod. L2, 10 kHz…4 MHz frequency range
2 Rod antennas Mod. R1, 1MHz…60 MHz frequency range (read chapter
3.7)
2 Wooden tripod Mod. TR-02-A
USER’S MANUAL
SEMS
1.5. Receiver front panel
In the Picture below(n°03) is represented SEMS receiver front panel. It has a
display and a command keyboard.
RF in 50 Ohm
N female connector
Alphanumeric display
Keyboard
Power button
Picture n°03
1.6. Transmitter front panel
The SEMS transmitter (Picture n° 04) has no command button but a power button,
since the commands are sent by the receiver using the wireless connection.
RF out 50 Ohm
N female connector
Power button
Picture n°04
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USER’S MANUAL
SEMS
1.7. Receiver / Transmitter rear panel
The rear panels (Picture n° 05) are equals for both devices and upon them is
possible to find the serial number, the thread used for the tripod, the battery charger
connector and the RS232 interface for the wireless link.
Picture n°05
RS232
Serial
number
Thread insert ¼
Battery charger
connector
Important note: Always use the battery charger provided with the instrument to
avoid serious damages to the devices and operator’s injuries.
Important note: The battery charger must be connected with both devices (Tx
and Rx) turned off.
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USER’S MANUAL
SEMS
1.8. Technical specifications
SEMS
Frequency range for TX/RX
Resolution
10 kHz…300 MHz
10 Hz
RF out (TX module)
Max output power (typical)
Zout 50 Ω, N fem.
+30 dBm
RF in (RX module)
VSWR
Attenuator
Max input power
Zin 50 Ω, N fem.
< 1.2
0…20dB
110 dBuV
IF bandwidth (RX module)
3 dB bandwidth
5/150Hz
Attenuation measurement accuracy
(typical)
10 kHz…30 MHz
± 1.0 dB
30 MHz…300 MHz ± 1.5
dB
I/O interface
RS232 / Wireless
Buzzer
To set on attenuation level
International standard compliancy
MIL-Std-285 IEEE Std 299 EN 50147-1
NSA65-6
Operating temperature
0°….40°C
Battery
Irreplaceable and rechargeable Li-Ion
(6 h operating time)
Antennas
Loop Mod.L1
Biconical Mod. B1
Frequency range 2…128 MHz
Diameter 30 cm
Frequency range 60…300 MHz
Width 35 cm
Calibration Set-Up and Measurement
Options
Programmable by software
Loop Antennas Mod.L2
Frequency range 10kHz…4 MHz
Diameter 30 cm
Frequency range 1 MHz…60 MHz
Height settable
Rod Antennas Mod. R1
Wooden tripod Mod. TR-02-A
Optic link 30 m
Weight and dimensions
Overall weight
Case dimensions
9,4 kg
52x43x23cm
Technical specifications may change without notice
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USER’S MANUAL
SEMS
2. Operating principle
2.1. SEMS Receiver
The block diagram (a) below represents the SEMS receiver.
Digital
RF
IN
Attenuator
>
Filters
>
ADC
RSP
DSP
>
Display
Figure a)
First of all the RF signal received by the antenna is attenuated by the attenuator
module to fit the level to the next modules specifications, subsequently we can find
the filters to select the bandwidth depending on the frequency settings. Then the RF
signal is converted by an ADC and is processed by the digital part with a RSP and a
DSP, the result will be shown on the display.
2.2. SEMS Transmitter
The block diagram below (b) represents the SEMS transmitter.
Digital
CPU
DDS
>
Doubler
>
Power
RF
OUT
amplifier
Figure b)
The transmitting signal is generated using the DDS controlled by the CPU that
receives the instructions from the receiver wireless interface, this signal is
duplicated and amplified in order to achieve the necessary level to be transmitted by
the transmitting antenna.
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USER’S MANUAL
SEMS
2.3. SEMS System
The main purpose of the SEMS is to measure the shielding effectiveness in a
shielded environment by measuring the attenuation of the electric or magnetic field.
We can briefly describe the operating principle as it follows:
The transmitter generate a RF signal and irradiates it through the antenna, at a
certain distance the receiver catches the signal with an equal antenna and
measures the signal level. If we move the receiver inside the shielded environment
maintaining the same distance from the transmitter we will get a lower signal, so we
can consider the shielding attenuation the difference between the reduced and the
original signal.
Distance for
the zeroing
process
Picture n°06
Example of zeroing with loop antennas
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USER’S MANUAL
SEMS
3. System use and operations
Turn on menu
By pressing the power button of the RX module the device will turn on, to turn it off
press the power button for at least 4 seconds. Follow the same procedure for the TX
module.
As soon as the device is turned on, the display will show the following screenshot.
On the top right of the screen will appear a battery icon to show the charge status of
the RX module, after the TX connection on the top left will appear the TX device
battery icon.
SEMS
FW – 1.XX XX/XX/XX
WIZ
Std
ll
ll
Stp
ll
ll
NOTE: As soon as the connection is estabilished, if the red led of the wireless devices
blink together with the yellow ones, wait untill the complete switching off of the first
ones in order to let the devices synchronize and ensure the correct functioning.
3.1
Std Menu
By pressing the Std menu button this screenshot will appear
SEMS
FW – 1.XX XX/XX/XX
ll
Show
Cal
ll
ll
ll
Then pressing the relative button allows the access to Show and Cal menu.
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USER’S MANUAL
SEMS
3.1.1. Cal Menu
Cal menu is used to perform the system zeroing process(Scan or List) or the system
calibration process(CalK)
SEMS
Ready for Measuring
Scan
List
CalK
ll
ll
ll
ll
Scan performs the system zeroing process using the standard or customized
frequency bands, by pressing the scan button we will see the following screenshot
where is possible to choose the default bands (L_Lo, L_Hi e Bic) or the user’s
customized bands pressing the User button (customized bands are programmed
with the “SEMS PC_Utility” software)
SEMS
Ready for Measuring
L_Lo
ll
L_Hi Bic
ll
ll
User
ll
The choice of the button to press depends on the different types of antennas:
L_Lo (Loop antennas Mod. L2)
L_Hi ( Loop antennas Mod. L1)
Bic (Biconical antennas Mod. B1)
Pressing User button will appear this screenshot to choose the memorized band:
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USER’S MANUAL
SEMS
SEMS
Ready for Measuring
Sc1
Sc2
ll
ll
Sc3
Sc4
ll
ll
List performs the system zeroing process using the default or programmable
frequency list, by pressing list button will appear a new menu where you can select
the default frequency list DFT or three programmable lists (L1, L2 e L3)
SEMS
Ready for Measuring
DFT
L1
L2
L3
ll
ll
ll
ll
CalK performs the system calibration process using the four 30 dB attenuators
supplied in the CAL-KIT.
NOTE: This procedure needs a wireless connection between TX and RX, you can
control the connection with the battery status on the left top of the screen of RX (will
be visible only if the connection has been successful).
When the zeroing procedure ends the following menu will appear:
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USER’S MANUAL
SEMS
Fully Zeroed
Ready for Measuring
Meas Show Cal
ll
ll
ll
ll
3.1.2. Show menu
The show menu will provide the results of measurements performed and previously
stored
To see the saved measurements press the Show button
SEMS
Ready for Measuring
Meas Show
ll
Cal
ll
ll
ll
e.g. We will choose a measure stored in a memory named H1-4
SEMS
Ready for Measuring
Last
L1-4
M1-4
H1-4
ll
Ll
ll
ll
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USER’S MANUAL
SEMS
Then we recall the H1 memory
SEMS
Ready for Measuring
H-1
H-2
ll
ll
H-3
H-4
ll
ll
1stF Shows the attenuation at the lower frequency of the selected scan or list
NxFr Shows the attenuation on the next frequency
HiPk Shows the minimum attenuation on the whole scan or list
NxPk Shows the first relative minimum of attenuation from the current frequency
Scan
60.000 to 300.000
1stF
ll
NxFr HiPk
ll
ll
NxPk
ll
By pressing the Last button you will see the results of the last measurement
performed, by pressing the remaining three buttons you can see the other stored
data. (up to 4 for each button).
As soon as we choose the measure to see you can analyze frequency by frequency
the measured attenuation.(The frequencies are always expressed in MHz)
By pressing the ESC button you can go back to the previous menu.
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USER’S MANUAL
SEMS
3.1.3 Meas menu
You can find the Meas command in the Std menu, but it will appear only when the
system is zeroed using the Cal command described in the previous paragraph
(3.1.1. of this manual).
SEMS
Ready for Measuring
Meas Show
ll
ll
Cal
ll
ll
The command will perform a measurement of attenuation automatically (Auto), or
manually (Man).
Fully Zeroed
Ready for Measuring
Auto
Man
Zero
ll
ll
ll
ll
Using the automatic mode you can choose if you want the measurement procedure
to start immediately (Now), or with a fixed time delay (10s, 30s, e 60s).
Fully Zeroed
Ready for Measuring
Now
10s
30s
60s
ll
ll
ll
ll
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USER’S MANUAL
SEMS
If you use a manual measurement you will use the commands: (Prev) measure of
the previous frequency, (Next) measure of the next frequency, (Redo) in order to
measure the current frequency and (Abort) to end the measurement.
This feature can be used as a modality of RF leaks(sniffer) in order to identify
weaknesses in the shielding of the room. TX unit has to be placed approximately at
1 meter from the area analyzed. To measure the electrical component we
recommend to use Rod Antennas ,Mod. R-1, completely closed on the RX unit and
completely open on the TX unit. For the magnetic field you can use the pairs of
Loop Antennas L-1 or L-2.
60.000000 MHz
Rbw:40 Hz.
0.3,0.3 [0]
Prev
Next
ll
ll
Redo Abort
ll
ll
When the measurement is finished the display will show the memory slot to store
the acquired data, you can choose one of the 4 memories for each frequency range:
Frequency Range from 0.01 to 2 MHz = memory (L-1, L-2, L-3 e L-4)
Frequency Range from 2 to 60 MHz
= memory (M-1, M-2, M-3 e M-4)
Frequency Range from 60 to 300 MHz = memory (H-1, H-2, H-3 e H-4)
Example: Save request in the memory slots from 60…300 MHz range:
Scan Terminated
Press 1-4 to save
or Escape
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H-1
H-2
ll
ll
H-3
ll
H-4
ll
USER’S MANUAL
SEMS
By pressing the H-1 button the data will be stored and you will go back to the
starting screenshot.
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USER’S MANUAL
SEMS
3.2. WIZ menu
To improve the managing of measurement saving procedure you can use the
SEMS’s wizard for a better organization of data storage.
To use the wizard press the WIZ button in the top menu of the device. The wizard
will lead the user throughout the procedure asking the following questions:
-
The selection of the chamber where the measurements are performed (A, B,
C, D): Using A, B, C e D you can identify a shielded chamber. Then the user
has to remember the letter assigned to the chamber where the
measurements were done.
Choose the
Chamber you want
To measure
-
A
B
C
D
ll
ll
ll
ll
The choice of the maximum number of spot to measure (1, 2, 4, 8):
Represents the number of measuring spot assigned for each chamber. The
user must sort chronologically the measured spot and he will find the same
order in the instrument memory.
Select the max
number of spot
to be measured
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1
2
4
8
ll
ll
ll
ll
USER’S MANUAL
SEMS
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The selection of ranges (antennas) to measure (1, 2, 3, 4): it represents the
number of antennas systems available to the user during the measurements.
When you perform the measurements at all the points specified previously,
the system will switch range, asking you to replace the antennas and redo
the auto zero procedure.
Select the number
of ranges (antennas)
to be measured
1
2
4
8
ll
ll
ll
ll
3.2.1. Measurement using wizard
After the selection of the chamber, spots and ranges the instrument will start the
procedure to perform the auto zero required by the first set of antennas to be
used.
The procedure to follow for this purpose is exactly the same of the auto zero
calibration as described in chapter 3.1.1. of this manual.
Choose the range
for Antenna 1
(Zero)
Scan
List
ll
ll
ll
ll
Selecting “Scan” we can choose to zeroing the system using the default mode
(L_Lo - L_Hi - BIC) or to use the span programmable by the “SEMS PC_Utility”
software mode (User).
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USER’S MANUAL
SEMS
Choose the range
for Antenna 1
(Zero)
L_Lo
L_Hi
Bic
User
ll
ll
ll
ll
As soon as the zeroing procedure is completed, the measurement screenshot will
appear on the display.
In this screenshot the user has to decide how to perform the measurements:
automatically (Auto), or manually (Man).
Fully Zeroed
Ready for Measuring
Auto
Man
ll
ll
ll
ll
Choosing the automatic mode we can make it start immediately (Now), or to set a
fixed time countdown before starting (10s, 30s, e 60s).
Fully Zeroed
Ready for Measuring
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Now
10s
30s
60s
ll
ll
ll
ll
USER’S MANUAL
SEMS
When the manual mode is selected , the user has to choose the commands: (Prev)
to measure the previous frequency, (Next) for the next frequency, (Redo) to repeat
the measurement on the current frequency or (Abort) to quit.
60.000000 MHz
Rbw:40 Hz.
0.3,0.3 [0]
Prev
Next
ll
ll
Redo Abort
ll
ll
After this choice the measurement will be performed, and will appear the wizard
management screenshot to control the status of procedure.
Ch:A Sp:1/2 R:1/2
Spot Done (115.7 dB)
Next
Redo
ll
ll
End
ll
ll
In this screenshot “Ch:A” means that the chosen chamber is called “A”, “Sp:1/2”
is the measurement spot index (in this case the spot is the 1st of the 2), “R:1/2”
is the antennas system (range) index (in this case we are using the system 1 of
2).
“Spot Done” means that the measurement is completed for this spot with the
indicated range, the value shown nearby beneath brackets is the maximum
attenuation of the whole frequencies.
The Next button must be pressed to get to the next spot. If all the required spot
have been measured, the procedure automatically switch to the next pair of
antennas and shows again the auto zeroing screenshot. If you used all the
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USER’S MANUAL
SEMS
antennas systems that you selected , the procedure is over and it will return to
the main screenshot with a success message about the data storing.
The Redo button repeats the measurement for the selected spot shown in the
screen, as soon as this operation is completed the display will show the same
screenshot with the updated value of the maximum attenuation.
The End button stops the measurements with the current set of antennas. By
pressing it there will be the change of the antennas and the auto zero procedure,
if the antennas systems have all been selected the procedure will end with a
message of success about the storing of the data and you will go back to the
main screenshot.
WARNING: Pressing the “End” button in the first antennas system will reduce the
spots for all other systems. (e.g. if I select 8 spots and I measure 3, pressing end
will reduce to 3 the maximum number of spot per system. But if we perform
measure on all of the 8 spots, then we will change antennas, and then again we will
press the end button after just 3 spots measured and all the 5 spots will be kept.
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USER’S MANUAL
SEMS
3.3. STP Menu
SEMS has an internal buzzer that beeps when a customizable alarm threshold is
exceeded.
To activate this function is necessary to press the “Stp” button in the main
screenshot shown as you turn the instrument off.
BEEP OFF 20dB
Use arrows for
10 dB step
+1
-1
ON
OFF
ll
ll
ll
ll
Using the up and down arrows on the SEMS keyboard is possible to move the
threshold by 10 dB, to set a more fine value is possible to press the +1 and -1
buttons to increase or decrease the threshold by 1 dB.
By pressing the ON button the buzzer will be activated, and during the
measurements if the attenuation measured drops below the threshold the buzzer
will produce an acoustic signal.
While the measured value remains under the threshold the buzzer will produce a
fast series of beeps, when the measured value returns over the threshold the buzzer
will be still beeping but with a slower series of sounds.
The OFF button will take the sound off.
The sound mode status is reported on the top of display in this menu “BEEP ON”
and “BEEP OFF”.
The actual threshold is written on the right top of screen (in this example is 20 dB)
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USER’S MANUAL
SEMS
3.4. Measuring the shielding attenuation
1) Place the receiver and the transmitter on the 120 cm height non conductive
tripods, and place them 40/60 cm if you are using the loop antennas and
100/200 cm if you are using biconical ones.
2) Connect the antennas upon the transmitter and receiver being careful to
align them in a parallel way.
3) Connect the wireless transducers to the RS232 port on the transmitter and
the receiver, turn on both devices and wait until the green blinking light stops
and remain turned on and the two icons of the batteries become visible on
the receiver’s display. Is recommended to wait a few minutes before going on
(warm-up).
4) Perform the zeroing procedure by using the Cal button, select then Scan or
List for the desired frequencies.
5) As soon as the zeroing procedure is over move the receiver into the shielded
environment near the first measurement point and the transmitter outside
trying to maintain the same distance used during the zeroing plus the shield
width.
6) Measure the attenuation pressing the Meas, Auto and 10s button to allow
the user to move away from the measuring system.
7) As the measure ends save the result in a memory.
8) Repeat the 5, 6 and 7 steps for each measurement spot.
9) After all the spots are measured download the results on a PC using SEMS
PC Utility software provided with the product.
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USER’S MANUAL
SEMS
3.5. Calibration using Calkit
The SEMS needs a periodic linearity calibration, the Cal-Kit can easily and precisely
accomplish this purpose. If required the Cal-Kit can be provided with SIT calibration.
To start the calibration procedure press Cal button from the main menu and press
CalK button, then calibration can be performed following the instructions on display.
This screenshot shows the request for the 30 dB attenuator
Insert
30 dB Attenuator
Abort
ll
OK
ll
ll
ll
Connect the Tx and Rx using the 30 dB attenuator and press the OK button
This screenshot shows the request for the second attenuator
Insert (2 X 30 dB)
60 dB Attenuator
Abort
ll
OK
ll
ll
ll
Connect the second attenuator and then press the OK button
Repeat the same operation until you will have used all the four 30 dB attenuators
(4x30 dB= 120 dB)
When calibration is finished the following screenshot will be shown
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USER’S MANUAL
SEMS
Calibration done
Worst: 0.70 dB
20.000 kHz (120 dB)
Show Cal
ll
ll
ll
ll
The “Worst” parameter shows the worst accuracy over frequencies (in this case is
0.7 dB at 20.000KHz) typically is a parameter that you can find in the technical
specifications of the chamber:
10 kHz... 30MHz ± 1.0dB
30 MHz...300MHz ± 1.5dB
The following images show the procedure set-up.
Picture n°07
Picture n°08
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USER’S MANUAL
SEMS
3.6. How to use the active bridge
The active bridge is developed to improve the connection between Tx and Rx, this is
very useful when the shielding that is tested is too high to ensure the direct wireless
connection between the devices (2.4GHz), using the wireless/optical cable adapter
you can solve the problem allowing the regular performing of the test.
The active bridge consists in two wireless/optical fiber adapter modules called
“wireless bridge master” and “wireless bridge slave”, the modules are connected by
the optical cable, and is powered by (Ni-Mh AAA) rechargeable batteries (the
battery charger is included).
To set up the active bridge is necessary to turn on the wireless bridge master device
and the module linked to the RS232/wireless adapter called “slave” and waiting for
their connection.
The next step is to turn on the wireless bridge slave device and the other module
and waiting for their connection.
In both cases the successful connection will be confirmed by the green light led
steadily on both the modules.
As soon as the connection is established it’s possible to check the battery status of
the Tx on the Rx display.
The optical fiber which connects the master and slave devices should pass under
the door in a fingerless zone, if the finger do not allow the fiber placement the proper
channel located typically near the filter’s panel should be used.
IMPORTANT NOTE: As soon as the connection is established, if the red led of the
wireless devices blink together with the yellow ones, wait until the complete switching
off of the first ones in order to let the devices synchronize and ensure the correct
functioning.
On the active bridge devices there is no red led, just wait for the complete switching off
of the red led on the TX/RX to ensure the proper functioning.
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USER’S MANUAL
SEMS
3.7. Measurement with Rod antennas mod. R1
When using Rod antennas( in the zero setting and in the measurement phase) it’s
absolutely necessary to connect the SEMS TX 10 dB attenuator ,already supplied,
before connecting the Rod antenna (image n.09)
WARNING: not using the attenuator can cause serious troubles to the system
functionality.
Picture n°09
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SEMS
4. SEMS PC Utility software, controls and
functions
4.1. Installation
Launch the Setup file located in the USB pen drive provided with the product and
follow the instructions.
After the installation the software is ready to use
Options menu
SEMS PC Utility starts from the desktop icon or from start / Programs.
The program has two working modes: Archive shown at the program start up and
List, in archive mode is possible to load files and show measurements, in the list
mode is possible to create and send to the receiver the list of frequencies for
customized measurements.
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SEMS
4.2.
Archive mode
Menu:
File
Save
Saves the files in the chosen directories
Load
Loads the files from the chosen directories
Export
Exports data in file.xls with two available data separators
Exit
Quits the program
Option
Select Comm
Selection of the com serial port
Graphic colors
Changes the graphic colors
Diagram style
Selection of two ways in order to represent the
data diagram
Default Graphic Axis
Restore the default graphic visualization
Tools
Retrieve
Single measure: Retrieve the stored measurements made in standard
mode (Std) from the receiver using RS232 connection
Set of measure: Retrieve the stored measurements made by the
wizard (Wiz) using RS232 connection
Get CalK Report: Produces a text file containing the last calibration
data performed using the CalK procedure. (You can find
CalK_Report.TXT file in the folder where you installed SEMS PC Utility
Software)
Update Firmware
Updates the receiver’s firmware
In the Archive mode you can see on the left side of the window the numerical results
that can be sorted by frequency or dB level, in the box below is possible to add a
comment when saving the data.
You can change the scale by double clicking on the maximum and minimum value
in the graphic.
(*) In addition to RS232 connection, you can connect the SEMS receiver to the PC
using the wireless device, the connection takes place between the SEMS receiver
wireless and the PC wireless.
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USER’S MANUAL
SEMS
4.3. List mode
Clicking on the List button, on the right bottom of the window, the second working
mode will be activated.
Here you can find how to create a frequency list to upload in the SEMS as
customized frequencies:
For an automatic table creation press the Scan button after Start Freq. , Stop Freq.
and Freq. Step are selected or Write List or List to insert manually any kind of
frequency. The maximum number of frequencies allowed for each scan or list is
640.
In order to edit a scan you need to activate the Editable List flag.
As the table creation is completed is possible to save on PC pressing the Save
button or uploading it to the receiver choosing one of the four available memories in
scan or three available memories in list.
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USER’S MANUAL
SEMS
4.4. Receiver firmware upgrade
Recharge the receiver batteries and connect it to the PC using RS232 cable.
Turn on the Rx, run the SEMSPC_Utility software and set the COM port in the
Option menu pressing Select Comm.
To verify the assignation of the COM port assigned by the PC check in the control
panel, System, Hardware, peripheral, ports.
To start the firmware update procedure, click the “Tools” button , Update Firmware,
Update Rx.
The following screenshot will appear:
Turn off the receiver and then turn it on again.
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USER’S MANUAL
SEMS
It will show the upgrade window:
The updatable file (SemsFw.ldr) should be located in the SEMS software directory.
Press the “Update Firmware” button and wait for the loading.
When the upgrade is completes, close the “Form1” window and turn off the receiver.
Other information: www.gruppompb.com
Technical information: assistenza@gruppompb.com
Phone +39 06 41200744
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